Why can't I see the SFRs for my STM32C551RCT6?

3 replies
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I'm in debug mode in STM32CubeIDE.

On the SFRs tab in the upper right corner, I want to enable UART4 and check the register status.

But I only see UART-related items: LPUART/USART1/USART2/USART3.

Why can't I find UART4?

My MCU is an STM32C551RCT6.

I'm very certain this IC has UART4

STM32C5 series

mƎALLEmBest answer

ST Technical Moderator

Hello,

Issue has been fixed and validated internally. The fix will be available in the next revision of the SVD file.

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.

mƎALLEm

ST Technical Moderator

Hello @Ingtsun-Tan and welcome to the ST community,

I’m escalating it for analysis and eventual feedback. Internal ticket number for follow-up: CDM0064667

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.

mƎALLEm

ST Technical Moderator

Hello @Ingtsun-Tan and sorry for the late answer.

Indeed the team confirmed that the UART4 SFR registers are missing from the SFR view. In contrast, the SFR registers for LPUART, USART1, USART2, and USART3 are present and accessible. The issue will be fixed.

Hope that helps.

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.

mƎALLEmBest answer

ST Technical Moderator

Hello,

Issue has been fixed and validated internally. The fix will be available in the next revision of the SVD file.

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.

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