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 powerpc/mcu. I plan to design a JTAG tester to speed-up our hardware design/debugging and mass producing. Your any help is appreciated! John Zhou