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I2C Busy Flag problem

Question asked by arslan.bahadir on Dec 21, 2013
Latest reply on Dec 22, 2013 by arslan.bahadir

hello.
I want to write byte to the sensör with I2C so write this code 
void MPU6050_I2C_Init()
{
        // RCC Configuration
        RCC_HCLKConfig(RCC_SYSCLK_Div2);
        RCC_PCLK1Config(RCC_HCLK_Div1);
        RCC_PCLK2Config(RCC_HCLK_Div1);             RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1,ENABLE);      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
     // GPIO Configuration
     GPIO_Config_Anahtari.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7; 
     GPIO_Config_Anahtari.GPIO_Mode = GPIO_Mode_AF_OD;
 
     GPIO_Config_Anahtari.GPIO_Speed = GPIO_Speed_2MHz;
      GPIO_Init(GPIOB,&GPIO_Config_Anahtari);       GPIO_PinRemapConfig(GPIO_Remap_I2C1,ENABLE);
       // I2C Configuration
      I2C_Config_Anahtari.I2C_Mode = I2C_Mode_I2C;       I2C_Config_Anahtari.I2C_ClockSpeed = 400000;        I2C_Config_Anahtari.I2C_DutyCycle = I2C_DutyCycle_2;      I2C_Config_Anahtari.I2C_Ack = ENABLE;      I2C_Config_Anahtari.I2C_AcknowledgedAddress =      I2C_AcknowledgedAddress_7bit;     
      I2C_Config_Anahtari.I2C_OwnAddress1 = 0x10; 
     I2C_Init(I2C1,&I2C_Config_Anahtari);
      I2C_Cmd(I2C1,ENABLE);
}
void I2C_MonitorAndClear_ADDR()
{
        while(I2C_GetFlagStatus(I2C1,I2C_FLAG_ADDR)==RESET);             I2C_ReadRegister(I2C1,I2C_Register_SR1);      
     I2C_ReadRegister(I2C1,I2C_Register_SR2);
}
void I2C_Clear_SB_Monitor_MSL()
{
        I2C_ReadRegister(I2C1,I2C_Register_SR1);       
     while(I2C_GetFlagStatus(I2C1,I2C_FLAG_MSL)==RESET);
}
void MPU6050_SingleByte_Write(uint8_t register_address,uint8_t data)
{
        while(I2C_GetFlagStatus(I2C1,I2C_FLAG_BUSY)==SET);       
     I2C_GenerateSTART(I2C1,ENABLE);
      I2C_Clear_SB_Monitor_MSL();       
     I2C_Send7bitAddress(I2C1,MPU6050_Default_Address,I2C_Direction_Transmitter);
     I2C_MonitorAndClear_ADDR(); 
     while(I2C_GetFlagStatus(I2C1,I2C_FLAG_TRA)==RESET);
 
     I2C_SendData(I2C1,register_address);
 
     while(I2C_GetFlagStatus(I2C1,I2C_FLAG_TXE)==RESET);
 
     I2C_SendData(I2C1,data);
 
     while(I2C_GetFlagStatus(I2C1,I2C_FLAG_BTF)==RESET);
 
     I2C_GenerateSTOP(I2C1,ENABLE);
}



here is my functions . In RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1,ENABLE); line , BUSY flag is set and never reset. So code hangs in here. When I reset the I2C1 periph clock with RCC_APB2PeriphResetCmd command , busy flag is reset but I can't configure the I2C interface after reset cmd. So what is the problem ?

thanks for your answer.

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