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STC12C0154 Datasheet(PDF) 36 Page - List of Unclassifed Manufacturers

Part # STC12C0154
Description  STC12C2052AD
PDF  71 Pages
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Manufacturer  ETC1 [List of Unclassifed Manufacturers]
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STC12C0154 Datasheet(HTML) 36 Page - List of Unclassifed Manufacturers

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宏晶科技:www.MCU-Memory.com   Mobile:13922805190(姚永平)   Tel:0755-82948409    Fax: 0755-82944243
宏晶科技:专业单片机 / 存储器供应商   www.MCU-Memory.com   STC12C2052AD 系列 1T 8051 单片机中文指南
36
DATA_IS_DEBUG_DATA:
    MOV
 P1,  #01111111B  ; (DATA_FLASH_START_ADDRESS) = #5A, 亮 P1.7
    LCALL  Delay
;延时
    MOV
 A, 40H   ;值从 40H 单元送 ACC
    CPL    A
    MOV    P1,A    ;数据是对的,送 P1 显示
WAIT1:
    SJMP    WAIT1   ;数据是对的,送 P1 显示,并在此停止
DATA_NOT_EQU_DEBUG_DATA:
    MOV    P1,  #11110111B ;(DATA_FLASH_START_ADDRESS) != #5A, 亮 P1.3
LCALL Delay
;延时
    MOV
 A,   40H  ;值从 40H 单元送 ACC
    CPL    A
    MOV    P1,  A    ;数据不对,送 P1 显示
    LCALL  Delay
;延时
    MOV    DPTR, #DATA_FLASH_START_ADDRESS
    ACALL  sector_erase  ;擦除扇区, (DATA_FLASH_START_ADDRESS) != #DEBUG_DATA
    MOV    DPTR, #DATA_FLASH_START_ADDRESS
    MOV    A,    #DEBUG_DATA           ;写入 flash 的数据为 DEBUG_DATA
    ACALL  byte_program                ;字节编程
    MOV    P1,   #11011111B            ;先亮 P1.3 ,再亮 P1.5
WAIT2:
    SJMP   WAIT2       ;字节编程后在此停止
;************************************************
;------------------------------------------------
;读一字节
;调用前需打开 IAP 功能
;入口:DPTR = 字节地址
;返回:A = 读出字节
byte_read:
    MOV     ISP_CONTR,  #ENABLE_ISP     ;打开 IAP 功能, 设置 Flash 操作等待时间
    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      EA
    MOV     ISP_TRIG,   #46H            ;Trigger ISP processing
    MOV     ISP_TRIG,   #0B9H           ;Trigger ISP processing
    NOP
    MOV     A,   ISP_DATA               ;数据在 ISP_DATA
    SETB    EA
;Now in processing.(CPU will halt here before completing)



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