Hi Neil, I think there are quite a few emulators around for the 41 series, so might not be worth the effort to get another one going. I'll have a look into it further though. cheers Tony On Sun, Jul 17, 2016 at 10:45 AM, Neil wrote: > 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 upgrade= d. >> >> It now does models for HP35, 45, 55, 65, 67, 70, 80, 21, 22, 25, 27 and = 29C. >> >> 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 > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .