常用pcb库文件，方便进行电路开发，protel99格式的

在51单片机下44780液晶显示块的编程实例。-Under 44,780 in the 51 single-chip LCD block programming examples.

用于C51上的modbus协议，经测试可运行，但还不完善-C51 for the Modbus protocol, the tests will be run, but still not perfect

ppt文件，介绍了瑞萨公司的主要嵌入式系统产品系列，以及M16C单片机的性能指标与结构特点 -ppt files, introduced the company s principal Renesas Embedded Systems product line, as well as the M16C MCU performance and structural characteristics

单片机4×8矩阵键盘的源程序，可以直接使用，并可以选择松手返回和不松手返回-Single-chip 4 × 8 matrix keyboard source code can be used directly, and can choose to let go to return and the return of不松手

51单片机C语言多种点阵屏驱动程序（开发软件为keil C ---8字点阵屏左移程序，64_16点阵屏驱动程序，上移显示程序，左移显示程序）51 monolithic integrated circuit C language many kinds of lattice screen driver (develops the software is keil C ---8 character lattice screen left shift procedure, the 64_16 lattice screen driver, uppers shift the display sequence, the left shift display sequence -51 Singlechip C language a variety of dot-matrix screen driver (development of software for keil C--- 8 character dot matrix screen left procedures 64_16 dot-matrix screen driver, on the shift display program, the left display program) 51 monolithic integrated circuit C language many kinds of lattice screen driver (develops the software is keil C--- 8 character lattice screen left shift procedure, the 64_16 lattice screen driver, uppers shift the display sequence, the left shift display sequence

ATmega单片机开发CAN总线程序，有用！-ATmega MCU development of CAN-bus program, useful!

单片机Com端口仿真，有程序及仿真原理图-Com-port single-chip simulation, there are procedures and simulation schematic

本方法的基本思想就是利用单片机具有的PWM端口，在不改变PWM方波周期的前提下，通过软件的方法调整单片机的PWM控制寄存器来调整PWM的占空比，从而控制充电电流-The basic idea of this method is the use of microcontroller has the PWM ports, without changing the PWM square wave cycle, under the premise of the method to adjust by software MCU PWM control registers to adjust the PWM duty cycle and thus control the charge current

max187的读取操作 用1602来显示！-max187 with 1602 of the read operation to display!

1602 液晶显示子程序 可直接套用 代替数码管显示必备-Liquid crystal display subroutine 1602 can be directly applied to replace the digital display must