謝謝了..拿到EEPROM部分，SampleBoard已經先送出去給客戶測試了..等板子回來再來試試...

LIST P=16F887
#INCLUDE <P16F887.INC>
__CONFIG _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_OFF & _PWRTE_OFF & _MCLRE_ON & _CP_OFF & _CPD_OFF & _BOR_OFF & _IESO_OFF & _FCMEN_OFF & _LVP_OFF & _DEBUG_OFF ;
__CONFIG _CONFIG2, _WRT_OFF & _BOR21V;
;--------------RAM LOCATIONS---------------------
DATA_EE_ADDR EQU 0X7F
DATA_EE_DATA EQU 0X7E
COUNT EQU 0X7D
;--------------ECTORS----------------------------
ORG 0000H
NOP
GOTO START

;--------------PROGRAM---------------------------
ORG 0020H
START:
CALL INIT
;--------------TEST THE WRITE EEPROM ROUTINE-----
;;;;;PAGE
MOVLW #H'00'
MOVWF DATA_EE_ADDR
MOVLW #H'30' ; LOAD A ASCII CODE "0" TO W
MOVWF DATA_EE_DATA
EE_WRITE:
CALL WRITE_EEPROM
INCF DATA_EE_DATA,F ; 0X30+ N
INCF DATA_EE_ADDR,F ; POINT TO NEXT EEPROM ADDRESS
;;;;;
INCF COUNT,F
MOVF COUNT,W
XORLW #D'128' ; WRITE 32 BYTE
BTFSS STATUS,Z
GOTO EE_WRITE
CLRF COUNT
;;;;;PAGE
;--------------TEST THE READ EEPROM ROUTINE------
;;;;;PAGE
MOVLW #H'20' ; GET BACK EEPROM DATA TO RAM WITH START ADDR AT 0X20
MOVWF FSR
;;;;;
MOVLW #H'00' ; POINT TO EEPROM START ADDRESS AT 0X00
MOVWF DATA_EE_ADDR
EE_READ:
CALL READ_EEPROM ; READ EEPROM DATA WITH CURENT ADDRESS TO W REGISTRE
;;;;;
MOVWF INDF ; MOVE W --> RAM
;;;;;
INCF FSR,F
INCF DATA_EE_ADDR,F ; POINT TO NEXT EEPROM ADDRESS
;;;;;
INCF COUNT,F
MOVF COUNT,W
XORLW #D'32' ; READ 32 BYTE
BTFSS STATUS,Z
GOTO EE_READ
CLRF COUNT
GOTO $
;;;;;PAGE
;--------------INTERNAL EEPROM READ--------------
READ_EEPROM:
BANKSEL EEADR
MOVF DATA_EE_ADDR,W ; LOAD EEPROM ADDRESS INTO POINTER
MOVWF EEADR
BANKSEL EECON1
BCF EECON1,EEPGD ; ACCESSES DATA MEMORY
BSF EECON1,RD ; INITIATES A MEMORY READ
BANKSEL EEDATA
MOVF EEDATA,W
BANKSEL PORTA
RETURN
;--------------INTERNAL EEPROM WRITE-------------
WRITE_EEPROM:
BANKSEL EEADR
MOVF DATA_EE_ADDR,W ; LOAD EEPROM ADDRESS & DATA INTO REGISTER
MOVWF EEADR
MOVF DATA_EE_DATA,W
MOVWF EEDATA
BANKSEL EECON1
BCF EECON1,EEPGD ; SELECTED DATA EEPROM FOR WRITING
BSF EECON1,WREN ; ENABLE WRITE FUNCTION
MOVLW #H'55' ; WRITE SEQUENCE CONTROL
MOVWF EECON2
MOVLW #H'AA'
MOVWF EECON2
BSF EECON1,WR ; START EEPROM WRITE OPERATION
BCF EECON1,WREN ; DISABLE WRITE EEPROM
BTFSC EECON1,WR ; WAITING FOR WRITING COMPLETED (4MS)
GOTO $-1 ; DURING WRITE PERIOD, MUST HOLD BOTH EEADR & EEDATA UNTIL COMPLETE
BANKSEL PORTA
RETURN
;--------------INITIAL---------------------------
INIT:
CLRF COUNT
BCF PIR2,EEIF ; WRITE OPERATION HAS NOT COMPLETED OR HAS NOT STARTED
BANKSEL PIE2
BCF PIE2,EEIE ; DISABLES EEPROM WRITE OPERATION INTERRUPT
RETURN
;------------------------------------------------
END

可以參考一下我的...
我用16F887...
還OK...
你再試試...

謝謝版大...
不過我剛也試過了..一樣會死當..

btfsc EECON1,WR
GOTO $-1
我把這2行註解掉..是偶爾會..
沒註解掉..只要執行到寫入EEPROM是一定當...??

右邊程式範例第11項裏有PIC16F877 EEPROM 的範例。

小弟最近一個CASE，使用16f690,在寫入EERPOM時，
10次有1次會發生死當..目前還在找原因..

情況:
1.使用組語，參考DATASHEET的寫法
2.原以為是堆疊OVERFLOW，但查過應該不會
3.將寫入EEPROM註解掉，就不會發生死當現象..

是不是有什麼地方要注意的?
總覺得DataSheet的寫法讓我覺得怪怪的..
有前輩能提供一份簡易的範例嗎?...謝謝
hzlen@edirect168.com