CubeMX: ADC and DMA initialized in the wrong order

[DWann]

STM32L010C6Tx

STM32CubeMX V 5.4.0

FW_L0 V1.11.2

When creating a new project that used the ADC with the DMA and some unrelated peripherals, cubeMX will generate the following initialization list in main:

  /* Initialize all configured peripherals */
  MX_ADC_Init();
  MX_DMA_Init();
  MX_TIM2_Init();
  MX_TIM21_Init();
  MX_GPIO_Init();
  /* USER CODE BEGIN 2 */

This is a bug - MX_DMA_Init() should be called before MX_ADC_Init(). The ADC init function will attempt to write the the DMA CCR1 register, but will fail because the DMA has not yet been initialized.

[waclawek.jan]

A bit late to the club...

https://community.st.com/s/question/0D50X0000Bmob3uSQA/dma-not-working-in-cubemx-generated-code-order-of-initialization

JW

[Nesrine.JLASSI · Accepted solution]

Hello @DWann​ 

Please try with the last STM32CubeMX, it correct the issue.

Best regards,

Nesrine

[Ondre]

Hello!

I've still encountered the same bug in STM32CubeIDE Version 1.7.0 for the STM32L100C6. It is however possible to change the initialization order manually inside the advanced settings.

Best regards

André

[waclawek.jan]

@Community member​ ,

Was this a new project, or you opened an older project with new version of CubeMX?

I understood that the problem was fixed some year ago, but the old .ioc files contain the order established by the old, buggy version of CubeMX.

JW

[Ondre]

Completely new (a few weeks old maybe) project from scratch, but I'll try again, just to be sure.

[Stephen28]

I just burned a day figuring this one out.

This project was created about 2 months ago. STM32H743.

Ondre, thanks for the hint that I can change the order in CubeMX Advance Settings.

[waclawek.jan]

https://community.st.com/s/question/0D53W000011uIPgSAM/adc-dmahandle-is-0

[Robin Aproskie]

This is still a problem in CubeIDE 1.8.0 and FW_L0 1.12.1 took me 2 weeks to find the Issue.