[U-Boot-Users] BDI2000 with pxa255

[Paugam Luc]

Hi,

There is a problem with your JTAG link or chain.
The important line is: 
	- TARGET: Bypass check: 0x000000001 => 0x00000000
It says roughly: (as you know, a JTAG chain is let say "a serial link looped") After setting all JTAG controllers into the JTAG chain to bypass mode, I sent a 1 (only 1 bit) and tried to get back this bit ... but in your case without success!

Regards - Luc

-----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: jeudi 20 janvier 2005 15:51
To: u-boot-users at lists.sourceforge.net
Subject: [U-Boot-Users] BDI2000 with pxa255

Hi,

I've connected bdi2000 to the host computer and successfully updated 
firmware and managed to telnet to the bdi. I also adapted cfg file for 
my platform (KK trizeps2). When I power up the target device I get this 
error:
...
- TARGET: target will be restarted in 10 sec
- TARGET: processing reset request
- TARGET: BDI asserts RESET and TRST
- TARGET: BDI removed TRST
- TARGET: Bypass check: 0x000000001 => 0x00000000
- TARGET: JTAG exists check failed
# TARGET: resetting target failed
# JTAG: communication with target failed
- TARGET: target will be restarted in 10 sec
...

Can somebody point me to the possible causes for this behaviour?

PS. Is it mandatory to supply ~RESET pin to BDI? Can I just keep it in 
reset with a jumper closed? Trizeps2 is lacking this pin on JTAG connector.

best 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

	"Aì rén"	|	[Analects XII:22]


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