空调控制器中按键功能实现的子程序,包括模式设定,温度湿度设定等....

双机通信过程中采用点对点通信的从机部分示例-Two-machine communication process used in point-to-point communications from the machine part of sample

这个范例说明如何使用8051 的Port 1连接LCD显示器，PORT 3.3、P3.4和P3.5则连接到LCD显示器的控制线。程序执行时将显示出Hello Keil C和LCD display */-This example shows how to use the 8051 Port 1 to connect LCD displays, PORT 3.3, P3.4 and P3.5 are connected to the LCD display control lines. Program execution will show Hello Keil C, and LCD display* /

ModBus通信参考程序，Keil编译，学习ModBus的好工具-ModBusx protocol simulation, study well the instrument ModBus

SPI是一个环形总线结构，由ss（cs）、sck、sdi、sdo构成，其时序其实很简单，主要是在sck的控制下，两个双向移位寄存器进行数据交换。 假设下面的8位寄存器装的是待发送的数据10101010，上升沿发送、下降沿接收、高位先发送。 那么第一个上升沿来的时候 数据将会是sdo=1；寄存器=0101010x。下降沿到来的时候，sdi上的电平将所存到寄存器中去，那么这时寄存器=0101010sdi，这样在8个时钟脉冲以后，两个寄存器的内容互相交换一次。这样就完成里一个spi时序。 -SPI bus is a ring structure, by ss (cs), sck, sdi, sdo composition, its timing is actually very simple, mainly under the control of the sck and two bi-directional shift register for data exchange. Assuming the following 8-bit register is loaded to send the data to be 10,101,010, rising to send, receive falling edge, high first sent. Well, the first rising edge to the time data will be sdo = 1 register = 0101010x. Falling edge comes, sdi on the level will be stored to the register, then register at this time = 0101010sdi, so 8 clock pulse later, the contents of two registers to exchange time. This will be completed in a spi timing.

1602 4线驱动 亲自测试可用 内附 Preteus原理图-16024-line-driven test is available

WAVE6000，南京伟福的最新单片机开发环境-WAVE6000, Nanjing Wei Fu of the latest microcontroller development environment

【SoC单片机实验、实践与应用设计：基于C8051F系列】一书的光盘，里面有39个C8051F020的源码可供参考

嵌入式开发板搭建最小系统,在嵌入式开发板上，建立内核，文件系统等等，使最小系统能够在其上运行-to build the minimun system on a board, embedded software programms.you can rely on it to impletement the basic function of an embedded system

基本单片机入门基本字幕字幕字幕字幕

提出了一个由AT89C52单片机控制步进电机的实例。可以通过键盘输入相关数据, 并 根据需要, 实时对步进电机工作方式进行设置, 具有实时性和交互性的特点。该系统可应用于 步进电机控制的大多数场合。实践表明, 系统性能优于传统的步进电机控制器。-Put forward a AT89C52 single-chip stepper motor control example. Through the keyboard input data, and in accordance with the needs of real-time work on the stepper motor set up, with real-time and interactive features. The system can be applied to stepper motor control of the majority of occasions. Practice shows that system performance is superior to traditional stepper motor controller.