Thanh Nguyen wrote:

Hi all,

I'm in internship. It is the first time I use Uboot. I have to load the uboot binary in the flash (AMD 29VL461DH - 8MB - PPC 405GP) with vision Probe. But I got this error message from vision probe each time it tried to load the binary : "Unable to communicate with the emulator. Please check the physical connection and use the terminal windows..."

I use the lastest version of Uboot : 1.1.4. With the old binary (uboot 0.4.0), it works correctly. Thats why I think there is something wrong in my configuration walnut.h. I will appreciate a lot if anybody can give me a solution of this issue.

Thanks a lot.

NT

If it truly works with 0.4.0 and not with 1.1.4, I would speculate that your memory map with 1.1.4 is not compatible with your hardware... either your 1.1.4 image is in a different location or it is bigger.

Check your image sizes and locations (objdump for elf, less (the program ;-) for S-record files, xxd and some luck if all you have is a VisionProbe binary lump).

gvb