Flash STM using 1 USB - STM32H755

isaacjack · ‎2024-03-28

Hi there,

I am working on a project using the STM32H755 zi that has 1 USBC port, can we use the same port for uploading the code, UART Communication and powering the device instead of using ST-LINK? Or is there any way to use ST-LINK for communication?

Thanks for any help.

Tesla DeLorean · ‎2024-03-28

You could use the ST-LINK VCP to communicate with loader code on the H755, and upload firmware via a terminal supporting X/Y-MODEM. Perhaps look for some of the STM32 IAP examples.

Not sure it's connected to the UART supported by the System Loader, see AN2606 / AN3155

Otherwise you might try the other USB connection

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View solution in original post

Tesla DeLorean · ‎2024-03-28

You could use the ST-LINK VCP to communicate with loader code on the H755, and upload firmware via a terminal supporting X/Y-MODEM. Perhaps look for some of the STM32 IAP examples.

Not sure it's connected to the UART supported by the System Loader, see AN2606 / AN3155

Otherwise you might try the other USB connection

Tips, Buy me a coffee, or three.. PayPal Venmo
Up vote any posts that you find helpful, it shows what's working..

FBL · ‎2024-03-29

Hello @isaacjack

If you need a Flash disk to upgrade your device, you can refer to AN3354 as an example.

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