CubeProgrammer not flashing between 0x08100040 and 0x08100800

[rammit]

Programming bank2 of an STM32H743 starting at 0x0810000 leaves a section unprogrammed between 0x08100040 and 0x08100800. Programming bank 1 works fine.

Using the UI and the CLI version 2.4.0 via the UART. I'm pretty sure I don't have any security bits set. What am I doing wrong? My own flash routine in my boot code in bank 1 programs it fine.

[Tesla DeLorean]

>>What am I doing wrong? 

Hard to know, insufficient data

Are you using .BIN or .HEX files, have you inspected the files?

[rammit]

bin files which look correct. I flash the same files using my my own boot loader and it flashes fine. I inspect the flash memory using CubeProgrammer and IAR.

[rammit]

Has anyone been successful at flashing bank2 on the SMT32H743 ?

[Pavel A.]

STM32H753. Yes, both via Cube Programmer debugger interface and internally ("IAP"). Not tried the UART bootloader.

-- pa

[rammit]

I verified that programming via ST-Link works fine, but UART does not. Has anyone tried UART programming of Bank2 using Cube Programmer?

[Uwe Bonnes]

Is the bin file padded to an 256 bit boundary? Perhaps some padding problem?

[rammit]

The bin file is 256k in size. I could understand if the size was not rounded to a 256bit boundary at the end of the file That it would not programm that last 256bit word, but the section of flash between 0x08100040 and 0x08100800 does not get programmed.

[rammit]

This has been reproduced by ST.