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V53

This commit is contained in:
joan 2016-05-31 18:44:12 +01:00
parent 09adafce0c
commit 3b56709a0e
14 changed files with 546 additions and 407 deletions
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4
command.c
View File

@ -26,7 +26,7 @@ For more information, please refer to <http://unlicense.org/>
*/
/*
This version is for pigpio version 48+
This version is for pigpio version 53+
*/
#include <stdio.h>
@ -426,7 +426,7 @@ static errInfo_t errInfo[]=
{PI_SOCK_READ_FAILED , "socket read failed"},
{PI_SOCK_WRIT_FAILED , "socket write failed"},
{PI_TOO_MANY_PARAM , "too many script parameters (> 10)"},
{PI_NOT_HALTED , "script already running or failed"},
{PI_SCRIPT_NOT_READY , "script initialising"},
{PI_BAD_TAG , "script has unresolved tag"},
{PI_BAD_MICS_DELAY , "bad MICS delay (too large)"},
{PI_BAD_MILS_DELAY , "bad MILS delay (too large)"},

2
command.h
View File

@ -26,7 +26,7 @@ For more information, please refer to <http://unlicense.org/>
*/
/*
This version is for pigpio version 23+
This version is for pigpio version 53+
*/
#ifndef COMMAND_H

54
pigpio.3
View File

@ -112,7 +112,8 @@ This use was inspired by Richard Hirst's servoblaster kernel module.
.br
.br
https://github.com/richardghirst/PiBits/tree/master/ServoBlaster
See \fBhttps://github.com/richardghirst/PiBits/tree/master/ServoBlaster\fP
.br
.br
@ -450,7 +451,7 @@ Sets the GPIO level, on or off.
.EX
gpio: 0-53
.br
level: 0,1
level: 0-1
.br
.EE
@ -749,8 +750,8 @@ PI_BAD_USER_GPIO.
.br
.br
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5).
If PWM is currently active on the GPIO it will be
switched off and then back on at the new frequency.
.br
@ -761,8 +762,8 @@ frequencies.
.br
.br
If PWM is currently active on the GPIO it will be
switched off and then back on at the new frequency.
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5).
.br
@ -1016,7 +1017,7 @@ user_gpio: 0-31
.br
.br
Returns , 0 (off), 500 (most anti-clockwise) to 2500 (most clockwise)
Returns 0 (off), 500 (most anti-clockwise) to 2500 (most clockwise)
if OK, otherwise PI_BAD_USER_GPIO or PI_NOT_SERVO_GPIO.
.IP "\fBint gpioSetAlertFunc(unsigned user_gpio, gpioAlertFunc_t f)\fP"
@ -1138,7 +1139,7 @@ void aFunction(int gpio, int level, uint32_t tick)
.br
.br
gpioSetAlertFunc(4F, aFunction);
gpioSetAlertFunc(4, aFunction);
.br
.EE
@ -1773,9 +1774,9 @@ data_bits: 1-32
.br
stop_bits: 2-8
.br
offset: 0-
offset: >=0
.br
numBytes: 1-
numBytes: >=1
.br
str: an array of chars (which may contain nulls)
.br
@ -2371,7 +2372,7 @@ normal logic. Default is PI_BB_SER_NORMAL.
.EX
user_gpio: 0-31
.br
invert: 0-1
invert: 0-1
.br
.EE
@ -2402,7 +2403,7 @@ user_gpio: 0-31, previously opened with \fBgpioSerialReadOpen\fP
.br
buf: an array to receive the read bytes
.br
bufSize: 0-
bufSize: >=0
.br
.EE
@ -2456,9 +2457,9 @@ This returns a handle for the device at the address on the I2C bus.
.br
.EX
i2cBus: 0-1
i2cBus: >=0
.br
i2cAddr: 0x00-0x7F
i2cAddr: 0-0x7F
.br
i2cFlags: 0
.br
@ -2472,6 +2473,12 @@ No flags are currently defined. This parameter should be set to zero.
.br
.br
Physically buses 0 and 1 are available on the Pi. Higher numbered buses
will be available if a kernel supported bus multiplexor is being used.
.br
.br
Returns a handle (>=0) if OK, otherwise PI_BAD_I2C_BUS, PI_BAD_I2C_ADDR,
PI_BAD_FLAGS, PI_NO_HANDLE, or PI_I2C_OPEN_FAILED.
@ -4386,6 +4393,11 @@ This function stores a null terminated script for later execution.
.br
.br
See \fBhttp://abyz.co.uk/rpi/pigpio/pigs.html#Scripts\fP for details.
.br
.br
.EX
@ -6266,7 +6278,7 @@ A function.
.br
.IP "\fBfrequency\fP: 0-" 0
.IP "\fBfrequency\fP: >=0" 0
.br
@ -6580,7 +6592,7 @@ One of
.br
.IP "\fBhandle\fP: 0-" 0
.IP "\fBhandle\fP: >=0" 0
.br
@ -6602,19 +6614,19 @@ A number referencing an object opened by one of
.br
.IP "\fBi2cAddr\fP" 0
.IP "\fBi2cAddr\fP: 0-0x7F" 0
The address of a device on the I2C bus.
.br
.br
.IP "\fBi2cBus\fP: 0-1" 0
.IP "\fBi2cBus\fP: >=0" 0
.br
.br
An I2C bus, 0 or 1.
An I2C bus number.
.br
@ -8097,7 +8109,9 @@ A 16-bit word value.
.br
#define PI_TOO_MANY_PARAM -61 // too many script parameters (> 10)
.br
#define PI_NOT_HALTED -62 // script already running or failed
#define PI_NOT_HALTED -62 // DEPRECATED
.br
#define PI_SCRIPT_NOT_READY -62 // script initialising
.br
#define PI_BAD_TAG -63 // script has unresolved tag
.br

11
pigpio.c
View File

@ -25,7 +25,7 @@ OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>
*/
/* pigpio version 52 */
/* pigpio version 53 */
/* include ------------------------------------------------------- */
@ -3645,9 +3645,6 @@ int i2cOpen(unsigned i2cBus, unsigned i2cAddr, unsigned i2cFlags)
CHECK_INITED;
if (i2cBus >= PI_NUM_I2C_BUS)
SOFT_ERROR(PI_BAD_I2C_BUS, "bad I2C bus (%d)", i2cBus);
if (i2cAddr > PI_MAX_I2C_ADDR)
SOFT_ERROR(PI_BAD_I2C_ADDR, "bad I2C address (%d)", i2cAddr);
@ -3683,7 +3680,7 @@ int i2cOpen(unsigned i2cBus, unsigned i2cAddr, unsigned i2cFlags)
if ((fd = open(dev, O_RDWR)) < 0)
{
i2cInfo[slot].state = PI_I2C_CLOSED;
return PI_I2C_OPEN_FAILED;
return PI_BAD_I2C_BUS;
}
}
@ -11026,7 +11023,7 @@ int gpioRunScript(unsigned script_id, unsigned numParam, uint32_t *param)
{
pthread_mutex_lock(&gpioScript[script_id].pthMutex);
if (gpioScript[script_id].run_state == PI_SCRIPT_HALTED)
if (gpioScript[script_id].run_state != PI_SCRIPT_INITING)
{
if ((numParam > 0) && (param != 0))
{
@ -11040,7 +11037,7 @@ int gpioRunScript(unsigned script_id, unsigned numParam, uint32_t *param)
}
else
{
status = PI_NOT_HALTED;
status = PI_SCRIPT_NOT_READY;
}
pthread_mutex_unlock(&gpioScript[script_id].pthMutex);

