Cubemx & Stm32U031

[KJeps.3]

Inside Cube config, i do not get the other internal connected pins on pin 14, only PA8... in older versions it was available.

The chip is STM32U031F8...

What do i do wrong.. i need to use the uart_tx function on pin 14...

Thank you

Old version from Cubeide...

New version from Inet : 6.16.1

[Souhaib MAZHOUD]

Hello @KJeps.3 

Have you activated USART? Could you please describe the steps that led to this issue or attach an IOC file?

KR, Souhaib

[KJeps.3]

Hi,

I just created the project in freshly installed cubemx, and pushed the pin... the 2 other IO pin connections do not pop up...

I have now tried to enable USART, seems not to change anything...

For pin PA5 it seems to work ok to show more IO:

[Souhaib MAZHOUD]

Hello @KJeps.3 

To use the alternate functions of PA9 and PA10, you can use the remapping option under SYS as follows:

As it is possible to use PA9 instead of PA11 and PA10 instead of PA12. (you can use USART1_TX with pin15)
For Pin14 I will check internally with dedicated team to investigate the missing of the other function.

KR, Souhaib

[KJeps.3]

Hi,

I have to use pin 14 as the HW is already made...

/Kasper

[Souhaib MAZHOUD · Accepted solution]

Hello @KJeps.3 

I have raised this issue internally to the dedicated team for fix, (Ticket 227473 This is an internal tracking number and is not accessible or usable by customers.)
As a temporary workaround, I suggest that you copy the generated code of USART from the old project or to add this code manually to stm32u0xx_hal_msp.c :

void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{
.
.
   /* Peripheral clock enable */
    __HAL_RCC_USART1_CLK_ENABLE();
    __HAL_RCC_GPIOA_CLK_ENABLE();


  /* USER CODE BEGIN USART1_MspInit 1 */
    GPIO_InitStruct.Pin = GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  /* USER CODE END USART1_MspInit 1 */

 Also ensure to keep your custom code inside /* USER CODE BEGIN ... */ / /* USER CODE END ... */ so that CubeMX won’t overwrite it.

BR, Souhaib