Hello,
Any idea on this JTAG problem on Calao USB A9263 ?
Thanks!
Thomas
Le Mon, 31 Oct 2011 23:52:18 +0100,
Thomas Petazzoni thomas.petazz...@free-electrons.com a écrit :
Hello,
(Resending to the list @berlios.de since the list
@lists.sourceforge.net doesn't seem to work)
I am trying
1. Try changing the speed of JTAG to be 1/8th of core speed.
2. Try doing reset halt from the telnet first.
3. Make sure your board has the same reset configuration as you pass to OpenOCD
- separate lines of TRST and SRST.
4\/3!!
___
Hello,
Thanks for your feedback!
Le Thu, 03 Nov 2011 09:27:49 +0100,
freddie_chopin freddie_cho...@op.pl a écrit :
1. Try changing the speed of JTAG to be 1/8th of core speed.
I have tried with adapter_khz 5 or jtag_rclk 2, and not better. Since
the JTAG is capable of finding the tap/device,
Hello,
Le Thu, 03 Nov 2011 11:01:00 +0100,
freddie_chopin freddie_cho...@op.pl a écrit :
What's the core speed of your chip?
It's a AT91SAM9263 at 180 Mhz.
Probably something high, so try high speed of JTAG - 1000 kHz (1MHz)
- 5kHz is really slow, rclk 2 should give something like 2MHz
W dniu 2011-11-03 11:08:39 użytkownik Thomas Petazzoni
thomas.petazz...@free-electrons.com napisał:
You may also try reset_config srst_pulls_trst or other
configurations...
Not better, unfortunately. Still the exact same behaviour. Here is my
interface file:
none srst_pulls_trst
Le Thu, 03 Nov 2011 11:21:33 +0100,
freddie_chopin freddie_cho...@op.pl a écrit :
Notice that first you set srst_pulls_trst and then another config
file sets that back to separate. Try adding the command to openocd
call: openocd -f ... -c reset_config trst_and_srst srst_pulls_trst
Ah, right.
);
Sorry, no more ideas from my side... Maybe someone else will be able to help
you.
Generally the code you are running on the chip can be somehow blocking JTAG
access so, if you can, try halting chip with empty flash. I think (I'm not
sure) that issuing poll command from telnet performs the
