HP97 The journey begins

[teenix]

Hi Jonas,

Thankyou.

The memory is the same as the original, but I was working on an expansion as mentioned a few posts ago. I wasn't sure of how it would work in practice, so I shelved it for the time being. It is only code, so it can be re-flashed at a later date. Re-flashing can be done with Bluetooth on this model.

I didn't add a clock. I figured that the 19C might be more of a prized item and wouldn't be used as an "every dayer". This was also some of the reasoning for re-thinking extra memory.

Turbo mode won't increase power demands, the processor is "told" to execute the HP instructions as fast as it can, rather than wait around for the 280uS normal instruction time.

The new board has the original charger setup. I made mention in the help file about running it from 4 alkaline batteries, but I would discourage it as the motor and print head and their drivers are not designed for that voltage.

cheers

Tony