Problem to flash throught USB

[MLam]

Hello everyone,

I have made a custom board with STM32L072CBT6. All works fine when i use my board and program her with STLink.

I would try to program my board through USB, to do that i have a uUSB connector on my board connected to my uC.

To flash, i use STM32CubeProgrammer.

1 - I succeed to detected my bootloader on my peripheral (press reset and boot0 button)

2 - I succeed to acces to my board through USB with STM32CubeProgrammer

3 - I chose my .elf file to download and when i try to download, i have this folling error :

15:24:46 : Error: Write failed at address: 0x8001000 

 15:24:46 : Error: failed to download Segment[0]

 15:24:46 : Error: failed to download the File

"Write failed address" change when i try multiple time to download and sometimes it's works.

Do you have advice help my about this problem ?

Thanks for your help,

Best regards,

Lam

[MLam]

Hi,

I have test on an other PC with the same board and the same cable and same software. And no problem meet during download. So for this moment i investigate to understand what can cause this problem on my PC.

If you have advice, i'm intresting.

Best regards,

Lam