Re: [OpenOCD-user] FT2232 device

[Trampas S. <tr...@gm...>]

The libusb issue is resolved. Issue was I defined descriptor in config file
that did not match the driver.

The adapter I have uses tristate drivers to switch the signals for SWD. I
moved adapter to a JTAG board and it is not working there either. I am
debugging hardware now...

I have checked pin out but have not found an issue, I will scope the
signals next...

On Aug 1, 2016 4:10 PM, "Paul Fertser" <fer...@gm...> wrote:

> On Mon, Aug 01, 2016 at 02:02:59PM -0400, Trampas Stern wrote:
> > Debug: 260 2219 ftdi.c:1092 ftdi_swd_switch_seq(): JTAG-to-SWD
> > Debug: 261 2225 ftdi.c:946 ftdi_swd_run_queue(): Executing 2 queued
> transactions
> > Debug: 262 2235 ftdi.c:978 ftdi_swd_run_queue(): JUNK DP read reg 0 =
> ffffffff
>
> This looks like hardware issue, SWD just doesn't work properly for
> you, the target doesn't respond at all. How is your debug adapter
> supposed to handle SWD specifics?
>
> Regarding your libusb issues, can you please clarify what OS version
> you're using, whether or not you succeeded to get the cited output
> with WinUSB just for a single interface and regular FTDI VCOM driver
> for the other, and can you please show the exact modification that
> made it work in diff -u form?
>
> --
> Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software!
> mailto:fer...@gm...
>