No 41C / 41CV ?



On 7/4/2016 9:36 PM, Anthony Nixon wrote:
>   Hi all,
>
> If anyone is interested the emulator for HP calculators has been upgraded=
..
>
> It now does models for HP35, 45, 55, 65, 67, 70, 80, 21, 22, 25, 27 and 2=
9C.
>
> The emulation of the HP67 was quite complex because its card reader is
> controlled by the calculators own microcode. It also has more memory
> and the PIC was changed to a 16F1519 to cope.
>
> The circuit board as presented previously still works, however the 29C
> was one of the first with CMOS chips. HP took advantage of the low
> power requirements, as the power switch didn't actually turn the
> calculator off and the calculator could "remember" the stored program
> and the state it was in. The display was turned off, but the code
> still executed in a different loop. A new PCB will be available soon
> to enable this feature.
>
> The free downloads are at www.teenix.org
>
> cheers
>
> Tony

--=20
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