CubeMX 6.3: ADC Injected Rank Code Generation not working?

[Framet]

Edit 2: CubeMX 6.2.1 is working aswell. Will use this version for now.

Edit 1: CubeMX 6.0.0 and 6.2.0 are working

After Code Generation, the 3 injected Channels (0,1,2) would be all initialized with ADC_INJECTED_RANK_1 despite other setting in CubeMX.

With older Version this was working. Did something change with the setup which I don't understand or is this a possible bug?

 

[Framet]

I've tested the same with CubeMX 6.0.0 and there it is working again.

/**
 * @brief ADC1 Initialization Function
 * @param None
 * @retval None
 */
static void MX_ADC1_Init(void)
{
 
 /* USER CODE BEGIN ADC1_Init 0 */
 
 /* USER CODE END ADC1_Init 0 */
 
 ADC_ChannelConfTypeDef sConfig = {0};
 ADC_InjectionConfTypeDef sConfigInjected = {0};
 
 /* USER CODE BEGIN ADC1_Init 1 */
 
 /* USER CODE END ADC1_Init 1 */
 /** Common config
 */
 hadc1.Instance = ADC1;
 hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE;
 hadc1.Init.ContinuousConvMode = DISABLE;
 hadc1.Init.DiscontinuousConvMode = DISABLE;
 hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
 hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
 hadc1.Init.NbrOfConversion = 1;
 if (HAL_ADC_Init(&hadc1) != HAL_OK)
 {
 Error_Handler();
 }
 /** Configure Regular Channel
 */
 sConfig.Channel = ADC_CHANNEL_3;
 sConfig.Rank = ADC_REGULAR_RANK_1;
 sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
 if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
 {
 Error_Handler();
 }
 /** Configure Injected Channel
 */
 sConfigInjected.InjectedChannel = ADC_CHANNEL_0;
 sConfigInjected.InjectedRank = ADC_INJECTED_RANK_1;
 sConfigInjected.InjectedNbrOfConversion = 3;
 sConfigInjected.InjectedSamplingTime = ADC_SAMPLETIME_1CYCLE_5;
 sConfigInjected.ExternalTrigInjecConv = ADC_INJECTED_SOFTWARE_START;
 sConfigInjected.AutoInjectedConv = DISABLE;
 sConfigInjected.InjectedDiscontinuousConvMode = DISABLE;
 sConfigInjected.InjectedOffset = 0;
 if (HAL_ADCEx_InjectedConfigChannel(&hadc1, &sConfigInjected) != HAL_OK)
 {
 Error_Handler();
 }
 /** Configure Injected Channel
 */
 sConfigInjected.InjectedChannel = ADC_CHANNEL_1;
 sConfigInjected.InjectedRank = ADC_INJECTED_RANK_2;
 if (HAL_ADCEx_InjectedConfigChannel(&hadc1, &sConfigInjected) != HAL_OK)
 {
 Error_Handler();
 }
 /** Configure Injected Channel
 */
 sConfigInjected.InjectedChannel = ADC_CHANNEL_2;
 sConfigInjected.InjectedRank = ADC_INJECTED_RANK_3;
 if (HAL_ADCEx_InjectedConfigChannel(&hadc1, &sConfigInjected) != HAL_OK)
 {
 Error_Handler();
 }
 /* USER CODE BEGIN ADC1_Init 2 */
 
 /* USER CODE END ADC1_Init 2 */
 
}

[TDK]

CubeMX just generates code, and the code you posted definitely shows different ADC_INJECTED_RANK_x for each. Could be a problem in the HAL library, but doesn't appear to be.

[Framet]

I'm confused. How does the code show different ADC_INJECTED_RANK's? It does show for version below CubeMX 6.3 but in 6.3 for me at least, it does not show.

In below picture at 1) and 2) there should be

sConfigInjected.InjectedRank = ADC_INJECTED_RANK_x;

Or do I miss something here?

[TDK]

No, that's my mistake for reading too quickly. Your first reply has the correct code.

[Amel NASRI]

Hi @Framet​ ,

Thanks for bringing this issue to our attention.

I added relevant topic (STM32CubeMX) to this question and mention our STM32CubeMX expert @Khouloud OTHMAN​  here so that she can take care to review this.

-Amel

[Khouloud OTHMAN]

Hello @Framet​ ,

First let me apologize for the inconvenience that this regression may cause . You're right, CubeMX doesn't correctly generate MX_ADC1_Init() function: ADC_INJECTED_RANK_x is generated only for Rank 1.

This is reported internally to be reviewed. I'll keep you posted with the updates.

Internal ticket number: 115118  (This is an internal tracking number and is not accessible or usable by customers).

Even though this reply doesn’t directly solve the issue, I’m marking it as Best, since it will help clarify the current situation for other customers with the same question. I will post an update here once the issue has been fixed.

Khouloud.