Hello,
I'm working with STM32F429ZI nucleo board, and I would like to flash my program using UART (USART1 or UART3 via a usb to ttl converter) instead of ST-Link.I understand that STM32 has a built-in bootloader that can be used for flashing via UART, but I'm not sure about the exact steps or tools required.
when I connect the uart with STM32CubeProgrammer an error message come :-
13:58:51:175 : Error occured while sending Init command.
13:58:51:175 : Error: Activating device: KO. Please, verify the boot mode configuration and check the serial port configuration. Reset your device then try again......
settings I did:
1.the boot0 pin connected with 3v3 and boot1(pb2) connected to ground
2.uart3 pins PB10,and pb11 used for tx and rx respectively
Here’s what I’ve tried / what I need help with:
1. How to connect the UART pins correctly for flashing?
2. What BOOT0 and BOOT1 pin settings are needed?
3. What software can I use on the PC side (e.g., STM32CubeProgrammer or any alternatives)?
4. What file format should I use (.hex or .bin)?
5. How to verify if the STM32 is actually in bootloader mode?
Any help or step-by-step guide would be appreciated.
