How do I load an earlier version of the MX program? The current version does not generate code right like the previous version did.

[KiptonM]

I have been using the DMA for UART transmit for months without problem. The MX program is not generating the code for DMA configuration anymore. It used to work. I have other problems with the current version and I am tired of all the "it will be fixed in the next version".

[KiptonM]

Actually it is the plug in for the STM32CubeIDE that I am using. I need the code generator to work right.

[Semer CHERNI]

Hello @KiptonM​ 

First let me thank you for having reported.

I created a little program with the CubeIDE 1.9 which activate the UART and the DMA and it generate correctly the code also I am able to send data with UART and DMA.

P.S I used an stm32h743 MCU.

Could you please precise on which MCU you have observed this misbehavior ?

Also, it will be helpful if you attach you .ioc file for further check from my side.

Thanks in advance.

Semer.

[KiptonM]

It worked on the STM32G031 but did not wok on the STM32G051K8T.

I found the error, that made me want to go back, it was not setting up the correct function for the Pin. It was Alternate Function 0 when it should have been Alternate Function 1 on the UART1 transmit pin. Receive was O,K, and I believe UART2 was O.K.

[Semer CHERNI]

I could reproduce the same issue with older version from CubeMx.

Fortunately the latest version 6.6.1 generate the Init code with the right alternate function for the UART1_Tx.