这是我在学习TI公司的32位DSP28027时编写的练习LED和按键的程序，按键未按下时4个等中的两两交替亮，按下时是流水灯，通过这个程序练习GPIO，输人和输出，很好理解，希望对大家有帮助-This is my learning TI s 32-bit DSP28027 written exercises when the LED and key procedures, key is not pressed in when four other pairwise alternating light, water lights when pressed, through this program exercises GPIO, lose and output, well understood, we hope to help