F2407 有四个通用定时器，本程序主要对通用定时器1进行操作，1ms产生1 次中断，在中断中让2407＋CPLD开发板上的LED1发光二极管不断闪烁。 -F2407 has four general purpose timers, the program mainly to operate a general-purpose timer, 1ms interrupt generation 1, the interrupt to 2407+ CPLD development board fla