49
pigpio.h
View File

@ -31,7 +31,7 @@ For more information, please refer to <http://unlicense.org/>
#include <stdint.h>
#include <pthread.h>
#define PIGPIO_VERSION 52
#define PIGPIO_VERSION 53
/*TEXT
@ -73,7 +73,7 @@ The PWM and servo pulses are timed using the DMA and PWM peripherals.
This use was inspired by Richard Hirst's servoblaster kernel module.
[https://github.com/richardghirst/PiBits/tree/master/ServoBlaster]
See [[https://github.com/richardghirst/PiBits/tree/master/ServoBlaster]]
*Usage*
@ -623,7 +623,6 @@ typedef void *(gpioThreadFunc_t) (void *);
#define PI_SPI_SLOTS 16
#define PI_SER_SLOTS 8
#define PI_NUM_I2C_BUS 2
#define PI_MAX_I2C_ADDR 0x7F
#define PI_NUM_AUX_SPI_CHANNEL 3
@ -913,7 +912,7 @@ Sets the GPIO level, on or off.
. .
gpio: 0-53
level: 0,1
level: 0-1
. .
Returns 0 if OK, otherwise PI_BAD_GPIO or PI_BAD_LEVEL.
@ -1073,14 +1072,14 @@ frequency: >=0
Returns the numerically closest frequency if OK, otherwise
PI_BAD_USER_GPIO.
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5).
If PWM is currently active on the GPIO it will be
switched off and then back on at the new frequency.
Each GPIO can be independently set to one of 18 different PWM
frequencies.
If PWM is currently active on the GPIO it will be
switched off and then back on at the new frequency.
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5).
The frequencies for each sample rate are:
@ -1210,7 +1209,7 @@ Returns the servo pulsewidth setting for the GPIO.
user_gpio: 0-31
. .
Returns , 0 (off), 500 (most anti-clockwise) to 2500 (most clockwise)
Returns 0 (off), 500 (most anti-clockwise) to 2500 (most clockwise)
if OK, otherwise PI_BAD_USER_GPIO or PI_NOT_SERVO_GPIO.
D*/
@ -1271,7 +1270,7 @@ void aFunction(int gpio, int level, uint32_t tick)
// call aFunction whenever GPIO 4 changes state
gpioSetAlertFunc(4F, aFunction);
gpioSetAlertFunc(4, aFunction);
...
D*/
@ -1645,8 +1644,8 @@ user_gpio: 0-31
baud: 50-1000000
data_bits: 1-32
stop_bits: 2-8
offset: 0-
numBytes: 1-
offset: >=0
numBytes: >=1
str: an array of chars (which may contain nulls)
. .
@ -2017,7 +2016,7 @@ normal logic. Default is PI_BB_SER_NORMAL.
. .
user_gpio: 0-31
invert: 0-1
invert: 0-1
. .
Returns 0 if OK, otherwise PI_BAD_USER_GPIO, PI_GPIO_IN_USE,
@ -2037,7 +2036,7 @@ bit bang serial cyclic buffer to the buffer starting at buf.
. .
user_gpio: 0-31, previously opened with [*gpioSerialReadOpen*]
buf: an array to receive the read bytes
bufSize: 0-
bufSize: >=0
. .
Returns the number of bytes copied if OK, otherwise PI_BAD_USER_GPIO
@ -2070,13 +2069,16 @@ int i2cOpen(unsigned i2cBus, unsigned i2cAddr, unsigned i2cFlags);
This returns a handle for the device at the address on the I2C bus.
. .
i2cBus: 0-1
i2cAddr: 0x00-0x7F
i2cBus: >=0
i2cAddr: 0-0x7F
i2cFlags: 0
. .
No flags are currently defined. This parameter should be set to zero.
Physically buses 0 and 1 are available on the Pi. Higher numbered buses
will be available if a kernel supported bus multiplexor is being used.
Returns a handle (>=0) if OK, otherwise PI_BAD_I2C_BUS, PI_BAD_I2C_ADDR,
PI_BAD_FLAGS, PI_NO_HANDLE, or PI_I2C_OPEN_FAILED.
@ -3189,6 +3191,8 @@ int gpioStoreScript(char *script);
/*D
This function stores a null terminated script for later execution.
See [[http://abyz.co.uk/rpi/pigpio/pigs.html#Scripts]] for details.
. .
script: the text of the script
. .
@ -4260,7 +4264,7 @@ f::
A function.
frequency::0-
frequency::>=0
The number of times a GPIO is swiched on and off per second. This
can be set per GPIO and may be as little as 5Hz or as much as
@ -4397,7 +4401,7 @@ One of
[*gpioWaveAddGeneric*]
[*gpioWaveAddSerial*]
handle::0-
handle::>=0
A number referencing an object opened by one of
@ -4406,12 +4410,12 @@ A number referencing an object opened by one of
[*serOpen*]
[*spiOpen*]
i2cAddr::
i2cAddr:: 0-0x7F
The address of a device on the I2C bus.
i2cBus::0-1
i2cBus::>=0
An I2C bus, 0 or 1.
An I2C bus number.
i2cFlags::0
@ -5119,7 +5123,8 @@ after this command is issued.
#define PI_SOCK_READ_FAILED -59 // socket read failed
#define PI_SOCK_WRIT_FAILED -60 // socket write failed
#define PI_TOO_MANY_PARAM -61 // too many script parameters (> 10)
#define PI_NOT_HALTED -62 // script already running or failed
#define PI_NOT_HALTED -62 // DEPRECATED
#define PI_SCRIPT_NOT_READY -62 // script initialising
#define PI_BAD_TAG -63 // script has unresolved tag
#define PI_BAD_MICS_DELAY -64 // bad MICS delay (too large)
#define PI_BAD_MILS_DELAY -65 // bad MILS delay (too large)

96
pigpio.py
View File

@ -176,7 +176,7 @@ wave_add_generic Adds a series of pulses to the waveform
wave_add_serial Adds serial data to the waveform
wave_create Creates a waveform from added data
wave_delete Deletes one or more waveforms
wave_delete Deletes a waveform
wave_send_once Transmits a waveform once
wave_send_repeat Transmits a waveform repeatedly
@ -270,7 +270,7 @@ import threading
import os
import atexit
VERSION = "1.30"
VERSION = "1.31"
exceptions = True
@ -524,7 +524,7 @@ PI_NO_MEMORY =-58
PI_SOCK_READ_FAILED =-59
PI_SOCK_WRIT_FAILED =-60
PI_TOO_MANY_PARAM =-61
PI_NOT_HALTED =-62
PI_SCRIPT_NOT_READY =-62
PI_BAD_TAG =-63
PI_BAD_MICS_DELAY =-64
PI_BAD_MILS_DELAY =-65
@ -652,7 +652,7 @@ _errors=[
[PI_SOCK_READ_FAILED , "socket read failed"],
[PI_SOCK_WRIT_FAILED , "socket write failed"],
[PI_TOO_MANY_PARAM , "too many script parameters (> 10)"],
[PI_NOT_HALTED , "script already running or failed"],
[PI_SCRIPT_NOT_READY , "script initialising"],
[PI_BAD_TAG , "script has unresolved tag"],
[PI_BAD_MICS_DELAY , "bad MICS delay (too large)"],
[PI_BAD_MILS_DELAY , "bad MILS delay (too large)"],
@ -1247,7 +1247,43 @@ class pi():
user_gpio:= 0-31.
frequency:= >=0 Hz
Returns the frequency actually set.
Returns the numerically closest frequency if OK, otherwise
PI_BAD_USER_GPIO or PI_NOT_PERMITTED.
If PWM is currently active on the GPIO it will be switched
off and then back on at the new frequency.
Each GPIO can be independently set to one of 18 different
PWM frequencies.
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5). The
sample rate is set when the pigpio daemon is started.
The frequencies for each sample rate are:
. .
Hertz
1: 40000 20000 10000 8000 5000 4000 2500 2000 1600
1250 1000 800 500 400 250 200 100 50
2: 20000 10000 5000 4000 2500 2000 1250 1000 800
625 500 400 250 200 125 100 50 25
4: 10000 5000 2500 2000 1250 1000 625 500 400
313 250 200 125 100 63 50 25 13
sample
rate
(us) 5: 8000 4000 2000 1600 1000 800 500 400 320
250 200 160 100 80 50 40 20 10
8: 5000 2500 1250 1000 625 500 313 250 200
156 125 100 63 50 31 25 13 6
10: 4000 2000 1000 800 500 400 250 200 160
125 100 80 50 40 25 20 10 5
. .
...
pi.set_PWM_frequency(4,0)
@ -2256,8 +2292,8 @@ class pi():
"""
Returns a handle (>=0) for the device at the I2C bus address.
i2c_bus:= 0-1.
i2c_address:= 0x00-0x7F.
i2c_bus:= >=0.
i2c_address:= 0-0x7F.
i2c_flags:= 0, no flags are currently defined.
Normally you would only use the [*i2c_**] functions if
@ -2265,6 +2301,10 @@ class pi():
you will always run on the local Pi use the standard SMBus
module instead.
Physically buses 0 and 1 are available on the Pi. Higher
numbered buses will be available if a kernel supported bus
multiplexor is being used.
For the SMBus commands the low level transactions are shown
at the end of the function description. The following
abbreviations are used.
@ -3399,6 +3439,9 @@ class pi():
"""
Store a script for later execution.
See [[http://abyz.co.uk/rpi/pigpio/pigs.html#Scripts]] for
details.
script:= the script text as a series of bytes.
Returns a >=0 script id if OK.
@ -3726,7 +3769,7 @@ class pi():
user_gpio:= 0-31.
edge:= EITHER_EDGE, RISING_EDGE (default), or
FALLING_EDGE.
wait_timeout:= 0.0- (default 60.0).
wait_timeout:= >=0.0 (default 60.0).
The function returns when the edge is detected or after
the number of seconds specified by timeout has expired.
@ -3772,10 +3815,18 @@ class pi():
This connects to the pigpio daemon and reserves resources
to be used for sending commands and receiving notifications.
An instance attribute [*connected*] may be used to check the
success of the connection. If the connection is established
successfully [*connected*] will be True, otherwise False.
...
pi = pigio.pi() # use defaults
pi = pigpio.pi('mypi') # specify host, default port
pi = pigpio.pi('mypi', 7777) # specify host and port
pi = pigpio.pi() # exit script if no connection
if not pi.connected:
exit()
...
"""
self.connected = True
@ -3892,13 +3943,16 @@ def xref():
clkfreq: 4689-250M
The hardware clock frequency.
connected:
True if a connection was established, False otherwise.
count:
The number of bytes of data to be transferred.
data:
Data to be transmitted, a series of bytes.
delay: 1-
delay: >=1
The length of a pulse in microseconds.
dutycycle: 0-range_
@ -3958,7 +4012,7 @@ def xref():
PI_SOCK_READ_FAILED = -59
PI_SOCK_WRIT_FAILED = -60
PI_TOO_MANY_PARAM = -61
PI_NOT_HALTED = -62
PI_SCRIPT_NOT_READY = -62
PI_BAD_TAG = -63
PI_BAD_MICS_DELAY = -64
PI_BAD_MILS_DELAY = -65
@ -4029,11 +4083,11 @@ def xref():
gpio: 0-53
A Broadcom numbered GPIO. All the user GPIO are in the range 0-31.
There are 54 General Purpose Input Outputs (GPIO) named gpio0
through gpio53.
There are 54 General Purpose Input Outputs (GPIO) named GPIO0
through GPIO53.
They are split into two banks. Bank 1 consists of gpio0
through gpio31. Bank 2 consists of gpio32 through gpio53.
They are split into two banks. Bank 1 consists of GPIO0
through GPIO31. Bank 2 consists of GPIO32 through GPIO53.
All the GPIO which are safe for the user to read and write are in
bank 1. Not all GPIO in bank 1 are safe though. Type 1 boards
@ -4067,7 +4121,7 @@ def xref():
This mask selects the GPIO to be switched on at the start
of a pulse.
handle: 0-
handle: >=0
A number referencing an object opened by one of [*i2c_open*],
[*notify_open*], [*serial_open*], [*spi_open*].
@ -4077,13 +4131,13 @@ def xref():
i2c_*:
One of the i2c_ functions.
i2c_address:
i2c_address: 0-0x7F
The address of a device on the I2C bus.
i2c_bus: 0-1
i2c_bus: >=0
An I2C bus number.
i2c_flags: 32 bit
i2c_flags: 0
No I2C flags are currently defined.
invert: 0-1
@ -4119,7 +4173,7 @@ def xref():
WAVE_MODE_ONE_SHOT_SYNC = 2
WAVE_MODE_REPEAT_SYNC = 3
offset: 0-
offset: >=0
The offset wave data starts from the beginning of the waveform
being currently defined.
@ -4170,7 +4224,7 @@ def xref():
script:
The text of a script to store on the pigpio daemon.
script_id: 0-
script_id: >=0
A number referencing a script created by [*store_script*].
SDA:
@ -4226,7 +4280,7 @@ def xref():
wave_add_*:
One of [*wave_add_new*] , [*wave_add_generic*], [*wave_add_serial*].
wave_id: 0-
wave_id: >=0
A number referencing a wave created by [*wave_create*].
wave_send_*:

