在IAR4.3平台下，将at91sam7x256的ARM7板子中的四个按键，通过usb，模拟成电脑鼠标-in IAR4.3 platform, will at91sam7x256 ARM7 board of four buttons, USB, analog into computer mouse

基于ARM CORTEX M3的USB鼠标程序，包含库函数和源文件，可以通过外置按键模拟USB鼠标，在STM32F103上调试通过。-Based on ARM CORTEX M3 s USB mouse program, including library functions and source files, keys can be simulated by an external USB mouse, the STM32F103 debugging through.