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I built my SBC without any prior experience. You pretty much just have to connect all the adress and data lines, and then figure out the chip selection logic. I
by DavidBuchanan 10y ago
I built my SBC without any prior experience. You pretty much just have to connect all the adress and data lines, and then figure out the chip selection logic. I used an MC68B50 for the UART, which can still be found very cheaply on eBay.
- qwertyuiop924 10y agoHuh. I guess it's worth a shot, then... I'll have to look into using a MAX232 for connecting it to my terminal, as well (I do, in fact, have a terminal: A Z19, in fact). Might as well build a Z80 system while I'm at it. And Zilog's UARTs are quite nice, or so I've heard.
- DavidBuchanan 10y agoOne thing I'd recommend is to try to find some 5V erasable EEPROMs, so you can reprogram it in-system wthout having to transfer it over to a dedicated (and expensive) programmer. I went with a 12V-EEPROM at the time, so I had to write my own emulator to speed up my development cycles :)