单片机中的定时器模块，在CVAVR中已实现。

用C51实现MCS51系列单片机外接ROM扩充--Using C51, it implements external ROM expansion for MCS51 series SCM.

本文主要编译出lcd的基本程序，还有字模的使用方法 -In this paper, compile a lcd basic procedures, as well as the use of matrix methods

硬件电路液晶显示模块1602引脚程序。初学者必备-Hardware circuit pin LCD module process 1602. Beginners must

ADE7758的相关程序，包括对ADE7758的读写，以及校准程序-ADE7758 related procedures, including reading and writing on the ADE7758, and the calibration procedure

一个实用的LED条型显示屏程序，采用PHLIPS P89C51RD2芯片，LED显示驱动板为1/16分扫。本程序已经成功应用于多种场合-A practical LED bar display procedures PHLIPS P89C51RD2 chip, LED display driver board for 1/16 sweep. This procedure has been successfully applied to many occasions

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

PHILIP驱动器PCF8576驱动程序，可驱动4×40个点-PHILIP drive PCF8576 driver can drive 4 × 40 points

Real Time Operating Systems Real-Time Systems - Issues-Real Time Operating Systems Real-Time Systems- Issues

30路遥控开关,按0-30个键分别点亮p0.0-p3.5的灯,32键全灭 可以用此外接驱动后控制30路开关！ 遥控器端口p3.7-30 Road remote control switches, keys, respectively, by 0-30 months p0.0-p3.5 lit the lamp, 32-key body can also take control of 30 after the driver switch! Remote control port p3.7

c8051f020的fyd12864 c程序 keilc-C8051F020 s fyd12864 c procedures keilc