This post provides the internal EEPROM reading and writing code for PIC12F675 microcontroller.
As we know, PIC12F675 microcontroller has 128 bytes of built in EEPROM data space with an address range of 0x00 to 0x7F. This code is written in C language using MPLAB with HI-TECH C compiler. You can download this code from the ‘Downloads‘ section at the bottom of this page.
It is assumed that you know how to blink an LED with PIC12F675 microcontroller. If you don’t then please read this page first, before proceeding with this article.
The result of simulating the code in Proteus is shown below.
In the above circuit, LED attached on GP0 indicates weather a byte was successfully written in the internal EEPROM or not. In the above figure, LED is ON which indicates that EEPROM was successfully programmed.
The code for the main function is shown below.
EEPROM code for PIC12F675 was compiled in MPLAB v8.85 with HI-TECH C v9.83 compiler and simulation was made in Proteus v7.10. To download code and Proteus simulation click here.
For more detail: PIC12F675 internal EEPROM code and Proteus simulation