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| Micro Controllers Discuss all aspects of micro controllers - building them, coding them, etc. All controllers are welcome - PIC, BASIC, Z8 Encore!, etc. |
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| Hi everyone I am trying too load the internal Data EEPROM on my PIC and it doesn't seem too be working. Can someone take a look at my code and tell me if it look ok or if you might see any problems Thanks Lee P.S. I have the data and address all ready loaded in ADDR and Temp_Data before calling the Proc. Write_EEPROM BSF STATUS, RP1 BSF STATUS, RP0 ;Bank 3 BTFSC EECON1, WR ;Wait for write to finish GOTO $-1 BCF STATUS, RP0 ;Bank 0 ( ADDR at Bank 0) BCF STATUS, RP1 MOVF ADDR, W ;Address to write to BSF STATUS, RP1 ;Bank 2 MOVWF EEADR ;Save Address BCF STATUS,RP1;Bank 0 ( Temp data at Bank0 ) MOVF Temp_Data, W ;Data to write BSF STATUS,RP1 ;Bank 2 MOVWF EEDATA ;Save Data BSF STATUS, RP0 ;Bank 3 BCF EECON1, EEPGD ;Point to Data memory BSF EECON1, WREN ;Enable writes MOVLW 0x55 ;Write 55h to EECON2 MOVWF EECON2 MOVLW 0xAA ;Write AAh to EECON2 MOVWF EECON2 BSF EECON1, WR ;Start write operation BCF EECON1, WREN ;Disable writes BCF STATUS,RP0 ;Bank 0 BCF STATUS,RP1 return | |
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