About LeonidP

LeonidP · 2024-04-23

Hello I got two boards dead within one day. I used the first board for a while and it worked until I started to communicate via USART/RS232. After I faced with such a problem, I replaced the board with a second one and immediately got same result.Des...

LeonidP · 2024-05-17

A small question.I see in my project (in ioc-file): RCC.SupplySource=PWR_LDO_SUPPLY, whereas it should be PWR_DIRECT_SMPS_SUPPLY. If I create a new project for the same board, the value PWR_DIRECT_SMPS_SUPPLY is by default. But in the working project...

LeonidP · 2024-05-06

Could be that I recovered somehow. Key steps:1.Yes, I need to use the external power supply (5 VDC)2. In project properties, run/debug settings .... GDB connection settings, frequency of ST-LINK debug probe to be set to, say, 1000 kHz instead of "aut...

LeonidP · 2024-04-30

Let me add some details to what I found. Once I erase the flash and switch SW1 back to default state (state 0), the code of M4 is loaded to flash somewhere in high addresses. The first non-FF byte address is 0x080FE407. M4 main () actually has nothi...

LeonidP · 2024-04-25

Note that I had no such problem in main() earlier. Before I had to erase flash.

LeonidP · 2024-04-25

Tesla DeLorean, Thanks a lot! Yes, switching of a SW1 to the position 1 (BOOT0) followed by the flash erasure indeed solves the problem on both boards, but not completely.I indeed became able to upload new executables and debug them.But there are sti...

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Two boards STM32H757I-EVAL seem dead after USART1 (CN2) to RS232 connection

Re: Two boards STM32H757I-EVAL seem dead after USART1 (CN2) to RS232 connection

Re: Two boards STM32H757I-EVAL seem dead after USART1 (CN2) to RS232 connection

Re: Two boards STM32H757I-EVAL seem dead after USART1 (CN2) to RS232 connection

Re: Two boards STM32H757I-EVAL seem dead after USART1 (CN2) to RS232 connection

Re: Two boards STM32H757I-EVAL seem dead after USART1 (CN2) to RS232 connection