Texas Instruments MSP430

296
{
return UCB0STAT;
}
UCB0TXBUF = value;
while(!(IFG2 & UCB0TXIFG));
if(UCB0STAT & UCNACKIFG)
{
return UCB0STAT;
}
UCB0CTL1 |= UCTXSTP;
IFG2 &= ~UCB0TXIFG;
return 0;
}
BH1750.h
#include <msp430.h>
#include "delay.h"
#include "HW_I2C.h"
#define BH1750_addr 0x23
#define power_down 0x00
#define power_up 0x01
#define reset 0x07
#define cont_H_res_mode1 0x10
#define cont_H_res_mode2 0x11
#define cont_L_res_mode 0x13
#define one_time_H_res_mode1 0x20
#define one_time_H_res_mode2 0x21
#define one_time_L_res_mode 0x23
void BH1750_init(void);
void BH1750_write(unsigned char cmd);
unsigned int BH1750_read_word(void);
unsigned int get_lux_value(unsigned char mode, unsigned int delay_time);
BH1750.c
#include "BH1750.h"
void BH1750_init(void)
{
I2C_USCI_init(BH1750_addr);
delay_ms(10);
BH1750_write(power_down);
}
void BH1750_write(unsigned char cmd)