USB转串口驱动程序，自己测试过，可以用的

Part IV In part II we discussed the conversion of binary numbers into decimal digits. It is sometimes useful to build circuits that use this method of representing decimal numbers, in which each decimal digit is represented using four bits. This scheme is known as the binary coded decimal (BCD) representation. As an example, the decimal value 59 is encoded in BCD form as 0101 1001. You are to design a circuit that adds two BCD digits. The inputs to the circuit are BCD numbers A and B, plus a carry-in, cin. The output should be a two-digit BCD sum S1S0. Note that the largest sum that needs to be handled by this circuit is S

IEEE 1149标准 JTAG,好东东，藏了多年了，-JTAG IEEE 1149 standard, good Dongdong, possession of years, huh

基于ADE7753电量数据采集系统的代码，代码全，功能强大-Power data acquisition system code, code full, powerful

在工业控制中，工控机（一般都基于Windows平台）经常需要与智能仪表通过串口进行通信。串口通信方便易行，应用广泛。 -In industrial control, industrial control computer (typically are based on the Windows platform) and the intelligent instrument often need to communicate through the serial port. Serial communication to facilitate easy and widely used.

兼容 FAT16 和 FAT32 文件系统的代码，代码可以移植到嵌入式资源是很方便

用AT88SC1604和IC卡读卡器（C51编写）测试表明程序可靠

基于at89s52单片机的歌曲《草原晨曲》C程序。-SCM at89s52 songs on " Prairie morning song" C program.

电台司令库演示 arduino 315/433mhz 无线通信。 电台司令库是一个重写的代码来替换旧的无线图书馆虚拟无线图书馆。 它支持更多的无线的无线电模块硬件。 另一个库是遥控开关。

使用SST89C58控制单片电子硬盘的软硬件--Hardware and software material for using SST89C58-controlled SCM hard disk.

RTXTiny2 complete source Code.