On Tuesday 16 June 2009, David Brownell wrote: > Fix a bug preventing ICEpick "enable that TAP" code from working:
.... and FWIW, I've now seen ARM9 CPUs be properly enabled using an ICEpick-C and set up so OpenOCD can talk to them. Other than polishing off rough spots, I'll highlight two more tasks that I think will affect Beagle and the like: - Cortex A8 support. Merge these three patches and I think it should basically be unblocked, for folk using Beagle. - System resets. These boards use the TI-14 connectors, with no SRST signal. I understand system resets can be done by a few ICEpick commands. Failing that, I suppose "force a (CPU) watchdog reset" would help too. Enough for now... # For ICEpick-C, as seen in DaVinci and OMAP3. # jrc == TAP name for the ICEpick # port == a port number, 0..15 proc icepick_c_tapenable {jrc port} { # NOTE: it's important not to enter RUN/IDLE state until # done sending these instructions and data to the ICEpick. # And never to enter RESET, which will disable the TAPs. # REVISIT ICEpick-C actually manage 32 routes. # TI numbers this set both 0..15 and (more often) 16..31 # select router irscan $jrc 7 -endstate IRPAUSE drscan $jrc 8 0x89 -endstate DRPAUSE # set ip control irscan $jrc 2 -endstate IRPAUSE drscan $jrc 32 [expr 0xa0002108 + ($port << 24)] -endstate DRPAUSE irscan $jrc 0x3F -endstate RUN/IDLE runtest 10 } _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development