[En-Nut-Discussion] amontec jtagkey and openocd not working

ml mludwig at adc-elektronik.de
Fri Sep 7 09:13:40 CEST 2007


Hello,

long time ago but now the problem is solved.
with the new turtelizer2 and a new ethernut3 board i tried again to debug
with insight.
at first i get the act. openocd source for testing.
installed all under winXP - all worked well.

than i tried under vmware 5.0 and w2k (all my programming i do in vm´s)
get the same problem like last year - sometimes the FT-Read failed to get
the amount of bytes needed. seems to be randomly.
I found a function FT_SetLatencyTimer setting the timer always to 2ms.
FTDI dcuments say that other ftdi chips use 16 msec fixed (why??)

i set it to 10 msec and the problem is gone away.

maybe it helps someone else

Martin
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