Re:Easy 6502 – How to get started writing 6502 assembly lang...
by DavidBuchanan on Thursday January 05, 2017 @03:32PM
(#13331097)
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.
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Re:Easy 6502 – How to get started writing 6502 assembly lang...
by qwertyuiop924 on Thursday January 05, 2017 @07:01PM
(#13332685)
Huh. 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.
Re:Easy 6502 – How to get started writing 6502 assembly lang...
by DavidBuchanan on Friday January 06, 2017 @01:36PM
(#13338893)
One 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 :)