Hello! I am currently trying to make Rockbox on my 1st generation iPod nano controllable by the remote control of my JBL On Stage II external speakers. I suppose both devices communicate via the serial bus and Apple's Accessory Protocol.
I configured the serial port to run at 19200 baud with 8 data bits, no parity checking and 1 stop bit. I also enabled bit 3 of general purpose port C and the serial device 0 itself (after a glimpse in the iPodLinux serial driver implementation). For first tests I just polled the serial interface for incoming data. However, as I pressed a button on the remote control no data was being received by the iPod. So either the serial interface is not properly set up or the JBL device is really not sending any data to the iPod (for whatever reason). Any ideas what I might have done wrong? Do I need to activate a special signal so that external devices "know" that an iPod is attached? Any hints are welcome. Christian
