用8255,8253,8259实现的具有显示时分秒的电子时钟.

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串口程序源码，C语言，需要的同志可以下载哈-Serial program source code, C language, the need for comrades can download Kazakhstan

对小学生算术加法程序的改进 具体要求如下: 1)、输入题数 2)、随机出题 3)、立即判对错，可随时退出 4)、最后给出总分 5、界面修饰。 -Arithmetic addition of primary school students and improved procedures for the specific requirements are as follows: 1), enter the title number 2), random questions 3), right or wrong immediately contractor may at any time to withdraw from 4), Finally, Total 5, interfacial modification.

用汇编语言实现 单片机与PC通信实例 -asm pic &pc

特点： 1． 双轴倾角传感器 2． 测量范围0.5g(±30 度)或者1g(±90 度) 3． 单极5V 供电，比例电压输出 4． 高分辨率双轴倾角传感器 5． 数字SPI 或模拟输出 6． 内置温度传感器 7． 长期稳定性非常好 8．高分辨率，低噪声，工作温度范围宽 优势： 长期稳定性好，温度特性优良 抗冲击能力强 应用： 双轴平台调平 倾斜测量 垂直方向的各种角度的测量-Features: 1. Biaxial inclination sensor 2. Measuring range of 0.5g (± 30 degrees) or 1g (± 90 degrees) 3. Unipolar 5V power supply, the ratio of voltage output 4. High-resolution dual-axis inclination sensor 5. SPI digital or analog output 6. Built-in temperature sensor 7. 8 very good long-term stability. High-resolution, low noise, wide operating temperature range of advantages: long-term stability, excellent temperature characteristics of the application of anti-shock capability: dual-axis tilt platform leveling vertical measurement range of the angle measurement

在我们生活中，我们很容易通过这个叫张三，那个叫李四，另外一个是王五；那是因为每个人有不同的名子，我们就很快认出，同样，对于要通过一个按键来识别每种不同的功能，我们给每个不同的功能模块用不同的ID号标识，这样，每按下一次按键，ID的值是不相同的，所以单片机就很容易识别不同功能的身份了。-In our lives, we can easily Zhang through this three or four叫李that, another five-Wang it is because everyone has a different name, we quickly identified, and similarly, for a button to pass to identify the different functions of each, we have different functions to each module" s ID number with different logo, so, for every one button press, ID is not the same value, so it is easy to identify the different single-chip function hats.

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非常有用的四个汇编语言实验报告！下载回来就可以交给老师了！！！！！绝对的好东西-very useful compilation of the four experimental report language! It can be downloaded back to the teachers! ! ! ! ! Definitely a good thing! !

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本人做矩阵按键实验时所用的编码程序，拿出来大家参考的下吧！做毕业设计继续站内资源啊-I do key experiments matrix encoding process used to produce the next reference to it! Graduates to continue to do the design station ah resources