Question: I have an E2PROM user module in my project to store some calibration values. I would like to assign default values to the E2PROM locations when initially programming the device. Hoe do I do this.
Answer: For example if the E2PROM is placed in the last block of a 32K device and you want to initialize the first 4 bytes with some values.
In C: Use the #pragma abs_address directive and the const keyword to place the initial values in the E2PROM space.
#pragma abs_address 0x7FC0
const char InitialValues[] = {0x00, 0x00, 0xFF, 0xFE};
#pragma end_abs_address
In Assembly: Use the area directive to define a ROM area, set the location using the org directive and place the initial values.
area EepromArea(rom, abs)
org 0x7FC0
db 0x00, 0x00, 0xFF, 0xFE