Multi Calculator Kit

[Harald]

(10-28-2017 08:24 AM)PANAMATIK Wrote:  The year 2017 is the year of the multi calculator kits. Three different multi calculator boards are in development. Teenix probably the most complete on a dedicated board, Harald a replacement board for the Classic series based on teenix software, and my "Low Power" board for the Woodstock hardware.

Here a brief comparison as far as I know

Teenix:
All Classic 35/45/55/65/70/80, all Woodstock 21/22/25/27/29 all Spice 31/32/33/34/37/38 and 67 and 19C running on a new developed board with own keyboard.
Some of the models are simulations rather than true emulations.
Using 16-bit PIC PIC18F47K40 with 128k Flash memory
Easy to assemble or ready to use PCB.

Harald:
All classic 35/45/55/65/70/80 running on a board which fits into the Classic hardware, using the original case and keyboard. Easy to fit into the calculator just by plugging in.
Based on teenix software with dedicated Classic display driver interface
using 8-bit PIC processor

Panamatik:
Classic 35/45/55/70/80, all Woodstock 21/22/25/27/29 all Spice 31/32/33/34/37/38 and 67 running on any Woodstock hardware using he original case and keyboard.
Based on new ACT software with many extensions. True emulations of all calculators.
Using 8-bit PIC16LF1819 with 32k Flash and 512k external Flash, IR printing, GPS receiver, Real Time Clock. Relatively difficult to plug in, because two ICs have to be unsoldered and modifications of the board have to be done.

The race is on. Who will have finished his software first. I'm still struggling

Bernhard

Hi Bernhard,

As far as I know, all the models included in Tonys software are true emulations running the original microcode.
My bord will support all the modells Tonys board does.
The big advantage of using the original display drivers is, that no soldering is required and the modification is fully and easily reversable. The downside is that the display drivers cannot be turned off and therefore a low power version is not possible. The difficulty with the original HP display drivers is, that they supply the system clock and data to the drivers has to be synchronised to that clock and the timing needs to be fairly accurate. This is why I have used a (renesas) controller with a DMA to interface between Tonys PIC and the HP display drivers.

The Main advantages of Bernhards boards is above all (in my opinion) the low power mode and all the fancy festures on top of the emulation of the original models.

Cheers,
Harald