80
pigpiod_if.3
View File

@ -615,7 +615,7 @@ Set the frequency (in Hz) of the PWM to be used on the GPIO.
.EX
user_gpio: 0-31.
.br
frequency: 0- (Hz).
frequency: >=0 (Hz).
.br
.EE
@ -629,9 +629,8 @@ PI_BAD_USER_GPIO or PI_NOT_PERMITTED.
.br
.br
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5). The
sample rate is set when the C pigpio library is started.
If PWM is currently active on the GPIO it will be switched
off and then back on at the new frequency.
.br
@ -642,47 +641,59 @@ PWM frequencies.
.br
.br
If PWM is currently active on the GPIO it will be switched
off and then back on at the new frequency.
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5). The
sample rate is set when the pigpio daemon is started.
.br
.br
The frequencies for each sample rate are:
.br
.br
.EX
1us 40000, 20000, 10000, 8000, 5000, 4000, 2500, 2000, 1600,
.br
1250, 1000, 800, 500, 400, 250, 200, 100, 50
Hertz
.br
.br
2us 20000, 10000, 5000, 4000, 2500, 2000, 1250, 1000, 800,
1: 40000 20000 10000 8000 5000 4000 2500 2000 1600
.br
625, 500, 400, 250, 200, 125, 100, 50 , 25
1250 1000 800 500 400 250 200 100 50
.br
.br
4us 10000, 5000, 2500, 2000, 1250, 1000, 625, 500, 400,
2: 20000 10000 5000 4000 2500 2000 1250 1000 800
.br
313, 250, 200, 125, 100, 63, 50, 25, 13
625 500 400 250 200 125 100 50 25
.br
.br
5us 8000, 4000, 2000, 1600, 1000, 800, 500, 400, 320,
4: 10000 5000 2500 2000 1250 1000 625 500 400
.br
250, 200, 160, 100 , 80, 50, 40, 20, 10
313 250 200 125 100 63 50 25 13
.br
sample
.br
rate
.br
(us) 5: 8000 4000 2000 1600 1000 800 500 400 320
.br
250 200 160 100 80 50 40 20 10
.br
.br
8us 5000, 2500, 1250, 1000, 625, 500, 313, 250, 200,
8: 5000 2500 1250 1000 625 500 313 250 200
.br
156, 125, 100, 63, 50, 31, 25, 13, 6
156 125 100 63 50 31 25 13 6
.br
.br
10us 4000, 2000, 1000, 800, 500, 400, 250, 200, 160,
10: 4000 2000 1000 800 500 400 250 200 160
.br
125, 100, 80, 50, 40, 25, 20, 10, 5
125 100 80 50 40 25 20 10 5
.br
.EE
@ -1519,9 +1530,9 @@ data_bits: number of data bits (1-32)
.br
stop_bits: number of stop half bits (2-8)
.br
offset: 0-
offset: >=0
.br
numBytes: 1-
numBytes: >=1
.br
str: an array of chars.
.br
@ -2049,6 +2060,11 @@ This function stores a script for later execution.
.br
.br
See \fBhttp://abyz.co.uk/rpi/pigpio/pigs.html#Scripts\fP for details.
.br
.br
.EX
@ -2232,7 +2248,7 @@ user_gpio: 0-31, previously opened with \fBbb_serial_read_open\fP.
.br
buf: an array to receive the read bytes.
.br
bufSize: 0-
bufSize: >=0
.br
.EE
@ -2307,9 +2323,9 @@ This returns a handle for the device at address i2c_addr on bus i2c_bus.
.br
.EX
i2c_bus: 0-1.
i2c_bus: >=0.
.br
i2c_addr: 0x00-0x7F.
i2c_addr: 0-0x7F.
.br
i2c_flags: 0.
.br
@ -2323,6 +2339,12 @@ No flags are currently defined. This parameter should be set to zero.
.br
.br
Physically buses 0 and 1 are available on the Pi. Higher numbered buses
will be available if a kernel supported bus multiplexor is being used.
.br
.br
Returns a handle (>=0) if OK, otherwise PI_BAD_I2C_BUS, PI_BAD_I2C_ADDR,
PI_BAD_FLAGS, PI_NO_HANDLE, or PI_I2C_OPEN_FAILED.
@ -4076,7 +4098,7 @@ A function.
.br
.IP "\fBfrequency\fP: 0-" 0
.IP "\fBfrequency\fP: >=0" 0
The number of times a GPIO is swiched on and off per second. This
can be set per GPIO and may be as little as 5Hz or as much as
40KHz. The GPIO will be on for a proportion of the time as defined
@ -4186,7 +4208,7 @@ typedef void *(gpioThreadFunc_t) (void *);
.br
.IP "\fBhandle\fP: 0-" 0
.IP "\fBhandle\fP: >=0" 0
A number referencing an object opened by one of \fBi2c_open\fP, \fBnotify_open\fP,
\fBserial_open\fP, and \fBspi_open\fP.
@ -4194,15 +4216,15 @@ A number referencing an object opened by one of \fBi2c_open\fP, \fBnotify_open\f
.br
.IP "\fBi2c_addr\fP" 0
.IP "\fBi2c_addr\fP: 0-0x7F" 0
The address of a device on the I2C bus.
.br
.br
.IP "\fBi2c_bus\fP: 0-1" 0
An I2C bus, 0 or 1.
.IP "\fBi2c_bus\fP: >=0" 0
An I2C bus number.
.br

2
pigpiod_if.c
View File

@ -25,7 +25,7 @@ OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>
*/
/* PIGPIOD_IF_VERSION 21 */
/* PIGPIOD_IF_VERSION 23 */
#include <stdio.h>
#include <stdlib.h>

