On Thursday 17 December 2009, Charles Vaughn wrote: > revision notes mention SWO support being added, which uses TDO and TMS.
Your problem signal is TDO (that's giving "all ones" output), so this looks like the right track... Looks to me like the way they added SWO support involved adding an additional control signal, which the previous revision didn't use. And thus, the previous OpenOCD driver didn't use... so one theory is that said signal is driven wrong, disabling JTAG. In the best of worlds, they used the same signal as various other boards, so you could just switch to the other interface config (which doesn't advertise itself as being for the '811 board). ISTR those go through CPLDs ... this one seems not to do that, I mis-remembered. Less optimally you'd have to tweak src/jtag/driver/ft2232.c to understand this as yet another variant. - Dave _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
