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由8051组成的单片机系统通常情况下,P0口分时复用作为地址、数据总线,P2口提供A15...
由8051组成的单片机系统通常情况下,P0口分时复用作为地址、数据总线,P2口提供A15-A8即高8位地址,P3口用作第二功能,只有P1口通常用作I/0口。P1口是8位准双向口,它的每一位都可独立地定义为输入或输出,因此既可作为8位的并行I/O口,也可作为8位的输入输出端。当工作在输入方式时,对应位的锁存器必须先置1,才能正确地读到引脚上的信号,否则,执行读引脚指令时,若对应位的锁存器的值为0,读的结果永远为0。-By 8051, composed of single-chip microcomputer system under normal circumstances, P0 timeshare I reuse as address, data bus, P2 I provide A15-A8 high eight address, P3 mouth for the second function, I usually only P1 for I/0 I. P1 I was eight quasi-two-way port, it can be independent of each and every defined as input or output, it can be used as 8-bit parallel I/O port, can also be used as 8-bit input and output side. When the work in the input, the corresponding bit latch must first buy one in order to correctly read the signal pin, or pin the implementation of reading instruction, if the corresponding bit latch the value of 0, Reading the results of Forever to 0.
- 2023-08-10 04:55:03下载
- 积分:1
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explain in detail the design of microcontroller interference problems
详细地讲解了单片机设计中的抗干扰问题-explain in detail the design of microcontroller interference problems
- 2022-03-06 05:43:46下载
- 积分:1
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基于arm单片机LPC2134上液晶显示器1602驱动源程序开发
基于arm单片机LPC2134上液晶显示器1602驱动源程序开发-Arm based on the LPC2134 Single-chip LCD driver 1602 source code development
- 2023-07-03 22:50:03下载
- 积分:1
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MDK learning LCD_1620.rar, I wish you all to learn and progress! ! MDK learning...
MDK学习之LCD_1620.rar,祝大家学习进步!!MDK学习之LCD_1620.rar,祝大家学习进步-MDK learning LCD_1620.rar, I wish you all to learn and progress! ! MDK learning LCD_1620.rar, I wish you all a learning progress
- 2022-07-13 22:55:26下载
- 积分:1
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单片机串口通讯源程序,具体功能经过测试,请大家
单片机串口通讯源程序,具体功能经过测试,请大家-microcontroller serial communication program, the specific function of the test, please s
- 2022-11-23 19:20:03下载
- 积分:1
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基于CY7C68013A的mouse+keyboard混合USB外设应用范例。本套代码使用多个报表描述符实现复合设备。与之相对的另一种方案是使用多个interf...
基于CY7C68013A的mouse+keyboard混合USB外设应用范例。本套代码使用多个报表描述符实现复合设备。与之相对的另一种方案是使用多个interface,该方案另行上传。-This project focuses on building a mouse+ keyboard hybrid USB device with the popular Cypress CY7C68013A chip. Implementation is based on a multiple ReportDescriptor solution. Please refer to CY3684 dev kit documentation for more details regarding hardware platform.
- 2022-02-14 07:58:45下载
- 积分:1
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ma12864 the development of procedures to good use, you can give it a try, if pos...
ma12864的开发程序能够很好的使用,您可以试试看,如果可以的,就-ma12864 the development of procedures to good use, you can give it a try, if possible, on the
- 2023-01-25 15:50:36下载
- 积分:1
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12864LCD显示单片机51程序学习实践经验丰富工程师编写实机通过...
12864LCD显示单片机51程序学习实践经验丰富工程师编写实机通过-51 procedures showed 12864LCD Singlechip experienced engineers to study and practice the real machine, through the preparation of
- 2022-02-22 00:26:12下载
- 积分:1
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PIC16 machine code examples, you want to try friends can test
PIC16机的代码范例,
想要试一试的朋友可以试验-PIC16 machine code examples, you want to try friends can test
- 2022-03-19 20:30:17下载
- 积分:1
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自己编写的一个应用于1602液晶的秒表小程序,使用了T0定时器功能,大家喜欢的可以...
自己编写的一个应用于1602液晶的秒表小程序,使用了T0定时器功能,大家喜欢的可以-I have written a stopwatch used in small liquid crystal 1602, the use of the T0 timer function, we can look at like
- 2023-06-03 15:00:03下载
- 积分:1