[Openocd-development] USB bulk write failures when using FT2232H dongle

[Dimitar D. <di...@gm...>]

Hi,

I'm trying to debug SAM9-L9260 board /AT91SAM9260 chip/ using the latest GIT openocd checkout, FT2232H-based dongle and libftdi-0.16. I'm getting the following error when issuing "reset init":

Error: 228 7449 ft2232.c:419 ft2232_read(): couldn't read the requested number of bytes from FT2232 device (0 < 6)

After increasing the FT2232 timeouts (patch attached) the "reset init" command completed successfully.

Then I tried to load an image into the internal SRAM but I got "usb bulk write failed". A complete debug log is attached.

I have an AMD Athlon XP 1900+ machine. The FTDI dongle is directly attached to the PC.

Any suggestions what might be the problem?

Regards,
Dimitar