Hi,
I've bought the "OpenOCD USB" JTAG programmer:
http://www.embedded-projects.net/index.php?page_id=256
It has the usual FT2232, so I thought it should be supported, but there are
some strange problems...
I've compiled the latest openocd from SVN and used libftdi-0.15 for
FTDI-support.
In principle it works for my ARM11-target. That means JTAG detection,
register fiddling, flash probing and even the slow CFI flashing are OK.
But when using working_area und thus the "fast" CFI-flash mode is used,
it only gives these errors:
> flash write_bank 0 file.bin 0x100000
<a few seconds delay>
ftdi_write_data: usb bulk write failed
couldn't write MPSSE commands to FT2232
ftdi_write_data: usb bulk write failed
etc.
Exactly the same process with a parport programmer works, so it looks not
like a deeper JTAG/ARM problem.
For ft2232_layout, i've tried jtagkey and the olimex-thing, both show the
same behavior.
The error message looks like something in the communication to the FT2232
fails, but I have no clue where the problem can be.
I guess that more people are using a FT2232-based programmer, is this a
known problem?
--
Georg Acher, ac...@in.tum.de
http://www.lrr.in.tum.de/~acher
"Oh no, not again !" The bowl of petunias
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