this is resouse of gps reciever.

高精度实时时钟－SD2001驱动程序 用于威帆电子SD200X系列IC驱动-high-precision real-time clock-driven procedures for SD2001 Granville sails electronic SD200X Series Driver IC

在Power-I 51 Mini开发板上，基于89C51单片机开发的数字音乐盒，可以实现上一首下一首，播放，暂停，停止，的按键功能，并有数码显示时间，开机画面和曲号。-in the Power- I 51 Mini development board. 89 C51 microcontroller based on the development of the digital music player, can be achieved on the first one the next broadcast, suspension, stop, The function keys and a digital display, startup screen, and song.

学习C51的同学， 可以看看这个 ， 有了这个， 保你学习进度可以提升3成速度。-If you wanna learn C51 more fast, this resoure maybe give you a helper.

本文介绍了AT89C2051单片机的性能和特点，并在分析了超声波测距原理的基本系统框图。该设计系统经校正后，其测量精度可达0.1米-This paper introduces the AT89C2051 MCU performance and features, and the analysis of the basic principle of ultrasonic distance measurement system block diagram. The design system has been corrected, the measurement accuracy up to 0.1 meters

该文档包含了keilc常用的子程序，共有２５个运算类代码，非常实用．-This document contains commonly used keilc subprogram, a total of 25 computing category code, very useful.

本讲义介绍单片机的8个应用例子，来说明如何应用已经学到的知识，结合具体对象的特殊要求，设计单片机的应用电路，阐述单片机的应用方法和设计步骤。 -the overhead introduced SCM eight Application examples to illustrate how to apply the knowledge learned. with the specific object of the special requirements, design the application MCU circuit, described the SCM application and design steps.

对4x4键盘进行扫描并将结果送数码管显示

19264的显示驱动程序，已经调试通过了-19264 display driver，Debugging has been adopted

集成CAN总线的单片机连接图，包括ad转换，电源处理，通过232与主机的通讯--An SCM connection graph of integrated CAN bus, including ad conversion , power treatment and the communication with main machine by 232.

这是致远电子 MagicARM2410实验箱上基础实验的步进电机编程原代码-This is the electronic MagicARM2410 Jhihyuan me on the basis of experimental trials stepper motor programming source code