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使用软件仿真usb接口的一个程序,十分精炼,要求计算每一个指令的运行时间,很值得品味...
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C51bbs上的字模软件，试用版。做液晶显示必备软件。
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此文件为凌阳61板结合LCD的语音训练实验
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51读写24C16的源程序.....用IO口模拟I2C
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MCS
MCS-51单片机有5个中断源，其中两个是由-INT0、-INT1引脚输入的外部中断源；另外三个是内部中断源即由T0、T1的溢出引起中断和串行口发送完一个字节或接收到一个字节数据引起中断。触发外部中断有两种方式，即下降沿引起中断或低电平引起中断。当编程TCON中的ITi（i=0、1）为1时，则引起触发的方式为边沿触发方式，反之(ITi=0)为低电平触发方式。每个中断源的中断请求能否得到响应要受两级“开关”的控制，即一个总“开关”-MCS-51 single-chip has five interrupt sources, two of which are by-INT0,-INT1 pin input external interrupt source the other three internal interrupt sources from the T0, T1 overflow caused by the disruption and serial port sending or receiving end of a byte to a byte of data caused by interruption. Triggered external interrupt has two modes, namely, falling edge or low-level disruption caused disruption caused. When programming TCON in ITi (i = 0,1) for the 1:00 has been the subject of a way to trigger the way to the edge of the trigger, on the contrary (ITi = 0) for low-level trigger mode. Each interrupt source interrupt request can be subject to levels in response to
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c8051f020单片机lcd驱动编程
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MCS
mcs-51单片机实用子程序库-mcs-51 microcontroller practical subroutine library
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本文件是ATMEGA16A的使用说明，内附该单片机内部各个资源的C代码和汇编代码...
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用AVR 音乐合成：
1.音乐数据存放于芯片的flash存贮器中2.PA口显示不同的音阶变化。
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用AVR 音乐合成：
1.音乐数据存放于芯片的flash存贮器中2.PA口显示不同的音阶变化。
3.音乐数据的低四位选择音调频率，高四位*5后，为音调持续时间。-Using AVR Music Synthesis: 1. The music data stored in flash memory chips in the mouth 2.PA show different changes in scale. 3. The music data to choose the four tones of low frequency, high 4* 5, in order to tone duration.
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５１单片机ａｓｍ串口液晶显示器通信程序，已通过测试
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