diff --git a/pig2vcd.1 b/pig2vcd.1 index e5271ee..2ad95ae 100644 --- a/pig2vcd.1 +++ b/pig2vcd.1 @@ -2,7 +2,7 @@ ." Process this file with ." groff -man -Tascii pig2vcd.1 ." -.TH pig2vcd 1 2012-2018 Linux "pigpio archive" +.TH pig2vcd 1 2012-2019 Linux "pigpio archive" .SH NAME pig2vd - A utility to convert pigpio notifications to VCD. diff --git a/pigpio.3 b/pigpio.3 index f8c1675..b8f6789 100644 --- a/pigpio.3 +++ b/pigpio.3 @@ -2,7 +2,7 @@ ." Process this file with ." groff -man -Tascii pigpio.3 ." -.TH pigpio 3 2012-2018 Linux "pigpio archive" +.TH pigpio 3 2012-2019 Linux "pigpio archive" .SH NAME pigpio - A C library to manipulate the Pi's GPIO. @@ -115,11 +115,6 @@ This use was inspired by Richard Hirst's servoblaster kernel module. .br -.br -See \fBhttps://github.com/richardghirst/PiBits/tree/master/ServoBlaster\fP - -.br - .br .SS Usage .br @@ -194,6 +189,540 @@ error PI_INITIALISED. .br +.br + +.SH OVERVIEW + +.br +.SS ESSENTIAL +.br + +.br +gpioInitialise Initialise library +.br +gpioTerminate Stop library +.br +.SS BASIC +.br + +.br +gpioSetMode Set a GPIO mode +.br +gpioGetMode Get a GPIO mode +.br + +.br +gpioSetPullUpDown Set/clear GPIO pull up/down resistor +.br + +.br +gpioRead Read a GPIO +.br +gpioWrite Write a GPIO +.br +.SS PWM (overrides servo commands on same GPIO) +.br + +.br +gpioPWM Start/stop PWM pulses on a GPIO +.br +gpioSetPWMfrequency Configure PWM frequency for a GPIO +.br +gpioSetPWMrange Configure PWM range for a GPIO +.br + +.br +gpioGetPWMdutycycle Get dutycycle setting on a GPIO +.br +gpioGetPWMfrequency Get configured PWM frequency for a GPIO +.br +gpioGetPWMrange Get configured PWM range for a GPIO +.br + +.br +gpioGetPWMrealRange Get underlying PWM range for a GPIO +.br +.SS Servo (overrides PWM commands on same GPIO) +.br + +.br +gpioServo Start/stop servo pulses on a GPIO +.br + +.br +gpioGetServoPulsewidth Get pulsewidth setting on a GPIO +.br +.SS INTERMEDIATE +.br + +.br +gpioTrigger Send a trigger pulse to a GPIO +.br + +.br +gpioSetWatchdog Set a watchdog on a GPIO +.br + +.br +gpioRead_Bits_0_31 Read all GPIO in bank 1 +.br +gpioRead_Bits_32_53 Read all GPIO in bank 2 +.br + +.br +gpioWrite_Bits_0_31_Clear Clear selected GPIO in bank 1 +.br +gpioWrite_Bits_32_53_Clear Clear selected GPIO in bank 2 +.br + +.br +gpioWrite_Bits_0_31_Set Set selected GPIO in bank 1 +.br +gpioWrite_Bits_32_53_Set Set selected GPIO in bank 2 +.br + +.br +gpioSetAlertFunc Request a GPIO level change callback +.br +gpioSetAlertFuncEx Request a GPIO change callback, extended +.br + +.br +gpioSetTimerFunc Request a regular timed callback +.br +gpioSetTimerFuncEx Request a regular timed callback, extended +.br + +.br +gpioStartThread Start a new thread +.br +gpioStopThread Stop a previously started thread +.br +.SS ADVANCED +.br + +.br +gpioNotifyOpen Request a notification handle +.br +gpioNotifyClose Close a notification +.br +gpioNotifyOpenWithSize Request a notification with sized pipe +.br +gpioNotifyBegin Start notifications for selected GPIO +.br +gpioNotifyPause Pause notifications +.br + +.br +gpioHardwareClock Start hardware clock on supported GPIO +.br + +.br +gpioHardwarePWM Start hardware PWM on supported GPIO +.br + +.br +gpioGlitchFilter Set a glitch filter on a GPIO +.br +gpioNoiseFilter Set a noise filter on a GPIO +.br + +.br +gpioSetPad Sets a pads drive strength +.br +gpioGetPad Gets a pads drive strength +.br + +.br +shell Executes a shell command +.br + +.br +gpioSetISRFunc Request a GPIO interrupt callback +.br +gpioSetISRFuncEx Request a GPIO interrupt callback, extended +.br + +.br +gpioSetSignalFunc Request a signal callback +.br +gpioSetSignalFuncEx Request a signal callback, extended +.br + +.br +gpioSetGetSamplesFunc Requests a GPIO samples callback +.br +gpioSetGetSamplesFuncEx Requests a GPIO samples callback, extended +.br +.SS Custom +.br + +.br +gpioCustom1 User custom function 1 +.br +gpioCustom2 User custom function 2 +.br +.SS Events +.br + +.br +eventMonitor Sets the events to monitor +.br +eventSetFunc Request an event callback +.br +eventSetFuncEx Request an event callback, extended +.br + +.br +eventTrigger Trigger an event +.br +.SS Scripts +.br + +.br +gpioStoreScript Store a script +.br +gpioRunScript Run a stored script +.br +gpioUpdateScript Set a scripts parameters +.br +gpioScriptStatus Get script status and parameters +.br +gpioStopScript Stop a running script +.br +gpioDeleteScript Delete a stored script +.br +.SS I2C +.br + +.br +i2cOpen Opens an I2C device +.br +i2cClose Closes an I2C device +.br + +.br +i2cWriteQuick SMBus write quick +.br + +.br +i2cReadByte SMBus read byte +.br +i2cWriteByte SMBus write byte +.br + +.br +i2cReadByteData SMBus read byte data +.br +i2cWriteByteData SMBus write byte data +.br + +.br +i2cReadWordData SMBus read word data +.br +i2cWriteWordData SMBus write word data +.br + +.br +i2cReadBlockData SMBus read block data +.br +i2cWriteBlockData SMBus write block data +.br + +.br +i2cReadI2CBlockData SMBus read I2C block data +.br +i2cWriteI2CBlockData SMBus write I2C block data +.br + +.br +i2cReadDevice Reads the raw I2C device +.br +i2cWriteDevice Writes the raw I2C device +.br + +.br +i2cProcessCall SMBus process call +.br +i2cBlockProcessCall SMBus block process call +.br + +.br +i2cSwitchCombined Sets or clears the combined flag +.br + +.br +i2cSegments Performs multiple I2C transactions +.br + +.br +i2cZip Performs multiple I2C transactions +.br +.SS I2C BIT BANG +.br + +.br +bbI2COpen Opens GPIO for bit banging I2C +.br +bbI2CClose Closes GPIO for bit banging I2C +.br + +.br +bbI2CZip Performs bit banged I2C transactions +.br +.SS I2C/SPI SLAVE +.br + +.br +bscXfer I2C/SPI as slave transfer +.br +.SS SERIAL +.br + +.br +serOpen Opens a serial device +.br +serClose Closes a serial device +.br + +.br +serReadByte Reads a byte from a serial device +.br +serWriteByte Writes a byte to a serial device +.br + +.br +serRead Reads bytes from a serial device +.br +serWrite Writes bytes to a serial device +.br + +.br +serDataAvailable Returns number of bytes ready to be read +.br +.SS SERIAL BIT BANG (read only) +.br + +.br +gpioSerialReadOpen Opens a GPIO for bit bang serial reads +.br +gpioSerialReadClose Closes a GPIO for bit bang serial reads +.br + +.br +gpioSerialReadInvert Configures normal/inverted for serial reads +.br + +.br +gpioSerialRead Reads bit bang serial data from a GPIO +.br +.SS SPI +.br + +.br +spiOpen Opens a SPI device +.br +spiClose Closes a SPI device +.br + +.br +spiRead Reads bytes from a SPI device +.br +spiWrite Writes bytes to a SPI device +.br +spiXfer Transfers bytes with a SPI device +.br +.SS SPI BIT BANG +.br + +.br +bbSPIOpen Opens GPIO for bit banging SPI +.br +bbSPIClose Closes GPIO for bit banging SPI +.br + +.br +bbSPIXfer Performs bit banged SPI transactions +.br +.SS FILES +.br + +.br +fileOpen Opens a file +.br +fileClose Closes a file +.br + +.br +fileRead Reads bytes from a file +.br +fileWrite Writes bytes to a file +.br + +.br +fileSeek Seeks to a position within a file +.br + +.br +fileList List files which match a pattern +.br +.SS WAVES +.br + +.br +gpioWaveClear Deletes all waveforms +.br + +.br +gpioWaveAddNew Starts a new waveform +.br +gpioWaveAddGeneric Adds a series of pulses to the waveform +.br +gpioWaveAddSerial Adds serial data to the waveform +.br + +.br +gpioWaveCreate Creates a waveform from added data +.br +gpioWaveDelete Deletes a waveform +.br + +.br +gpioWaveTxSend Transmits a waveform +.br + +.br +gpioWaveChain Transmits a chain of waveforms +.br + +.br +gpioWaveTxAt Returns the current transmitting waveform +.br + +.br +gpioWaveTxBusy Checks to see if the waveform has ended +.br + +.br +gpioWaveTxStop Aborts the current waveform +.br + +.br +gpioWaveGetCbs Length in CBs of the current waveform +.br +gpioWaveGetHighCbs Length of longest waveform so far +.br +gpioWaveGetMaxCbs Absolute maximum allowed CBs +.br + +.br +gpioWaveGetMicros Length in micros of the current waveform +.br +gpioWaveGetHighMicros Length of longest waveform so far +.br +gpioWaveGetMaxMicros Absolute maximum allowed micros +.br + +.br +gpioWaveGetPulses Length in pulses of the current waveform +.br +gpioWaveGetHighPulses Length of longest waveform so far +.br +gpioWaveGetMaxPulses Absolute maximum allowed pulses +.br +.SS UTILITIES +.br + +.br +gpioDelay Delay for a number of microseconds +.br + +.br +gpioTick Get current tick (microseconds) +.br + +.br +gpioHardwareRevision Get hardware revision +.br +gpioVersion Get the pigpio version +.br + +.br +getBitInBytes Get the value of a bit +.br +putBitInBytes Set the value of a bit +.br + +.br +gpioTime Get current time +.br +gpioSleep Sleep for specified time +.br + +.br +time_sleep Sleeps for a float number of seconds +.br +time_time Float number of seconds since the epoch +.br +.SS CONFIGURATION +.br + +.br +gpioCfgBufferSize Configure the GPIO sample buffer size +.br +gpioCfgClock Configure the GPIO sample rate +.br +gpioCfgDMAchannel Configure the DMA channel (DEPRECATED) +.br +gpioCfgDMAchannels Configure the DMA channels +.br +gpioCfgPermissions Configure the GPIO access permissions +.br +gpioCfgInterfaces Configure user interfaces +.br +gpioCfgSocketPort Configure socket port +.br +gpioCfgMemAlloc Configure DMA memory allocation mode +.br +gpioCfgNetAddr Configure allowed network addresses +.br + +.br +gpioCfgInternals Configure misc. internals (DEPRECATED) +.br +gpioCfgGetInternals Get internal configuration settings +.br +gpioCfgSetInternals Set internal configuration settings +.br +.SS EXPERT +.br + +.br +rawWaveAddSPI Not intended for general use +.br +rawWaveAddGeneric Not intended for general use +.br +rawWaveCB Not intended for general use +.br +rawWaveCBAdr Not intended for general use +.br +rawWaveGetOOL Not intended for general use +.br +rawWaveSetOOL Not intended for general use +.br +rawWaveGetOut Not intended for general use +.br +rawWaveSetOut Not intended for general use +.br +rawWaveGetIn Not intended for general use +.br +rawWaveSetIn Not intended for general use +.br +rawWaveInfo Not intended for general use +.br +rawDumpWave Not intended for general use +.br +rawDumpScript Not intended for general use .br .SH FUNCTIONS @@ -3628,9 +4157,27 @@ End .IP "\fBint bscXfer(bsc_xfer_t *bsc_xfer)\fP" .IP "" 4 -This function provides a low-level interface to the -SPI/I2C Slave peripheral. This peripheral allows the -Pi to act as a slave device on an I2C or SPI bus. +This function provides a low-level interface to the SPI/I2C Slave +peripheral on the BCM chip. + +.br + +.br +This peripheral allows the Pi to act as a hardware slave device +on an I2C or SPI bus. + +.br + +.br +This is not a bit bang version and as such is OS timing +independent. The bus timing is handled directly by the chip. + +.br + +.br +The output process is simple. You simply append data to the FIFO +buffer on the chip. This works like a queue, you add data to the +queue and the master removes it. .br @@ -3683,8 +4230,9 @@ typedef struct .br .br -To start a transfer set control (see below) and copy the bytes to -be sent (if any) to txBuf and set the byte count in txCnt. +To start a transfer set control (see below), copy the bytes to +be added to the transmit FIFO (if any) to txBuf and set txCnt to +the number of copied bytes. .br diff --git a/pigpio.h b/pigpio.h index 8139fa9..7d8df6a 100644 --- a/pigpio.h +++ b/pigpio.h @@ -30,7 +30,7 @@ For more information, please refer to #include #include -#define PIGPIO_VERSION 7102 +#define PIGPIO_VERSION 7103 /*TEXT @@ -72,8 +72,6 @@ The PWM and servo pulses are timed using the DMA and PWM peripherals. This use was inspired by Richard Hirst's servoblaster kernel module. -See [[https://github.com/richardghirst/PiBits/tree/master/ServoBlaster]] - *Usage* Include in your source files. @@ -117,7 +115,7 @@ ESSENTIAL gpioInitialise Initialise library gpioTerminate Stop library -BEGINNER +BASIC gpioSetMode Set a GPIO mode gpioGetMode Get a GPIO mode @@ -127,29 +125,29 @@ gpioSetPullUpDown Set/clear GPIO pull up/down resistor gpioRead Read a GPIO gpioWrite Write a GPIO +PWM_(overrides_servo_commands_on_same_GPIO) + gpioPWM Start/stop PWM pulses on a GPIO +gpioSetPWMfrequency Configure PWM frequency for a GPIO +gpioSetPWMrange Configure PWM range for a GPIO + gpioGetPWMdutycycle Get dutycycle setting on a GPIO +gpioGetPWMfrequency Get configured PWM frequency for a GPIO +gpioGetPWMrange Get configured PWM range for a GPIO + +gpioGetPWMrealRange Get underlying PWM range for a GPIO + +Servo_(overrides_PWM_commands_on_same_GPIO) gpioServo Start/stop servo pulses on a GPIO + gpioGetServoPulsewidth Get pulsewidth setting on a GPIO -gpioDelay Delay for a number of microseconds - -gpioSetAlertFunc Request a GPIO level change callback - -gpioSetTimerFunc Request a regular timed callback - INTERMEDIATE -gpioTrigger Send a trigger pulse to a GPIO. +gpioTrigger Send a trigger pulse to a GPIO -gpioSetWatchdog Set a watchdog on a GPIO. - -gpioSetPWMrange Configure PWM range for a GPIO -gpioGetPWMrange Get configured PWM range for a GPIO - -gpioSetPWMfrequency Configure PWM frequency for a GPIO -gpioGetPWMfrequency Get configured PWM frequency for a GPIO +gpioSetWatchdog Set a watchdog on a GPIO gpioRead_Bits_0_31 Read all GPIO in bank 1 gpioRead_Bits_32_53 Read all GPIO in bank 2 @@ -160,14 +158,34 @@ gpioWrite_Bits_32_53_Clear Clear selected GPIO in bank 2 gpioWrite_Bits_0_31_Set Set selected GPIO in bank 1 gpioWrite_Bits_32_53_Set Set selected GPIO in bank 2 +gpioSetAlertFunc Request a GPIO level change callback +gpioSetAlertFuncEx Request a GPIO change callback, extended + +gpioSetTimerFunc Request a regular timed callback +gpioSetTimerFuncEx Request a regular timed callback, extended + gpioStartThread Start a new thread gpioStopThread Stop a previously started thread ADVANCED -gpioGetPWMrealRange Get underlying PWM range for a GPIO +gpioNotifyOpen Request a notification handle +gpioNotifyClose Close a notification +gpioNotifyOpenWithSize Request a notification with sized pipe +gpioNotifyBegin Start notifications for selected GPIO +gpioNotifyPause Pause notifications -gpioSetAlertFuncEx Request a GPIO change callback, extended +gpioHardwareClock Start hardware clock on supported GPIO + +gpioHardwarePWM Start hardware PWM on supported GPIO + +gpioGlitchFilter Set a glitch filter on a GPIO +gpioNoiseFilter Set a noise filter on a GPIO + +gpioSetPad Sets a pads drive strength +gpioGetPad Gets a pads drive strength + +shell Executes a shell command gpioSetISRFunc Request a GPIO interrupt callback gpioSetISRFuncEx Request a GPIO interrupt callback, extended @@ -178,31 +196,20 @@ gpioSetSignalFuncEx Request a signal callback, extended gpioSetGetSamplesFunc Requests a GPIO samples callback gpioSetGetSamplesFuncEx Requests a GPIO samples callback, extended -gpioSetTimerFuncEx Request a regular timed callback, extended +Custom -gpioNotifyOpen Request a notification handle -gpioNotifyOpenWithSize Request a notification handle with sized pipe -gpioNotifyBegin Start notifications for selected GPIO -gpioNotifyPause Pause notifications -gpioNotifyClose Close a notification +gpioCustom1 User custom function 1 +gpioCustom2 User custom function 2 -gpioSerialReadOpen Opens a GPIO for bit bang serial reads -gpioSerialReadInvert Configures normal/inverted for serial reads -gpioSerialRead Reads bit bang serial data from a GPIO -gpioSerialReadClose Closes a GPIO for bit bang serial reads +Events -gpioHardwareClock Start hardware clock on supported GPIO -gpioHardwarePWM Start hardware PWM on supported GPIO +eventMonitor Sets the events to monitor +eventSetFunc Request an event callback +eventSetFuncEx Request an event callback, extended -gpioGlitchFilter Set a glitch filter on a GPIO -gpioNoiseFilter Set a noise filter on a GPIO +eventTrigger Trigger an event -gpioGetPad Gets a pads drive strength -gpioSetPad Sets a pads drive strength - -shell Executes a shell command - -SCRIPTS +Scripts gpioStoreScript Store a script gpioRunScript Run a stored script @@ -211,6 +218,101 @@ gpioScriptStatus Get script status and parameters gpioStopScript Stop a running script gpioDeleteScript Delete a stored script +I2C + +i2cOpen Opens an I2C device +i2cClose Closes an I2C device + +i2cWriteQuick SMBus write quick + +i2cReadByte SMBus read byte +i2cWriteByte SMBus write byte + +i2cReadByteData SMBus read byte data +i2cWriteByteData SMBus write byte data + +i2cReadWordData SMBus read word data +i2cWriteWordData SMBus write word data + +i2cReadBlockData SMBus read block data +i2cWriteBlockData SMBus write block data + +i2cReadI2CBlockData SMBus read I2C block data +i2cWriteI2CBlockData SMBus write I2C block data + +i2cReadDevice Reads the raw I2C device +i2cWriteDevice Writes the raw I2C device + +i2cProcessCall SMBus process call +i2cBlockProcessCall SMBus block process call + +i2cSwitchCombined Sets or clears the combined flag + +i2cSegments Performs multiple I2C transactions + +i2cZip Performs multiple I2C