> > Just as a matter of interest: the latest E+WW has a very > > simple 16C84 PIC programmer - which could easily > > be modified for the SAM. But is anybody interested > > in PIC chips? > > Yeah... Martin and I have a couple -- we're working on a PC--> SAM > keyboard interface using them :) > > Simon
Well, good luck... I've just spent my easter building a PC keyboard interface, and it virtually works, but I've had to shelve it temporarily. It extends the reading of the keyboard port by a few wait cycles, which I assumed would be fine... but there are a few odd 'bugs'. Firstly, I found the title screen was corrupted - the 'P' on MGT PLC had a short bit on the bottom of the loop - seemed like one pixel rather than the three or so it should be. Sometimes the characters were corrupted more badly, but as soon as I started typing and it went to BASIC, every- thing was fine. Also, the disc just whirred - I can"t really see why this happened? Does the DOS read the status/keyboard ports much? I can't imagine it.. Another odd thing was that when it was in an even less working state, it would only crash the SAM after it had completed the screen flashing memory blanking sequence. Has anyone any ideas on these problems, please?! Also... how essential is it to include /M1 decoding for I/O ports? -Andrew
