本软件是单片机通讯的主程序，通过串口传送数据。-This software is the main single-chip communications, through the serial transmission of data.

4442卡的底层操作程序 AT45D041大容量IC卡 读写程序-4,442 cards bottom procedures AT45D041 large-capacity IC card reader procedures

单片机系统上电后，P0 口和 P1 口都被清 0。然后，你规定一个由 6 个数字构成的序列（每个数字从 0～F 中选取），比如 E、8、9、0、7、F。然后每次当单片机检测到外部中断 0发起中断时间时，读取 P0 口和 P1 口上的状态值，当连续 6 次外部中断事件的对应的数字序列构成你所设定的序列后（举例来说，如果 P0.0 是 1，P0 和 P1 的其他管脚是 0，那么我们称为检测到一次数字 0），从串口打印输出一幅类似下图的 16×16 的ASCII码的圣诞树图片。-Single-chip microcomputer system after power, P0 and P1 mouth I have been ching 0. Then you set a six figure constituted by the sequence (each number from 0 ~ F in selected), for example, E, 8,9,0,7, F. And then each time a single-chip detects external interrupt 0 initiated interruption time, I read the P0 and P1 mouth on the state value, when a row 6 times the corresponding external interrupt events constitute digital sequence set your sequence (for example example, if P0.0 is 1, P0 and P1 of the other pin is 0, then we called a number of detected 0), a printout from the serial port under similar 16 × 16 map of the ASCII code of the Christmas tree图片.

用89c51单片机与USBD12结合的电路图和源程序.. -with 89c51 SCM and USBD12 combination of circuit and the source ..

CC1100射频电路的线路板和已经调通的源码-CC1100 RF circuit and the circuit board s source code has been transferred

在单片机中，处理串口的子程序-in SCM, the serial processing subroutine

单片机普通io口模拟标准串口，可以实现各种波特率传输。-Ordinary single-chip analog io standard serial port, you can realize all kinds of baud rate transmission.

GSM通讯的C语言源程序代码，能够实际应用，需用户自行修改-GSM communications C language source code, the practical application can be user modified

eeprom24c02程序代码，经测试可以使用，分享一下-eeprom24c02 program code, have been tested can use, share

单片机音频信号处理软件1.-SCM audio signal processing software 1.