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使用IO口模拟I2C时序，包括主机、从机时序。(Using IO port simulation I2C timing, including the host, the machine timing.)

TCS3200颜色传感器测试程序以及有关说明pdf文件，测试可用讲解详细(TCS3200 yan se chuan gan qi cheng xu ji you guan shuo ming)

按键判断 进行行扫描m表示对应的行数 n表示对应的列数 对应数值亮(Judgment keystroke scan lines express the corresponding m number of rows n that corresponds to the number of rows corresponding numerical Liang)

串口与pc机通讯，51单片机例程，只需要修改io口即可实现。(Serial communication with pc, 51 MCU routine, you only need to modify the io port can be realized.)

该程序是CRC校验程序，可以查看文件的校验和，这对文件本身进行校验，也可用在其它程序中检难数据正确与否(CRC procedures can view the document and check that the document itself calibration, but also can be used in other programs Frederick hard data are correct or not)

菜单编程操作的源代码，有助于对菜单的理解。。(Menu programming operation of the source code, contribute to the understanding of the menu. .)

介绍了一种SPI从机的接口verilog编码(verilog code for spi slave )

DMX512灯管控制程序，欢迎使用，，可以换灯光颜色.rar(DMX512 lamp control program, welcome to use, can change the color of light, .Rar)

　Hittite公司以创新的设计使得其PLL产品性能优异，在相位噪声，杂散方面有着卓越表现，其芯片的高集成度使得外围电路简单，设计方便。所以随着电子技术的发展，对频率源的相位噪声性能要求越来越高，Hittite的低相位噪声PLL，在物理、天文、无线电通信、雷达、航空、航天以及精密计量、仪器、仪表等各种领域里都将大有用武之地。(The Hittite companies with innovative design makes the PLL excellent product performance, the phase noise, spurious aspects with excellence, its high integration chip makes the peripheral circuit is simple and easy design. So with the development of electronic technology, phase noise performance of frequency source is more and more high, the Hittite low phase noise PLL, in physics, astronomy, radio communication, radar, aviation, aerospace and precision measurement, instruments, meters and other fields will be great.)

模拟PWM信号控制小灯，控制二极管占空比(Analog PWM signal control light)