STC89LE53RC datasheet(130/165 Pages) STC

130 / 165 page

DATA_IS_DEBUG_DATA:

MOV

P1,

#0111111B

;(DATA_FLASH_START_ADDRESS) = #5A,

;turn on P1.7 LED

LCALL Delay

;delay

MOV

40H

CPL

MOV

P1,

;Data is right and showed in port 1

WAIT1:

SJMP

WAIT

;Stop

DATA_NOT_EQU_DEBUG_DATA:

MOV

P1,

#11110111B

;(DATA_FLASH_START_ADDRESS) != #5A,

;turn on P1.3 LED

LCALL Delay

;delay

MOV

40H

CPL

MOV

P1,

;Data is error and showed in port 1

LCALL Delay

;delay

MOV

DPTR,

#DATA_FLASH_START_ADDRESS

ACALL Sector_Erase

;Sector erase,

;(DATA_FLASH_START_ADDRESS) != #DEBUG_DATA

MOV

DPTR,

#DATA_FLASH_START_ADDRESS

MOV

#DEBUG_DATA ;Write DEBUG_DATA into Falsh

ACALL Byte_Program

;Byte-program

MOV

P1,

#11011111B

;turn on P1.3 LED first, then turn on P1.5 LED

WAIT2:

SJMP

WAIT2

;Stop here after byte-program

;****************************************************

;------------------------------------------------------------------------------

;Read one byte

Byte_Read:

MOV

ISP_CONTR,

#ENABLE_ISP

;Enable IAP/ISP function

;determine Flash wait time

MOV

ISP_CMD,

#01

;Select Read AP mode

MOV

ISP_ADDRH,

DPH

;Fill page address in ISP_ADDRH&ISP_ADDRL

MOV

ISP_ADDRL,

DPL

CLR

MOV

ISP_TRIG,

#46H

;Trigger ISP processing

MOV

ISP_TRIG,

#0B9H

;Trigger ISP processing

NOP

MOV

ISP_DATA

;Get the data in ISP_DATA

SETB

;Now in processing.(CPU will halt here before completing)

ACALL IAP_Disable

;Disable IAP function,

;clear some registers associated with ISP

RET

130

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