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請問eeprom refresh routine?
#1
資深會員
資深會員


查看用戶資訊
大家好:
又要麻煩版主或高手們了.我執行後卻沒有更新,why?
請幫忙解說.Thanks.
SATRT CODE
CALL REFRESH_EEPROM
GOTO $

REFRESH_EEPROM:
CLRF  EEADR
BCF   EECON1
,CFGS
BCF  EECON1
,EEPGD
BCF  INTCON
,GIE
BSF  EECON1
,WREN
LOOP
:
BSF  EECON1,RD   ;假如用這個的話,不就看當時該位址的值多少來決定的嗎?
MOVLW  55H
MOVWF  EECON2
MOVLW  AAH
MOVWF  EECON2
BSF  EECON1
,WR
BTFSC  EECON1
,WR
BRA  
$-2
INCFSZ  EEADR
,F
BRA  LOOP
BCF  EECON1
,WRNE
;BSF  INTCON,GIE    ;不使用中斷
BCF  PIR2
,EEIF
RETURN


發表於: 2007/9/17 14:59
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Re: 請問eeprom refresh routine?
#2
版主
版主


查看用戶資訊
程式把 下列指令拿掉在執行看看:
BSF EECON1,RD ;假如用這個的話,不就看當時該位址的值多少來決定的嗎?

先用 MPLAN SIM 執行看看結果,如果 EEPROM window 內容有改變後,再用 ICD2 執行,執行完後需用 Read Device 或 Refresh EEPROM window 的方式將資料自 PIC 讀回來這樣才可以看到EEPROM的值是否有被更改。

發表於: 2007/9/17 15:56
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