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參數資料
型號: W77LE532
廠商: WINBOND ELECTRONICS CORP
元件分類: 8位微控制器
英文描述: 8 BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數: 82/85頁
文件大小: 2458K
代理商: W77LE532
Preliminary W77LE532
- 82 -
;************************************************************************
;* 4KB LDFLASH MAIN PROGRAM
;************************************************************************
ORG 100H
MAIN_4K:
MOV TA, #AAH
MOV TA, #55H
MOV CHPCON, #03H ; CHPCON = 03H, ENABLE IN-SYSTEM PROGRAMMING.
MOV SFRCN, #0H
MOV TCON, #00H
; TCON = 00H, TR = 0 TIMER0 STOP
MOV TMOD, #01H
; TMOD = 01H, SET TIMER0 A 16BIT TIMER
MOV IP, #00H
; IP = 00H
MOV IE, #82H
; IE = 82H, TIMER0 INTERRUPT ENABLED
MOV R6, #F0H
MOV R7, #FFH
MOV TL0, R6
MOV TH0, R7
MOV TCON, #10H
; TCON = 10H, TR0 = 1, GO
MOV PCON, #01H
; ENTER IDLE MODE
UPDATE_64K:
MOV TCON,#00H
; TCON = 00H , TR = 0 TIM0 STOP
MOV IP, #00H
; IP = 00H
MOV IE, #82H
; IE = 82H, TIMER0 INTERRUPT ENABLED
MOV TMOD, #01H
; TMOD = 01H, MODE1
MOV R6, #D0H ; SET WAKE-UP TIME FOR ERASE OPERATION, ABOUT 15 ms
DEPENDING ON USER'S SYSTEM CLOCK RATE.
MOV R7, #8AH
MOV TL0, R6
MOV TH0, R7
ERASE_P_4K:
MOV SFRCN, #22H
; SFRCN = 22H, ERASE 64K APFLASH0
; SFRCN = A2H, ERASE 64K APFLASH1
MOV TCON, #10H
; TCON = 10H, TR0 = 1,GO
MOV PCON, #01H
; ENTER IDLE MODE (FOR ERASE OPERATION)
;*********************************************************************
;* BLANK CHECK
;*********************************************************************
MOV SFRCN, #0H
; SFRCN = 00H, READ 64KB APFLASH0
; SFRCN = 80H, READ 64KB APFLASH1
MOV SFRAH, #0H
; START ADDRESS = 0H
MOV SFRAL, #0H
MOV R6, #FDH
; SET TIMER FOR READ OPERATION, ABOUT 1.5
μ
S.
MOV R7, #FFH
MOV TL0, R6
MOV TH0, R7
BLANK_CHECK_LOOP:
SETB TR0
; ENABLE TIMER 0
MOV PCON, #01H
; ENTER IDLE MODE
MOV A, SFRFD
; READ ONE BYTE
CJNE A, #FFH, BLANK_CHECK_ERROR
INC SFRAL
; NEXT ADDRESS
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