Sunplus MCU simulate SPI bus function

AT89C4051单片机的产品手册，详细地说明了AT89C4051单片机的各项性能指标、产品结构和工作原理。-AT89C4051 microcontroller product manuals, detailed description of the AT89C4051 MCU performance, product structure and working principle.

键盘扫描的一种方法经过调试可以运行!键盘扫描的一种方法经过调试可以运行-A method of scanning the keyboard after debugging can run! Keyboard scan after a method of debugging can run

自己现在用的51系列单片机下载线，用74HC373芯片 PCB-himself with the 51 series microcontroller downloaded line with 74HC373 chip PCB

这是52单片机串口调试程序，通过此程序，可以使单片机于PC机通信-This is the 52 single-chip serial debugging process, through this program will enable single-chip communication to the PC

单片机实时多任务交通控制程序。 包括ABSTRACT.TXT、GETLINE.C、README.C、SERIAL.C、TRAFFIC.C、等代码源文件-Single-chip multi-task real-time traffic control procedures. Including ABSTRACT.TXT, GETLINE.C, README.C, SERIAL.C, TRAFFIC.C, such as source code files

一个单片机学习的网站-a microcontroller learning website

课程设计做的基本程序，可实现串口通信，定时，键盘扫描等功能！-Curriculum design to do the basic procedures can realize serial communication, timing, keyboard scanning and other functions!

使用RTX-51 tiny操作系统的em12864液晶驱动程序-use RTX-51 operating system em12864 tiny LCD Driver

仪器仪表键盘显示模拟系统，用AT89S52芯片作为系统的CPU，控制系统的按键及显示器部分。用8路同相三态双向总线收发器74LS245芯片驱动LED。4X4矩阵键盘作为系统人机交互的重要部分，用于向单片机应用系统输入数据或控制信息，设计4X4矩阵键盘分别对应键码“0-F”。系统可以实现的基本功能包括开机LCD液晶屏幕显示“大专05电子信息X班XXX毕业设计”信息；按下任意一个按键，LCD液晶屏幕显示相应按键的信息。在基本功能的基础上还增加了一个扩展功能，即增加一个LED数码管同步显示相应键码-Show the simulated keyboard instrumentation systems, using AT89S52 chip as a system CPU, system control buttons and display parts. With 8-phase three-state bidirectional bus transceiver 74LS245 chip-driven LED. 4X4 matrix keyboard system as an important part of human-computer interaction, single-chip microcomputer application system used to input data or control information, the design of 4X4 matrix keyboard key code corresponding to

PCA CEX0为高速输出模式PCA CEX4 捕捉模式 测试程序-PCA CEX0 for high-speed output mode to capture mode PCA CEX4 test procedures