bendoverdave
07-21-2004, 07:20 AM
I need some help...
I'm trying to JTAG a 2800 to backup the TSOP in case of an future ECM.
NOW...
I get all FF's with the old jkeys and the recent one. I need a once and for all clarification on where the JTAG connections go on the pads.
1 2 3 4 5 6 7
O O O O O O O
------------------------ -> GND
1 = Not used
2 = TMS
3 = TCK
4 = TDI
5 = TDO
6 = TRST
7 = Not used
What about the ground wire from the JTAG? Is it used at all?
I'm using the JTAG I built from "How to build Megavolt's Small Buffered JTAG v. 1.2"
I have used this JTAG to mod 5 DRD420's when I was testing DAVE and have never had a problem.
I am using Win98 SE.
Skinerd, I'm sure you some input if you read this...
Thanks...
Bendoverdave
I'm trying to JTAG a 2800 to backup the TSOP in case of an future ECM.
NOW...
I get all FF's with the old jkeys and the recent one. I need a once and for all clarification on where the JTAG connections go on the pads.
1 2 3 4 5 6 7
O O O O O O O
------------------------ -> GND
1 = Not used
2 = TMS
3 = TCK
4 = TDI
5 = TDO
6 = TRST
7 = Not used
What about the ground wire from the JTAG? Is it used at all?
I'm using the JTAG I built from "How to build Megavolt's Small Buffered JTAG v. 1.2"
I have used this JTAG to mod 5 DRD420's when I was testing DAVE and have never had a problem.
I am using Win98 SE.
Skinerd, I'm sure you some input if you read this...
Thanks...
Bendoverdave