transactions + +I2C_BIT_BANG + +bbI2COpen Opens GPIO for bit banging I2C +bbI2CClose Closes GPIO for bit banging I2C + +bbI2CZip Performs bit banged I2C transactions + +I2C/SPI_SLAVE + +bscXfer I2C/SPI as slave transfer + +SERIAL + +serOpen Opens a serial device +serClose Closes a serial device + +serReadByte Reads a byte from a serial device +serWriteByte Writes a byte to a serial device + +serRead Reads bytes from a serial device +serWrite Writes bytes to a serial device + +serDataAvailable Returns number of bytes ready to be read + +SERIAL_BIT_BANG_(read_only) + +gpioSerialReadOpen Opens a GPIO for bit bang serial reads +gpioSerialReadClose Closes a GPIO for bit bang serial reads + +gpioSerialReadInvert Configures normal/inverted for serial reads + +gpioSerialRead Reads bit bang serial data from a GPIO + +SPI + +spiOpen Opens a SPI device +spiClose Closes a SPI device + +spiRead Reads bytes from a SPI device +spiWrite Writes bytes to a SPI device +spiXfer Transfers bytes with a SPI device + +SPI_BIT_BANG + +bbSPIOpen Opens GPIO for bit banging SPI +bbSPIClose Closes GPIO for bit banging SPI + +bbSPIXfer Performs bit banged SPI transactions + +FILES + +fileOpen Opens a file +fileClose Closes a file + +fileRead Reads bytes from a file +fileWrite Writes bytes to a file + +fileSeek Seeks to a position within a file + +fileList List files which match a pattern + WAVES gpioWaveClear Deletes all waveforms @@ -229,9 +331,14 @@ gpioWaveChain Transmits a chain of waveforms gpioWaveTxAt Returns the current transmitting waveform gpioWaveTxBusy Checks to see if the waveform has ended + gpioWaveTxStop Aborts the current waveform -gpioWaveGetMicros Length in microseconds of the current waveform +gpioWaveGetCbs Length in CBs of the current waveform +gpioWaveGetHighCbs Length of longest waveform so far +gpioWaveGetMaxCbs Absolute maximum allowed CBs + +gpioWaveGetMicros Length in micros of the current waveform gpioWaveGetHighMicros Length of longest waveform so far gpioWaveGetMaxMicros Absolute maximum allowed micros @@ -239,111 +346,10 @@ gpioWaveGetPulses Length in pulses of the current waveform gpioWaveGetHighPulses Length of longest waveform so far gpioWaveGetMaxPulses Absolute maximum allowed pulses -gpioWaveGetCbs Length in control blocks of the current waveform -gpioWaveGetHighCbs Length of longest waveform so far -gpioWaveGetMaxCbs Absolute maximum allowed control blocks - -I2C - -i2cOpen Opens an I2C device -i2cClose Closes an I2C device - -i2cWriteQuick SMBus write quick -i2cWriteByte SMBus write byte -i2cReadByte SMBus read byte -i2cWriteByteData SMBus write byte data -i2cWriteWordData SMBus write word data -i2cReadByteData SMBus read byte data -i2cReadWordData SMBus read word data -i2cProcessCall SMBus process call -i2cWriteBlockData SMBus write block data -i2cReadBlockData SMBus read block data -i2cBlockProcessCall SMBus block process call - -i2cWriteI2CBlockData SMBus write I2C block data -i2cReadI2CBlockData SMBus read I2C block data - -i2cReadDevice Reads the raw I2C device -i2cWriteDevice Writes the raw I2C device - -i2cSwitchCombined Sets or clears the combined flag - -i2cSegments Performs multiple I2C transactions - -i2cZip Performs multiple I2C transactions - -bbI2COpen Opens GPIO for bit banging I2C -bbI2CClose Closes GPIO for bit banging I2C -bbI2CZip Performs multiple bit banged I2C transactions - -SPI - -spiOpen Opens a SPI device -spiClose Closes a SPI device - -spiRead Reads bytes from a SPI device -spiWrite Writes bytes to a SPI device -spiXfer Transfers bytes with a SPI device - -bbSPIOpen Opens GPIO for bit banging SPI -bbSPIClose Closes GPIO for bit banging SPI -bbSPIXfer Performs multiple bit banged SPI transactions - -I2C/SPI_SLAVE - -bscXfer I2C/SPI as slave transfer - -SERIAL - -serOpen Opens a serial device -serClose Closes a serial device - -serReadByte Reads a byte from a serial device -serWriteByte Writes a byte to a serial device -serRead Reads bytes from a serial device -serWrite Writes bytes to a serial device - -serDataAvailable Returns number of bytes ready to be read - -FILES - -fileOpen Opens a file -fileClose Closes a file -fileRead Reads bytes from a file -fileWrite Writes bytes to a file -fileSeek Seeks to a position within a file -fileList List files which match a pattern - -EVENTS - -eventMonitor Sets the events to monitor -eventSetFunc Request an event callback -eventSetFuncEx Request an event callback, extended -eventTrigger Trigger an event - -CONFIGURATION - -gpioCfgBufferSize Configure the GPIO sample buffer size -gpioCfgClock Configure the GPIO sample rate -gpioCfgDMAchannel Configure the DMA channel (DEPRECATED) -gpioCfgDMAchannels Configure the DMA channels -gpioCfgPermissions Configure the GPIO access permissions -gpioCfgInterfaces Configure user interfaces -gpioCfgSocketPort Configure socket port -gpioCfgMemAlloc Configure DMA memory allocation mode -gpioCfgNetAddr Configure allowed network addresses - -gpioCfgInternals Configure miscellaneous internals (DEPRECATED) -gpioCfgGetInternals Get internal configuration settings -gpioCfgSetInternals Set internal configuration settings - -CUSTOM - -gpioCustom1 User custom function 1 -gpioCustom2 User custom function 2 - UTILITIES +gpioDelay Delay for a number of microseconds + gpioTick Get current tick (microseconds) gpioHardwareRevision Get hardware revision @@ -358,6 +364,22 @@ gpioSleep Sleep for specified time time_sleep Sleeps for a float number of seconds time_time Float number of seconds since the epoch +CONFIGURATION + +gpioCfgBufferSize Configure the GPIO sample buffer size +gpioCfgClock Configure the GPIO sample rate +gpioCfgDMAchannel Configure the DMA channel (DEPRECATED) +gpioCfgDMAchannels Configure the DMA channels +gpioCfgPermissions Configure the GPIO access permissions +gpioCfgInterfaces Configure user interfaces +gpioCfgSocketPort Configure socket port +gpioCfgMemAlloc Configure DMA memory allocation mode +gpioCfgNetAddr Configure allowed network addresses + +gpioCfgInternals Configure misc. internals (DEPRECATED) +gpioCfgGetInternals Get internal configuration settings +gpioCfgSetInternals Set internal configuration settings + EXPERT rawWaveAddSPI Not intended for general use @@ -2878,9 +2900,18 @@ D*/ /*F*/ int bscXfer(bsc_xfer_t *bsc_xfer); /*D -This function provides a low-level interface to the -SPI/I2C Slave peripheral. This peripheral allows the -Pi to act as a slave device on an I2C or SPI bus. +This function provides a low-level interface to the SPI/I2C Slave +peripheral on the BCM chip. + +This peripheral allows the Pi to act as a hardware slave device +on an I2C or SPI bus. + +This is not a bit bang version and as such is OS timing +independent. The bus timing is handled directly by the chip. + +The output process is simple. You simply append data to the FIFO +buffer on the chip. This works like a queue, you add data to the +queue and the master removes it. This function is not available on the BCM2711 (e.g. as used in the Pi4B). @@ -2906,8 +2937,9 @@ typedef struct } bsc_xfer_t; . . -To start a transfer set control (see below) and copy the bytes to -be sent (if any) to txBuf and set the byte count in txCnt. +To start a transfer set control (see below), copy the bytes to +be added to the transmit FIFO (if any) to txBuf and set txCnt to +the number of copied bytes. Upon return rxCnt will be set to the number of received bytes placed in rxBuf. diff --git a/pigpio.py b/pigpio.py index 4da6171..0e2a0a1 100644 --- a/pigpio.py +++ b/pigpio.py @@ -95,41 +95,45 @@ the pigpio.pi class. OVERVIEW -Essential +ESSENTIAL pigpio.pi Initialise Pi connection stop Stop a Pi connection -Beginner +BASIC set_mode Set a GPIO mode get_mode Get a GPIO mode + set_pull_up_down Set/clear GPIO pull up/down resistor read Read a GPIO write Write a GPIO +PWM_(overrides_servo_commands_on_same_GPIO) + set_PWM_dutycycle Start/stop PWM pulses on a GPIO +set_PWM_frequency Set PWM frequency of a GPIO +set_PWM_range Configure PWM range of a GPIO + get_PWM_dutycycle Get PWM dutycycle set on a GPIO +get_PWM_frequency Get PWM frequency of a GPIO +get_PWM_range Get configured PWM range of a GPIO + +get_PWM_real_range Get underlying PWM range for a GPIO + +Servo_(overrides_PWM_commands_on_same_GPIO) set_servo_pulsewidth Start/Stop servo pulses on a GPIO + get_servo_pulsewidth Get servo pulsewidth set on a GPIO -callback Create GPIO level change callback -wait_for_edge Wait for GPIO level change - -Intermediate +INTERMEDIATE gpio_trigger Send a trigger pulse to a