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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: 85/87頁
文件大小: 818K
代理商: W79E201A16PN
W79E201
Publication Release Date: December 16, 2004
- 85 -
Revision A2
JNZ
blank_check_loop
INC
SFRAH
MOV
A,SFRAH
CJNE
A,#0H,blank_check_loop ; end address = FFFFH
JMP
PROGRAM_64KROM
blank_check_error:
JMP
$
;*******************************************************************************
;* RE-PROGRAMMING 64KB AP Flash EPROM BANK
;*******************************************************************************
PROGRAM_64KROM:
MOV
R2,#00H
; Target low byte address
MOV
R1,#00H
; TARGET HIGH BYTE ADDRESS
MOV
DPTR,#0H
MOV
SFRAH,R1
; SFRAH, Target high address
MOV
SFRCN,#21H ; SFRCN = 21H, PROGRAM 16K AP Flash EPROM
MOV
R6,#9CH
; SET TIMER FOR PROGRAMMING, ABOUT 50
μ
S.
MOV
R7,#FFH
MOV
TL0,R6
MOV
TH0,R7
PROG_D_64K:
MOV
SFRAL,R2
; SFRAL = LOW BYTE ADDRESS
CALL
GET_BYTE_FROM_PC_TO_ACC ; tHIs prOGRAM IS BASED ON USER’S CIRCUIT.
MOV
@DPTR,A
; SAVE DATA INTO SRAM TO VERIFY CODE.
MOV
SFRFD,A
; SFRFD = data IN
MOV
TCON,#10H
; TCON = 10H, TR0 = 1,GO
MOV
PCON,#01H
; ENTER IDLE MODE (PRORGAMMING)
INC
DPTR
INC
R2
CJNE
R2,#0H,PROG_D_64K
INC
R1
MOV
SFRAH,R1
CJNE
R1,#0H,PROG_D_64K
;*****************************************************************************
; * VERIFY 16KB AP Flash EPROM BANK
;*****************************************************************************
MOV
R4,#03H
; ERROR COUNTER
MOV
R6,#FDH
; SET TIMER FOR READ VERIFY, ABOUT 1.5
μ
S.
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