Wolfgang Denk wrote:
In message OF148161B0.215740C5-ON4825705B.001BEE4A@uk.marconicomms.com you wrote:
I am trying to bring up the USB controller on PQ2FADS-ZU with MPC8280onboard. I have finished with the initialization and transaction routines but not the ones neccessary for usbtty to work. The u-boot-1.1.2 source
[snip]
(3) What type of cable should I use? I assume a Type-A-to-Type-A PC-to-PC
You better check what your hardware allows. Using a A-to-A cable with hartdware that is not compatible may ruin both your target board and the PC.
Best regards,
Wolfgang Denk
IIRC, the PQ2FADS board has an errata on using USB in slave mode: the circuitry does not disconnect the +5v power properly when in slave mode (sneak path through the MOSFET intrinsic diode?) and so the PQ2FADS board (as slave) could fight with the host (as master). CHECK THIS BEFORE CONNECTING IT UP.
gvb