PIC18F4550 SD卡，USB

用C51实现的拼音输入法,这是改写的网友 embuffalo、独步上载在www.21ic.com自由发布区的由张凯原作的51上的拼音输入法程序。 原作使用了一个二维数组用以查表，我认为这样比较的浪费空间，而且每个字表的索引地址要手工输入，效率不高。所以我用结构体将其改写了一下。就是大家现在看到的这个。 因为代码比较的大，共有6,000多汉字，这样就得要12,000 byte来存放GB内码，所以也是没办法的 :-( 编译结果约为3000h,因为大部分是索引表，代码优化几乎无效。 在Keil C里仿真芯片选用的是华邦的W77E58，它有32k ROM, 256B on-chip RAM, 1K on-chip SRAM (用DPTR1指针寻址,相当于有1K的片上xdata)。条件有限，没有上片试验，仿真而已。 打算将其移植到AVR上，但CodeAVRC与IAR EC++在结构体、指针的定义使用上似乎与C51不太一样，现在还未搞定。还希望在这方面有经验的网友能给予指导。-C51 with the Pinyin input method, which is rewritten netizens embuffalo. Unrivaled www.21ic.com available in the free publication of the original work by Kai-51 on the Pinyin input method procedures . Appreciate the use of a two-dimensional array for the look-up table, I think this is a waste of space. Each of the characters but the index table to manually input address, efficiency is not high. I use the structure to rewrite a bit. We see now is this. Because the code comparison, a total of 6, more than 000 Chinese characters, this must

AVR_Meag8模拟USB接口，并实现数模采集ADC，包含PC机端源码-USB interface AVR_Meag8 analog and digital-analog acquisition realize ADC, includes PC-side source

单片机外部中断 串口中断 定时中断 单片机外部中断 串口中断 定时中断 -micro conctol micro conctol micro conctol micro conctol

MSP 430 计算机USB接口之间的通讯代码-MSP 430 computer communication between the USB interface code

一个简单的时钟开发程序,显示时,分,秒!!! 可以接上数码管再加上简单的转换就可以制作为简单的电子表-Clock to develop a simple procedure, show hours, minutes and seconds!!! Can be connected to digital tube coupled with a simple conversion can create a simple e-form

ntp client, can get the current time about the lots of time zone.

SDU的字库，主要包垮一些程序代码，很好用的，希望对大家有用-SDU

arm的各种源码 包含（16c54四位LED时钟显示程序，16C84的RB口中断程序，16C84做的智能卡程序，电机速度控制，ICD仿真器的源程序，PIC单片机循环程序应用实例，led的动态显示，CAN 的调试程序，DTMF cm8770 双音频解码程序，USART 通过232通讯例程-arm contains the source code (16c54 four LED clock display program, 16C84 RB I interrupt procedures, 16C84 do smart card procedures, motor speed control, the ICD simulator source, PIC cycle application procedures, led the dynamic display, and debug procedures CAN , DTMF cm8770 dual audio decoding procedures, USARTs through the 232 communications routines

利用Verilig编写CPLD读写EEPROM（74LC21）程序-Verilig prepared to use CPLD to read and write EEPROM (74LC21) procedures

max7219仿真及代码,已经经过调试,供大家参考使用,内有仿真源文件-max7219 simulation and code, had already been debugging for reference use within the simulation source files