USB PDIUSB12D C语言 中断服务处理程序

这个程序主要是为了简单方便的改变屏幕的分辨率。-This procedure is simple and convenient in order to change the screen resolution.

汇编指令的英文指令解释（对初学者来说，结合英文阅读有助于记忆指令，因为指令都是英文的缩写）-the code of ASM, when you study the ASM, you should read

在窗口上使用bmp文件而不用响应WM_PAINT消息，win32汇编源码，及编译好的exe文件，汇编爱好者不错的选择-In the window instead of using the bmp file in response to WM_PAINT message, win32 compilation of source code, and compiled exe files, the compilation of fans a good choice

超声波避障源码，可以参考，要原理图请联系我-Ultrasonic obstacle avoidance source code, can refer to the schematic, please contact me

电子琴程序,典型的汇编程序-flower procedures, the typical assembler

8031直接驱动LED的电路 以下是利用8031的I/O口直接驱动LED的电路原理图。电路通过8031的P0、P2口连接一片74LS373和一片27128构成外拓存储器，通过P1口直接连接LED，驱动显示器，通过P3.0、P3.1、P3.2、P3.3连接电平开关S1、S2、S3、S4作为逻辑输入控制。-8031 direct-drive LED circuit is the use of 8031 following the I/O port directly drive LED circuit schematic. Circuit through the 8031

在集成电路中，通常采用T型解码网络实现数字量往模拟的转换，再利用运算放大器完成模拟电流变为模拟电压的转换。所以，要把一个数字量变为模拟电压，实际上需要两个环节，先把数字量变为模拟电流，这是由D/A转换器完成的；再将模拟电流变成模拟电压，这是由运算放大器完成的。有时D/A转换器芯片只包含前一个环节，有些D/A转换器则包含两个环节，用前一种芯片时，需要外接运算放大器才能得到模拟电压。-In integrated circuits, the usual T-decode digital networks to analog conversion, and then complete the simulation of the use of op-amp current into the analog voltage conversion. Therefore, it is necessary to become a digital simulation of voltage, in fact, need two links, first into a digital simulation of currents, this is determined by D/A converters completed then simulate current into the analog voltage, this is determined by computing completed amplifier. Sometimes D/A converter chip contains only a part before, some D/A converter includes two aspects, before a chip, the need for external op-amp voltage can be simulated.

MCS51四字节除法运算程序，可计算出四字节的商和四字节的余数。-mcs51 division operation routine for tetra-byte ,may calculate both quotient of tetra-byte and remaining of tetra-byte

模型参考自适应程序。用于无速度传感器，做矢量控制-matlab

十进制打印AX寄存器中的值的函数 对64位数的高32位进行递归排序-metric Print AX register with the value of the function of the median 64-32 ranking for recursive