GPIO set_watchdog Set a watchdog on a GPIO -set_PWM_range Configure PWM range of a GPIO -get_PWM_range Get configured PWM range of a GPIO - -set_PWM_frequency Set PWM frequency of a GPIO -get_PWM_frequency Get PWM frequency of a GPIO - read_bank_1 Read all bank 1 GPIO read_bank_2 Read all bank 2 GPIO @@ -139,31 +143,42 @@ clear_bank_2 Clear selected GPIO in bank 2 set_bank_1 Set selected GPIO in bank 1 set_bank_2 Set selected GPIO in bank 2 -Advanced +callback Create GPIO level change callback -get_PWM_real_range Get underlying PWM range for a GPIO +wait_for_edge Wait for GPIO level change + +ADVANCED notify_open Request a notification handle notify_begin Start notifications for selected GPIO notify_pause Pause notifications notify_close Close a notification -bb_serial_read_open Open a GPIO for bit bang serial reads -bb_serial_read Read bit bang serial data from a GPIO -bb_serial_read_close Close a GPIO for bit bang serial reads -bb_serial_invert Invert serial logic (1 invert, 0 normal) - hardware_clock Start hardware clock on supported GPIO + hardware_PWM Start hardware PWM on supported GPIO set_glitch_filter Set a glitch filter on a GPIO set_noise_filter Set a noise filter on a GPIO -get_pad_strength Gets a pads drive strength set_pad_strength Sets a pads drive strength +get_pad_strength Gets a pads drive strength shell Executes a shell command +Custom + +custom_1 User custom function 1 +custom_2 User custom function 2 + +Events + +event_callback Sets a callback for an event + +event_trigger Triggers an event + +wait_for_event Wait for an event + Scripts store_script Store a script @@ -173,7 +188,98 @@ script_status Get script status and parameters stop_script Stop a running script delete_script Delete a stored script -Waves +I2C + +i2c_open Opens an I2C device +i2c_close Closes an I2C device + +i2c_write_quick SMBus write quick + +i2c_read_byte SMBus read byte +i2c_write_byte SMBus write byte + +i2c_read_byte_data SMBus read byte data +i2c_write_byte_data SMBus write byte data + +i2c_read_word_data SMBus read word data +i2c_write_word_data SMBus write word data + +i2c_read_block_data SMBus read block data +i2c_write_block_data SMBus write block data + +i2c_read_i2c_block_data SMBus read I2C block data +i2c_write_i2c_block_data SMBus write I2C block data + +i2c_read_device Reads the raw I2C device +i2c_write_device Writes the raw I2C device + +i2c_process_call SMBus process call +i2c_block_process_call SMBus block process call + +i2c_zip Performs multiple I2C transactions + +I2C_BIT_BANG + +bb_i2c_open Opens GPIO for bit banging I2C +bb_i2c_close Closes GPIO for bit banging I2C + +bb_i2c_zip Performs multiple bit banged I2C transactions + +I2C/SPI_SLAVE + +bsc_xfer I2C/SPI as slave transfer +bsc_i2c I2C as slave transfer + +SERIAL + +serial_open Opens a serial device +serial_close Closes a serial device + +serial_read_byte Reads a byte from a serial device +serial_write_byte Writes a byte to a serial device + +serial_read Reads bytes from a serial device +serial_write Writes bytes to a serial device + +serial_data_available Returns number of bytes ready to be read + +SERIAL_BIT_BANG_(read_only) + +bb_serial_read_open Open a GPIO for bit bang serial reads +bb_serial_read_close Close a GPIO for bit bang serial reads + +bb_serial_invert Invert serial logic (1 invert, 0 normal) + +bb_serial_read Read bit bang serial data from a GPIO + +SPI + +spi_open Opens a SPI device +spi_close Closes a SPI device + +spi_read Reads bytes from a SPI device +spi_write Writes bytes to a SPI device +spi_xfer Transfers bytes with a SPI device + +SPI_BIT_BANG + +bb_spi_open Opens GPIO for bit banging SPI +bb_spi_close Closes GPIO for bit banging SPI +bb_spi_xfer Transfers bytes with bit banging SPI + +FILES + +file_open Opens a file +file_close Closes a file + +file_read Reads bytes from a file +file_write Writes bytes to a file + +file_seek Seeks to a position within a file + +file_list List files which match a pattern + +WAVES wave_clear Deletes all waveforms @@ -191,97 +297,21 @@ wave_send_using_mode Transmits a waveform in the chosen mode wave_chain Transmits a chain of waveforms wave_tx_at Returns the current transmitting waveform + wave_tx_busy Checks to see if a waveform has ended + wave_tx_stop Aborts the current waveform -wave_get_micros Length in microseconds of the current waveform -wave_get_max_micros Absolute maximum allowed micros -wave_get_pulses Length in pulses of the current waveform -wave_get_max_pulses Absolute maximum allowed pulses wave_get_cbs Length in cbs of the current waveform wave_get_max_cbs Absolute maximum allowed cbs -I2C +wave_get_micros Length in microseconds of the current waveform +wave_get_max_micros Absolute maximum allowed micros -i2c_open Opens an I2C device -i2c_close Closes an I2C device +wave_get_pulses Length in pulses of the current waveform +wave_get_max_pulses Absolute maximum allowed pulses -i2c_write_quick SMBus write quick -i2c_write_byte SMBus write byte -i2c_read_byte SMBus read byte -i2c_write_byte_data SMBus write byte data -i2c_write_word_data SMBus write word data -i2c_read_byte_data SMBus read byte data -i2c_read_word_data SMBus read word data -i2c_process_call SMBus process call -i2c_write_block_data SMBus write block data -i2c_read_block_data SMBus read block data -i2c_block_process_call SMBus block process call - -i2c_read_i2c_block_data SMBus read I2C block data -i2c_write_i2c_block_data SMBus write I2C block data - -i2c_read_device Reads the raw I2C device -i2c_write_device Writes the raw I2C device - -i2c_zip Performs multiple I2C transactions - -bb_i2c_open Opens GPIO for bit banging I2C -bb_i2c_close Closes GPIO for bit banging I2C -bb_i2c_zip Performs multiple bit banged I2C transactions - -SPI - -spi_open Opens a SPI device -spi_close Closes a SPI device - -spi_read Reads bytes from a SPI device -spi_write Writes bytes to a SPI device -spi_xfer Transfers bytes with a SPI device - -bb_spi_open Opens GPIO for bit banging SPI -bb_spi_close Closes GPIO for bit banging SPI -bb_spi_xfer Transfers bytes with bit banging SPI - -I2C/SPI_Slave - -bsc_xfer I2C/SPI as slave transfer -bsc_i2c I2C as slave transfer - -Serial - -serial_open Opens a serial device -serial_close Closes a serial device - -serial_read Reads bytes from a serial device -serial_read_byte Reads a byte from a serial device - -serial_write Writes bytes to a serial device -serial_write_byte Writes a byte to a serial device - -serial_data_available Returns number of bytes ready to be read - -Files - -file_open Opens a file -file_close Closes a file -file_read Reads bytes from a file -file_write Writes bytes to a file -file_seek Seeks to a position within a file -file_list List files which match a pattern - -Events - -event_callback Sets a callback for an event -event_trigger Triggers an event -wait_for_event Wait for an event - -Custom - -custom_1 User custom function 1 -custom_2 User custom function 2 - -Utility +UTILITIES get_current_tick Get current tick (microseconds) @@ -300,7 +330,7 @@ import threading import os import atexit -VERSION = "1.44" +VERSION = "1.45" exceptions = True @@ -3514,9 +3544,18 @@ class pi(): def bsc_xfer(self, bsc_control, data): """ - This function provides a low-level interface to the - SPI/I2C Slave peripheral. This peripheral allows the - Pi to act as a slave device on an I2C or SPI bus. + This function provides a low-level interface to the SPI/I2C Slave + peripheral on the BCM chip. + + This peripheral allows the Pi to act as a hardware slave device + on an I2C or SPI bus. + + This is not a bit bang version and as such is OS timing + independent. The bus timing is handled directly by the chip. + + The output process is simple. You simply append data to the FIFO + buffer on the chip. This works like a queue, you add data to the + queue and the master removes it. This function is not available on the BCM2711 (e.g. as used in the Pi4B). diff --git a/pigpiod.1 b/pigpiod.1 index 1f7d3d1..f4a873c 100644 --- a/pigpiod.1 +++ b/pigpiod.1 @@ -2,7 +2,7 @@ ." Process this file with ." groff -man -Tascii pigpiod.1 ." -.TH pigpiod 1 2012-2018 Linux "pigpio archive" +.TH pigpiod 1 2012-2019 Linux "pigpio archive" .SH NAME pigpiod - A utility to start the pigpio library as a daemon. diff --git a/pigpiod_if.3 b/pigpiod_if.3 index c079c78..272113a 100644 --- a/pigpiod_if.3 +++ b/pigpiod_if.3 @@ -2,7 +2,7 @@ ." Process this file with ." groff -man -Tascii pigpiod_if.3 ." -.TH pigpiod_if 3 2012-2018 Linux "pigpio