STM32CubeProgrammer fail with external loader for H750

[CGome.16]

I have a STM32H750 with external flash memory. An external loader was developed from the examples of the STM32CubeProgrammer. But I cannot make it working.

When I try to use it in CubeProgrammer errors such conection to device (0x450) is lost, or 0x0.stldr appear. Or sometimes Device not supported. I have equivalent solution for STM32F750 and works fine.

I have tried do nothing in functions (init, read, write, ..) and return 1, and still happens!

STM32CubeProgrammer 2.1 (linux)

ST-Link from NUCLEO H743ZI firmware version V2J33M25 (same happens whit others discoveries).

What is wrong!?

best regards,

César Gomes.

[willcfj]

CGome: I have been struggling with the sme thing too for quite a while and finally got something working. Right now it only works with the IAR7 toolset (free version), but at least it works. Here is the thread with the project and app note.

https://community.st.com/s/question/0D50X0000CArtpvSQB/trying-to-write-an-stlink-qpsi-driver-for-serial-nor-device

will