Hi, I'm trying to make my own Z80 computer and need to burn Grant Searle's Z80 Basic ROM onto my 28C64.
The programmer reads and erases fine, but just can never seem to write properly. I downloaded the ROM hex file from the link above and converted it into a binary file with SRecord. The resulting bin was 8192 bytes. My EEPROM is also 8192 bytes, so there shouldn't be any issues, right?
Well, the GUI app gives me this message, just like any other task:
Opening: C:\Users\Eric\Downloads\MEEPROMMER\SimpleJBurn\bin\rom.bin.
8192 bytes loaded from "rom.bin"
sending command.
wrote data from 0x0000 to 0x03FF
but it then freezes and the only way to get out of it is to close the app and start it again. So I have never been able to successfully write anything to my EEPROM yet. Also, the python CLI program doesn't work as well, so I'm assuming the problem's in the hardware. I made the programmer on a breadboard, but checked the wiring many times and didn't find any issues.
Hi, I'm trying to make my own Z80 computer and need to burn Grant Searle's Z80 Basic ROM onto my 28C64.
The programmer reads and erases fine, but just can never seem to write properly. I downloaded the ROM hex file from the link above and converted it into a binary file with SRecord. The resulting bin was 8192 bytes. My EEPROM is also 8192 bytes, so there shouldn't be any issues, right?
Well, the GUI app gives me this message, just like any other task:
Opening: C:\Users\Eric\Downloads\MEEPROMMER\SimpleJBurn\bin\rom.bin. 8192 bytes loaded from "rom.bin" sending command. wrote data from 0x0000 to 0x03FF
but it then freezes and the only way to get out of it is to close the app and start it again. So I have never been able to successfully write anything to my EEPROM yet. Also, the python CLI program doesn't work as well, so I'm assuming the problem's in the hardware. I made the programmer on a breadboard, but checked the wiring many times and didn't find any issues.
Any help would be greatly appreciated, thanks!!!