We solved the issue of seeing GPMC bus transactions on the Pandaboard J3/J6 expansion connectors: the problem was that the GPMC was not connected to the expansion connectors because of bad pin multiplexing setup. Now we are trying to observe address/data multiplexed bus operation. We can only observe non-multiplexed operation i.e. if GPMC_CONFIG1 = 0x00001000 then the data (but no address) can be observed on the AD bus with a scope. However, if GPMC_CONFIG1 = 0x00001200, the AD bus is at ground all the time. Does anyone have a fix for this problem?
Thanks,
- David.
