NP-41 Emulator (may be)
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12-14-2017, 07:48 PM
Post: #313
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RE: NP-41 Emulator (may be)
(12-12-2017 11:22 PM)Didier Lachieze Wrote: I've done a quick speed test with a prime test program, the NP-41 is 2.3 times faster than my 41CX: it takes 17.8s to find that 1000003 is prime vs. 41.2s on the 41CX.Hi Didier, thanks for the quick note. I understand the issue w/ the keyboard. They are not only noisy but not comfortable to use (hard on fingers). This is why my daughter abandon the NP41 over a Sharp EL-531 for school (she's starting Trigonometry). If you have any suggestions / ideas, S/W, H/W or otherwise, I would love to hear. (12-14-2017 02:37 PM)Alejandro Paz(Germany) Wrote: I hope I find some time soon to work on the nut core, I don't want to leave the saturn core aside now. Seeing that widening the ALU path to 64 bits doesn't pay off as I hoped, I'll have to reduce it to 16 bits or so to be able to rise the clock and recover some luts. Let's make it work first.Good luck, wish to see your project / progress soon. Quote:I received my NP-41 this morning and followed the suggested steps without any issues.Thanks Mark, If you can try and make sure you can access the Serial menu. Especially able to ERASE the ROM segments. I am suspecting the current problem got to do w/ these ROM spaces being dirty. With the ERASE capability, if there is a freeze up, one may be able to unbrick the emulator. You may want to try the ROM erase and loading via USB-Serial. Please only load one ROM for now as during my last try w/ 2 ROMs, the 2nd ROM messed up and shown garbage on a "CAT 2". For the bootloader, since once you started the binary transfer, program area will be written on-the-fly so there is more risk. The fact the Sylvain's unit failed after he try the bootloader menu (w/o actually connecting via cable) make me reluctant to ask you to try the same. I was hoping to work w/ him to recover his unit first. He's in Canada and can communicate / exchange w/ me easier. In hindsight, this 1st batch should have been organized as a beta group w/ less units. I thank you all for your patience. |
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