NULA Development Board STLink connection fails in CubeProgrammer after firmware update

TECHNICAL SUPPORT NULA Development Boards
1

Customer:

I cannot connect the STLink device in CubeProgrammer. Some solutions suggested doing a firmware upgrade - then I encountered a message that ST Link is not in DFU mode. I resolved this by disconnecting and reconnecting it. After that, it was possible to start the upgrade, but after the upgrade “reaches the end”, I get an error. I tried doing the firmware upgrade via the older STM32 STLink Utility and succeeded. After that, I can connect with the STLink programmer. I disconnected, then tried to establish a connection in CubeProgrammer, but still the same error. What should I do?

Original message (Croatian)

Vezano za ticket #31138

@IvanFadiga

Ne mogu u CubeProgrammeru povezati STLink uređaj.

Neka od rješenja bila su da odradim firmware upgrade - Tada sam naišao na poruku kako ST Link nije u DFU modu. To sam rjesio tako sto sam iskopčao i ukopčao nazad. Nakon toga moguće je pokrenuti upgrade (Screenshot-2 hosted at ImgBB — ImgBB), no nakon što upgrade “dođe do kraja”, imam sljedeći error (Screenshot-1 hosted at ImgBB — ImgBB).

Probao sam Firmware upgrade napraviti preko zastarjelog STM32 STLink Utilitya(Screenshot-4 hosted at ImgBB — ImgBB) i uspio sam.

Nakon toga, mogu se povezati (Screenshot-6 hosted at ImgBB — ImgBB) sa STLink programerom.

Disconnectao sam se, a zatim probao ostvariti konekciju u CubeProgrammeru, no i dalje isti error (Screenshot-7 hosted at ImgBB — ImgBB).

Što mi je činiti?

Lp, [name removed]

Originally submitted via email support on 18 March 2022. Migrated to the forum for community visibility.

2

Soldered Support:

It can happen that the STM32 STlink Utility works and the firmware is updated, but then it does not work in STM32 CubeProgrammer. If it says it is not in DFU mode, you just need to disconnect and reconnect it to reset it. You should do the firmware upgrade with STM32 CubeProgrammer because Arduino IDE uses it as well. Have you tried using a different USB port? It seems to me that STLink lost connection with the computer. It could be a problem with the USB port being incorrect (having a poor connection) so STLink gets disconnected. After you do the firmware update from any program, try connecting the STM32 board to STLink and at least read the memory. If you can do that with STM32 CubeProgrammer, then it will work from Arduino IDE.

Original message (Croatian)

Zna se dogoditi da sa STM32 STlink Utility radi i kada se napravi update firmware-a, ali onda ne radi u STM32 CubeProgrammer-u. Ako vam izbaci da nije u DFU modu samo ga je potrebno isključiti i ponovno uključiti da se resetira. Svakako bi trebali napraviti firmware upgrade sa STM32 CubeProgrammer-om jer njega koristi i Arduino IDE.

Jeste pokušali koristiti drugi USB port jer mi se čini da STLink izgubi vezu s računalom. Znalo je biti problema da je USB port neispravan (ima lošu vezu) pa se STLink izgubi. Nakon što napravite update firmware-a iz bilo kojeg programa pokušajte spojiti STM32 pločicu na STLink te barem pročitati memoriju. Ako uspijete to s STM32 CubeProgrammer-om onda će vam raditi iz Arduino IDE.