Re: 16F84 zápis do EEPROM

[Lukáš Grepl]

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Na začátku rutiny je BSF STATUS, RP0, což je přepnutí druhé stránky paměti.
Tj. nas konci musi byt BCF STATUS, RP1. Prikladam INCcko pro cteni/zapis
EEPROM, jak ji pouzivam ja.

S pozdravem Lukas Grepl, OK2WDT


> rutinu pro zápis:
>  BSF STATUS,RP0
...
>  BCF EECON1,WREN

> stránku registrů toto:
>
> Message[302] D:\MPLAB\EXAMPLE\CASOVAC.ASM 77 : Register in operand not in
> bank 0.  Ensure that bank bits are correct.


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ReadEEPROM         movwf EEADR
                   bsf STATUS, RP0
                   bsf EECON1, RD
EERDLoop           btfsc EECON1, RD
                   goto EERDLoop
                   bcf STATUS, RP0
                   movfw EEDATA
                   return

WriteEEPROM        movwf EEADR
                   bsf SWR, RP0
                   movlw 55H
                   movwf EECON2
                   movlw 0aaH
                   movwf EECON2
                   bsf EECON1, WR
EEWRLoop           btfsc EECON1, WR
                   goto EEWRLoop
                   bcf SWR, RP0
                   return

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