How have you got the jumpers above the 1772 setup ? Have you tried a different sound IC ?
Also does the external drive spin up when accessed ?
How have you got the jumpers above the 1772 setup ? Have you tried a different sound IC ?
Sorry did not realise I left that out of the pic.. yes the top jumpers are currently set for INTERNAL drive A and external B.. I have tried it both ways.
IanSB did two version of the shifter board. The buffered one (with the SMD stuff on it) is only needed if the board you have (with CPLD) is going to be far away from it. If you are going to keep it fairly close you don't have to solder any SMD and just get the other shifter board.