Texas Instruments MSP430

297
{
I2C_USCI_write_byte(BH1750_addr, cmd);
}
unsigned int BH1750_read_word(void)
{
unsigned long value = 0x0000;
unsigned char bytes[2] = {0x00, 0x00};
I2C_USCI_read_word(0x11, bytes, 2);
value = ((bytes[1] << 8) | bytes[0]);
return value;
}
unsigned int get_lux_value(unsigned char mode, unsigned int delay_time)
{
unsigned long lux_value = 0x00;
unsigned char dly = 0x00;
unsigned char s = 0x08;
while(s)
{
BH1750_write(power_up);
BH1750_write(mode);
lux_value += BH1750_read_word();
for(dly = 0; dly < delay_time; dly += 1)
{
delay_ms(1);
}
BH1750_write(power_down);
s--;
}
lux_value >>= 3;
return ((unsigned int)lux_value);
}
main.c
#include <msp430.h>
#include "delay.h"
#include "HW_I2C.h"
#include "SW_I2C.h"
#include "PCF8574.h"
#include "lcd.h"
#include "BH1750.h"
void GPIO_graceInit(void);
void BCSplus_graceInit(void);
void USCI_B0_graceInit(void);
void System_graceInit(void);
void WDTplus_graceInit(void);
void lcd_print(unsigned char x_pos, unsigned char y_pos, unsigned int value);