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[Resolved] USART Tx pin sinks rx pin. HAL UART bug?

Edit: I found the problem, and it is of course my own fault. Careful reading of the transceiver chip datasheet reveals that the Rx pin follows the Tx pin by design on some models, including mine. Leaving this post up for posterity. I'm having an issu...

AntonL by Associate
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Clarify stack management on STM32H7 / cortex M7

Hello,I'm a bit confused about stack management on Cortex M7.In my SW I only use the MSP.I understood that the MSP can only be modified with a MSR instruction. However the SP can be modified with a "simple" LDR instruction.Does that mean that when I ...

Gpeti by Senior II
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Resolved! AN6091 ('L0->'U0 migration) comments

This is not a discussion on the 'U0 as such (that'd need some time to sink in); just comment on the 'L0->'U0 migration document, AN6091. It's a very detailed and extensive document, and following items are just relatively insignificant minor issues/t...

Bootloader to Main Appilication - SRAM Cleaning

hi,how to clean SRAM before jumping to main application from bootloader .In the SD card boot loader code we use local , global  & static variable and what will happen to these variables during the transition from boot loader to main application .how ...

MMARI.1 by Senior
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Resolved! STM32H7B3I-DK - LCD init through .ioc file does not work

As I mentioned earlier I am trying to show red color on display screen this time using HAL_drivers. I attached a video on my one drive of me configuring a .ioc file and I builded it with 0 errors but when I flashed it to hardware, display module does...

richi by Associate III
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Which code in SRAM4 for LPBAM?

Hello,In the example projects for LPBAM from ST, it is necessary to switch the RAM address to the SRAM region. This is because LPDMA has in Stop2-Mode only access to SRAM4.If I also want to use the RAM, which part of LPBAM (or maybe other parts) must...

JoachimO_0-1710411635664.png
JoachimO by Associate II
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STM32F103C8T6 pin multiplexing problem

hello,STM32F103C8T6 enables SPI1, but does not use MISO pin (PA6), can this pin reuse other functions? For example, timer function.Also, the PWM output can be observed in the software simulation, but there is no PWM output in the actual test. Is ther...

112233 by Associate II
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