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Attempt to fix reading of registers

This commit is contained in:
aeprox 2015-08-22 21:19:27 +02:00
parent 159e9c6ace
commit 7095c42477
2 changed files with 17 additions and 15 deletions
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26
app/tsl2561/tsl2561.c
View File

@ -1,7 +1,7 @@
/**************************************************************************/
/*!
@file tsl2561.c
@author K. Townsend (microBuilder.eu)
@author K. Townsend (microBuilder.eu)/ Adapted for nodeMCU by Michael Lucas (Aeprox @github)
@brief Drivers for the TAOS TSL2561 I2C digital luminosity sensor
@ -21,7 +21,7 @@
uint32_t lux;
// Initialise luminosity sensor
tsl2561Init();
tsl2561Init(sda_pin, scl_pin);
// Optional ... default setting is 400ms with no gain
// Set timing to 101ms with no gain
@ -100,20 +100,22 @@ tsl2561Error_t tsl2561Read16(uint8_t reg, uint16_t *value)
platform_i2c_send_address(tsl2561_i2c_id, TSL2561_ADDRESS, PLATFORM_I2C_DIRECTION_TRANSMITTER);
platform_i2c_send_byte(tsl2561_i2c_id, reg);
platform_i2c_send_stop(tsl2561_i2c_id);
platform_i2c_send_start(tsl2561_i2c_id);
platform_i2c_send_address(tsl2561_i2c_id, TSL2561_ADDRESS, PLATFORM_I2C_DIRECTION_RECEIVER);
uint8_t ch_low = platform_i2c_recv_byte(tsl2561_i2c_id, 0);
platform_i2c_send_stop(tsl2561_i2c_id);
platform_i2c_send_start(tsl2561_i2c_id);
platform_i2c_send_address(tsl2561_i2c_id, TSL2561_ADDRESS, PLATFORM_I2C_DIRECTION_TRANSMITTER);
platform_i2c_send_byte(tsl2561_i2c_id, reg+1);
platform_i2c_send_stop(tsl2561_i2c_id);
platform_i2c_send_start(tsl2561_i2c_id);
platform_i2c_send_address(tsl2561_i2c_id, TSL2561_ADDRESS, PLATFORM_I2C_DIRECTION_RECEIVER);
uint8_t ch_high = platform_i2c_recv_byte(tsl2561_i2c_id, 0);
platform_i2c_send_stop(tsl2561_i2c_id);
platform_i2c_send_start(tsl2561_i2c_id);
platform_i2c_send_address(tsl2561_i2c_id, TSL2561_ADDRESS, PLATFORM_I2C_DIRECTION_TRANSMITTER);
platform_i2c_send_byte(tsl2561_i2c_id, reg);
platform_i2c_send_stop(tsl2561_i2c_id);
platform_i2c_send_start(tsl2561_i2c_id);
platform_i2c_send_address(tsl2561_i2c_id, TSL2561_ADDRESS, PLATFORM_I2C_DIRECTION_RECEIVER);
uint8_t ch_low = platform_i2c_recv_byte(tsl2561_i2c_id, 0);
platform_i2c_send_stop(tsl2561_i2c_id);
// Shift values to create properly formed integer (low byte first)
*value = (ch_low | (ch_high << 8));
@ -181,7 +183,7 @@ tsl2561Error_t tsl2561SetTiming(tsl2561IntegrationTime_t integration, tsl2561Gai
error = tsl2561Enable();
if (error) return error;
// Turn the device off to save power
// set timing and gain on device
error = tsl2561Write8(TSL2561_COMMAND_BIT | TSL2561_REGISTER_TIMING, integration | gain);
if (error) return error;

6
app/tsl2561/tsl2561.h
View File

@ -1,13 +1,13 @@
/**************************************************************************/
/*!
@file tsl2561.h
@author K. Townsend (microBuilder.eu)
@author K. Townsend (microBuilder.eu) / Adapted for nodeMCU by Michael Lucas (Aeprox @github)
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2010, microBuilder SARL
Copyright (c) 2010, microBuilder SARL/ Adapted for nodeMCU by Michael Lucas (Aeprox @github)
All rights reserved.
Redistribution and use in source and binary forms, with or without
@ -41,7 +41,7 @@
#define TSL2561_PACKAGE_CS // Lux calculations differ slightly for CS package
// #define TSL2561_PACKAGE_T_FN_CL
#define TSL2561_ADDRESS (0x72) // 0111001 shifted left 1 bit = 0x72 (ADDR = GND or floating)
#define TSL2561_ADDRESS (0x39) // or 0x29, or 0x49
#define TSL2561_READBIT (0x01)
#define TSL2561_COMMAND_BIT (0x80) // Must be 1