Hi I am trying to use MacCraigor's OCD Commander (different versions: 2.2.9, 2.3.7 and 2.5.6) with a wiggler-clone JTAG interface (based on http://wiki.openwrt.org/OpenWrtDocs/Customizing/Hardware/JTAG_Cable) that works fine with hairydairymaid (HDM) 4.8 with the /wiggler option (however only after making TDO available on both pins 11 and 13 of the DB25, cause' HDM is checking SELECT and not BUSY). OCD Commander does not complain about not finding the cable but while HDM is able to put the CPU in RESET and halt it, OCD Commander's RESET and HALT commands take a while and finally end in error "processor running". I was wondering if other people have experience with OCD Commander, wiggler and WRT54GL and could give some advice on what's wrong. My personal suspicion is that the Broadcom 5132 MIPS core is not supported or OCD Commander's JTAG 2.5 protocol is incompatible with Broadcom's 2.0 JTAG implementation. Also very helpful would be a software tool allowing to sniff/trace the parallel port handshakes - similar to the "parallel port oscilloscope (http://www.trikaliotis.net/pposc) but working on Windows XP SP2. I've tried, to no avail, PPOSC and sysinternals' portmon. They do not seem to capture anything that happens on ports 0x378 and 0x379. Thanks Romar Mro

Wiggler with OCD Commander and WRT54GL
Started by ●August 30, 2007
