典型的算法可以用于各种类型的

MODBUS驱动，已经使用，从机方式，RTU，CRC校验-modbus drive ,c/s struct,rtu&ascii

计算机课程设计一件很详细--Very detailed.

这个例子描述了如何配置和使用GPIOs通过STM32F1xxHAL_API。PD.07, PD.13, PD.03 and PD.04 IOs (configured in output pushpull mode)toggle in a forever loop.On STM3210C-EVAL RevC board these IOs are connected to LED1, LED2, LED3 and LED4.非常适合使用STM32做跨平台编程。对初学STM32的开发人员了解GPIO的配置很有帮助。

随着电子技术的迅猛发展，具有耗电少、亮度高、体积小等特点的液晶显示器被广泛应用于嵌入式系统中。S3C2410是三星公司开发的一款以ARM920T为核心的16/32位嵌入式处理器。它主要面向手持设备以及高性价比、低功耗的应用。LTS350Q1-PE1是三星电子公司生产的一款非晶硅有源矩阵TFT-LCD，它具有功耗低、亮度高和体积小等特点，目前在嵌入式设备中应用非常广泛。 -With the rapid development of electronic technology, with low power consumption, high brightness, small size and other characteristics of the liquid crystal displays are widely used in embedded systems. Samsung S3C2410 is developed with ARM920T core, a 16/32-bit embedded processor. It is mainly for handheld devices, as well as high cost, low-power applications. LTS350Q1-PE1 is produced by Samsung Electronics a-Si active-matrix TFT-LCD, it has low power consumption, high brightness and small size characteristics, present a wide range of embedded device applications.

74HC165N级级联键盘 状态机解码 -74HC165 keyboard state machine decoder

可运行于8051的BASIC的asm原文件-run in the 8051 original BASIC asm documents

自动售货机控制系统设计 要求： 设计制作一个自动售货机控制系统。 该系统能完成货物信息存储，进程控制，硬币处理，余额计算，显示等功能。 该系统可以管理四种货物，每种的数量和单价在初始化时输入，在存储器中存储。用户可以用硬币进行购物，按键进行选择。 系统根据用户输入的货币，判断钱币是否够，钱币足够则根据顾客的要求自动售货，钱币不够则给出提示并退出。 系统自动的计算出应找钱币余额、库存数量并显示。 -Vending machine control system design requirements: Design a vending machine control system. The system can complete cargo information storage, process control, coin handling, balance calculation, display and other functions. The system can manage four kinds of goods, the quantity and unit price of each in the initialization input, stored in memory. Users can use coins shopping button to choose. The monetary system based on user input to determine whether enough money, coins, according to customer requirements is sufficient Vending, coins were not given prompt and exit. The system automatically calculate the balance should be looking for coins, inventory number and displayed.

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Bluetooth CSR I2C操作示例代码-I2C operation code examples

基于ARM9的LINUX下的按键驱动程序，代码中有详细的注释，对于在此基础之上的二次开发或者是直接调用都非常方便！-ARM9 based LINUX keys under the driver, a detailed code of the Notes for the foundation of the second development is a direct call or very convenient!