Marty
Veteran Member
Hi All;
I have made some progress, I wrote a very small program, and used the Altair 8800 CPU card and Entered the code by the Front panel..
The code with the appropiate changes where needed is
00 3E Mvi A,
01 00,
02 DB IN,
03 A0
04 3c Inc A,
05 c3 Jmp,
06 02
07 00..
The changes are to A0 to A1, etc and DB to D3 for in and for out..
The correct led's light up on the Serial Card, which at least says that the Switches are OK for Addressing..
So, it looks like it's the Z-80 CPU Card..
THANK YOU Marty
I have made some progress, I wrote a very small program, and used the Altair 8800 CPU card and Entered the code by the Front panel..
The code with the appropiate changes where needed is
00 3E Mvi A,
01 00,
02 DB IN,
03 A0
04 3c Inc A,
05 c3 Jmp,
06 02
07 00..
The changes are to A0 to A1, etc and DB to D3 for in and for out..
The correct led's light up on the Serial Card, which at least says that the Switches are OK for Addressing..
So, it looks like it's the Z-80 CPU Card..
THANK YOU Marty