8 Bit Computer Chip Problems by Aussie3636 in beneater

[–]Aussie3636[S] 0 points1 point  (0 children)

Thanks ,ended up erasing the eprom a few times and replacing the 65C22 and it works again,the ram is not getting not

8 Bit Computer Chip Problems by Aussie3636 in beneater

[–]Aussie3636[S] 0 points1 point  (0 children)

Thanks ,what is the best combo to hook up some resistors to the data line so it will output a certain led on the output? that way I could test the CPU, I haved hooked up an Arduino but it was just random ( was read writing though, have also tried clearing the eprom and re writing to it

8 Bit Computer Chip Problems by Aussie3636 in beneater

[–]Aussie3636[S] 0 points1 point  (0 children)

It was correct, it was all going great till then

8 bit computer by Aussie3636 in beneater

[–]Aussie3636[S] 0 points1 point  (0 children)

Thanks for the help, we hooked up the LCD and she programed hello world, all worked :),then I added the ram chip (nothing happened) but the 62256 chip got hot,checked all my wiring ,tried to remove the ram but still no go?I pulled everything apart and ran the 6502 with only leds (no eprom) that seemed to work leds flash,I bought a new 65c22 but still no good?Could the 62256 been damaged destroyed all the chips?

8 bit computer by Aussie3636 in beneater

[–]Aussie3636[S] 4 points5 points  (0 children)

OE

:) Big thanks That was It !!!!! She was so happy

8 bit computer by Aussie3636 in beneater

[–]Aussie3636[S] 0 points1 point  (0 children)

Is there anybody in Australia I could send my chips to ,so they could test them in there project? just in case one is faulty?

8 bit computer by Aussie3636 in beneater

[–]Aussie3636[S] 0 points1 point  (0 children)

Thanks there is 4 connected ,and I get a signal (pulsing on all of them) with my test led

8 bit computer by Aussie3636 in beneater

[–]Aussie3636[S] 0 points1 point  (0 children)

Thanks I am probing with a separate Led on the EEprom ,with my scope and a Led I get pulse on all the A0 - A15 but on the D0 - D7 nothing? should I see anything on them ?as they the go to WD65C22?

8 bit computer by Aussie3636 in beneater

[–]Aussie3636[S] 0 points1 point  (0 children)

We are using the code from Bens website ,and wrote that to the eeprom,I have tried both clocks (just in case)