hi..
i have an IC AT89C2051 which was programmed long time ago. now, i want to make it again and make some differences, but i lost my ASM file.
how to read the list of program from the IC and i get the ASM file?
fyi, i used assembly language.
If the lock bits were left un-programmed you can read the contents of the 2051's memory and using disassembler convert it back to the ASM file ..
Disassemblers are readily available on the web ..
If the lock bits were programmed, you can kiss it goodbye ..
All what you need from that ZIP is the D51.EXE ..
Copy D51.EXE to the subdirectory where the HEX file is and use Command Prompt to execute it ..
So, for example, once you are in the right subdirectory simply type: