Discussion:
[UrJTAG-dev] GIT head unable to connect to FTDI232
Johannes Bauer
2012-06-20 13:29:22 UTC
Permalink
Hi list,

I'm having trouble using the current urjtag GIT head
(2f2c7920242addf60b3f498528741812d3c9beda). When using 0.10 I can
connect to by Lattice Devboard with no problem:

$ jtag
UrJTAG 0.10 #1502
[...]
jtag> cable USB-to-JTAG-IF VID=0403 PID=6010
Connected to libftdi driver.

Trying the same with GIT head, compiled with libftdi but without (!)
ftd2xx support:

$ ./jtag
UrJTAG 0.10 #2026
[...]
jtag> cable USB-to-JTAG-IF VID=0403 PID=6010
error: Couldn't connect to suitable USB device.
error: ftdi/ftd2xx error: ftdi_usb_open_desc() failed: device not found

What strikes me as strange is that the error occurs within some ftd2xx
routine, although this is not compiled in. Also, specifically asking for
libftdi has no effect:

jtag> cable USB-to-JTAG-IF VID=0403 PID=6010 DRIVER=ftdi-mpsse
error: Couldn't connect to suitable USB device.
error: ftdi/ftd2xx error: ftdi_usb_open_desc() failed: device not found

Has anybody an idea of why this might be the case?

Best regards,
Joe

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