CRC校验C程序，可以计算CRC结果，方法简单，运行时间快-CRC checksum C program, you can calculate the CRC result, the method is simple, fast run-time

GPS测试程序,内含详细GPS位置计算方法，及将算得的位置信息送给12864的液晶模块显示，对GPS初学者很有参考价值。-GPS test program containing detailed GPS position calculation method, and the calculated position information to the 12,864 LCD display module for GPS beginners great reference value.

参考AVR446的方法在ti的M3上的实验，此方法是一种实时梯形规划的方法，计算量小。-The experimental method of AVR446 reference in the Ti M3, this method is a method for real-time ladder programming, small amount of calculation.