Embedded C programming a microcontroller electronic books

16x16LED 点阵屏源代码和电路图，可以实现上下移，左右移-Dot-matrix screen 16x16LED source code and schematics can be achieved on the lower left and right shift

AVR单片机的优化RC6 加密算法（速度快，其优化思想绝对值得学习） 在有128bytes RAM 的AVR单片机上执行 rc6 16/10/8(16 bit/10 rounds/8 bytes keys) * 对多数代码进行了 C 语言优化，对数据相关循环移位，模乘等用ASM优化 * 在4MHz无乘法器的AVR上得到平均 1172 Bytes/s的加解密速度。 * 编译器: AVR-G-AVR optimization RC6 encryption algorithm (faster, optimizing their thinking definitely worth learning) 128bytes of RAM in the AVR on the implementation of production 16/10/8 (16 bit/10 rounds/8 bytes keys)* for the majority of code optimization of the C language the data related to cycle shift, mode used by other optimization* ASM 4MHz without the multiplier be average AVR 1172 Bytes/s speed encryption and decryption.* Compiler : AVR-G

* The keyboard is assumed to be a matrix having 4 rows by 6 columns. However, this code works for any * matrix arrangements up to an 8 x 8 matrix. By using from one to three of the column inputs, the driver * can support "SHIFT" keys. These keys are: SHIFT1, SHIFT2 and SHIFT3.

基于uPSD3334单片机pwm波形产生程序，频率可调，占空比可调。可同时产生三路PWM波形。在电力电子中有极好的应用。使用Kerl开发环境-based uPSD3334 MCU pwm waveform generator procedures, adjustable frequency, duty cycle adjustable. May also have three PWM waveform. In power electronics has an excellent application. Kerl use development environment

基于MipsCPU的UART通讯程序，在u-boot下运行。-MipsCPU based on the UART communication procedures, in the u-boot run.

基于51单片机的1602液晶显示c语言及汇编程序-51 Based on the 1602 single-chip liquid crystal display c language and assembler

pt2272与2262完全仿真程序，并可以搜索全0到全1的地址码和各种振荡电阻-pt2272 with the 2262 full simulation program, and can search the entire 0 to the whole of one address code and a variety of oscillation resistor

crc16 通用程序,可在单片机或PC上运行.-crc16 common procedures, the microcontroller or PC running.

周立功公司开发的单片机手册，具体的数据手册见周立功网站下载。-Week Ligong Singlechip developed manual, the specific data manual see Zhou Ligong website.

RHM500读IC卡驱动,使用与C51系列，能读出多种IC卡芯片-THIE IS A PROGRAM OF RHM500 READ IC MODEL DRVER.IT CAN READ A IC LIKE M1S50/M1S70 AND SO ON.YOU CAN TRY IT ON C51 OR OTHERS.THAT IS ALL!