Hard fault on I2C initialization

[Youssouf Coulibaly]

Posted on June 30, 2017 at 09:52

Hello,

First I am new in ST device, I only used Microchip PIC for 6 years.

So any advise or comment will be appreciated.

I am trying to use I2C interface on NucleoBoard F091RC1.

I2C_HandleTypeDef* hi2c1;

void i2cInit(I2C_HandleTypeDef* i2cHandler)

{

      // Assigned I2C handler pointer 

       hi2c1 = i2cHandler;

    // Call I2C init function 

      MX_I2C1_Init();}

void MX_I2C1_Init(void)

{

hi2c1->Instance = I2C1;

      hi2c1->Init.Timing = 0x2000090E;

      hi2c1->Init.OwnAddress1 = 0;       hi2c1->Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;       hi2c1->Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;       hi2c1->Init.OwnAddress2 = 0;       hi2c1->Init.OwnAddress2Masks = I2C_OA2_NOMASK;       hi2c1->Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;       hi2c1->Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;       if (HAL_I2C_Init(hi2c1) != HAL_OK)       {             //Error_Handler();       }

      /**Configure Analogue filter

      */       if (HAL_I2CEx_ConfigAnalogFilter(hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)       {             //Error_Handler();       }

}

In debug mode my code generate an hardware fault event on the first line of

MX_I2C1_Init function

.

Would it be possible for someone to tell me what i am doing wrong ?

Thanks in advance.

[Imen.D · Accepted solution]

Posted on July 03, 2017 at 17:03

Hello

COULIBALY.Youssouf

,

Welcome to STM

Have a look to theworking

example within STM32F091RC-Nucleo available under

STM32CubeF0 firmware package:

STM32Cube_FW_F0_V1.8.0\Projects\STM32F091RC-Nucleo\Examples\I2C

You may re-use sections available in the example or get inspired from them.

Regards

Imen

[Bogdan Golab]

Posted on July 03, 2017 at 17:43

I would start with CubeMX and enable the I2C1, then generate the code. This way you can easily setup clocking as well as every peripheral need to be clocked.

[Youssouf Coulibaly]

Posted on July 04, 2017 at 08:33

Hello Imen D,

Thanks a lot for your support. Now I get timer Interrupt. I have rewritten a weak function HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) in my cpp file.

Now I would lilke to do the same with HAL_DMA_TxCpltCallback(DMA_HandleTypeDef * hdma), but I cannot find any weak function with DMA complete callback.

Would it be possible to trigger a DMA complete without explicitly used a register callback function ?