Pwm control on an example, based on 8051f020 an example.

AVR图形信号发生器-AVR graphics signal generator

本装置是一个以HT46R71D 为主芯片，配合传感器组成的汽车轮胎气压检测装 置，最终取高三位有效值于LCD 显示，有四种显示单位供切换（Psi、Bar、Kpa、 Kgf/cm2）。本装置仅为参考范例，使用时，为提高准确度，建议多量测些组数 据来构建Sensor Output Voltage - Discharge Time (V-T)表格，并作相应校准。-This device is a HT46R71D-based chips, with sensors detecting vehicle tire pressure devices, and ultimately take the high-three RMS in LCD display, there are four types of display units for switching (Psi, Bar, Kpa, Kgf/cm2). Only reference to an example of the device, when used to improve the accuracy of the proposed多量measured set of data to build more Sensor Output Voltage- Discharge Time (VT) forms, and the corresponding calibration.

此代码是凌阳61板实验LCD显示汉字的原程序-This code is a 61 plate experiment Sunplus LCD display Chinese characters, the original procedure

16*64位点阵点 阵显示汉字程串口输出字符数据，P2口输出行扫描信号,P0_0输出595锁存信号-16* 64 dot matrix display Chinese characters lattice-serial output character data, P2 mouth output signal scanning, P0_0 595 latches the output signal

ep2c5q208c8开发板原理图（完整），pdf文件。-ep2c5q208c8 development board schematic diagram (complete), pdf file.

LM24064D液晶显示屏.-LM24064D LCD display.

不错的液晶资料，带有实例程序可以学习单片机下的编程方法。-LCD good information, with examples of procedures to learn the programming method of single-chip microcomputer.

使用的同步串行三线SPI 接口，可以方便的连接采用SPI 通信协议的外围或另一片AVR 单片机，实现在 短距离内的高速同步通信。ATmega128 的SPI 采用硬件方式实现面向字节的全双工3 线同步通信，支持主 机、从机和2 种不同极性的SPI 时序，通信速率有7 种选择，主机方式的最高速率为1/2 系统时钟，从机方式 最高速率为1/4 系统时钟。-Use three-wire SPI synchronous serial interface, can be used to facilitate the connection of the external SPI communication protocol or another chip AVR microcontroller, realize in the short distance high-speed synchronous communication. ATmega128

c8051f020 cp1 的简单应用 -c8051f020 cp1 simple application

能够学会用单片机控制打印，还能深入了解单片机内部机理。-to learn how to use the SCM control print, but also in-depth understanding of the internal mechanism of SCM.