Accelerometer reading is always 0x00

[marco239955_stm1_stmicro_com]

Posted on July 31, 2015 at 02:16

Hey

I'm trying a new board, this is the stm32f411e-disco and I can't read acc. values, they are always 0x00 I've generated the project with STM32CubeMX V4.9.0 The config and the main code are below: &sharpinclude ''stm32f4xx_hal.h''

I2C_HandleTypeDef hi2c1;

HAL_StatusTypeDef acc_ready, acc_read; uint8_t readXYZ[6];

void SystemClock_Config(void);

static void MX_GPIO_Init(void); static void MX_I2C1_Init(void);

int main(void)

{   HAL_Init();   SystemClock_Config();     MX_GPIO_Init();   MX_I2C1_Init();   HAL_I2C_MspInit(&hi2c1);     while (1)   {     HAL_Delay(1000);     HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_15);         HAL_GPIO_WritePin(GPIOD, GPIO_PIN_12, GPIO_PIN_RESET);     HAL_GPIO_WritePin(GPIOD, GPIO_PIN_14, GPIO_PIN_RESET);         //  HAL_OK       = 0x00     //  HAL_ERROR    = 0x01     //  HAL_BUSY     = 0x02     //  HAL_TIMEOUT  = 0x03     acc_ready = HAL_I2C_IsDeviceReady(&hi2c1, (uint16_t) 0x33, (uint32_t) 1, (uint32_t) 1);     switch(acc_ready) {     case HAL_OK:       HAL_GPIO_WritePin(GPIOD, GPIO_PIN_12, GPIO_PIN_SET);       acc_read = HAL_I2C_Mem_Read(&hi2c1, 0x33, 0x28, I2C_MEMADD_SIZE_8BIT, &readXYZ[0], 6, 1);       break;     default:       HAL_GPIO_WritePin(GPIOD, GPIO_PIN_14, GPIO_PIN_SET);       break;     }       }

}

#stm32f4 #i2c #accelerometer