AT91M40800源码，包含串口，液晶屏，按键等

at91sam7s64的IO控制，适合于初学者-AT91SAM7S64 the IO control, suitable for beginners

优化级别必需为s,其他优化级别也不会导致编译时出错，但会导致运行时出错。原因涉及局部变量分配堆栈处理方式不同，也就是OS_CPU_A.c那个文件中的移植部分。还有就是其他优化涉及的中断自动保存寄存器的数量有所出入。-Necessary to optimize the level of s, other optimization levels will not lead to compile-time error, but it will result in run-time error. Reasons relating to the allocation of local variables, stack processing in different ways, that is, OS_CPU_A.c that the transplanted parts of the file. There are other optimization related to the interruption of the number of registers saved automatically have access to.

4*4键盘控制程序 //分三个部分，数字键部分，小数点，方向键部分，功能键(ok)部分。可以在不同的页面调// //用相应的功能实现菜单操作。 方向键部分///////////////////////////////////// //无返回值，无输入参数，用到全局变量page_number,xposition,yposition,scroll_value// -4* 4 keyboard control program// is divided into three parts, part number keys, decimal point, the arrow keys of the function keys (ok) part. Can be adjusted in different page//// using the corresponding menu realize the functions of the operation. Part of the arrow keys /////////////////////////////////////// no return value, no input parameters, use global variables page_number, xposition, yposition, scroll_value//

2440mmc-and-camera-linux-driver -2440mmc-and-camera- linux-driver 2440m mc-and-camera- linux-driver2440mmc-and-ca mera- linux-driver

arm相关的学习资料,关于bios的源代码分析-arm relevant learning materials, bios on the source code analysis, etc.

可以加载到嵌入式系统终端的键盘驱动程序，实现了键盘初始化，键盘数据读写及复位等功能。- The keyboard driver program can be loaded inbed-system and carry out the function of the initialization keyboard,r/w of keyboard data, reset and so on.

This test code use PWM to control LED flashing, however, users can use PWM to do other things with the PWM initialization code-AT91SAM7S test code for PWM development under IAR platform

这个项目的目的是使一个不平衡的两轮赛车平衡。它是令人兴奋和具有挑战性的。我的目标是使不平衡的车听我的话，去的地方我希望它去的。如果我想要站在原地，就必须站在不转了头发，我希望它向左转，就不会右转一点。但我怎么能实现呢？答案是这个项目。它采用PID算法，它有四个输入和两个OUPUTS。四个输入被左马达速度，右马达速度，倾角角度rate.these由两个编码器和accelerater和陀螺仪得到的。

轮流闪烁arm板的led灯-rotating scintillation arm plate led lights

AT91RM9200EK和DK测试代码，用IAR和KEIL分别实现-Test code AT91RM9200EK and DK, respectively, using IAR and KEIL realize