使用KL26自己写的I2C，驱动TPS65185

sunkk0113 · 发表于 2015-5-6 11:39:13

TPS65185是一款电源芯片，不知道有多少飞友在用，这是我写的，不知道多大家有多少帮助。

TPS65185.C

#include "tps65185.h"
#include "i2c.h"

#define TPS_ERROR  0
#define TPS_SUCCESS 1

static void pause(void)
{
unsigned int i,j;
for(i = 0; i <4000; i++) {
      __nop();
}

}

////////////////////////////////////////////////////////////////////////
// TPS65185_reg  Read_Write
//
////////////////////////////////////////////////////////////////////////

extern unsigned char  tps_dev_read_reg(unsigned char addr)
{
unsigned char  result;

i2c_start();

i2c_write_byte(TPS65185_I2C1_ADDRESS | I2C_WRITE);
i2c_wait();
i2c_get_ack();

i2c_write_byte(addr);
i2c_wait();
i2c_get_ack();

i2c_repeated_start();
i2c_write_byte(TPS65185_I2C1_ADDRESS | I2C_READ);
i2c_wait();
i2c_get_ack();

i2c_set_rx_mode();

i2c_give_nack();
result = i2c_read_byte();
i2c_wait();

i2c_stop ();
result = i2c_read_byte();
pause();
return result;
}

extern unsigned char tps_dev_write_reg(unsigned char addr, unsigned char  data)
{
   unsigned char  result;

i2c_start();
i2c_write_byte(TPS65185_I2C1_ADDRESS|I2C_WRITE);
i2c_wait();
i2c_get_ack();

i2c_write_byte(addr);
i2c_wait();
i2c_get_ack();

i2c_write_byte(data);
i2c_wait();
i2c_get_ack();

i2c_stop();
pause();
result = i2c_read_byte();
pause();
return result;
}

extern unsigned char tps_dev_test_reg_rw(unsigned char addr,unsigned char data)
{
   unsigned char  d;
   d = tps_dev_read_reg(addr);
   tps_dev_write_reg(addr,data);
   d = tps_dev_read_reg(addr);
   return 0;
}

TPS65185.H
#ifndef _TPS65185_H_
#define _TPS65185_H_

#define TPS65185_I2C1_ADDRESS  0xd0
#define I2C_READ 1
#define I2C_WRITE 0

extern unsigned char tps_dev_read_reg(unsigned char addr);
extern unsigned char tps_dev_write_reg(unsigned char addr, unsigned char  data);
extern unsigned char tps_dev_test_reg_rw(unsigned char addr,unsigned char data);

#endif

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