Hi, I'm reverse engineering a SIP phone so I can reposess it and develop open source firmware for it. I think I found why JTAG was failing.
It appears that my TRST is wired to GND through 12 Ohm resistor. As a result, I cannot reset the chip into JTAG mode -- it needs Vtref on TRST to function, AFAIK. Is this a well-known pattern? Any more hints from experience? Thanks, -Rick _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
