kent whitten schrieb: > I'm trying to get this going, and could use any hints > what the gpio pins might be used for. This guy has > lots more pins set for output, than any other genesys > device. I'm actually scanning, but getting nothing > back but zeros, so I'm taking all 200 passes in > calibrate_offsets, then getting a black page. All of > my traces are caught on a CATC anaylzer, and there is > another scanner here in pieces, if I can answer any > questions. > Thanks > Kent >
Hi Kent, try to capture an usb log using a windows os. That should give the correct gpio setup or setup sequence. At least the 35/50 needs a special gpio sequence to get the lamp etc. to work(else it would just reset itself when trying to directly set the gpio pins..). Assigning a meaning to a pin then is mostly guesswork, but can be sped up by searching the pcb for the gpio wires. I could think of making a single gpio pin continually change its output state and then searching for it. I collected some scripts from my efforts in getting the LiDE 35 to work here: http://pirsoft-dsl-dropzone.de/ This one is not linked, but may be useful to you: http://pirsoft-dsl-dropzone.de/canon-lide35.tbz2 it is my stand-alone scanning test program. Regards, Pierre