68
pigpiod_if.h
View File

@ -30,7 +30,7 @@ For more information, please refer to <http://unlicense.org/>
#include "pigpio.h"
#define PIGPIOD_IF_VERSION 22
#define PIGPIOD_IF_VERSION 23
/*TEXT
@ -565,40 +565,45 @@ Set the frequency (in Hz) of the PWM to be used on the GPIO.
. .
user_gpio: 0-31.
frequency: 0- (Hz).
frequency: >=0 (Hz).
. .
Returns the numerically closest frequency if OK, otherwise
PI_BAD_USER_GPIO or PI_NOT_PERMITTED.
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5). The
sample rate is set when the C pigpio library is started.
If PWM is currently active on the GPIO it will be switched
off and then back on at the new frequency.
Each GPIO can be independently set to one of 18 different
PWM frequencies.
If PWM is currently active on the GPIO it will be switched
off and then back on at the new frequency.
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5). The
sample rate is set when the pigpio daemon is started.
The frequencies for each sample rate are:
. .
1us 40000, 20000, 10000, 8000, 5000, 4000, 2500, 2000, 1600,
1250, 1000, 800, 500, 400, 250, 200, 100, 50
Hertz
2us 20000, 10000, 5000, 4000, 2500, 2000, 1250, 1000, 800,
625, 500, 400, 250, 200, 125, 100, 50 , 25
1: 40000 20000 10000 8000 5000 4000 2500 2000 1600
1250 1000 800 500 400 250 200 100 50
4us 10000, 5000, 2500, 2000, 1250, 1000, 625, 500, 400,
313, 250, 200, 125, 100, 63, 50, 25, 13
2: 20000 10000 5000 4000 2500 2000 1250 1000 800
625 500 400 250 200 125 100 50 25
5us 8000, 4000, 2000, 1600, 1000, 800, 500, 400, 320,
250, 200, 160, 100 , 80, 50, 40, 20, 10
4: 10000 5000 2500 2000 1250 1000 625 500 400
313 250 200 125 100 63 50 25 13
sample
rate
(us) 5: 8000 4000 2000 1600 1000 800 500 400 320
250 200 160 100 80 50 40 20 10
8us 5000, 2500, 1250, 1000, 625, 500, 313, 250, 200,
156, 125, 100, 63, 50, 31, 25, 13, 6
8: 5000 2500 1250 1000 625 500 313 250 200
156 125 100 63 50 31 25 13 6
10us 4000, 2000, 1000, 800, 500, 400, 250, 200, 160,
125, 100, 80, 50, 40, 25, 20, 10, 5
10: 4000 2000 1000 800 500 400 250 200 160
125 100 80 50 40 25 20 10 5
. .
D*/
@ -1097,8 +1102,8 @@ user_gpio: 0-31.
baud: 50-1000000
data_bits: number of data bits (1-32)
stop_bits: number of stop half bits (2-8)
offset: 0-
numBytes: 1-
offset: >=0
numBytes: >=1
str: an array of chars.
. .
@ -1421,6 +1426,8 @@ int store_script(char *script);
/*D
This function stores a script for later execution.
See [[http://abyz.co.uk/rpi/pigpio/pigs.html#Scripts]] for details.
. .
script: the text of the script.
. .
@ -1528,7 +1535,7 @@ bit bang serial cyclic buffer to the buffer starting at buf.
. .
user_gpio: 0-31, previously opened with [*bb_serial_read_open*].
buf: an array to receive the read bytes.
bufSize: 0-
bufSize: >=0
. .
Returns the number of bytes copied if OK, otherwise PI_BAD_USER_GPIO
@ -1573,13 +1580,16 @@ int i2c_open(unsigned i2c_bus, unsigned i2c_addr, unsigned i2c_flags);
This returns a handle for the device at address i2c_addr on bus i2c_bus.
. .
i2c_bus: 0-1.
i2c_addr: 0x00-0x7F.
i2c_bus: >=0.
i2c_addr: 0-0x7F.
i2c_flags: 0.
. .
No flags are currently defined. This parameter should be set to zero.
Physically buses 0 and 1 are available on the Pi. Higher numbered buses
will be available if a kernel supported bus multiplexor is being used.
Returns a handle (>=0) if OK, otherwise PI_BAD_I2C_BUS, PI_BAD_I2C_ADDR,
PI_BAD_FLAGS, PI_NO_HANDLE, or PI_I2C_OPEN_FAILED.
@ -2560,7 +2570,7 @@ of the error.
f::
A function.
frequency::0-
frequency::>=0
The number of times a GPIO is swiched on and off per second. This
can be set per GPIO and may be as little as 5Hz or as much as
40KHz. The GPIO will be on for a proportion of the time as defined
@ -2611,15 +2621,15 @@ gpioThreadFunc_t::
typedef void *(gpioThreadFunc_t) (void *);
. .
handle::0-
handle::>=0
A number referencing an object opened by one of [*i2c_open*], [*notify_open*],
[*serial_open*], and [*spi_open*].
i2c_addr::
i2c_addr:: 0-0x7F
The address of a device on the I2C bus.
i2c_bus::0-1
An I2C bus, 0 or 1.
i2c_bus::>=0
An I2C bus number.
i2c_flags::0
Flags which modify an I2C open command. None are currently defined.

