DDS芯片9851的驱动程序~用来产生不同频率的正弦波波形~

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.

c51testcomm单片机c51串口中断.rar-c51testcomm interrupt. Rar

利用单片机AT89S51与adc0809设计一个数字电压表，能够测量0－5V之间的直流电压值，四位数码显示，但要求使用的元器件数目最少-AT89S51 with adc0809 use of single-chip design of a digital voltage meter, capable of measuring between 0-5V DC voltage value, four digital display, but requires the use of minimum number of components

基于18b20和单片机控制的温度采集及显示系统-18b20-based single-chip microcomputer to control the temperature and the acquisition and display system

zlg7290加液晶显示，本次拓展了20个按键，每按一键会在液晶上显示不同的数值。已通过硬件实现。-zlg7290 plus LCD display, this extends the 20 keys, each press a button in the LCD display different values. Has passed the hardware implementation.

用单片机对24c02进行读写操作。简单易懂。适合初学者使用。-With the 24c02 microcontroller for read and write operations. Easy to understand. Suitable for beginners.

介绍了液晶显示模块基本原理及其技术特性，与单片机的进行接口的具体电路，同时给出了其编程方法和程序代码．-Introduced the basic principles of liquid crystal display module and its technical characteristics, and MCU interface to the specific circuit, at the same time gives the methods and procedures of its programming code.

这是初学单片机实验程序，希望单片机初学者快点进步-This is a beginner Singlechip experimental procedures Singlechip beginners progress quickly

CodeVisionAVR C Library Functions Reference CodeVisionAVR C 库函数介绍 译自CodeVisionAVR C Compiler Help-CodeVisionAVR C Library Functions ReferenceCodeVisionAVR C library function translated from Introduction CodeVisionAVR C Compiler Help

附件中是在keil for arm下编译的ARM程序――LCD万年历-In the annex is the keil for arm under the ARM compiled programs- LCD calendar