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You are here: 8051 Tools Development Board Example Code Demo Programs |
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Demo Programs On New BoardsThere five programs are loaded into the flash rom memory on every assembled board as part of the testing done by PJRC.
These assembly language files contain ".org" directives which place the code in Flash ROM, from F000 to F7FF. When you modify these programs, you will need to erase the originals in the Flash ROM before downloading.
Restoring The Board To Original ConfigurationIf you have erased your flash rom, or accidentally corrupted its contents, or downloaded some program that does not work properly, these steps can be followed to restore the board to the original configuration as shipped by PJRC.
These steps will work in all cases. However, in most cases it is sufficient to simply use the "Erase flash rom" ('Z') command, and then download the 5 hex files. Code Used In 87C52 Internal EPROMThis is the complete monitor code provided on the board:
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