archive" +.TH pigpiod_if 3 2012-2019 Linux "pigpio archive" .SH NAME pigpiod_if - A C library to interface to the pigpio daemon. @@ -175,6 +175,342 @@ All the functions which return an int return < 0 on error .br +.br + +.SH OVERVIEW + +.br +.SS ESSENTIAL +.br + +.br +pigpio_start Connects to the pigpio daemon +.br +pigpio_stop Disconnects from the pigpio daemon +.br +.SS BEGINNER +.br + +.br +set_mode Set a GPIO mode +.br +get_mode Get a GPIO mode +.br + +.br +set_pull_up_down Set/clear GPIO pull up/down resistor +.br + +.br +gpio_read Read a GPIO +.br +gpio_write Write a GPIO +.br + +.br +set_PWM_dutycycle Start/stop PWM pulses on a GPIO +.br +get_PWM_dutycycle Get the PWM dutycycle in use on a GPIO +.br + +.br +set_servo_pulsewidth Start/stop servo pulses on a GPIO +.br +get_servo_pulsewidth Get the servo pulsewidth in use on a GPIO +.br + +.br +callback Create GPIO level change callback +.br +callback_ex Create GPIO level change callback +.br +callback_cancel Cancel a callback +.br +wait_for_edge Wait for GPIO level change +.br +.SS INTERMEDIATE +.br + +.br +gpio_trigger Send a trigger pulse to a GPIO. +.br + +.br +set_watchdog Set a watchdog on a GPIO. +.br + +.br +set_PWM_range Configure PWM range for a GPIO +.br +get_PWM_range Get configured PWM range for a GPIO +.br + +.br +set_PWM_frequency Configure PWM frequency for a GPIO +.br +get_PWM_frequency Get configured PWM frequency for a GPIO +.br + +.br +read_bank_1 Read all GPIO in bank 1 +.br +read_bank_2 Read all GPIO in bank 2 +.br + +.br +clear_bank_1 Clear selected GPIO in bank 1 +.br +clear_bank_2 Clear selected GPIO in bank 2 +.br + +.br +set_bank_1 Set selected GPIO in bank 1 +.br +set_bank_2 Set selected GPIO in bank 2 +.br + +.br +start_thread Start a new thread +.br +stop_thread Stop a previously started thread +.br +.SS ADVANCED +.br + +.br +get_PWM_real_range Get underlying PWM range for a GPIO +.br + +.br +notify_open Request a notification handle +.br +notify_begin Start notifications for selected GPIO +.br +notify_pause Pause notifications +.br +notify_close Close a notification +.br + +.br +bb_serial_read_open Opens a GPIO for bit bang serial reads +.br +bb_serial_read Reads bit bang serial data from a GPIO +.br +bb_serial_read_close Closes a GPIO for bit bang serial reads +.br +bb_serial_invert Invert serial logic (1 invert, 0 normal) +.br + +.br +hardware_clock Start hardware clock on supported GPIO +.br +hardware_PWM Start hardware PWM on supported GPIO +.br + +.br +set_glitch_filter Set a glitch filter on a GPIO +.br +set_noise_filter Set a noise filter on a GPIO +.br +.SS SCRIPTS +.br + +.br +store_script Store a script +.br +run_script Run a stored script +.br +script_status Get script status and parameters +.br +stop_script Stop a running script +.br +delete_script Delete a stored script +.br +.SS WAVES +.br + +.br +wave_clear Deletes all waveforms +.br + +.br +wave_add_new Starts a new waveform +.br +wave_add_generic Adds a series of pulses to the waveform +.br +wave_add_serial Adds serial data to the waveform +.br + +.br +wave_create Creates a waveform from added data +.br +wave_delete Deletes one or more waveforms +.br + +.br +wave_send_once Transmits a waveform once +.br +wave_send_repeat Transmits a waveform repeatedly +.br + +.br +wave_chain Transmits a chain of waveforms +.br + +.br +wave_tx_busy Checks to see if the waveform has ended +.br +wave_tx_stop Aborts the current waveform +.br + +.br +wave_get_micros Length in microseconds of the current waveform +.br +wave_get_high_micros Length of longest waveform so far +.br +wave_get_max_micros Absolute maximum allowed micros +.br + +.br +wave_get_pulses Length in pulses of the current waveform +.br +wave_get_high_pulses Length of longest waveform so far +.br +wave_get_max_pulses Absolute maximum allowed pulses +.br + +.br +wave_get_cbs Length in cbs of the current waveform +.br +wave_get_high_cbs Length of longest waveform so far +.br +wave_get_max_cbs Absolute maximum allowed cbs +.br +.SS I2C +.br + +.br +i2c_open Opens an I2C device +.br +i2c_close Closes an I2C device +.br + +.br +i2c_write_quick smbus write quick +.br +i2c_write_byte smbus write byte +.br +i2c_read_byte smbus read byte +.br +i2c_write_byte_data smbus write byte data +.br +i2c_write_word_data smbus write word data +.br +i2c_read_byte_data smbus read byte data +.br +i2c_read_word_data smbus read word data +.br +i2c_process_call smbus process call +.br +i2c_write_block_data smbus write block data +.br +i2c_read_block_data smbus read block data +.br +i2c_block_process_call smbus block process call +.br + +.br +i2c_write_i2c_block_data smbus write I2C block data +.br +i2c_read_i2c_block_data smbus read I2C block data +.br + +.br +i2c_read_device Reads the raw I2C device +.br +i2c_write_device Writes the raw I2C device +.br + +.br +i2c_zip Performs multiple I2C transactions +.br + +.br +bb_i2c_open Opens GPIO for bit banging I2C +.br +bb_i2c_close Closes GPIO for bit banging I2C +.br +bb_i2c_zip Performs multiple bit banged I2C transactions +.br +.SS SPI +.br + +.br +spi_open Opens a SPI device +.br +spi_close Closes a SPI device +.br + +.br +spi_read Reads bytes from a SPI device +.br +spi_write Writes bytes to a SPI device +.br +spi_xfer Transfers bytes with a SPI device +.br +.SS SERIAL +.br + +.br +serial_open Opens a serial device +.br +serial_close Closes a serial device +.br + +.br +serial_write_byte Writes a byte to a serial device +.br +serial_read_byte Reads a byte from a serial device +.br +serial_write Writes bytes to a serial device +.br +serial_read Reads bytes from a serial device +.br + +.br +serial_data_available Returns number of bytes ready to be read +.br +.SS CUSTOM +.br + +.br +custom_1 User custom function 1 +.br +custom_2 User custom function 2 +.br +.SS UTILITIES +.br + +.br +get_current_tick Get current tick (microseconds) +.br + +.br +get_hardware_revision Get hardware revision +.br +get_pigpio_version Get the pigpio version +.br +pigpiod_if_version Get the pigpiod_if version +.br + +.br +pigpio_error Get a text description of an error code. +.br + +.br +time_sleep Sleeps for a float number of seconds +.br +time_time Float number of seconds since the epoch .br .SH FUNCTIONS diff --git a/pigpiod_if2.3 b/pigpiod_if2.3 index 2354d88..6b52a7d 100644 --- a/pigpiod_if2.3 +++ b/pigpiod_if2.3 @@ -2,7 +2,7 @@ ." Process this file with ." groff -man -Tascii pigpiod_if2.3 ." -.TH pigpiod_if2 3 2012-2018 Linux "pigpio archive" +.TH pigpiod_if2 3 2012-2019 Linux "pigpio archive" .SH NAME pigpiod_if2 - A C library to interface to the pigpio daemon. @@ -169,6 +169,456 @@ All the functions which return an int return < 0 on error .br +.br + +.SH OVERVIEW + +.br +.SS ESSENTIAL +.br + +.br +pigpio_start Connects to a pigpio daemon +.br +pigpio_stop Disconnects from a pigpio daemon +.br +.SS BASIC +.br + +.br +set_mode Set a GPIO mode +.br +get_mode Get a GPIO mode +.br + +.br +set_pull_up_down Set/clear GPIO pull up/down resistor +.br + +.br +gpio_read Read a GPIO +.br +gpio_write Write a GPIO +.br +.SS PWM (overrides servo commands on same GPIO) +.br + +.br +set_PWM_dutycycle Start/stop PWM pulses on a GPIO +.br +set_PWM_frequency Configure PWM frequency for a GPIO +.br +set_PWM_range Configure PWM range for a GPIO +.br + +.br +get_PWM_dutycycle Get the PWM dutycycle in use on a GPIO +.br +get_PWM_frequency Get configured PWM frequency for a GPIO +.br +get_PWM_range Get configured PWM range for a GPIO +.br + +.br +get_PWM_real_range Get underlying PWM range for a GPIO +.br +.SS Servo (overrides PWM commands on same GPIO) +.br + +.br +set_servo_pulsewidth Start/stop servo pulses on a GPIO +.br + +.br +get_servo_pulsewidth Get the servo pulsewidth in use on a GPIO +.br +.SS INTERMEDIATE +.br + +.br +gpio_trigger Send a trigger pulse to a GPIO. +.br + +.br +set_watchdog Set a watchdog on a GPIO. +.br + +.br +read_bank_1 Read all GPIO in bank 1 +.br +read_bank_2 Read all GPIO in bank 2 +.br + +.br +clear_bank_1 Clear selected GPIO in bank 1 +.br +clear_bank_2 Clear selected GPIO in bank 2 +.br + +.br +set_bank_1 Set selected GPIO in bank 1 +.br +set_bank_2 Set selected GPIO in bank 2 +.br + +.br +callback Create GPIO level change callback +.br +callback_ex Create GPIO level change callback, extended +.br + +.br +callback_cancel Cancel a callback +.br + +.br +wait_for_edge Wait for GPIO level change +.br + +.br +start_thread Start a new thread +.br +stop_thread Stop a previously started thread +.br +.SS ADVANCED +.br + +.br +notify_open Request a notification handle +.br +notify_begin Start notifications for selected GPIO +.br +notify_pause Pause notifications +.br +notify_close Close a notification +.br + +.br +hardware_clock Start hardware clock on supported GPIO +.br + +.br +hardware_PWM Start hardware PWM on supported GPIO +.br + +.br +set_glitch_filter Set a glitch filter on a GPIO +.br +set_noise_filter Set a noise filter on a GPIO +.br + +.br +set_pad_strength Sets a pads drive strength +.br +get_pad_strength Gets a pads drive strength +.br + +.br +shell_ Executes a shell command +.br +.SS Custom +.br + +.br +custom_1 User custom function 1 +.br +custom_2 User custom function 2 +.br +.SS Events +.br + +.br +event_callback Sets a callback for an event +.br +event_callback_ex Sets a callback for an event, extended +.br + +.br +event_callback_cancel Cancel an event callback +.br + +.br +event_trigger Triggers an event +.br + +.br +wait_for_event Wait for an event +.br +.SS Scripts +.br + +.br +store_script Store a script +.br +run_script Run a stored script +.br +update_script Set a scripts parameters +.br +script_status Get script status and parameters +.br +stop_script Stop a running script +.br +delete_script Delete a stored script +.br +.SS I2C +.br + +.br +i2c_open Opens an I2C device +.br +i2c_close Closes an I2C device +.br + +.br +i2c_write_quick smbus write quick +.br + +.br +i2c_read_byte smbus read byte +.br +i2c_write_byte smbus write byte +.br + +.br +i2c_read_byte_data smbus read byte data +.br +i2c_write_byte_data smbus write byte data +.br + +.br +i2c_read_word_data smbus read word data +.br +i2c_write_word_data smbus write word data +.br + +.br +i2c_read_block_data smbus read block data +.br +i2c_write_block_data smbus write block data +.br + +.br +i2c_read_i2c_block_data smbus read I2C block data +.br +i2c_write_i2c_block_data smbus write I2C block data +.br + +.br +i2c_read_device Reads the raw I2C device +.br +i2c_write_device Writes the raw I2C device +.br + +.br +i2c_process_call smbus process call +.br +i2c_block_process_call smbus block process call +.br + +.br +i2c_zip Performs multiple I2C transactions +.br +.SS I2C BIT BANG +.br + +.br +bb_i2c_open Opens GPIO for bit banging I2C +.br +bb_i2c_close Closes GPIO for bit banging I2C +.br + +.br +bb_i2c_zip Performs bit banged I2C transactions +.br +.SS I2C/SPI SLAVE +.br + +.br +bsc_xfer I2C/SPI as slave transfer +.br +bsc_i2c I2C as slave transfer +.br +.SS SERIAL +.br + +.br +serial_open Opens a serial device +.br +serial_close Closes a serial device +.br + +.br +serial_read_byte Reads a byte from a serial device +.br +serial_write_byte Writes a byte to a serial device +.br + +.br +serial_read Reads bytes from a serial device +.br +serial_write Writes bytes to a serial device +.br + +.br +serial_data_available Returns number of bytes ready to be read +.br +.SS SERIAL BIT BANG (read only) +.br + +.br +bb_serial_read_open Opens a GPIO for bit bang serial reads +.br +bb_serial_read_close Closes a GPIO for bit bang serial reads +.br + +.br +bb_serial_invert Invert serial logic (1 invert, 0 normal) +.br + +.br +bb_serial_read Reads bit bang serial data from a GPIO +.br +.SS SPI +.br + +.br +spi_open Opens a SPI device +.br +spi_close Closes a SPI device +.br + +.br +spi_read Reads bytes from a SPI device +.br +spi_write Writes bytes to a SPI device +.br +spi_xfer Transfers bytes with a SPI device +.br +.SS SPI BIT BANG +.br + +.br +bb_spi_open Opens GPIO for bit banging SPI +.br +bb_spi_close Closes GPIO for bit banging SPI +.br + +.br +bb_spi_xfer Transfers bytes with bit banging SPI +.br +.SS FILES +.br + +.br +file_open Opens a file +.br +file_close Closes a file +.br + +.br +file_read Reads bytes from a file +.br +file_write Writes bytes to a file +.br + +.br +file_seek Seeks to a position within a file +.br + +.br +file_list List files which match a pattern +.br +.SS WAVES +.br + +.br +wave_clear Deletes all waveforms +.br + +.br +wave_add_new Starts a new waveform +.br +wave_add_generic Adds a series of pulses to the waveform +.br +wave_add_serial Adds serial data to the waveform +.br + +.br +wave_create Creates a waveform from added data +.br +wave_delete Deletes one or more waveforms +.br + +.br +wave_send_once Transmits a waveform once +.br +wave_send_repeat Transmits a waveform repeatedly +.br +wave_send_using_mode Transmits a waveform in the chosen mode +.br + +.br +wave_chain Transmits a chain of waveforms +.br + +.br +wave_tx_at Returns the current transmitting waveform +.br + +.br +wave_tx_busy Checks to see if the waveform has ended +.br + +.br +wave_tx_stop Aborts the current waveform +.br + +.br +wave_get_cbs Length in cbs of the current waveform +.br +wave_get_high_cbs Length of longest waveform so far +.br +wave_get_max_cbs Absolute maximum allowed cbs +.br + +.br +wave_get_micros Length in micros of the current waveform +.br +wave_get_high_micros Length of longest waveform so far +.br +wave_get_max_micros Absolute maximum allowed micros +.br + +.br +wave_get_pulses Length in pulses of the current waveform +.br +wave_get_high_pulses Length of longest waveform so far +.br +wave_get_max_pulses Absolute maximum allowed pulses +.br +.SS UTILITIES +.br + +.br +get_current_tick Get current tick (microseconds) +.br + +.br +get_hardware_revision Get hardware revision +.br +get_pigpio_version Get the pigpio version +.br +pigpiod_if_version Get the pigpiod_if2 version +.br + +.br +pigpio_error Get a text description of an error code. +.br + +.br +time_sleep Sleeps for a float number of seconds +.br +time_time Float number of seconds since the epoch .br .SH FUNCTIONS @@ -5598,9 +6048,27 @@ The function returns 1 if the edge occurred, otherwise 0. .IP "\fBint bsc_xfer(int pi, bsc_xfer_t *bscxfer)\fP" .IP "" 4 -This function provides a low-level interface to the -SPI/I2C Slave peripheral. This peripheral allows the -Pi to act as a slave device on an I2C or SPI bus. +This function provides a low-level interface to the SPI/I2C Slave +peripheral on the BCM chip. + +.br + +.br +This peripheral allows the Pi to act as a hardware slave device +on an I2C or SPI bus. + +.br + +.br +This is not a bit bang version and as such is OS timing +independent. The bus timing is handled directly by the chip. + +.br + +.br +The output process is simple. You simply append data to the FIFO +buffer on the chip. This works like a queue, you add data to the +queue and the master removes it. .br @@ -5655,8 +6123,9 @@ typedef struct .br .br -To start a transfer set control (see below) and copy the bytes to -be sent (if any) to txBuf and set the byte count in txCnt. +To start a transfer set control (see below), copy the bytes to +be added to the transmit FIFO (if any) to txBuf and set txCnt to +the number of copied bytes. .br diff --git a/pigpiod_if2.c b/pigpiod_if2.c index cd343c0..6854d65 100644 --- a/pigpiod_if2.c +++ b/pigpiod_if2.c @@ -25,7 +25,7 @@ OTHER DEALINGS IN THE SOFTWARE. For more information, please refer to */ -/* PIGPIOD_IF2_VERSION 15 */ +/* PIGPIOD_IF2_VERSION 16 */ #include #include diff --git a/pigpiod_if2.h b/pigpiod_if2.h index b63dbc7..fb214df 100644 --- a/pigpiod_if2.h +++ b/pigpiod_if2.h @@ -30,7 +30,7 @@ For more information, please refer to #include "pigpio.h" -#define PIGPIOD_IF2_VERSION 15 +#define PIGPIOD_IF2_VERSION 16 /*TEXT @@ -104,7 +104,7 @@ ESSENTIAL pigpio_start Connects to a pigpio daemon pigpio_stop Disconnects from a pigpio daemon -BEGINNER +BASIC set_mode Set a GPIO mode get_mode Get a GPIO mode @@ -114,16 +114,23 @@ set_pull_up_down Set/clear GPIO pull up/down resistor gpio_read Read a GPIO gpio_write Write a GPIO +PWM_(overrides_servo_commands_on_same_GPIO) + set_PWM_dutycycle Start/stop PWM pulses on a GPIO +set_PWM_frequency Configure PWM frequency for a GPIO +set_PWM_range Configure PWM range for a GPIO + get_PWM_dutycycle Get the PWM dutycycle in use on a GPIO +get_PWM_frequency Get configured PWM frequency for a GPIO +get_PWM_range Get configured PWM range for a GPIO + +get_PWM_real_range Get underlying PWM range for a GPIO + +Servo_(overrides_PWM_commands_on_same_GPIO) set_servo_pulsewidth Start/stop servo pulses on a GPIO -get_servo_pulsewidth Get the servo pulsewidth in use on a GPIO -callback Create GPIO level change callback -callback_ex Create GPIO level change callback, extended -callback_cancel Cancel a callback -wait_for_edge Wait for GPIO level change +get_servo_pulsewidth Get the servo pulsewidth in use on a GPIO INTERMEDIATE @@ -131,12 +138,6 @@ gpio_trigger Send a trigger pulse to a GPIO. set_watchdog Set a watchdog on a GPIO. -set_PWM_range Configure PWM range for a GPIO -get_PWM_range Get configured PWM range for a GPIO - -set_PWM_frequency Configure PWM frequency for a GPIO -get_PWM_frequency Get configured PWM frequency for a GPIO - read_bank_1 Read all GPIO in bank 1 read_bank_2 Read all GPIO in bank 2 @@ -146,35 +147,52 @@ clear_bank_2 Clear selected GPIO in bank 2 set_bank_1 Set selected GPIO in bank 1 set_bank_2 Set selected GPIO in bank 2 +callback Create GPIO level change callback +callback_ex Create GPIO level change callback, extended + +callback_cancel Cancel a callback + +wait_for_edge Wait for GPIO level change + start_thread Start a new thread stop_thread Stop a previously started thread ADVANCED -get_PWM_real_range Get underlying PWM range for a GPIO - notify_open Request a notification handle notify_begin Start notifications for selected GPIO notify_pause Pause notifications notify_close Close a notification -bb_serial_read_open Opens a GPIO for bit bang serial reads -bb_serial_read Reads bit bang serial data from a GPIO -bb_serial_read_close Closes a GPIO for bit bang serial reads -bb_serial_invert Invert serial logic (1 invert, 0 normal) - hardware_clock Start hardware clock on supported GPIO + hardware_PWM Start hardware PWM on supported GPIO set_glitch_filter Set a glitch filter on a GPIO set_noise_filter Set a noise filter on a GPIO -get_pad_strength Gets a pads drive strength set_pad_strength Sets a pads drive strength +get_pad_strength Gets a pads drive strength shell_ Executes a shell command -SCRIPTS +Custom + +custom_1 User custom function 1 +custom_2 User custom function 2 + +Events + +event_callback Sets a callback for an event +event_callback_ex Sets a callback for an event, extended + +event_callback_cancel Cancel an event callback + +event_trigger Triggers an event + +wait_for_event Wait for an event + +Scripts store_script Store a script run_script Run a stored script @@ -183,6 +201,98 @@ script_status Get script status and parameters stop_script Stop a running script delete_script Delete a stored script +I2C + +i2c_open Opens an I2C device +i2c_close Closes an I2C device + +i2c_write_quick smbus write quick + +i2c_read_byte smbus read byte +i2c_write_byte smbus write byte + +i2c_read_byte_data smbus read byte data +i2c_write_byte_data smbus write byte data + +i2c_read_word_data smbus read word data +i2c_write_word_data smbus write word data + +i2c_read_block_data smbus read block data +i2c_write_block_data smbus write block data + +i2c_read_i2c_block_data smbus read I2C block data +i2c_write_i2c_block_data smbus write I2C block data + +i2c_read_device Reads the raw I2C device +i2c_write_device Writes the raw I2C device + +i2c_process_call smbus process call +i2c_block_process_call smbus block process call + +i2c_zip Performs multiple I2C transactions + +I2C_BIT_BANG + +bb_i2c_open Opens GPIO for bit banging I2C +bb_i2c_close Closes GPIO for bit banging I2C + +bb_i2c_zip Performs bit banged I2C transactions + +I2C/SPI_SLAVE + +bsc_xfer I2C/SPI as slave transfer +bsc_i2c I2C as slave transfer + +SERIAL + +serial_open Opens a serial device +serial_close Closes a serial device + +serial_read_byte Reads a byte from a serial device +serial_write_byte Writes a byte to a serial device + +serial_read Reads bytes from a serial device +serial_write Writes bytes to a serial device + +serial_data_available Returns number of bytes ready to be read + +SERIAL_BIT_BANG_(read_only) + +bb_serial_read_open Opens a GPIO for bit bang serial reads +bb_serial_read_close Closes a GPIO for bit bang serial reads + +bb_serial_invert Invert serial logic (1 invert, 0 normal) + +bb_serial_read Reads bit bang serial data from a GPIO + +SPI + +spi_open Opens a SPI device +spi_close Closes a SPI device + +spi_read Reads bytes from a SPI device +spi_write Writes bytes to a SPI device +spi_xfer Transfers bytes with a SPI device + +SPI_BIT_BANG + +bb_spi_open Opens GPIO for bit banging SPI +bb_spi_close Closes GPIO for bit banging SPI + +bb_spi_xfer Transfers bytes with bit banging SPI + +FILES + +file_open Opens a file +file_close Closes a file + +file_read Reads bytes from a file +file_write Writes bytes to a file + +file_seek Seeks to a position within a file + +file_list List files which match a pattern + WAVES wave_clear Deletes all waveforms @@ -201,10 +311,16 @@ wave_send_using_mode Transmits a waveform in the chosen mode wave_chain Transmits a chain of waveforms wave_tx_at Returns the current transmitting waveform + wave_tx_busy Checks to see if the waveform has ended + wave_tx_stop Aborts the current waveform -wave_get_micros Length in microseconds of the current waveform +wave_get_cbs Length in cbs of the current waveform +wave_get_high_cbs Length of longest waveform so far +wave_get_max_cbs Absolute maximum allowed cbs + +wave_get_micros Length in micros of the current waveform wave_get_high_micros Length of longest waveform so far wave_get_max_micros Absolute maximum allowed micros @@ -212,91 +328,6 @@ wave_get_pulses Length in pulses of the current waveform wave_get_high_pulses Length of longest waveform so far wave_get_max_pulses Absolute maximum allowed pulses -wave_get_cbs Length in cbs of the current waveform -wave_get_high_cbs Length of longest waveform so far -wave_get_max_cbs Absolute maximum allowed cbs - -I2C - -i2c_open Opens an I2C device -i2c_close Closes an I2C device - -i2c_write_quick smbus write quick -i2c_write_byte smbus write byte -i2c_read_byte smbus read byte -i2c_write_byte_data smbus write byte data -i2c_write_word_data smbus write word data -i2c_read_byte_data smbus read byte data -i2c_read_word_data smbus read word data -i2c_process_call smbus process call -i2c_write_block_data smbus write block data -i2c_read_block_data smbus read block data -i2c_block_process_call smbus block process call - -i2c_write_i2c_block_data smbus write I2C block data -i2c_read_i2c_block_data smbus read I2C block data - -i2c_read_device Reads the raw I2C device -i2c_write_device Writes the raw I2C device - -i2c_zip Performs multiple I2C transactions - -bb_i2c_open Opens GPIO for bit banging I2C -bb_i2c_close Closes GPIO for bit banging I2C -bb_i2c_zip Performs multiple bit banged I2C transactions - -SPI - -spi_open Opens a SPI device -spi_close Closes a SPI device - -spi_read Reads bytes from a SPI device -spi_write Writes bytes to a SPI device -spi_xfer Transfers bytes with a SPI device - -bb_spi_open Opens GPIO for bit banging SPI -bb_spi_close Closes GPIO for bit banging SPI -bb_spi_xfer Transfers bytes with bit banging SPI - -I2C/SPI_SLAVE - -bsc_xfer I2C/SPI as slave transfer -bsc_i2c I2C as slave transfer - -SERIAL - -serial_open Opens a serial device -serial_close Closes a serial device - -serial_write_byte Writes a byte to a serial device -serial_read_byte Reads a byte from a serial device -serial_write Writes bytes to a serial device -serial_read Reads bytes from a serial device - -serial_data_available Returns number of bytes ready to be read - -FILES - -file_open Opens a file -file_close Closes a file -file_read Reads bytes from a file -file_write Writes bytes to a file -file_seek Seeks to a position within a file -file_list List files which match a pattern - -EVENTS - -event_callback Sets a callback for an event -event_callback_ex Sets a callback for an event, extended -event_callback_cancel Cancel an event callback -event_trigger Triggers an event -wait_for_event Wait for an event - -CUSTOM - -custom_1 User custom function 1 -custom_2 User custom function 2 - UTILITIES get_current_tick Get current tick (microseconds) @@ -3398,9 +3429,18 @@ D*/ /*F*/ int bsc_xfer(int pi, bsc_xfer_t *bscxfer); /*D -This function provides a low-level interface to the -SPI/I2C Slave peripheral. This peripheral allows the -Pi to act as a slave device on an I2C or SPI bus. +This function provides a low-level interface to the SPI/I2C Slave +peripheral on the BCM chip. + +This peripheral allows the Pi to act as a hardware slave device +on an I2C or SPI bus. + +This is not a bit bang version and as such is OS timing +independent. The bus timing is handled directly by the chip. + +The output process is simple. You simply append data to the FIFO +buffer on the chip. This works like a queue, you add data to the +queue and the master removes it. This function is not available on the BCM2711 (e.g. as used in the Pi4B). @@ -3427,8 +3467,9 @@ typedef struct } bsc_xfer_t; . . -To start