On Thu, Oct 31, 2013 at 1:53 AM, Jens Bauer <[email protected]> wrote:
> Hi all.
>
> I've wanted to use the FTDI driver since I first heard of it.
> But due to the other problems I've been though, I thought they were the
> cause that the FDTI driver did not work for me.
> I'm now using the JTAG-lock-pick Tiny 2 (but I hve the exact same problems
> when using Olimex ARM-USB-TINY-H)
>
> So far, I'm past the worst big-endian problems, and also the problems with
> the LPC43xx acting up (thanks for the fix, Nemuisan)
>
> The following line works:
> $ openocd -f interface/jtag-lock-pick_tiny_2.cfg -f
> Flashing/Board/Board.cfg -c "flashNow TestFile.elf"
>
> But this line does not:
> $ openocd -f interface/ftdi/jtag-lock-pick_tiny_2.cfg -f
> Flashing/Board/Board.cfg -c "flashNow TestFile.elf"
>
> (There seem to be no difference when I add 'sudo ' in front of openocd)
> Now, it appears that noone else are seing this problem, so it might be a
> Big Endian issue, but I haven't spotted anything in the sources yet.
>
> What would most likely cause this to go wrong (eg. approximately where
> should I look) ?
Interesting. I would be surprised if there were endianness problems in the
ftdi driver but not in the ft2232 driver. The driver mostly handles byte
streams. I've tried setting up a BE virtual machine to test but I currently
haven't succeeded due to problems with the host USB controlller driver
acting up. If anybody could tell me an easy way to test or know a *cheap*
and commonly available BE machine with USB that runs a modern linux with
little or no setup, please do.
I would suspect that the interface definition in
interface/ftdi/jtag-lock-pick_tiny_2.cfg doesn't match hardware, but since
you have the same problem with the Olimex hardware, that's unlikely the
problem.
/Andreas
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