Ongoing6502 SBC Computer v3
STD6502 SBC Computer v3
License
：Public Domain
Description
6502 based SBC Most of the design from Grant searle's original design. This version has been extended by me.
I have Added a jumper to allow 256k/512k EPROM/EEPROM giving access to four pages of ROM with a single jumper, also re-connected the RTS line to aid with hardware connection to a PC.
I also had issues with getting the Xtal to work with the LS series, so I adjusted the 2k2 resistors and switched to using HCT series. In theory this would also help with using a 65c02 chip.
The circuit layout was created by me with improved silk screen markings to help make sure things like the FTDI are connected the right way!
A 40-way edge connector was added to allow connection to the CZ-Bus backplane and expansion cards. With the female connector you can use a single card directly in the board or connect to a backplane and use multiple cards and seperate power supply.
Design Drawing
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