UART3 BOOT MODE ON STM32H743 WITH STM32CUBPROGRAMMER V2.1.0

[chrisPyres66]

Dear All,

I jump in boot mode with boot0 to high level, and i can test it with dfu USB connexion.

Unfortunately, it does not work with UART3.

I have the TX signal 0x3F coming from computer, but any acknowledgment. In STM32CUBPROGRAMMER, there is : "Error: Activating device: KO. Please, verify the boot mode configuration and check the serial port configuration. Reset your device then try again..."

I use an usb - ttl 3.3v cable which works, and I did not add pull up resistor because the signal is high by default.

Any help would be greatly appreciated.

Thanks,

[chrisPyres66 · Accepted solution]

It works now with stm32cubeprogrammer v2.2.0