286
pigpiod_if2.3
View File

@ -312,7 +312,7 @@ resources used by the library.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -326,7 +326,7 @@ Set the GPIO mode.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
gpio: 0-53.
.br
@ -352,7 +352,7 @@ Get the GPIO mode.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
gpio: 0-53.
.br
@ -373,7 +373,7 @@ Set or clear the GPIO pull-up/down resistor.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
gpio: 0-53.
.br
@ -397,7 +397,7 @@ Read the GPIO level.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
gpio:0-53.
.br
@ -418,7 +418,7 @@ Write the GPIO level.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
gpio: 0-53.
.br
@ -452,7 +452,7 @@ Start (non-zero dutycycle) or stop (0) PWM pulses on the GPIO.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -483,7 +483,7 @@ Return the PWM dutycycle in use on a GPIO.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -522,7 +522,7 @@ Set the range of PWM values to be used on the GPIO.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -582,7 +582,7 @@ Get the range of PWM values being used on the GPIO.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -610,7 +610,7 @@ Get the real underlying range of PWM values being used on the GPIO.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -648,11 +648,11 @@ Set the frequency (in Hz) of the PWM to be used on the GPIO.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
frequency: 0- (Hz).
frequency: >=0 (Hz).
.br
.EE
@ -666,9 +666,8 @@ PI_BAD_USER_GPIO or PI_NOT_PERMITTED.
.br
.br
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5). The
sample rate is set when the C pigpio library is started.
If PWM is currently active on the GPIO it will be switched
off and then back on at the new frequency.
.br
@ -679,47 +678,59 @@ PWM frequencies.
.br
.br
If PWM is currently active on the GPIO it will be switched
off and then back on at the new frequency.
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5). The
sample rate is set when the pigpio daemon is started.
.br
.br
The frequencies for each sample rate are:
.br
.br
.EX
1us 40000, 20000, 10000, 8000, 5000, 4000, 2500, 2000, 1600,
.br
1250, 1000, 800, 500, 400, 250, 200, 100, 50
Hertz
.br
.br
2us 20000, 10000, 5000, 4000, 2500, 2000, 1250, 1000, 800,
1: 40000 20000 10000 8000 5000 4000 2500 2000 1600
.br
625, 500, 400, 250, 200, 125, 100, 50 , 25
1250 1000 800 500 400 250 200 100 50
.br
.br
4us 10000, 5000, 2500, 2000, 1250, 1000, 625, 500, 400,
2: 20000 10000 5000 4000 2500 2000 1250 1000 800
.br
313, 250, 200, 125, 100, 63, 50, 25, 13
625 500 400 250 200 125 100 50 25
.br
.br
5us 8000, 4000, 2000, 1600, 1000, 800, 500, 400, 320,
4: 10000 5000 2500 2000 1250 1000 625 500 400
.br
250, 200, 160, 100 , 80, 50, 40, 20, 10
313 250 200 125 100 63 50 25 13
.br
sample
.br
rate
.br
(us) 5: 8000 4000 2000 1600 1000 800 500 400 320
.br
250 200 160 100 80 50 40 20 10
.br
.br
8us 5000, 2500, 1250, 1000, 625, 500, 313, 250, 200,
8: 5000 2500 1250 1000 625 500 313 250 200
.br
156, 125, 100, 63, 50, 31, 25, 13, 6
156 125 100 63 50 31 25 13 6
.br
.br
10us 4000, 2000, 1000, 800, 500, 400, 250, 200, 160,
10: 4000 2000 1000 800 500 400 250 200 160
.br
125, 100, 80, 50, 40, 25, 20, 10, 5
125 100 80 50 40 25 20 10 5
.br
.EE
@ -733,7 +744,7 @@ Get the frequency of PWM being used on the GPIO.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -773,7 +784,7 @@ Start (500-2500) or stop (0) servo pulses on the GPIO.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -874,7 +885,7 @@ Return the servo pulsewidth in use on a GPIO.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -895,7 +906,7 @@ Get a free notification handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -937,7 +948,7 @@ Start notifications on a previously opened handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: 0-31 (as returned by \fBnotify_open\fP)
.br
@ -992,7 +1003,7 @@ Pause notifications on a previously opened handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: 0-31 (as returned by \fBnotify_open\fP)
.br
@ -1020,7 +1031,7 @@ release the handle for reuse.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: 0-31 (as returned by \fBnotify_open\fP)
.br
@ -1041,7 +1052,7 @@ Sets a watchdog for a GPIO.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -1101,7 +1112,7 @@ level is then reported. Level changes of less than
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31
.br
@ -1138,7 +1149,7 @@ which the process repeats.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31
.br
@ -1170,7 +1181,7 @@ Read the levels of the bank 1 GPIO (GPIO 0-31).
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -1190,7 +1201,7 @@ Read the levels of the bank 2 GPIO (GPIO 32-53).
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -1210,7 +1221,7 @@ Clears GPIO 0-31 if the corresponding bit in bits is set.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
bits: a bit mask with 1 set if the corresponding GPIO is
.br
@ -1239,7 +1250,7 @@ Clears GPIO 32-53 if the corresponding bit (0-21) in bits is set.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
bits: a bit mask with 1 set if the corresponding GPIO is
.br
@ -1268,7 +1279,7 @@ Sets GPIO 0-31 if the corresponding bit in bits is set.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
bits: a bit mask with 1 set if the corresponding GPIO is
.br
@ -1297,7 +1308,7 @@ Sets GPIO 32-53 if the corresponding bit (0-21) in bits is set.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
bits: a bit mask with 1 set if the corresponding GPIO is
.br
@ -1327,7 +1338,7 @@ Frequencies above 30MHz are unlikely to work.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
gpio: see description
.br
@ -1413,7 +1424,7 @@ daemon is started (option -t).
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
gpio: see descripton
.br
@ -1499,7 +1510,7 @@ Gets the current system tick.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -1528,7 +1539,7 @@ Get the Pi's hardware revision number.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -1580,7 +1591,7 @@ Returns the pigpio version.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -1595,7 +1606,7 @@ This function clears all waveforms and any data added by calls to the
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -1616,7 +1627,7 @@ created with the \fBwave_create\fP function.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -1635,7 +1646,7 @@ This function adds a number of pulses to the current waveform.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
numPulses: the number of pulses.
.br
@ -1679,7 +1690,7 @@ microseconds from the start of the waveform.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -1689,9 +1700,9 @@ data_bits: number of data bits (1-32)
.br
stop_bits: number of stop half bits (2-8)
.br
offset: 0-
offset: >=0
.br
numBytes: 1-
numBytes: >=1
.br
str: an array of chars.
.br
@ -1754,7 +1765,7 @@ PI_TOO_MANY_CBS, PI_TOO_MANY_OOL, or PI_NO_WAVEFORM_ID.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -1869,7 +1880,7 @@ This function deletes the waveform with id wave_id.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
wave_id: >=0, as returned by \fBwave_create\fP.
.br
@ -1901,7 +1912,7 @@ NOTE: Any hardware PWM started by \fBhardware_PWM\fP will be cancelled.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
wave_id: >=0, as returned by \fBwave_create\fP.
.br
@ -1930,7 +1941,7 @@ NOTE: Any hardware PWM started by \fBhardware_PWM\fP will be cancelled.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
wave_id: >=0, as returned by \fBwave_create\fP.
.br
@ -1952,7 +1963,7 @@ Transmits the waveform with id wave_id using mode mode.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
wave_id: >=0, as returned by \fBwave_create\fP.
.br
@ -2023,7 +2034,7 @@ codes and related data.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
buf: pointer to the wave_ids and optional command codes
.br
@ -2209,7 +2220,7 @@ transmitted.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2236,7 +2247,7 @@ transmitted.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2255,7 +2266,7 @@ This function stops the transmission of the current waveform.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2280,7 +2291,7 @@ waveform.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2295,7 +2306,7 @@ created since the pigpio daemon was started.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2311,7 +2322,7 @@ microseconds.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2325,7 +2336,7 @@ This function returns the length in pulses of the current waveform.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2340,7 +2351,7 @@ created since the pigpio daemon was started.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2354,7 +2365,7 @@ This function returns the maximum possible size of a waveform in pulses.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2369,7 +2380,7 @@ waveform.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2384,7 +2395,7 @@ waveform created since the pigpio daemon was started.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2399,7 +2410,7 @@ control blocks.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
.EE
@ -2414,7 +2425,7 @@ level for pulseLen microseconds and then reset to not level.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -2437,10 +2448,15 @@ This function stores a script for later execution.
.br
.br
See \fBhttp://abyz.co.uk/rpi/pigpio/pigs.html#Scripts\fP for details.
.br
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
script: the text of the script.
.br
@ -2462,7 +2478,7 @@ This function runs a stored script.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
script_id: >=0, as returned by \fBstore_script\fP.
.br
@ -2495,7 +2511,7 @@ as the current values of parameters 0 to 9.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
script_id: >=0, as returned by \fBstore_script\fP.
.br
@ -2547,7 +2563,7 @@ This function stops a running script.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
script_id: >=0, as returned by \fBstore_script\fP.
.br
@ -2568,7 +2584,7 @@ This function deletes a stored script.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
script_id: >=0, as returned by \fBstore_script\fP.
.br
@ -2589,7 +2605,7 @@ This function opens a GPIO for bit bang reading of serial data.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -2628,13 +2644,13 @@ bit bang serial cyclic buffer to the buffer starting at buf.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31, previously opened with \fBbb_serial_read_open\fP.
.br
buf: an array to receive the read bytes.
.br
bufSize: 0-
bufSize: >=0
.br
.EE
@ -2669,7 +2685,7 @@ This function closes a GPIO for bit bang reading of serial data.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31, previously opened with \fBbb_serial_read_open\fP.
.br
@ -2690,7 +2706,7 @@ This function inverts serial logic for big bang serial reads.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31, previously opened with \fBbb_serial_read_open\fP.
.br
@ -2713,11 +2729,11 @@ This returns a handle for the device at address i2c_addr on bus i2c_bus.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
i2c_bus: 0-1.
i2c_bus: >=0.
.br
i2c_addr: 0x00-0x7F.
i2c_addr: 0-0x7F.
.br
i2c_flags: 0.
.br
@ -2731,6 +2747,12 @@ No flags are currently defined. This parameter should be set to zero.
.br
.br
Physically buses 0 and 1 are available on the Pi. Higher numbered buses
will be available if a kernel supported bus multiplexor is being used.
.br
.br
Returns a handle (>=0) if OK, otherwise PI_BAD_I2C_BUS, PI_BAD_I2C_ADDR,
PI_BAD_FLAGS, PI_NO_HANDLE, or PI_I2C_OPEN_FAILED.
@ -2780,7 +2802,7 @@ This closes the I2C device associated with the handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -2802,7 +2824,7 @@ with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -2837,7 +2859,7 @@ This sends a single byte to the device associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -2872,7 +2894,7 @@ This reads a single byte from the device associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -2906,7 +2928,7 @@ associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -2944,7 +2966,7 @@ associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -2982,7 +3004,7 @@ associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -3018,7 +3040,7 @@ associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -3056,7 +3078,7 @@ associated with handle and and reads 16 bits of data in return.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -3096,7 +3118,7 @@ associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -3138,7 +3160,7 @@ the device associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -3184,7 +3206,7 @@ of bytes of data in return.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -3237,7 +3259,7 @@ associated with handle . The count may be 1-32.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -3278,7 +3300,7 @@ associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -3316,7 +3338,7 @@ This reads count bytes from the raw device into buf.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -3352,7 +3374,7 @@ This writes count bytes from buf to the raw device.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2c_open\fP.
.br
@ -3390,7 +3412,7 @@ which contains the concatenated command codes and associated data.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBi2cOpen\fP
.br
@ -3527,7 +3549,7 @@ o I2C on any pair of spare GPIO
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
SDA: 0-31
.br
@ -3565,7 +3587,7 @@ opened with \fBbb_i2c_open\fP.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
SDA: 0-31, the SDA GPIO used in a prior call to \fBbb_i2c_open\fP
.br
@ -3588,7 +3610,7 @@ which contains the concatenated command codes and associated data.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
SDA: 0-31 (as used in a prior call to \fBbb_i2c_open\fP)
.br
@ -3737,7 +3759,7 @@ selectable word size in bits.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
spi_channel: 0-1 (0-2 for the auxiliary device).
.br
@ -3883,7 +3905,7 @@ This functions closes the SPI device identified by the handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBspi_open\fP.
.br
@ -3905,7 +3927,7 @@ device associated with the handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBspi_open\fP.
.br
@ -3932,7 +3954,7 @@ device associated with the handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBspi_open\fP.
.br
@ -3960,7 +3982,7 @@ data are read from the device and placed in rxBuf.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBspi_open\fP.
.br
@ -3989,7 +4011,7 @@ with specified flags.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
ser_tty: the serial device to open, /dev/tty*.
.br
@ -4027,7 +4049,7 @@ This function closes the serial device associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBserial_open\fP.
.br
@ -4048,7 +4070,7 @@ This function writes bVal to the serial port associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBserial_open\fP.
.br
@ -4070,7 +4092,7 @@ This function reads a byte from the serial port associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBserial_open\fP.
.br
@ -4093,7 +4115,7 @@ associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBserial_open\fP.
.br
@ -4120,7 +4142,7 @@ associated with handle and writes them to buf.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBserial_open\fP.
.br
@ -4147,7 +4169,7 @@ device associated with handle.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
handle: >=0, as returned by a call to \fBserial_open\fP.
.br
@ -4174,7 +4196,7 @@ It returns a single integer value.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
arg1: >=0
.br
@ -4208,7 +4230,7 @@ rather than just an integer.
The return value is an integer indicating the number of returned bytes.
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
arg1: >=0
.br
@ -4242,7 +4264,7 @@ This function initialises a new callback.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -4274,7 +4296,7 @@ This function initialises a new callback.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -4328,7 +4350,7 @@ seconds.
.br
.EX
pi: 0- (as returned by \fBpigpio_start\fP).
pi: >=0 (as returned by \fBpigpio_start\fP).
.br
user_gpio: 0-31.
.br
@ -4608,7 +4630,7 @@ A function.
.br
.IP "\fBfrequency\fP: 0-" 0
.IP "\fBfrequency\fP: >=0" 0
The number of times a GPIO is swiched on and off per second. This
can be set per GPIO and may be as little as 5Hz or as much as
40KHz. The GPIO will be on for a proportion of the time as defined
@ -4718,7 +4740,7 @@ typedef void *(gpioThreadFunc_t) (void *);
.br
.IP "\fBhandle\fP: 0-" 0
.IP "\fBhandle\fP: >=0" 0
A number referencing an object opened by one of \fBi2c_open\fP, \fBnotify_open\fP,
\fBserial_open\fP, and \fBspi_open\fP.
@ -4726,15 +4748,15 @@ A number referencing an object opened by one of \fBi2c_open\fP, \fBnotify_open\f
.br
.IP "\fBi2c_addr\fP" 0
.IP "\fBi2c_addr\fP: 0-0x7F" 0
The address of a device on the I2C bus.
.br
.br
.IP "\fBi2c_bus\fP: 0-1" 0
An I2C bus, 0 or 1.
.IP "\fBi2c_bus\fP: >=0" 0
An I2C bus number.
.br

