ADC Failed to execute MI command: -var-create - * step Error message from debugger back end: -var-cr

[SMusc.1]

STM32U5 series

Hi, I am tring to read analog voltage from ADC on this board: STM32 U575ZIT. Using this code:

......

char msg2[15];

......

while (1)

  {

    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */

      HAL_ADC_Start(&hadc1);

  HAL_ADC_PollForConversion(&hadc1, 300);

  raw = HAL_ADC_GetValue(&hadc1);

  float vin = raw*(5/16384);

  sprintf(msg2," vol = %.2f\r\n",vin);

  HAL_UART_Transmit(&huart1, (uint8_t*)msg2, strlen(msg2), 300);

  HAL_Delay(1000);

  //sprintf(msg2," vol = %2.f\r\n",vin);

  }

but any time the follow error happend, and on one selected com, i see any time 0.000000

1) Failed to execute MI command: -var-create - * step Error message from debugger back end: -var-create: unable to create variable object

2) Failed to execute MI command: -var-create - * step Error message from debugger back end: -var-create: unable to create variable object

3) Failed to execute MI command: -data-evaluate-expression step Error message from debugger back end: No symbol "step" in current context.

4) Failed to execute MI command: -var-create - * step Error message from debugger back end: -var-create: unable to create variable object

5) Unable to create variable object

how is possible.

If i try to send only charatters on the com without using ADC, on the selected com i am able to see the data.

Any help please

[TDK]

>   float vin = raw*(5/16384);

This evaluates to zero, since (5/16384) = 0. Perhaps you want:

   float vin = (float)raw * 5.0f / 16384.0f;