单片机通信或者远距离数据传输系统中做CRC校验的c源程序。可以嵌入到系统中直接运用。...

日本北斗公司开发的usb鼠标源程序单片机为HITACHI--H8S2215-developed by usb mouse source for Hitachi microcontroller-- H8S2215

AVR MEGA162开发摩托罗拉产GPS模块FCOnOre,价格比较低廉，性能好，但需要进行初始化后才能工作，代码功能是初始化模块及接收GPS信息，也包括部分的SPI双机通信-The development of AVR MEGA162 Motorola GPS module production FCOnOre, relatively low price, performance good, but it needs to initialize in order to work, the code function is to initialize the module and receive GPS information, but also part of the SPI double machine communication

《单片机C语言编程与实例》的代码,使用keil编程环境,供大家参考- Microcontroller C programming language and examples of code, using keil programming environment, for your reference

John Catsoulis编写的Designing Embedded Hardware 。介绍了汇编语言，SPI,I2C,串口，usb,网口等硬件电路设计。模拟电路设计，AVR单片机原理-John Catsoulis prepared Designing Embedded Hardware. Introduction of assembly language, SPI, I2C, serial, usb, network hardware such as circuit design of the mouth. Analog circuit design, AVR Singlechip Principle

两相四线步进电机驱动,控制程序.C语言编写-Two-phase four-wire stepper motor driver and control program. C language

usb固件程序LCD1602_GPIF_Firmwire-usb firmware LCD1602_GPIF_Firmwire

时钟芯片ds12c887线片驱动程序，可直接应用-Clock Chip ds12c887-ray driver, can be directly applied

基于ARM7的GPRS实验代码(LCD320,键盘,I2C总线)-ARM7-based GPRS experimental code (LCD320, keyboard, I2C Bus)

STC单片机IO口模拟RS232测试程序,Keil Cx51应用开发技术中的程序主要的功能是在利用串口调试工具发送一个8bit的数据，而后单片机接收后把这个数据发送给模拟串口-STC Single-chip analog IO port RS232 test procedures, Keil Cx51 technology application development process is essentially the function is in the use of serial debug tools send an 8bit data, and then after the single-chip receive the data sent to the simulation of serial

SPI是一个环形总线结构，由ss（cs）、sck、sdi、sdo构成，其时序其实很简单，主要是在sck的控制下，两个双向移位寄存器进行数据交换。 假设下面的8位寄存器装的是待发送的数据10101010，上升沿发送、下降沿接收、高位先发送。 那么第一个上升沿来的时候 数据将会是sdo=1；寄存器=0101010x。下降沿到来的时候，sdi上的电平将所存到寄存器中去，那么这时寄存器=0101010sdi，这样在8个时钟脉冲以后，两个寄存器的内容互相交换一次。这样就完成里一个spi时序。 -SPI bus is a ring structure, by ss (cs), sck, sdi, sdo composition, its timing is actually very simple, mainly under the control of the sck and two bi-directional shift register for data exchange. Assuming the following 8-bit register is loaded to send the data to be 10,101,010, rising to send, receive falling edge, high first sent. Well, the first rising edge to the time data will be sdo = 1 register = 0101010x. Falling edge comes, sdi on the level will be stored to the register, then register at this time = 0101010sdi, so 8 clock pulse later, the contents of two registers to exchange time. This will be completed in a spi timing.