HP97 The journey begins

[teenix]

Hi all,

I have the HP-91 and HP-92 board pretty much done. It is happy running in 91 or 92 hardware and will also emulate 92 in 91 hardware and the 91 in 92 hardware. I thought this would be easy, but there are differences to account for.

I added a clock which also has the funky text display and this all works ok.

The printer is being a bit cranky when paper is put in, so it looks like it needs a service, hopefully just lubrication. It is interesting that the idler gear for this printer is made out of black plastic and not the crumbly waxy looking ones I've seen in the 97's.

I also added Continuous Memory for both models and doesn't require battery backup.

cheers

Tony