dxflib库

实现HDLC链路层的校验模块程序，在ads和mipchipc30上都调试成功。(HDLC link-layer implementation of the calibration module procedures, mipchipc30 in ads and on the success of all debugging.)

说明：  C#编写的usb控制程序demo，值得usb开发人员借鉴(Written in C# usb control procedures demo, worth usb developer reference)

针对常规测速方法，M法与T法的研究与探讨，分析了两种方法的误差来源，指出了问题本质，并提供了仿真图例。(For the conventional measurement methods, M Law and T The Study and discussion of the two methods of error sources, pointed out the nature of the problem and provide a simulation of legend.)

STM32+LWIP的串口转网口程序源码(STM32+ LWIP switch network serial port source code)

运筹学中的问题求解，使用共轭梯度法来求最优解(Solving problems in operations research, using conjugate gradient method to find the optimal solution)

DMA9061A基于LPC2300的源代码(dma9061a with lpc2300 s source code)

STM32F407数据手册，英文的，STM32F4xx系列开发必备(STM32F407 data sheet)

introduce 3d with dx9.0 绝好的3d书籍加源码(introduce 3d with dx9.0 excellent books on Canadian source 3d)

nmls to solve stochastic problems

二次b样条和三次b样条曲线画法，完全按照定义来做的，支持多个点的绘制。比贝塞尔曲线好画，贝塞尔曲线有三个点和四个点的画法，点再多就需要拟合了(B-spline quadratic and cubic b-spline curve drawing, done in full accordance with the definition of support to draw more points. Good Bibeisaier curve drawing, Bezier curve with three points and four points of the painting, we need to fit the more points)