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參數資料
型號: W79E201A16PN
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQCC44
封裝: ROHS COMPLIANT, PLASTIC, LCC-44
文件頁數: 86/87頁
文件大小: 818K
代理商: W79E201A16PN
W79E201
- 86 -
MOV
R7,#FFH
MOV
TL0,R6
MOV
TH0,R7
MOV
DPTR,#0H
; The start address of sample code
MOV
R2,#0H
; Target low byte address
MOV
R1,#0H
; Target high byte address
MOV
SFRAH,R1
; SFRAH, Target high address
MOV
SFRCN,#00H ; SFRCN = 00H, Read AP Flash EPROM
READ_VERIFY_64K:
MOV
SFRAL,R2
; SFRAL = LOW ADDRESS
MOV
TCON,#10H
; TCON = 10H, TR0 = 1,GO
MOV
PCON,#01H
INC
R2
MOVX A,@DPTR
INC
DPTR
CJNE
A,SFRFD,ERROR_64K
CJNE
R2,#0H,READ_VERIFY_64K
INC
R1
MOV
SFRAH,R1
CJNE
R1,#0H,READ_VERIFY_64K
;******************************************************************************
;* PROGRAMMING COMPLETLY, SOFTWARE RESET CPU
;******************************************************************************
MOV
TA,#AAH
MOV
TA,#55H
MOV
CHPCON,#83H
; SOFTWARE RESET. CPU will restart from AP Flash EPROM
ERROR_64K:
DJNZ
R4,UPDATE_64K
; IF ERROR OCCURS, REPEAT 3 TIMES.
; IN-SYST PROGRAMMING FAIL, USER'S PROCESS TO DEAL
WITH IT.
.
.
.
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