limited EEprom programing

Is there a method to reprogram a section of an onboard EEprom on the 16F876 with ICSP or Bootloader without writing to code memory? My project needs to have six bytes of EEprom manually updated but I don’t want to reprogram the entire code section or the remaining prom. Comments please.

If you are using the PicKit2 you can read and write EEPROM data only.

Read the EEPROM then make the changes in the PicKit2 window then re-write.

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My project needs to have six bytes of EEprom manually updated but I don’t want to reprogram the entire code section or the remaining prom. Comments please.

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If you have a spare pin available on your 16F876, then you can use it for a serial connection and change eeprom values all the times you like, using the WRITE instruction.

Al.

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Originally Posted by aratti

If you have a spare pin available on your 16F876, then you can use it for a serial connection and change eeprom values all the times you like, using the WRITE instruction.

Al.

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But that would mean the code would have to be changed??

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But that would mean the code would have to be changed??

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Naturally.

Al.

Thanks fellows for your help. Dave, I have no Pickit2, too bad, that would do the trick. Al, I may be able to rig a serial input to use the Write command. Thanks for the solutions.