Recreating a HP-25

[PANAMATIK]

(06-09-2016 07:33 AM)Alejandro Paz(Germany) Wrote:  [...] there is a couple of emulators, but having the calc on one's hand is something else, I think.

Hi Alejandro

Now I have a real competitor

I had a look into your HDL code. It's absolutely amazing, that you coded everything in hardware without using an embedded processor. Your HP-25 will be very very fast! You have to prolong the PAUSE and key response. If you need any help, you are welcome.

It would be interesting to compare, how efficient the original HP hardware was between the modern HDL approach, compared by number of gates.

(06-09-2016 10:41 AM)Thomas Radtke Wrote:  And I agree. Care to sell a replacement kit for Woodstocks with rotten innards? :-)

Now, I have to reveal that I am building a new replacement kit for woodstocks in addition to the repair kit, which revives the calculator even if only the PCB is present and all chips and power supply are damaged or removed. It will be the Low Power Version of the new ACT, because it will consume only between 10-40mA. Battery life time will be weeks in standby mode.

Bernhard