small_rtos51移植到C8051F340上，II2C键盘7290

ucos在ARM芯片LPC2210上的移植代码，包括三个任务：中断方式读ZLG7290的按键；基于I2C接口的温度传感器；一个TFT液晶芯片的驱动显示，调试通过。-ucos in ARM transplantation on the LPC2210 chip code, consists of three tasks: reading ZLG7290 interruption of the keys I2C interface on the temperature sensor a TFT