Nokia JTAG debug - GSM-Forum

tudor · 06-02-2006, 09:36

Has anyone succedded to debug a nokia with JTAG?
I linked the jtag to computer from a 5130 but there are 2 devices on the chain and the software from pc doesnt recognize them

ben_whiteus · 06-02-2006, 10:36

if you managed to detect that there are two devices in the JTAG chain, then you are quite close. One of the device is the ARM cpu, and the other is the DSP. I guess you are just lacking a s/w that can handle multiple chip in 1 chain.

Friendship · 06-02-2006, 18:14

I didn't succes connect to a 8310. anyone else?

Good Luck...

Uzo Daddy · 06-08-2006, 03:00

Please how does this work

ben_whiteus · 06-08-2006, 05:35

Quote:

Originally Posted by Friendship

I didn't succes connect to a 8310. anyone else?

Good Luck...

Have a look at http://forum.gsmhosting.com/vbb/show...1&postcount=55 and http://forum.gsmhosting.com/vbb/show...&postcount=111.

PM or email me if you have any success.

ben_whiteus · 06-08-2006, 05:38

Quote:

Originally Posted by ben_whiteus

if you managed to detect that there are two devices in the JTAG chain, then you are quite close. One of the device is the ARM cpu, and the other is the DSP. I guess you are just lacking a s/w that can handle multiple chip in 1 chain.

Just to add, alternatively, you can play around with EMU0 and EMU1 pin to select the chip to be included in the JTAG chain.

Zaihtam · 06-09-2006, 18:21

Hmm.... whisper from master Dejan,

Good Luck...

tudor · 06-14-2006, 00:18

unfortunately i don't have time, but when i will have some time to spare i'll link the emu bits and try, and if not i have an FPGA on my side

i'll just make it look from pc side "as if" there was only the arm7 on the chain. it will get dirty and will work slower, but it will work

unfortunately if i make a solution with fpga i'll be the only user

i would like to make something more general to be used by more programmers out there

06-02-2006, 09:36	#1 (permalink)
tudor Junior Member Join Date: Sep 2004 Age: 42 Posts: 13 Member: 80879 Status: Offline Thanks Meter: 0	Nokia JTAG debug Has anyone succedded to debug a nokia with JTAG? I linked the jtag to computer from a 5130 but there are 2 devices on the chain and the software from pc doesnt recognize them

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06-02-2006, 10:36	#2 (permalink)
ben_whiteus Crazy Poster Join Date: Jun 2005 Posts: 54 Member: 152989 Status: Offline Thanks Meter: 11	if you managed to detect that there are two devices in the JTAG chain, then you are quite close. One of the device is the ARM cpu, and the other is the DSP. I guess you are just lacking a s/w that can handle multiple chip in 1 chain.

06-02-2006, 18:14	#3 (permalink)
Friendship Freak Poster Join Date: Apr 2005 Age: 52 Posts: 150 Member: 141127 Status: Offline Thanks Meter: 6	I didn't succes connect to a 8310. anyone else? Good Luck...

06-08-2006, 03:00	#4 (permalink)
Uzo Daddy Freak Poster Join Date: Jul 2005 Posts: 186 Member: 157520 Status: Offline Thanks Meter: 3	Please how does this work

06-09-2006, 18:21	#7 (permalink)
Zaihtam No Life Poster Join Date: Dec 2004 Location: 0x001FD00 Posts: 1,285 Member: 98572 Status: Offline Thanks Meter: 36	Hmm.... whisper from master Dejan, Good Luck...

06-14-2006, 00:18	#8 (permalink)
tudor Junior Member Join Date: Sep 2004 Age: 42 Posts: 13 Member: 80879 Status: Offline Thanks Meter: 0	unfortunately i don't have time, but when i will have some time to spare i'll link the emu bits and try, and if not i have an FPGA on my side i'll just make it look from pc side "as if" there was only the arm7 on the chain. it will get dirty and will work slower, but it will work unfortunately if i make a solution with fpga i'll be the only user i would like to make something more general to be used by more programmers out there