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tlc59116 for zolertia, added 0 values at init and code clean-up

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This commit is contained in:
Jelmer Tiete 2013-05-23 23:35:21 +02:00
parent cc2567b988
commit ed8be502db
3 changed files with 38 additions and 32 deletions
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4
examples/z1/test-tlc59116.c
View file

@ -33,6 +33,7 @@
/** /**
* \file * \file
* A simple program for testing the TLC59116 I2C led driver. * A simple program for testing the TLC59116 I2C led driver.
* All 16 outputs will sequencially light up.
* \author * \author
* Jelmer Tiete, VUB <jelmer@tiete.be> * Jelmer Tiete, VUB <jelmer@tiete.be>
*/ */
@ -57,7 +58,7 @@ PROCESS_THREAD(tlc59116_process, ev, data) {
PROCESS_BEGIN(); PROCESS_BEGIN();
{ {
/* Start and setup the led driver with default values, eg outputs on and pwm enabled. */ /* Start and setup the led driver with default values, eg outputs on and pwm enabled and 0. */
tlc59116_init(); tlc59116_init();
while (1) { while (1) {
@ -78,4 +79,3 @@ PROCESS_THREAD(tlc59116_process, ev, data) {
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/

33
platform/z1/dev/tlc59116.c
View file

@ -32,7 +32,7 @@
/** /**
* \file * \file
* Device drivers for tlc5916 led driver in Zolertia Z1. * Device drivers for tlc5916 i2c led driver on Zolertia Z1.
* \author * \author
* Jelmer Tiete, VUB <jelmer@tiete.be> * Jelmer Tiete, VUB <jelmer@tiete.be>
*/ */
@ -44,14 +44,6 @@
#include "i2cmaster.h" #include "i2cmaster.h"
#if 0
#include <stdio.h>
#define PRINTFDEBUG(...) printf(__VA_ARGS__)
#else
#define PRINTFDEBUG(...)
#endif
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/* Write to a register. /* Write to a register.
args: args:
@ -74,8 +66,8 @@ tlc59116_write_reg(uint8_t reg, uint8_t val) {
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/* Write several registers from a stream. /* Write several registers from a stream.
args: args:
len number of bytes to read len number of bytes to write
data pointer to where the data is read from data pointer to where the data is written from
First byte in stream must be the register address to begin writing to. First byte in stream must be the register address to begin writing to.
The data is then written from second byte and increasing. */ The data is then written from second byte and increasing. */
@ -86,7 +78,7 @@ tlc59116_write_stream(uint8_t len, uint8_t *data) {
while (i2c_busy()); while (i2c_busy());
PRINTFDEBUG("I2C Ready to TX(stream)\n"); PRINTFDEBUG("I2C Ready to TX(stream)\n");
i2c_transmit_n(len, data); // start tx and send conf reg i2c_transmit_n(len, data); // start tx and send conf reg
while (i2c_busy()); while (i2c_busy());
PRINTFDEBUG("WRITE_STR %u B to 0x%02X\n", len, data[0]); PRINTFDEBUG("WRITE_STR %u B to 0x%02X\n", len, data[0]);
} }
@ -146,21 +138,22 @@ tlc59116_read_stream(uint8_t reg, uint8_t len, uint8_t *whereto) {
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/* Set pwm value for individual led /* Set pwm value for individual led. Make sure PWM mode is enabled.
*/ */
void void
tlc59116_led(uint8_t led, uint8_t pwm) { tlc59116_led(uint8_t led, uint8_t pwm) {
if (led<0 | led>15) { if (led<0 | led>15) {
PRINTFDEBUG("TLC59116: wrong led value."); PRINTFDEBUG("TLC59116: wrong led value.");
}//else{ }else{
tlc59116_write_reg(led+TLC59116_PWM0, pwm); tlc59116_write_reg(led+TLC59116_PWM0, pwm);
// } }
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/* Init the led driver: ports, pins, registers, interrupts (none enabled), I2C, /* Init the led driver: ports, pins, registers, interrupts (none enabled), I2C,
default threshold values etc. */ default threshold values etc.
*/
void void
tlc59116_init(void) { tlc59116_init(void) {
@ -171,10 +164,14 @@ tlc59116_init(void) {
tlc59116_write_reg(TLC59116_MODE1, TLC59116_MODE1_DEFAULT); tlc59116_write_reg(TLC59116_MODE1, TLC59116_MODE1_DEFAULT);
tlc59116_write_reg(TLC59116_MODE2, TLC59116_MODE2_DEFAULT); tlc59116_write_reg(TLC59116_MODE2, TLC59116_MODE2_DEFAULT);
/*Set all PWM values to 0x00 (off)*/
//This would maybe be better with a SWRST
uint8_t tx_buf[] = {TLC59116_PWM0_AUTOINCR,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
tlc59116_write_stream(17,&tx_buf);
/* set all leds to PWM control */ /* set all leds to PWM control */
tlc59116_write_reg(TLC59116_LEDOUT0,TLC59116_LEDOUT_PWM); tlc59116_write_reg(TLC59116_LEDOUT0,TLC59116_LEDOUT_PWM);
tlc59116_write_reg(TLC59116_LEDOUT1,TLC59116_LEDOUT_PWM); tlc59116_write_reg(TLC59116_LEDOUT1,TLC59116_LEDOUT_PWM);
tlc59116_write_reg(TLC59116_LEDOUT2,TLC59116_LEDOUT_PWM); tlc59116_write_reg(TLC59116_LEDOUT2,TLC59116_LEDOUT_PWM);
tlc59116_write_reg(TLC59116_LEDOUT3,TLC59116_LEDOUT_PWM); tlc59116_write_reg(TLC59116_LEDOUT3,TLC59116_LEDOUT_PWM);
} }

