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STC12C2052 Datasheet(PDF) 55 Page - List of Unclassifed Manufacturers

Part No. STC12C2052
Description  STC12C2052AD
Download  71 Pages
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Manufacturer  ETC1 [List of Unclassifed Manufacturers]
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STC12C2052 Datasheet(HTML) 55 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
55
附录 C:STC12C2052AD 系列单片机 ISP 编程原理  使用说明
外部手动复位,看门狗复位,
单片机不会运行 ISP 程序
PC 机端的控制软件必需先发下载命
令流,再给单片机上电复位
PC机端控制软件为STC-ISP-V2.9Beta9及以
后的版本从 www.MCU-Memory.com 下载,如何
使用,本文相关部分有说明
单片机运行 ISP 程序,检测有无
合法下载命令流,占时几十 mS
- 几百 mS ,如无合法下载命令
流,则立即跑用户程序
单片机彻底没电
给单片机上电复位,冷起动
冷起动,单片机运行系统 ISP 监控程序
检测 P3.0/RxD 有没有合法下载命令流
下载用户程序进用户程序区
软复位到用户程序区,运行用户程序
如果已设置 P1.0/P1.1=0.0,才会判断是否下载用
户程序,则冷启动后,如 P1.0/P1.1 ≠ 0.0 ,则
直接跑用户程序,只会占时 50uS ,可忽略不计。


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