2024-10-31 03:17 AM
Hi,
I have a custom board with a STM32L4 powered at 1.8V. I program it without problems with a STLINK-V3MINIE.
Now I want to program it with the stlinkV2 of the NUCLEO -L4R5ZI-P (I have cut it, removed CN4 and connected pins 1,2,3,4 and 5 to CN5):
I can connect and read the memory, but if I try to program, the flash is erased, but not written and the IDE shows this error:
What could be the problem?
Thank you very much!
2024-10-31 03:28 AM
The STLINK-V3MINIE supports 1.65 to 3.60 V targets.
https://www.st.com/en/development-tools/stlink-v3minie.html
From the schematic, the ST-Link on that Nucleo board is 3V3 only.
2024-10-31 06:36 AM
Hello Andrew,
I assume then, that I can't program external boards powered at 1.8V with the STLINKV2 of the NUCLEO.
Thanks a lot for the clarification.
Regards
2024-10-31 07:03 AM
@Ger wrote:I assume then, that I can't program external boards powered at 1.8V with the STLINKV2 of the NUCLEO.
Indeed.
The standalone ST-Link V2 does support 1.65 V to 3.6 V targets.