one question to ask for your help about JTAG programming

John Zhou johnzhouzj at
Wed May 28 23:22:06 EST 2008

Hi, All,

I have one question about JTAG programming to ask for your help.

Do you know how to access PowerPC's GPRs via JTAG port? I mean if we must
use private JTAG instruction of Freescale to access GPRs, SPRs of

I plan to design a JTAG tester to speed-up our hardware design/debugging and
mass producing.

Your any help is appreciated!

John Zhou
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