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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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Online to see a car obstacle avoidance procedures. The procedure is applied Sing...
网上看到的一个避障小车的程序。该程序是avr单片机上应用的。-Online to see a car obstacle avoidance procedures. The procedure is applied Singlechip avr.
- 2022-03-19 00:47:52下载
- 积分：1
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This procedure for single
此程序为单片机编程，主要实现无线收发功能，所使用的无线芯片为PTR4000。-This procedure for single-chip programming, the main function of wireless transceivers used for wireless chips PTR4000.
- 2022-01-27 14:06:17下载
- 积分：1
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如何使用USB总线接口在单片机系统中实现一个虚拟串口的原理和实现过程。在设计中，软件部分采用USB的CDC类标准来实现虚拟串口，这样可以使用操作系统（Windo...
如何使用USB总线接口在单片机系统中实现一个虚拟串口的原理和实现过程。在设计中，软件部分采用USB的CDC类标准来实现虚拟串口，这样可以使用操作系统（Windows,Linux）自带的驱动程序；在硬件设计中，使用自带USB从设备接口的AT89C5131单片机，提高了系统的集成度和可靠性-How to use the USB bus interface in single-chip realization of a virtual serial port system, the principle and implementation process. In the design, the software part of the adoption of USB-CDC class standards to achieve a virtual serial port, so you can use the operating system (Windows, Linux) comes with the driver in hardware design, the use of own USB interface from the device chip AT89C5131 machine, to improve the system integration and reliability of
- 2023-05-03 07:05:03下载
- 积分：1
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MSP430F1611 serial serial procedures procedures MSP430F1611
MSP430F1611串口程序 MSP430F1611串口程序-MSP430F1611 serial serial procedures procedures MSP430F1611
- 2022-03-10 09:43:18下载
- 积分：1
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2401_Quick_Dev无线模块的源代码_source code for AVR 8515
2401_Quick_Dev无线模块的源代码_source code for AVR 8515-2401_Quick_Dev wireless module
- 2022-01-31 12:15:08下载
- 积分：1
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用于驱动24L01芯片的函数代码，老外写的，很漂亮！
用于驱动24L01芯片的函数代码，老外写的，很漂亮！-24L01 chip used to drive the function code, written by a foreigner, very beautiful!
- 2022-03-24 08:44:29下载
- 积分：1
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随着7温度传感器DB18B20实验
温度传感DB18B20七段显示实验
- 2022-04-06 09:41:14下载
- 积分：1
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24c64，存储器c51,I2c驱动程序
24c64，存储器c51,I2c驱动程序-24c64, memory, c51, I2c Driver
- 2022-12-03 18:55:03下载
- 积分：1
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温度计原理图和源码
温度计原理图和源码-thermometer schematic and source
- 2023-04-15 00:25:03下载
- 积分：1