a transfer set control (see below) and copy the bytes to -be sent (if any) to txBuf and set the byte count in txCnt. +To start a transfer set control (see below), copy the bytes to +be added to the transmit FIFO (if any) to txBuf and set txCnt to +the number of copied bytes. Upon return rxCnt will be set to the number of received bytes placed in rxBuf. diff --git a/pigs.1 b/pigs.1 index 3926b64..81ccfee 100644 --- a/pigs.1 +++ b/pigs.1 @@ -2,7 +2,7 @@ ." Process this file with ." groff -man -Tascii foo.1 ." -.TH pigs 1 2012-2018 Linux "pigpio archive" +.TH pigs 1 2012-2019 Linux "pigpio archive" .SH NAME pigs - command line socket access to the pigpio daemon. @@ -28,8 +28,8 @@ or .br -The socket and pipe interfaces allow control of the GPIO by passing -messages to the running pigpio library. +The socket and pipe interfaces allow control of the Pi's GPIO by +passing messages to the running pigpio library. .br The normal way to start the pigpio library would be as a daemon during boot. @@ -42,10 +42,6 @@ sudo pigpiod .EE -.br -pigs is a program and internally uses the socket interface to pigpio -whereas /dev/pigpio uses the pipe interface. - .br .SS Features .br @@ -80,7 +76,11 @@ ALL GPIO are identified by their Broadcom number. .br .SS Usage .br -pigs and the socket interface share the same commands and are invoked in +pigs is a program and internally uses the socket interface to pigpio +whereas /dev/pigpio uses the pipe interface. + +.br +pigs and the pipe interface share the same commands and are invoked in a similar fashion from the command line. .br @@ -242,6 +242,372 @@ $ pigs -x slr 4 100 .br +.SH OVERVIEW +.SS BASIC +.B M/MODES g m +Set GPIO mode +.P +.B MG/MODEG g +Get GPIO mode +.P +.B PUD g p +Set GPIO pull up/down +.P +.B R/READ g +Read GPIO level +.P +.B W/WRITE g L +Write GPIO level +.P +.SS PWM (overrides servo commands on same GPIO) +.B P/PWM u v +Set GPIO PWM value +.P +.B PFS u v +Set GPIO PWM frequency +.P +.B PRS u v +Set GPIO PWM range +.P +.B GDC u +Get GPIO PWM dutycycle +.P +.B PFG u +Get GPIO PWM frequency +.P +.B PRG u +Get GPIO PWM range +.P +.B PRRG u +Get GPIO PWM real range +.P +.SS Servo (overrides PWM commands on same GPIO) +.B S/SERVO u v +Set GPIO servo pulsewidth +.P +.B GPW u +Get GPIO servo pulsewidth +.P +.SS INTERMEDIATE +.B TRIG u pl L +Send a trigger pulse +.P +.B WDOG u v +Set GPIO watchdog +.P +.B BR1 +Read bank 1 GPIO +.P +.B BR2 +Read bank 2 GPIO +.P +.B BC1 bits +Clear specified GPIO in bank 1 +.P +.B BC2 bits +Clear specified GPIO in bank 2 +.P +.B BS1 bits +Set specified GPIO in bank 1 +.P +.B BS2 bits +Set specified GPIO in bank 2 +.P +.SS ADVANCED +.B NO +Request a notification +.P +.B NC h +Close notification +.P +.B NB h bits +Start notification +.P +.B NP h +Pause notification +.P +.B HC g cf +Set hardware clock frequency +.P +.B HP g pf pdc +Set hardware PWM frequency and dutycycle +.P +.B FG u stdy +Set a glitch filter on a GPIO +.P +.B FN u stdy actv +Set a noise filter on a GPIO +.P +.B PADS pad padma +Set pad drive strength +.P +.B PADG pad +Get pad drive strength +.P +.B SHELL name str +Execute a shell command +.P +.SS Custom +.B CF1 uvs +Custom function 1 +.P +.B CF2 uvs +Custom function 2 +.P +.SS Events +.B EVM h bits +Set events to monitor +.P +.B EVT event +Trigger event +.P +.SS Scripts +.B PROC t +Store script +.P +.B PROCR sid pars +Run script +.P +.B PROCU sid pars +Set script parameters +.P +.B PROCP sid +Get script status and parameters +.P +.B PROCS sid +Stop script +.P +.B PROCD sid +Delete script +.P +.B PARSE t +Validate script +.P +.SS I2C +.B I2CO ib id if +Open I2C bus and device with flags +.P +.B I2CC h +Close I2C handle +.P +.B I2CWQ h bit +smb Write Quick: write bit +.P +.B I2CRS h +smb Read Byte: read byte +.P +.B I2CWS h bv +smb Write Byte: write byte +.P +.B I2CRB h r +smb Read Byte Data: read byte from register +.P +.B I2CWB h r bv +smb Write Byte Data: write byte to register +.P +.B I2CRW h r +smb Read Word Data: read word from register +.P +.B I2CWW h r wv +smb Write Word Data: write word to register +.P +.B I2CRK h r +smb Read Block Data: read data from register +.P +.B I2CWK h r bvs +smb Write Block Data: write data to register +.P +.B I2CWI h r bvs +smb Write I2C Block Data +.P +.B I2CRI h r num +smb Read I2C Block Data: read bytes from register +.P +.B I2CRD h num +i2c Read device +.P +.B I2CWD h bvs +i2c Write device +.P +.B I2CPC h r wv +smb Process Call: exchange register with word +.P +.B I2CPK h r bvs +smb Block Process Call: exchange data bytes with register +.P +.B I2CZ h bvs +Performs multiple I2C transactions +.P +.SS I2C BIT BANG +.B BI2CO sda scl b +Open bit bang I2C +.P +.B BI2CC sda +Close bit bang I2C +.P +.B BI2CZ sda bvs +I2C bit bang multiple transactions +.P +.SS I2C/SPI SLAVE +.B BSCX bctl bvs +BSC I2C/SPI transfer +.P +.SS SERIAL +.B SERO dev b sef +Open serial device dev at baud b with flags +.P +.B SERC h +Close serial handle +.P +.B SERRB +Read byte from serial handle +.P +.B SERWB h bv +Write byte to serial handle +.P +.B SERR h num +Read bytes from serial handle +.P +.B SERW h bvs +Write bytes to serial handle +.P +.B SERDA h +Check for serial data ready to read +.P +.SS SERIAL BIT BANG (read only) +.B SLRO u b db +Open GPIO for bit bang serial data +.P +.B SLRC u +Close GPIO for bit bang serial data +.P +.B SLRI u v +Sets bit bang serial data logic levels +.P +.B SLR u num +Read bit bang serial data from GPIO +.P +.SS SPI +.B SPIO c b spf +SPI open channel at baud b with flags +.P +.B SPIC h +SPI close handle +.P +.B SPIR h num +SPI read bytes from handle +.P +.B SPIW h bvs +SPI write bytes to handle +.P +.B SPIX h bvs +SPI transfer bytes to handle +.P +.SS SPI BIT BANG +.B BSPIO cs miso mosi sclk b spf +Open bit bang SPI +.P +.B BSPIC cs +Close bit bang SPI +.P +.B BSPIX cs bvs +SPI bit bang transfer +.P +.SS FILES +.B FO file mode +Open a file in mode +.P +.B FC h +Close file handle +.P +.B FR h num +Read bytes from file handle +.P +.B FW h bvs +Write bytes to file handle +.P +.B FS h num from +Seek to file handle position +.P +.B FL pat num +List files which match pattern +.P +.SS WAVES +.B WVCLR +Clear all waveforms +.P +.B WVNEW +Initialise a new waveform +.P +.B WVAG trips +Add generic pulses to waveform +.P +.B WVAS u b db sb o bvs +Add serial data to waveform +.P +.B WVCRE +Create a waveform +.P +.B WVDEL wid +Delete selected waveform +.P +.B WVTX wid +Transmits waveform once +.P +.B WVTXM wid wmde +Transmits waveform using mode +.P +.B WVTXR wid +Transmits waveform repeatedly +.P +.B WVCHA bvs +Transmits a chain of waveforms +.P +.B WVTAT +Returns the current transmitting waveform +.P +.B WVBSY +Check if waveform is being transmitted +.P +.B WVHLT +Stop waveform +.P +.B WVSC ws +Get waveform DMA CB stats +.P +.B WVSM ws +Get waveform time stats +.P +.B WVSP ws +Get waveform pulse stats +.P +.SS UTILITIES +.B H/HELP +Display command help +.P +.B HWVER +Get hardware version +.P +.B MICS v +Microseconds delay +.P +.B MILS v +Milliseconds delay +.P +.B PIGPV +Get pigpio library version +.P +.B T/TICK +Get current tick +.P +.SS CONFIGURATION +.B CGI +Configuration get internals +.P +.B CSI v +Configuration set internals +.P + .SH COMMANDS .br @@ -542,6 +908,23 @@ ERROR: no permission to update one or more GPIO This command performs a BSC I2C/SPI slave transfer as defined by \fBbctl\fP with data \fBbvs\fP. +.br +This function provides a low-level interface to the SPI/I2C Slave +peripheral on the BCM chip. + +.br +This peripheral allows the Pi to act as a hardware slave device +on an I2C or SPI bus. + +.br +This is not a bit bang version and as such is OS timing +independent. The bus timing is handled directly by the chip. + +.br +The output process is simple. You simply append data to the FIFO +buffer on the chip. This works like a queue, you add data to the +queue and the master removes it. + .br This function is not available on the BCM2711 (e.g. as used in the Pi4B). @@ -1974,7 +2357,7 @@ $ pigs i2crb 0 0 .br -.IP "\fBI2CRD h num\fP - i2c Read bytes" +.IP "\fBI2CRD h num\fP - i2c Read device" .IP "" 4 .br @@ -2146,7 +2529,7 @@ $ pigs i2cwb 0 10 0x54 .br -.IP "\fBI2CWD h bvs\fP - i2c Write data" +.IP "\fBI2CWD h bvs\fP - i2c Write device" .IP "" 4 .br diff --git a/setup.py b/setup.py index 2b5505c..00f70a0 100644 --- a/setup.py +++ b/setup.py @@ -3,7 +3,7 @@ from distutils.core import setup setup(name='pigpio', - version='1.44', + version='1.45', author='joan', author_email='joan@abyz.me.uk', maintainer='joan',