Hi,
I am working with STM32H747-Disco and I am currently working with I2C bus. My I2C bus is working perfectly fine and I can see the communication. I just have main.c file and everything is there.
I am planning to have different file for the initialisation and I will just call the function from main.c file.
I defined handletypedef in main.c file and passed it as a prameter to another file and I2C stopped working. The code is below:
I2C_HandleTypeDef hi2c4 ;
I have called initialise from main.c passing hi2c4 as a parameter:
Initialise_I2C4(hi2c4);
I have defined initialise function in another file copying the working code from main.c file which is below:
void MX_I2C4_Init(I2C_HandleTypeDef i2c4){
i2c4.Instance = I2C4;
i2c4.Mode = HAL_I2C_MODE_MASTER;
i2c4.Init.Timing = 0x10707DBC; //I2C frequency at 100 KHz. Value generated from CubeMX
i2c4.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
i2c4.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; //Needed only in I2C slave features
i2c4.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
i2c4.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
i2c4.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
//hi2c4.Init.OwnAddress1 = 0; //Needed only in I2C slave features
//hi2c4.Init.OwnAddress2 = 0; //Needed only in I2C slave features
HAL_I2C_Init(&i2c4);
/* if(HAL_I2C_Init(&I2C) == HAL_OK)
{
return 0;
}*/
}
IF I put everything in other file, that also works fine but if I call the function from main.c and pass the typedef as parameter, it does not work.
Could you please help me out with this as I am new to STM32 and I need to add multiple drivers and busses in the prject. I want to keep everthing in other files and call the functions only from main.
