very nice Brian!
On Sun, Mar 22, 2020 at 3:22 AM Brian K. White <[email protected]> wrote: > I just finished an adapter board for the main rom in the PC-8300 > > http://tandy.wiki/FlashROM_8300 > > The deal is, the PC-8300 main rom takes an unusual 1Mbit mask rom in a > 28-pin socket. It's not a 27C256 or even a 27C1000 or 27C010 pinout. > > So this board uses any of a variety of 5v flash or eeprom or even uv > eprom chips in ether LCC or TSOP packages, and includes a jumper to > switch the pinout between a normal pinout and the pc-8300 pinout. > > You program it by just putting the board directly in a programmer zif > socket, and set the jumper to PROGRAM. > > You use it by putting the board in the pc-8300 ROM0 socket and setting > the jumper to RUN. > > -- > bkw >
