> I have a encyclopaedic question to ask... > Did the Di-Ren kbd i/f have any sort of logic chip on it or not? > The picture that I have seen appears to have only a couple of capacitors > and a 20MHz crystal. > The picture is not very clear and it's only one sided only however it seems > to me like the board is a two layer one (semi-transparent at that too... ) > and that it doesn't have anything on the side facing the QL... > > Am I totally mistaken here? Or was a special version of the 8049 used for it?
In fact, the Di-Ren manual shows a standard 8049 plugged into the Diren keyboard interface. The original 8049 is removed from the QL circuit board and plugged into the socket on the interface. The interface is then plugged into the 8049 socket. There was a little programmable PIC chip on the interface somewhere, though I can't remember where it was. Robin was very into PIC chips at the time, between the keyboard interface and the various System Amadeus components he embarked on at the time. Anyone still using those? If you need a little more info, the interface manual and keyboard translate software are on my website. -- Dilwyn Jones
