mean00
mean00
Just in case (you can use a cheap chinese stlinkv2 clone), they work fine with openocd: * Connect only 3 pins of the stlinkv2 to the board (they are easy...

i think you can reflash the hex file also that way load foo.hex but not 100% sure
https://github.com/mean00/lnDSO150/releases You can try the jytech 2.2 elf one, should work for you DONT FORGET TO FLASH THE BOOTLOADER FIRST!
@marianomd i'm unsure of the status so far. It looks like a hw issue with the board. Am i missing something ?
If you hexdump the beginning it might give a hint xxd -g1 yourbinfile | head -5 for example
The startup function is at address 0x08 00 41 d5 (+16 kB) I'd guess the bootloader is either 4kB or 8kB and the binary must be flashed at address 0x08...
Could you attach the file ? I can probably make it work quickly
[fnirsi_loader.zip](https://github.com/mean00/lnDSO150/files/11857898/fnirsi_loader.zip) Confirmed, the offset is 0x4000 The attached loader works for me : - Flash the loader at address 0x8000000 - Flash the fnirsi binary at address 0x80004000 then it...
probably the MCU ( CH32F103) It is a bit of a pain to replace but a STM32F103/CH32F103 or GD32F103/303 wil do the job