Right just started a little project using the 18f4550 for usb and wanted to save some data in the internal eeprom.
Easy or so i thought, as i am using Hi-tech PRO 18 V9.63 PL3 i thought i would use th eeprom_read and eeprom_write commands.
So to test i used MPLAB and put a message in the eeprom and checked my read routine, OK, and so as my checksum failed i tested the write routine and NOTHING
Now i have checked the config and i have _CONFIG( 1, USBPLL & IES0DIS & FCMDIS & HSPLL & CPUDIV1 & PLLDIV5); _CONFIG( 2, VREGEN & PWRTDIS & BOREN & BORV20 & WDTDIS & WDTPS32K); _CONFIG( 3, PBDIGITAL & LPTDIS & MCLREN); _CONFIG( 4, XINSTDIS & STVREN & LPVDIS & ICPORTDIS & DEBUGDIS); _CONFIG( 5, UNPROTECT) _CONFIG( 6, UNPROTECT) _CONFIG( 7, UNPROTECT)
and if i check the config in MPLAB it says EEPROM_WRITE PROTECT is DISABLED
Anybody have any ideas?
Ive downloaded code from the web to do the eeprom_write code inline and still nothing.
joolzg