2
pigpiod_if2.c
View File

@ -25,7 +25,7 @@ OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>
*/
/* PIGPIOD_IF2_VERSION 5 */
/* PIGPIOD_IF2_VERSION 6 */
#include <stdio.h>
#include <stdlib.h>

274
pigpiod_if2.h
View File

@ -30,7 +30,7 @@ For more information, please refer to <http://unlicense.org/>
#include "pigpio.h"
#define PIGPIOD_IF2_VERSION 5
#define PIGPIOD_IF2_VERSION 6
/*TEXT
@ -387,7 +387,7 @@ Terminates the connection to a pigpio daemon and releases
resources used by the library.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -397,7 +397,7 @@ int set_mode(int pi, unsigned gpio, unsigned mode);
Set the GPIO mode.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
gpio: 0-53.
mode: PI_INPUT, PI_OUTPUT, PI_ALT0, _ALT1,
PI_ALT2, PI_ALT3, PI_ALT4, PI_ALT5.
@ -413,7 +413,7 @@ int get_mode(int pi, unsigned gpio);
Get the GPIO mode.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
gpio: 0-53.
. .
@ -426,7 +426,7 @@ int set_pull_up_down(int pi, unsigned gpio, unsigned pud);
Set or clear the GPIO pull-up/down resistor.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
gpio: 0-53.
pud: PI_PUD_UP, PI_PUD_DOWN, PI_PUD_OFF.
. .
@ -441,7 +441,7 @@ int gpio_read(int pi, unsigned gpio);
Read the GPIO level.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
gpio:0-53.
. .
@ -454,7 +454,7 @@ int gpio_write(int pi, unsigned gpio, unsigned level);
Write the GPIO level.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
gpio: 0-53.
level: 0, 1.
. .
@ -473,7 +473,7 @@ int set_PWM_dutycycle(int pi, unsigned user_gpio, unsigned dutycycle);
Start (non-zero dutycycle) or stop (0) PWM pulses on the GPIO.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
dutycycle: 0-range (range defaults to 255).
. .
@ -492,7 +492,7 @@ int get_PWM_dutycycle(int pi, unsigned user_gpio);
Return the PWM dutycycle in use on a GPIO.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
. .
@ -514,7 +514,7 @@ int set_PWM_range(int pi, unsigned user_gpio, unsigned range);
Set the range of PWM values to be used on the GPIO.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
range: 25-40000.
. .
@ -545,7 +545,7 @@ int get_PWM_range(int pi, unsigned user_gpio);
Get the range of PWM values being used on the GPIO.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
. .
@ -562,7 +562,7 @@ int get_PWM_real_range(int pi, unsigned user_gpio);
Get the real underlying range of PWM values being used on the GPIO.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
. .
@ -583,42 +583,47 @@ int set_PWM_frequency(int pi, unsigned user_gpio, unsigned frequency);
Set the frequency (in Hz) of the PWM to be used on the GPIO.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
frequency: 0- (Hz).
frequency: >=0 (Hz).
. .
Returns the numerically closest frequency if OK, otherwise
PI_BAD_USER_GPIO or PI_NOT_PERMITTED.
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5). The
sample rate is set when the C pigpio library is started.
If PWM is currently active on the GPIO it will be switched
off and then back on at the new frequency.
Each GPIO can be independently set to one of 18 different
PWM frequencies.
If PWM is currently active on the GPIO it will be switched
off and then back on at the new frequency.
The selectable frequencies depend upon the sample rate which
may be 1, 2, 4, 5, 8, or 10 microseconds (default 5). The
sample rate is set when the pigpio daemon is started.
The frequencies for each sample rate are:
. .
1us 40000, 20000, 10000, 8000, 5000, 4000, 2500, 2000, 1600,
1250, 1000, 800, 500, 400, 250, 200, 100, 50
Hertz
2us 20000, 10000, 5000, 4000, 2500, 2000, 1250, 1000, 800,
625, 500, 400, 250, 200, 125, 100, 50 , 25
1: 40000 20000 10000 8000 5000 4000 2500 2000 1600
1250 1000 800 500 400 250 200 100 50
4us 10000, 5000, 2500, 2000, 1250, 1000, 625, 500, 400,
313, 250, 200, 125, 100, 63, 50, 25, 13
2: 20000 10000 5000 4000 2500 2000 1250 1000 800
625 500 400 250 200 125 100 50 25
5us 8000, 4000, 2000, 1600, 1000, 800, 500, 400, 320,
250, 200, 160, 100 , 80, 50, 40, 20, 10
4: 10000 5000 2500 2000 1250 1000 625 500 400
313 250 200 125 100 63 50 25 13
sample
rate
(us) 5: 8000 4000 2000 1600 1000 800 500 400 320
250 200 160 100 80 50 40 20 10
8us 5000, 2500, 1250, 1000, 625, 500, 313, 250, 200,
156, 125, 100, 63, 50, 31, 25, 13, 6
8: 5000 2500 1250 1000 625 500 313 250 200
156 125 100 63 50 31 25 13 6
10us 4000, 2000, 1000, 800, 500, 400, 250, 200, 160,
125, 100, 80, 50, 40, 25, 20, 10, 5
10: 4000 2000 1000 800 500 400 250 200 160
125 100 80 50 40 25 20 10 5
. .
D*/
@ -628,7 +633,7 @@ int get_PWM_frequency(int pi, unsigned user_gpio);
Get the frequency of PWM being used on the GPIO.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
. .
@ -651,7 +656,7 @@ int set_servo_pulsewidth(int pi, unsigned user_gpio, unsigned pulsewidth);
Start (500-2500) or stop (0) servo pulses on the GPIO.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
pulsewidth: 0 (off), 500 (anti-clockwise) - 2500 (clockwise).
. .
@ -701,7 +706,7 @@ int get_servo_pulsewidth(int pi, unsigned user_gpio);
Return the servo pulsewidth in use on a GPIO.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
. .
@ -714,7 +719,7 @@ int notify_open(int pi);
Get a free notification handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
Returns a handle greater than or equal to zero if OK,
@ -740,7 +745,7 @@ int notify_begin(int pi, unsigned handle, uint32_t bits);
Start notifications on a previously opened handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: 0-31 (as returned by [*notify_open*])
bits: a mask indicating the GPIO to be notified.
. .
@ -768,7 +773,7 @@ int notify_pause(int pi, unsigned handle);
Pause notifications on a previously opened handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: 0-31 (as returned by [*notify_open*])
. .
@ -785,7 +790,7 @@ Stop notifications on a previously opened handle and
release the handle for reuse.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: 0-31 (as returned by [*notify_open*])
. .
@ -798,7 +803,7 @@ int set_watchdog(int pi, unsigned user_gpio, unsigned timeout);
Sets a watchdog for a GPIO.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
timeout: 0-60000.
. .
@ -831,7 +836,7 @@ level is then reported. Level changes of less than
[*steady*] microseconds are ignored.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31
steady: 0-300000
. .
@ -854,7 +859,7 @@ on the GPIO are then reported for [*active*] microseconds after
which the process repeats.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31
steady: 0-300000
active: 0-1000000
@ -873,7 +878,7 @@ uint32_t read_bank_1(int pi);
Read the levels of the bank 1 GPIO (GPIO 0-31).
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
The returned 32 bit integer has a bit set if the corresponding
@ -886,7 +891,7 @@ uint32_t read_bank_2(int pi);
Read the levels of the bank 2 GPIO (GPIO 32-53).
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
The returned 32 bit integer has a bit set if the corresponding
@ -899,7 +904,7 @@ int clear_bank_1(int pi, uint32_t bits);
Clears GPIO 0-31 if the corresponding bit in bits is set.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
bits: a bit mask with 1 set if the corresponding GPIO is
to be cleared.
. .
@ -916,7 +921,7 @@ int clear_bank_2(int pi, uint32_t bits);
Clears GPIO 32-53 if the corresponding bit (0-21) in bits is set.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
bits: a bit mask with 1 set if the corresponding GPIO is
to be cleared.
. .
@ -933,7 +938,7 @@ int set_bank_1(int pi, uint32_t bits);
Sets GPIO 0-31 if the corresponding bit in bits is set.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
bits: a bit mask with 1 set if the corresponding GPIO is
to be set.
. .
@ -950,7 +955,7 @@ int set_bank_2(int pi, uint32_t bits);
Sets GPIO 32-53 if the corresponding bit (0-21) in bits is set.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
bits: a bit mask with 1 set if the corresponding GPIO is
to be set.
. .
@ -969,7 +974,7 @@ Starts a hardware clock on a GPIO at the specified frequency.
Frequencies above 30MHz are unlikely to work.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
gpio: see description
frequency: 0 (off) or 4689-250000000 (250M)
. .
@ -1016,7 +1021,7 @@ main clock defaults to PCM but may be overridden when the pigpio
daemon is started (option -t).
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
gpio: see descripton
PWMfreq: 0 (off) or 1-125000000 (125M)
PWMduty: 0 (off) to 1000000 (1M)(fully on)
@ -1063,7 +1068,7 @@ uint32_t get_current_tick(int pi);
Gets the current system tick.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
Tick is the number of microseconds since system boot.
@ -1079,7 +1084,7 @@ uint32_t get_hardware_revision(int pi);
Get the Pi's hardware revision number.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
The hardware revision is the last few characters on the Revision line
@ -1106,7 +1111,7 @@ uint32_t get_pigpio_version(int pi);
Returns the pigpio version.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -1118,7 +1123,7 @@ This function clears all waveforms and any data added by calls to the
[*wave_add_**] functions.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
Returns 0 if OK.
@ -1132,7 +1137,7 @@ to call this function as it is automatically called after a waveform is
created with the [*wave_create*] function.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
Returns 0 if OK.
@ -1144,7 +1149,7 @@ int wave_add_generic(int pi, unsigned numPulses, gpioPulse_t *pulses);
This function adds a number of pulses to the current waveform.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
numPulses: the number of pulses.
pulses: an array of pulses.
. .
@ -1172,13 +1177,13 @@ existing waveform (if any). The serial data starts offset
microseconds from the start of the waveform.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
baud: 50-1000000
data_bits: number of data bits (1-32)
stop_bits: number of stop half bits (2-8)
offset: 0-
numBytes: 1-
offset: >=0
numBytes: >=1
str: an array of chars.
. .
@ -1213,7 +1218,7 @@ greater than or equal to 0 is returned, otherwise PI_EMPTY_WAVEFORM,
PI_TOO_MANY_CBS, PI_TOO_MANY_OOL, or PI_NO_WAVEFORM_ID.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
The data provided by the [*wave_add_**] functions is consumed by this
@ -1269,7 +1274,7 @@ int wave_delete(int pi, unsigned wave_id);
This function deletes the waveform with id wave_id.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
wave_id: >=0, as returned by [*wave_create*].
. .
@ -1288,7 +1293,7 @@ is sent once.
NOTE: Any hardware PWM started by [*hardware_PWM*] will be cancelled.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
wave_id: >=0, as returned by [*wave_create*].
. .
@ -1307,7 +1312,7 @@ by [*wave_tx_stop*]).
NOTE: Any hardware PWM started by [*hardware_PWM*] will be cancelled.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
wave_id: >=0, as returned by [*wave_create*].
. .
@ -1322,7 +1327,7 @@ int wave_send_using_mode(int pi, unsigned wave_id, unsigned mode);
Transmits the waveform with id wave_id using mode mode.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
wave_id: >=0, as returned by [*wave_create*].
mode: PI_WAVE_MODE_ONE_SHOT, PI_WAVE_MODE_REPEAT,
PI_WAVE_MODE_ONE_SHOT_SYNC, or PI_WAVE_MODE_REPEAT_SYNC.
@ -1359,7 +1364,7 @@ which contains an ordered list of [*wave_id*]s and optional command
codes and related data.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
buf: pointer to the wave_ids and optional command codes
bufSize: the number of bytes in buf
. .
@ -1450,7 +1455,7 @@ This function returns the id of the waveform currently being
transmitted.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
Returns the waveform id or one of the following special values:
@ -1466,7 +1471,7 @@ This function checks to see if a waveform is currently being
transmitted.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
Returns 1 if a waveform is currently being transmitted, otherwise 0.
@ -1478,7 +1483,7 @@ int wave_tx_stop(int pi);
This function stops the transmission of the current waveform.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
Returns 0 if OK.
@ -1493,7 +1498,7 @@ This function returns the length in microseconds of the current
waveform.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -1504,7 +1509,7 @@ This function returns the length in microseconds of the longest waveform
created since the pigpio daemon was started.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -1515,7 +1520,7 @@ This function returns the maximum possible size of a waveform in
microseconds.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -1525,7 +1530,7 @@ int wave_get_pulses(int pi);
This function returns the length in pulses of the current waveform.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -1536,7 +1541,7 @@ This function returns the length in pulses of the longest waveform
created since the pigpio daemon was started.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -1546,7 +1551,7 @@ int wave_get_max_pulses(int pi);
This function returns the maximum possible size of a waveform in pulses.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -1557,7 +1562,7 @@ This function returns the length in DMA control blocks of the current