33
platform/z1/dev/tlc59116.h
View file

@ -32,7 +32,7 @@
/** /**
* \file * \file
* Device drivers header file for TLC59116 led driver in Zolertia Z1. * Device drivers header file for TLC59116 i2c led driver on Zolertia Z1.
* \author * \author
* Jelmer Tiete, VUB <jelmer@tiete.be> * Jelmer Tiete, VUB <jelmer@tiete.be>
*/ */
@ -42,6 +42,14 @@
#include <stdio.h> #include <stdio.h>
#include "dev/i2cmaster.h" #include "dev/i2cmaster.h"
#if 0
#include <stdio.h>
#define PRINTFDEBUG(...) printf(__VA_ARGS__)
#else
#define PRINTFDEBUG(...)
#endif
/* -------------------------------------------------------------------------- */ /* -------------------------------------------------------------------------- */
/* Init the led driver: ports, pins, registers, I2C*/ /* Init the led driver: ports, pins, registers, I2C*/
void tlc59116_init(void); void tlc59116_init(void);
@ -59,7 +67,8 @@ void tlc59116_write_reg(uint8_t reg, uint8_t val);
data pointer to where the data is read from data pointer to where the data is read from
First byte in stream must be the register address to begin writing to. First byte in stream must be the register address to begin writing to.
The data is then written from the second byte and increasing. The address byte The data is then written from the second byte and increasing. The address byte
is not included in length len. */ is not included in length len.
*/
void tlc59116_write_stream(uint8_t len, uint8_t *data); void tlc59116_write_stream(uint8_t len, uint8_t *data);
/* Read one register. /* Read one register.
@ -77,12 +86,11 @@ uint8_t tlc59116_read_reg(uint8_t reg);
*/ */
void tlc59116_read_stream(uint8_t reg, uint8_t len, uint8_t *whereto); void tlc59116_read_stream(uint8_t reg, uint8_t len, uint8_t *whereto);
/* Set pwm value for individual led /* Set pwm value for individual led
args: args:
led led output -> 1 till 16 led led output -> 0 till 15
pwm led pwm value pwm led pwm value
*/ */
void tlc59116_led(uint8_t led, uint8_t pwm); void tlc59116_led(uint8_t led, uint8_t pwm);
@ -90,19 +98,20 @@ void tlc59116_led(uint8_t led, uint8_t pwm);
/* Application definitions, change if required by application. */ /* Application definitions, change if required by application. */
/* Suggested defaults according to the data sheet etc */ /* Suggested defaults according to the data sheet etc */
#define TLC59116_MODE1_DEFAULT 0x80 // #define TLC59116_MODE1_DEFAULT 0x80 //
#define TLC59116_MODE2_DEFAULT 0x00 // #define TLC59116_MODE2_DEFAULT 0x00 //
#define TLC59116_LEDOUT_PWM 0xAA // LDRx = 01 -> PWM, 4 leds per reg: 01010101 -> 0xAA
/* -------------------------------------------------------------------------- */ /* -------------------------------------------------------------------------- */
/* Reference definitions, should not be changed */ /* Reference definitions, should not be changed */
/* TLC59116 slave address */ /* TLC59116 slave address */
#define TLC59116_ADDR 0x60 //7bit adress 0xC0 8bit adress; adress with all adress pins pulled to ground #define TLC59116_ADDR 0x60 //7bit adress, 8bit write adress: 0xC0
//#define TLC59116_ALLCALL 0xD0 //address with all address pins pulled to ground
#define TLC59116_LEDOUT_PWM 0xAA // LDRx = 01 -> PWM, 4 leds per reg: 01010101 -> 0xAA
/* TLC59116 registers */ /* TLC59116 registers */
#define TLC59116_MODE1 0x00 #define TLC59116_MODE1 0x00
#define TLC59116_MODE2 0x01 #define TLC59116_MODE2 0x01
#define TLC59116_PWM0_AUTOINCR 0xA2 //
#define TLC59116_PWM0 0x02 #define TLC59116_PWM0 0x02
#define TLC59116_PWM1 0x03 #define TLC59116_PWM1 0x03
#define TLC59116_PWM2 0x04 #define TLC59116_PWM2 0x04
@ -126,7 +135,7 @@ void tlc59116_led(uint8_t led, uint8_t pwm);
#define TLC59116_LEDOUT2 0x16 #define TLC59116_LEDOUT2 0x16
#define TLC59116_LEDOUT3 0x17 #define TLC59116_LEDOUT3 0x17
/* More registers, but not used in this implementation */ /* More registers follow, but not used in this implementation */
/* -------------------------------------------------------------------------- */ /* -------------------------------------------------------------------------- */
#endif /* ifndef __ADXL345_H__ */ #endif /* ifndef __ADXL345_H__ */