Re: ps/2 for cbm 700

I believe this is documented in one of the books I have at home, and a book
put out by Protecto comes to mind.  When I return I  will check if no one
can get this info in a more timely manner
B

On Sat, Mar 24, 2018, 5:00 AM didier derny <didier@aida.org> wrote:

> I'm making a ps2 interface for the cbm 700
> but I have very little information on this machine  (not seen it since
> 1984/1985)
>
> Apparently there are not connector inside the machine ?
> only a DB25 connector   ?
>
> from the schematics on zimmer I made this table:
>
> SIGNAL PORT PIN 6525 PIN DB25
> ROW0 PC0 25 13
> ROW1 PC1 26 19
> ROW2 PC2 27 20
> ROW3 PC3 28 21
> ROW4 PC4 29 23
> ROW5 PC5 30 13
>
>
>
>
> COL0 PA0 2 12
> COL1 PA1 3 11
> COL2 PA2 4 10
> COL3 PA3 5 9
> COL4 PA4 6 8
> COL5 PA5 7 7
> COL6 PA6 8 6
> COL7 PA7 9 5
> COL8 PB0 10 17
> COL9 PB1 11 4
> COL10 PB2 12 16
> COL11 PB3 13 3
> COL12 PB4 14 15
> COL13 PB5 15 2
> COL14 PB6 16 14
> COL15 PB7 17 1
>
>
>
>
> GND
>
> 22
> GND
>
> 23
> GND
>
> 24
>
>
> could you confirm if it's correct
> - not sure row/col are not inverted
> - not sure the col number are not inverted
> - not sure the row number are not inverted
>
> thanks
>
>
>