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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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这是一个基于89C51单片机的简易信号发生器的源程序，程序代码由C语言编写...
这是一个基于89C51单片机的简易信号发生器的源程序，程序代码由C语言编写-This is an 89C51 microcontroller based on the simplicity of the source signal generator, code written in C
- 2022-04-11 08:37:37下载
- 积分：1
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C51写的串口编程的范例，写串口的兄弟可以参考！
C51写的串口编程的范例，写串口的兄弟可以参考！-C51 write serial programming paradigm, write serial port can refer to the brothers!
- 2022-04-10 23:55:13下载
- 积分：1
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PIC18F family some LCD driver
Microchip PIC18F 设备驱动 LCD部分-PIC18F family some LCD driver
- 2022-08-16 15:37:56下载
- 积分：1
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HT1623应用文档，LCD解决方案，大家要的赶快下载啊
HT1623应用文档，LCD解决方案，大家要的赶快下载啊-HT1623 application documents, LCD solutions, we have to get the download ah
- 2022-02-04 20:16:09下载
- 积分：1
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based SCM oven temperature Automatic Detection System Research and Design need t...
基于单片机的烘炉温度自动检测系统的研究与设计 需要下载CAJViewer6.0-based SCM oven temperature Automatic Detection System Research and Design need to download CAJViewer6 .0
- 2023-04-18 03:25:02下载
- 积分：1
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c8051f340 USB传输 固件驱动， c8051f340 USB传输 固件驱动，
c8051f340 USB传输 固件驱动， c8051f340 USB传输 固件驱动，-transmission c8051f340 USB drive firmware, c8051f340 USB transmission firmware-driven,
- 2022-02-03 03:01:49下载
- 积分：1
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单片机控制液晶显示汉字的程序
单片机控制液晶显示汉字的程序-SCM Chinese character LCD control procedures
- 2023-01-12 00:20:04下载
- 积分：1
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16* 2 LCD driver output and the string contains the character output function ca...
16*2液晶显示驱动程序，包含字符输出和字符串输出函数，可直接使用-16* 2 LCD driver output and the string contains the character output function can be used directly
- 2023-08-19 03:50:03下载
- 积分：1
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DS18B20+LCD1602 + AT24C02的智能温度控制系统的源代码和…
DS18B20+LCD1602+AT24C02智能温度控制系统源程序和PROTEUS仿真-DS18B20+ LCD1602+ AT24C02 intelligent temperature control system source code and the PROTEUS simulation
- 2023-07-29 03:35:03下载
- 积分：1
