这是教你怎么利用单片机进行音乐的播放程序，非常好用

44B0＋SL811，学习USB编程的好资料，强烈推荐-44B0+ SL811, learning programming USB good information, strongly recommended

搜集的16位AD转换芯片的技术资料及部分应用实例论文AD976、AD7655、AD73360、ads1174、cs1160、LTC2497f-Collected in 16 AD conversion chip technical data and some application examples papers AD976, AD7655, AD73360, ads1174, cs1160, LTC2497f

89C2051 + 4-digit 7-SEG led + 4-key switch c源代码-89C2051 4-digit 7- SEG led 4-c switch key source

ARM里实现 PWM ARM经典 C语言写的-ARM achieve PWM

[原创]PIC单片机计算CRC10的源码.-[original] PIC calculated CRC10 the source.

开发板自带的C8051F0404的SPI源代码。-Development board C8051F0404 of SPI

周立功 214x pack 配套光盘，含例程代码和说明文档。-Week Ligong 214x pack CD-ROM package, including code and documentation routines.

INA128/INA129精密低功耗仪表放大器的详细中文资料及经典电路例子-INA128/INA129 precision low-power instrumentation amplifier中文detailed information and examples of the classic circuit

电机控制的程序例程，方便大家在座相应的工作中应用-Motor control routine procedure to facilitate the work of everyone here the application of the corresponding

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.