Used to be, you could go to Radio Shock and purchase one of those
solder-yourself 44-pin edgecards that mate with the KIM-4 expansion
board. I'm thinking one way around my dead keyboard issue which
also solves my desire for expansion would be to add a CPLD
decoder, 32K SRAM, 32K ROM (with holes around the 6530s
and remapping new patched monitor into $1800-$1FFF), and 6551
UART/MAX232 combo to input code and d/l intel hex. (The cassette
interface on poor KIM is dead, too.)
By the way, if anyone's interested, I have a generic 6502 Intel Hex
program downloader program that allows you to assemble and directly
download programs from the development PC into your SBC.
It's freeware so have at it if anyone finds it useful.
It's at:
http://www.6502.org/source/monitors/intelhex/intelhex.htm
Received on Mon Apr 09 2001 - 18:59:30 BST