HAL_I2C_IsDeviceReady and private function problem

[samimi.electronics]

Hi,

I'm trying to interface with an MPU6050 with STM32F103C8T6 Blue pill board or the so called stm32duino board. I have code written as such:

/* USER CODE BEGIN 2 */

if(HAL_I2C_IsDeviceReady(&hi2c1, MPU6050_ADDRESS, 2, 10) == HAL_OK){

HAL_GPIO_TogglePin(SENSOR_OK_LED_GPIO_Port,SENSOR_OK_LED_Pin);

}

 /* USER CODE END 2 */

It works no problem. The problem is when I put this code into a function like so:

/* USER CODE BEGIN PFP */

void MPU6050_Init(void);

/* USER CODE END PFP */

/* USER CODE BEGIN Init */

MPU6050_Init();

 /* USER CODE END Init */

/* USER CODE BEGIN 4 */

void MPU6050_Init(void){

if(HAL_I2C_IsDeviceReady(&hi2c1, MPU6050_ADDRESS, 2, 10) == HAL_OK){

HAL_GPIO_TogglePin(SENSOR_OK_LED_GPIO_Port,SENSOR_OK_LED_Pin);

}

}

/* USER CODE END 4 */

Why? Am I doing something wrong? Does this have to do anything with pointers and functions that I don't know about? Because as far as I know, this should work just fine.

I'm using STM32CubeMX & Keil MDK v5.

[asbjorn.heid]

The "USER CODE BEGIN Init" block is before the other peripherials are initialized, like the GPIO pin you're using for the sensor ok LED.

So move the MPU6050_Init() back to where you had the other code, ie in "USER CODE BEGIN 2" block.

[samimi.electronics]

thanks men. it fixed.