[U-Boot-Users] bdi2000 reset target failed

[U-Boot-Users] bdi2000 reset target failed

[Hinko Kocevar]

Hi,
After good start I'm back to square one in my debugging session. After a 
while and with help on this list I managed to get target resetted and 
did some tests. After a while the same problem appeared - BDI2000 can 
not reset target and fails with message:
- TARGET: processing reset request
- TARGET: BDI asserts RESET and TRST
- TARGET: BDI removed TRST
- TARGET: Bypass check: 0x000000001 => 0x00FFFFFF
- TARGET: JTAG exists check failed
# TARGET: resetting target failed
# JTAG: communication with target failed
- TARGET: target will be restarted in 10 sec

I'm pretty sure that JTAG cable for first target is OK, since it was 
working a while ago, and I also tested BDI2000 with another PXA target 
and the same error emerges there (with this target I have direct 
connection between BDI2000 and target JTAG).

Any help is appreciated...

regards,
hk
-- 
hinko <dot> kocevar <at> iskramedical <dot> si
Hinko Kocevar, embedded systems developer
Iskra Medical d.o.o., Stegne 23, 1k LJ, SLO-EU

	"A? r?n"	|	[Analects XII:22]

[U-Boot-Users] bdi2000 reset target failed

[Neil Wilson]

> -----Original Message-----
> From: u-boot-users-admin at lists.sourceforge.net 
> [mailto:u-boot-users-admin at lists.sourceforge.net] On Behalf 
> Of Hinko Kocevar
> Sent: Monday, February 07, 2005 12:56 PM
> To: u-boot-users at lists.sourceforge.net
> Subject: [U-Boot-Users] bdi2000 reset target failed
> 
> Hi,
> After good start I'm back to square one in my debugging 
> session. After a while and with help on this list I managed 
> to get target resetted and did some tests. After a while the 
> same problem appeared - BDI2000 can not reset target and 
> fails with message:
> - TARGET: processing reset request
> - TARGET: BDI asserts RESET and TRST
> - TARGET: BDI removed TRST
> - TARGET: Bypass check: 0x000000001 => 0x00FFFFFF
> - TARGET: JTAG exists check failed
> # TARGET: resetting target failed
> # JTAG: communication with target failed
> - TARGET: target will be restarted in 10 sec
> 
> I'm pretty sure that JTAG cable for first target is OK, since 
> it was working a while ago, and I also tested BDI2000 with 
> another PXA target and the same error emerges there (with 
> this target I have direct connection between BDI2000 and target JTAG).
> 
> Any help is appreciated...
> 


I know we had some problems getting a bdi2000 to reset one of our own
powerpc boards, slowing the clock rate in the bdi script helped.

Neil

--
Neil Wilson
Airspan Communications Ltd.
Cambridge House, Oxford Road,
Uxbridge, Middx, UB8 1UN, UK.
Tel: +44(0)1895-467265

neilwilson at airspan.com
www.airspan.com 

[U-Boot-Users] bdi2000 reset target failed

[Hinko Kocevar]

Neil Wilson wrote:
> 
> I know we had some problems getting a bdi2000 to reset one of our own
> powerpc boards, slowing the clock rate in the bdi script helped.
> 

I tried several settings for following parameters with no avail:
JTAGCLOCK	6
RESET		3000
TRST		OPENDRAIN
POWERUP		3000
WAKEUP		3000

thanks for the tip.

regards,
hk

-- 
hinko <dot> kocevar <at> iskramedical <dot> si
Hinko Kocevar, embedded systems developer
Iskra Medical d.o.o., Stegne 23, 1k LJ, SLO-EU

	"A? r?n"	|	[Analects XII:22]

[U-Boot-Users] bdi2000 reset target failed

[Matej Kupljen]

Hi

> - TARGET: Bypass check: 0x000000001 => 0x00FFFFFF

I'd say that if the reset works O.K., you should check the 
TDI and TDO lines. It looks like one of them (probably TDO)
is opened (HiZ) or connected to Vcc. 

Regards,
Matej

[U-Boot-Users] bdi2000 reset target failed

[Hinko Kocevar]

Hinko Kocevar wrote:
> - TARGET: Bypass check: 0x000000001 => 0x00FFFFFF
> - TARGET: JTAG exists check failed
> # TARGET: resetting target failed

Hmm, somehow config file on tftp has been truncated to zero and 
replacing it with fresh copy solved the problem.

-- 
hinko <dot> kocevar <at> iskramedical <dot> si
Hinko Kocevar, embedded systems developer
Iskra Medical d.o.o., Stegne 23, 1k LJ, SLO-EU

	"A? r?n"	|	[Analects XII:22]