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tdididit's Achievements
Chopper Commander (4/9)
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You have one from two existing 2015 prototypes Now I found production files from crashed SSD, thats why I decided to make it public
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in case if somebody would like to build old 256kB devcart for own use, I made production files public https://github.com/tdididit/a78-devcart Happy New Year !
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I have working Corina Cart (Bomb Jake config - 512kB ROM, 512kB RAM, 8kB EEPROM) Schematics in PDF Zenon Zone - Cartridge _Corina.pdf
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It's not a final version, i need make it longer & ENIG anyway.
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It is easy to check if you have PEB, but I don't have it and space to set it up. Thats why I am re-creating PEB cards for sidecar port I think that longer spin time was set by OG controller designers to be sure that floppy got right rotation speed before formatter chip start to read anything.
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There is bit more errors in schematics and differencies between CC9900 revisions, including gluelogic. I started building my sidecar CC9900 now basing on TMS2793 formatter chip. At the moment waiting for pldanalyzer boards to rip PAL equations from PEB card I get from friend - TMS2793 CC9900
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SAMS is 32x 32k rampacks in one sidecar interface. Apps & games made for 32k expansion will work with SAMS Coming week I will show my pass-thru adapter for jedimatt42 pin connector standard. With it you will be able to connect uPEB or any other sidecar interface to SAMS or SAMS+TIPI expansions
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it is mini usb not micro for barrel plug lovers there is adapter https://www.ebay.com/itm/DC-Power-Mini-USB-5-Pin-to-5-5-x-2-1mm-Female-Jack-Adapter-Charging-Cable-15cm-/252846858848 I never heard about ripped off mini usb port
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uPEB (micro PEB) is my coming project. Sidecar rail for 2, 4 or 8 dedicated cards. Pass-thru so you can join together few rails or sidecar interfaces uPEB card dimensions are 60x100mm I am working now on hardest CC9900 card. HDC, RS232, PRINTER & TIPI will go faster
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I am not telling that nanoPEB is a bad product - idea is great, pcb made by auto-router tool not amaze me at all. Just trying to tell you how it works - old designs should be replaced by new or to evolve to stay on market.
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I remember, but i think that nanoPEB designer should do something with hardware compatibility. I get from my friend around 5 nanoPEBs, each looks different and each got other issues working alone.
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First of all you should remember that SAMS and nanoPEB are not made to work together - SAMS will collide with 32k RAM from nanoPEB. Maybe you should ask about redesigned nanoPEB to be compatible with jedimatt42 32k rampack & SAMS? I think you should wait for my coming uPEB project where you will be able to decide what cards should be present in your system configuration.
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In nanoPEB indeed can be hard (not impossible), but you can install adapter on SAMS or TIPI and plug nanoPEB as a last sidecar device. Next week i will show how it looks "in live" - boards added to my pending boardhouse order, should be shipped monday
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It seems many tipi users struggle without passthru edge connector, so i made an adapter edge connector - can be soldered direct into any sidecar expansion without edge connector (lowest budget, minimal soldering skills needed) adapter for barrel plug devices - plug & play adapter for usb powered devices - plug & play