waveform.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -1568,7 +1573,7 @@ This function returns the length in DMA control blocks of the longest
waveform created since the pigpio daemon was started.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -1579,7 +1584,7 @@ This function returns the maximum possible size of a waveform in DMA
control blocks.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
. .
D*/
@ -1590,7 +1595,7 @@ This function sends a trigger pulse to a GPIO. The GPIO is set to
level for pulseLen microseconds and then reset to not level.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
pulseLen: 1-100.
level: 0,1.
@ -1605,8 +1610,10 @@ int store_script(int pi, char *script);
/*D
This function stores a script for later execution.
See [[http://abyz.co.uk/rpi/pigpio/pigs.html#Scripts]] for details.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
script: the text of the script.
. .
@ -1620,7 +1627,7 @@ int run_script(int pi, unsigned script_id, unsigned numPar, uint32_t *param);
This function runs a stored script.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
script_id: >=0, as returned by [*store_script*].
numPar: 0-10, the number of parameters.
param: an array of parameters.
@ -1640,7 +1647,7 @@ This function returns the run status of a stored script as well
as the current values of parameters 0 to 9.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
script_id: >=0, as returned by [*store_script*].
param: an array to hold the returned 10 parameters.
. .
@ -1667,7 +1674,7 @@ int stop_script(int pi, unsigned script_id);
This function stops a running script.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
script_id: >=0, as returned by [*store_script*].
. .
@ -1680,7 +1687,7 @@ int delete_script(int pi, unsigned script_id);
This function deletes a stored script.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
script_id: >=0, as returned by [*store_script*].
. .
@ -1693,7 +1700,7 @@ int bb_serial_read_open(int pi, unsigned user_gpio, unsigned baud, unsigned data
This function opens a GPIO for bit bang reading of serial data.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
baud: 50-250000
data_bits: 1-32
@ -1716,10 +1723,10 @@ This function copies up to bufSize bytes of data read from the
bit bang serial cyclic buffer to the buffer starting at buf.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31, previously opened with [*bb_serial_read_open*].
buf: an array to receive the read bytes.
bufSize: 0-
bufSize: >=0
. .
Returns the number of bytes copied if OK, otherwise PI_BAD_USER_GPIO
@ -1739,7 +1746,7 @@ int bb_serial_read_close(int pi, unsigned user_gpio);
This function closes a GPIO for bit bang reading of serial data.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31, previously opened with [*bb_serial_read_open*].
. .
@ -1752,7 +1759,7 @@ int bb_serial_invert(int pi, unsigned user_gpio, unsigned invert);
This function inverts serial logic for big bang serial reads.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31, previously opened with [*bb_serial_read_open*].
invert: 0-1, 1 invert, 0 normal.
. .
@ -1766,14 +1773,17 @@ int i2c_open(int pi, unsigned i2c_bus, unsigned i2c_addr, unsigned i2c_flags);
This returns a handle for the device at address i2c_addr on bus i2c_bus.
. .
pi: 0- (as returned by [*pigpio_start*]).
i2c_bus: 0-1.
i2c_addr: 0x00-0x7F.
pi: >=0 (as returned by [*pigpio_start*]).
i2c_bus: >=0.
i2c_addr: 0-0x7F.
i2c_flags: 0.
. .
No flags are currently defined. This parameter should be set to zero.
Physically buses 0 and 1 are available on the Pi. Higher numbered buses
will be available if a kernel supported bus multiplexor is being used.
Returns a handle (>=0) if OK, otherwise PI_BAD_I2C_BUS, PI_BAD_I2C_ADDR,
PI_BAD_FLAGS, PI_NO_HANDLE, or PI_I2C_OPEN_FAILED.
@ -1800,7 +1810,7 @@ int i2c_close(int pi, unsigned handle);
This closes the I2C device associated with the handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
. .
@ -1814,7 +1824,7 @@ This sends a single bit (in the Rd/Wr bit) to the device associated
with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
bit: 0-1, the value to write.
. .
@ -1834,7 +1844,7 @@ int i2c_write_byte(int pi, unsigned handle, unsigned bVal);
This sends a single byte to the device associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
bVal: 0-0xFF, the value to write.
. .
@ -1854,7 +1864,7 @@ int i2c_read_byte(int pi, unsigned handle);
This reads a single byte from the device associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
. .
@ -1875,7 +1885,7 @@ This writes a single byte to the specified register of the device
associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
i2c_reg: 0-255, the register to write.
bVal: 0-0xFF, the value to write.
@ -1898,7 +1908,7 @@ This writes a single 16 bit word to the specified register of the device
associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
i2c_reg: 0-255, the register to write.
wVal: 0-0xFFFF, the value to write.
@ -1920,7 +1930,7 @@ This reads a single byte from the specified register of the device
associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
i2c_reg: 0-255, the register to read.
. .
@ -1941,7 +1951,7 @@ This reads a single 16 bit word from the specified register of the device
associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
i2c_reg: 0-255, the register to read.
. .
@ -1963,7 +1973,7 @@ This writes 16 bits of data to the specified register of the device
associated with handle and and reads 16 bits of data in return.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
i2c_reg: 0-255, the register to write/read.
wVal: 0-0xFFFF, the value to write.
@ -1987,7 +1997,7 @@ This writes up to 32 bytes to the specified register of the device
associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
i2c_reg: 0-255, the register to write.
buf: an array with the data to send.
@ -2011,7 +2021,7 @@ This reads a block of up to 32 bytes from the specified register of
the device associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
i2c_reg: 0-255, the register to read.
buf: an array to receive the read data.
@ -2038,7 +2048,7 @@ associated with handle and reads a device specified number
of bytes of data in return.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
i2c_reg: 0-255, the register to write/read.
buf: an array with the data to send and to receive the read data.
@ -2068,7 +2078,7 @@ This reads count bytes from the specified register of the device
associated with handle . The count may be 1-32.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
i2c_reg: 0-255, the register to read.
buf: an array to receive the read data.
@ -2093,7 +2103,7 @@ This writes 1 to 32 bytes to the specified register of the device
associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
i2c_reg: 0-255, the register to write.
buf: the data to write.
@ -2114,7 +2124,7 @@ int i2c_read_device(int pi, unsigned handle, char *buf, unsigned count);
This reads count bytes from the raw device into buf.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
buf: an array to receive the read data bytes.
count: >0, the number of bytes to read.
@ -2134,7 +2144,7 @@ int i2c_write_device(int pi, unsigned handle, char *buf, unsigned count);
This writes count bytes from buf to the raw device.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2c_open*].
buf: an array containing the data bytes to write.
count: >0, the number of bytes to write.
@ -2162,7 +2172,7 @@ operations to be performed are specified by the contents of inBuf
which contains the concatenated command codes and associated data.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*i2cOpen*]
inBuf: pointer to the concatenated I2C commands, see below
inLen: size of command buffer
@ -2226,7 +2236,7 @@ o clock stretching
o I2C on any pair of spare GPIO
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
SDA: 0-31
SCL: 0-31
baud: 50-500000
@ -2248,7 +2258,7 @@ This function stops bit banging I2C on a pair of GPIO previously
opened with [*bb_i2c_open*].
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
SDA: 0-31, the SDA GPIO used in a prior call to [*bb_i2c_open*]
. .
@ -2269,7 +2279,7 @@ operations to be performed are specified by the contents of inBuf
which contains the concatenated command codes and associated data.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
SDA: 0-31 (as used in a prior call to [*bb_i2c_open*])
inBuf: pointer to the concatenated I2C commands, see below
inLen: size of command buffer
@ -2342,7 +2352,7 @@ flags. The auxiliary device has 3 chip selects and a
selectable word size in bits.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
spi_channel: 0-1 (0-2 for the auxiliary device).
baud: 32K-125M (values above 30M are unlikely to work).
spi_flags: see below.
@ -2414,7 +2424,7 @@ int spi_close(int pi, unsigned handle);
This functions closes the SPI device identified by the handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*spi_open*].
. .
@ -2428,7 +2438,7 @@ This function reads count bytes of data from the SPI
device associated with the handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*spi_open*].
buf: an array to receive the read data bytes.
count: the number of bytes to read.
@ -2445,7 +2455,7 @@ This function writes count bytes of data from buf to the SPI
device associated with the handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*spi_open*].
buf: the data bytes to write.
count: the number of bytes to write.
@ -2464,7 +2474,7 @@ device associated with the handle. Simultaneously count bytes of
data are read from the device and placed in rxBuf.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*spi_open*].
txBuf: the data bytes to write.
rxBuf: the received data bytes.
@ -2482,7 +2492,7 @@ This function opens a serial device at a specified baud rate
with specified flags.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
ser_tty: the serial device to open, /dev/tty*.
baud: the baud rate in bits per second, see below.
ser_flags: 0.
@ -2504,7 +2514,7 @@ int serial_close(int pi, unsigned handle);
This function closes the serial device associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*serial_open*].
. .
@ -2517,7 +2527,7 @@ int serial_write_byte(int pi, unsigned handle, unsigned bVal);
This function writes bVal to the serial port associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*serial_open*].
. .
@ -2531,7 +2541,7 @@ int serial_read_byte(int pi, unsigned handle);
This function reads a byte from the serial port associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*serial_open*].
. .
@ -2546,7 +2556,7 @@ This function writes count bytes from buf to the the serial port
associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*serial_open*].
buf: the array of bytes to write.
count: the number of bytes to write.
@ -2563,7 +2573,7 @@ This function reads up to count bytes from the the serial port
associated with handle and writes them to buf.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*serial_open*].
buf: an array to receive the read data.
count: the maximum number of bytes to read.
@ -2580,7 +2590,7 @@ Returns the number of bytes available to be read from the
device associated with handle.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
handle: >=0, as returned by a call to [*serial_open*].
. .
@ -2596,7 +2606,7 @@ This function is available for user customisation.
It returns a single integer value.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
arg1: >=0
arg2: >=0
argx: extra (byte) arguments
@ -2618,7 +2628,7 @@ rather than just an integer.
The return value is an integer indicating the number of returned bytes.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
arg1: >=0
argc: extra (byte) arguments
count: number of extra arguments
@ -2638,7 +2648,7 @@ int callback(int pi, unsigned user_gpio, unsigned edge, CBFunc_t f);
This function initialises a new callback.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
edge: RISING_EDGE, FALLING_EDGE, or EITHER_EDGE.
f: the callback function.
@ -2658,7 +2668,7 @@ int callback_ex
This function initialises a new callback.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
edge: RISING_EDGE, FALLING_EDGE, or EITHER_EDGE.
f: the callback function.
@ -2691,7 +2701,7 @@ This function waits for edge on the GPIO for up to timeout
seconds.
. .
pi: 0- (as returned by [*pigpio_start*]).
pi: >=0 (as returned by [*pigpio_start*]).
user_gpio: 0-31.
edge: RISING_EDGE, FALLING_EDGE, or EITHER_EDGE.
timeout: >=0.
@ -2821,7 +2831,7 @@ of the error.
f::
A function.
frequency::0-
frequency::>=0
The number of times a GPIO is swiched on and off per second. This
can be set per GPIO and may be as little as 5Hz or as much as
40KHz. The GPIO will be on for a proportion of the time as defined
@ -2872,15 +2882,15 @@ gpioThreadFunc_t::
typedef void *(gpioThreadFunc_t) (void *);
. .
handle::0-
handle::>=0
A number referencing an object opened by one of [*i2c_open*], [*notify_open*],
[*serial_open*], and [*spi_open*].
i2c_addr::
i2c_addr::0-0x7F
The address of a device on the I2C bus.
i2c_bus::0-1
An I2C bus, 0 or 1.
i2c_bus::>=0
An I2C bus number.
i2c_flags::0
Flags which modify an I2C open command. None are currently defined.

