ADC do not work with 1.10 after migration.

[GerHebert]

The clock "to ADC (MHz)" is grey in clock configuration. Don't see prescaler field in configuration. Plus it remove PLL **** configuration in main.c.

  /* Configure the system clock */
  SystemClock_Config();
 
//****** This below have been remove from my last commit! *********
/* Configure the peripherals common clocks */
  PeriphCommonClock_Config();
// ******
 
//****** And this:
/**
  * @brief Peripherals Common Clock Configuration
  * @retval None
  */
void PeriphCommonClock_Config(void)
{
  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
 
  /** Initializes the peripherals clock
  */
  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_ADC;
  PeriphClkInitStruct.PLL2.PLL2M = 4;
  PeriphClkInitStruct.PLL2.PLL2N = 9;
  PeriphClkInitStruct.PLL2.PLL2P = 2;
  PeriphClkInitStruct.PLL2.PLL2Q = 2;
  PeriphClkInitStruct.PLL2.PLL2R = 2;
  PeriphClkInitStruct.PLL2.PLL2RGE = RCC_PLL2VCIRANGE_3;
  PeriphClkInitStruct.PLL2.PLL2VCOSEL = RCC_PLL2VCOMEDIUM;
  PeriphClkInitStruct.PLL2.PLL2FRACN = 3072;
  PeriphClkInitStruct.AdcClockSelection = RCC_ADCCLKSOURCE_PLL2;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
}
 

What is the workaround?

[TDK]

Attaching an IOC that replicates the problem would be helpful. Might be a bug, might be some other explanation.

Which ADC? Which chip?

[GerHebert]

I attach the ioc.

Chip: STM32H750VBTx

Since 6.5.0 (FW 1.10), all ADC's into the chip do not have their clock configured correctly.

With CubeMX 6.4.0 (FW 1.9), the To ADC was blue and ADC's clock were configured correctly.

[GerHebert]

I just started a project from scratch with STM32H750VBTx, I haven't been able to activate ADC clock yet. Pretty easy to reproduce...

[Amel NASRI]

Hi @GerHebert​ ,

This seems to be the same issue as reported in the following 2 questions:

• ADC not working after migration to CubeIDE v1.9.0 and SDK v1.10.0
• STM32H755ZI-Q CubeMX Does not generate ADC clocks

Internal ticket number: 124251 (This is an internal tracking number and is not accessible or usable by customers).

@Khouloud OTHMAN​ can confirm or clarify more this issue.

-Amel

[Khouloud OTHMAN]

Hi @GerHebert​ ,

You're right, the issue is reproduced and confirmed.

Actually, a regression was detected with the latest STM32CubeMX 6.5.0 version: Clock Prescaler parameter removal from the GUI and the non-activation of ADC Clock Mux although the ADC is configured.

As mentioned by @Amel NASRI​ , this misbehavior was already reported internally to be fixed as soon as possible.

I'll keep you posted with the updates.

Sorry for any inconvenience that this may cause.

Khouloud.

[R Piacenzia]

I have the same issue. Is there an ETA for this fix?

[TDK]

Historically, it has been several months between CubeMX releases, and one just came out recently.

[Tim Goll]

36 days have passed and this is still broken, wow. I just spent two days trying to figure out why my project is suddenly broken.

For anyone wondering: downgrade to version 1.7.0. You have to change you ioc file version though:

[ADunc.1]

I just came across this problem... Any idea when a fix will be released?