G4 library bug

[TMark.14]

Stm32g4xx_hal_adc.c line 644 adc_multi_skave macro returns null if adc3 is a parameter to the macro, when it should return pointer to adc4.

[TMark.14]

Stcubeide 1.6.0

Mcu - Stm32g491re

[TMark.14]

Ok I see there is no adc4 on stm32g491re, but why cube ide generates a multimodeconfigchannel function call?

[TDK]

The STM32G491RE has 3 ADCs per the datasheet and per the CMSIS include file. ADC4 doesn't exist on this chip.

[TMark.14]

Correct, but why cubeide generates the multimodeconfigchannel function call for mx_adc3_init? It will get stuck in error handler every time.

[TDK]

I see no such call on a new project. Consider including your IOC file.

/**
  * @brief ADC3 Initialization Function
  * @param None
  * @retval None
  */
static void MX_ADC3_Init(void)
{
 
  /* USER CODE BEGIN ADC3_Init 0 */
 
  /* USER CODE END ADC3_Init 0 */
 
  ADC_ChannelConfTypeDef sConfig = {0};
 
  /* USER CODE BEGIN ADC3_Init 1 */
 
  /* USER CODE END ADC3_Init 1 */
  /** Common config
  */
  hadc3.Instance = ADC3;
  hadc3.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
  hadc3.Init.Resolution = ADC_RESOLUTION_12B;
  hadc3.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc3.Init.GainCompensation = 0;
  hadc3.Init.ScanConvMode = ADC_SCAN_DISABLE;
  hadc3.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
  hadc3.Init.LowPowerAutoWait = DISABLE;
  hadc3.Init.ContinuousConvMode = DISABLE;
  hadc3.Init.NbrOfConversion = 1;
  hadc3.Init.DiscontinuousConvMode = DISABLE;
  hadc3.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc3.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
  hadc3.Init.DMAContinuousRequests = DISABLE;
  hadc3.Init.Overrun = ADC_OVR_DATA_PRESERVED;
  hadc3.Init.OversamplingMode = DISABLE;
  if (HAL_ADC_Init(&hadc3) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_1;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_2CYCLES_5;
  sConfig.SingleDiff = ADC_SINGLE_ENDED;
  sConfig.OffsetNumber = ADC_OFFSET_NONE;
  sConfig.Offset = 0;
  if (HAL_ADC_ConfigChannel(&hadc3, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ADC3_Init 2 */
 
  /* USER CODE END ADC3_Init 2 */
 
}

[TMark.14]

Here is ioc file.

In MX_ADC3_Init() function there is a following code:

multimode.Mode = ADC_MODE_INDEPENDENT;

 if (HAL_ADCEx_MultiModeConfigChannel(&hadc3, &multimode) != HAL_OK)

 {

  Error_Handler();

 }

The program always gets to Error_Handler().

Please confirm that the code you generate from the ioc file also generates the same problem or not.

[TDK]

Your IOC generates the problematic code. However, you are not on the latest package version. After I migrate the IOC to the latest version and generate code, the problem is no longer there.

[TMark.14]

What exactly can I do to generate better code? Do you think it will require updating Cube IDE?

  I am asking because I cannot install software on the computer without headache from IT Dep.