17
pigs.1
View File

@ -881,6 +881,11 @@ ERROR: unknown handle
This command returns a handle to access device \fBid\fP on I2C bus \fBib\fP.
The device is opened with flags \fBif\fP.
.br
Physically buses 0 and 1 are available on the Pi. Higher
numbered buses will be available if a kernel supported bus
multiplexor is being used.
.br
No flags are currently defined. The parameter \fBif\fP should be 0.
@ -3388,7 +3393,7 @@ pigs wvcha \
.br
.br
while [[ $(pigs wvbsy) -eq 1 ]]; do sleep 0.1; done
while \fB $(pigs wvbsy) -eq 1 \fP; do sleep 0.1; done
.br
.br
@ -3953,12 +3958,12 @@ A handle is a number referencing an object opened by one of \fBI2CO\fP, \fBNO\fP
.br
.IP "\fBib\fP - I2C bus (0-1)" 0
The command expects an I2C bus.
.IP "\fBib\fP - I2C bus (>=0)" 0
The command expects an I2C bus number.
.br
.IP "\fBid\fP - I2C device (0x08-0x77)" 0
.IP "\fBid\fP - I2C device (0-0x7F)" 0
The command expects the address of an I2C device.
.br
@ -4309,7 +4314,7 @@ Again, ignore the details for now.
.br
.EX
time (pigs procr 0 10000000; while a=$(pigs procp 0); [[ ${a::1} -eq 2 ]];\
time (pigs procr 0 10000000; while a=$(pigs procp 0); \fB ${a::1} -eq 2 \fP;\
.br
do sleep 0.2; done)
.br
@ -4349,7 +4354,7 @@ jp 999 jumps to tag 999 if the result is positive.
.br
.EX
time (pigs procr 0 10000000; while a=$(pigs procp 0); [[ ${a::1} -eq 2 ]];\
time (pigs procr 0 10000000; while a=$(pigs procp 0); \fB ${a::1} -eq 2 \fP;\
.br
do sleep 0.2; done)
.br

2
setup.py
View File

@ -3,7 +3,7 @@
from distutils.core import setup
setup(name='pigpio',
version='1.30',
version='1.31',
author='joan',
author_email='joan@abyz.co.uk',
maintainer='joan',