STM32F070控制BH1750的程序问题

泰瑞宝提问时间：2017-9-22 17:32 /

使用STM32F070CB控制BH1750测量光照，网上找了个例程，可以调试一直卡在了 while(I2C_GetFlagStatus(I2C1, I2C_FLAG_TXIS) == RESET);这个位置，之前F103用的多，070还是第一次用，也没有开发资料。哪位仁兄有过类似经验，给帮忙看看啊，不胜感激~#define  DVI_1  GPIO_SetBits(GPIOB, GPIO_Pin_5);       //BH1750的DVI控制
#define  DVI_0  GPIO_ResetBits(GPIOB, GPIO_Pin_5);

#define SlaveAddress 0xB8                               //BH1750地址

#define BH1750FVI_POWER_DOWM                   0x00 //BH1750寄存器地址
#define BH1750FVI_POWER_ON                      0x01
#define BH1750FVI_RESET                         0x07
#define BH1750FVI_CONTINUOUSLY_H_RESOLUTION_MODE  0x10
#define BH1750FVI_CONTINUOUSLY_H_RESOLUTION_MODE2 0x11
#define BH1750FVI_CONTINUOUSLY_L_RESOLUTION_MODE  0x13
#define BH1750FVI_ONE_TIME_H_RESOLUTION_MODE    0x20
#define BH1750FVI_ONE_TIME_H_RESOLUTION_MODE2    0X21
#define BH1750FVI_ONE_TIME_L_RESOLUTION_MODE    0x23

main（）
{
DVI_0;
LED_Delay(0x0FFFFF);
DVI_1;
Single_Write_BH1750(BH1750FVI_POWER_ON);
Single_Write_BH1750(BH1750FVI_CONTINUOUSLY_H_RESOLUTION_MODE);
while (1)
{
      Light = Read_BH1750();
      LED_Delay(0x0FFFFF);

   }
}

void Single_Write_BH1750(uint8_t REG_Data)
{
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY) != RESET);//检测是否总线忙
I2C_TransferHandling(I2C1,SlaveAddress,1,I2C_SoftEnd_Mode,I2C_Generate_Start_Write);
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_TXIS) == RESET);// 检测发送，卡在了这个位置
I2C_SendData(I2C1,REG_Data);
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_TC) == RESET);
I2C_GenerateSTOP(I2C1,ENABLE);
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_STOPF) == RESET);//是否停止
}

uint16_t Read_BH1750()
{
uint16_t Recev = 0x00;//光强为16位。先发送高8后低8
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY) != RESET);//IF BUSY
I2C_TransferHandling(I2C1,SlaveAddress+1,2,I2C_AutoEnd_Mode,I2C_Generate_Start_Read);//这里设置后就不需要 I2C_GenerateSTOP 了
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_RXNE) == RESET);
Recev |= I2C_ReceiveData(I2C1);Recev<<=8;
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_RXNE) == RESET);
Recev |= I2C_ReceiveData(I2C1);
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_STOPF) == RESET);
return Recev;
}

void I2C_EEPROM_24C0x_Init(void)
{
I2C_InitTypeDef  I2C_InitStructure;

GPIO_InitTypeDef  GPIO_InitStructure;

I2C_EEPROM_24C0x_DeInit();

/* sEE_I2C_SCL_GPIO_CLK and sEE_I2C_SDA_GPIO_CLK Periph clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);

/* sEE_I2C Periph clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);

/* Connect PXx to I2C_SCL*/
GPIO_PinAFConfig(sEE_I2C1_PORT, GPIO_PinSource6, GPIO_AF_1);

/* Connect PXx to I2C_SDA*/
GPIO_PinAFConfig(sEE_I2C1_PORT, GPIO_PinSource7, GPIO_AF_1);

/* GPIO configuration */
/* Configure sEE_I2C pins: SCL */
/***
GPIO_InitStructure.GPIO_Pin = I2C1_SCL;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(sEE_I2C1_PORT, &GPIO_InitStructure);

/* Configure sEE_I2C pins: SDA */
//GPIO_InitStructure.GPIO_Pin = I2C1_SDA;

//GPIO_Init(sEE_I2C1_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = I2C1_SCL | I2C1_SDA;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;//这个我觉得影响不大，只要是推挽模式这个可以换成NOPULL
GPIO_Init(GPIOB, &GPIO_InitStructure);

/* I2C configuration */
/* sEE_I2C configuration */
I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
I2C_InitStructure.I2C_AnalogFilter = I2C_AnalogFilter_Enable;
I2C_InitStructure.I2C_DigitalFilter = 0x00;
I2C_InitStructure.I2C_OwnAddress1 = 0x00;
I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStructure.I2C_Timing = sEE_I2C_TIMING;

/* Apply sEE_I2C configuration after enabling it */
I2C_Init(I2C1, &I2C_InitStructure);

/* sEE_I2C Peripheral Enable */
I2C_Cmd(I2C1, ENABLE);

/*选择要控制BH1750的DVI引脚*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;

/*设置要控制的GPIOB引脚为输出模式*/
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_OUT;

/*设置引脚速率为50MHz */
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

/*设置引脚模式为通用推挽输出*/
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;

/*设置引脚模式为无上下拉*/
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;

/*调用库函数，初始化GPIOB*/
GPIO_Init(GPIOB, &GPIO_InitStructure);
}