CCS中使用DSP定时器的计时程序，可以精确计算某一段程序的执行时间

#include 

TIMER_Handle hTimer0;
TIMER_Config TimerConfig =
{
	TIMER_CTL_RMK
	(
		TIMER_CTL_SPND_EMUSTOP,
		TIMER_CTL_INVINP_NO,
		TIMER_CTL_CLKSRC_CPUOVR8,	//定时器的频率是CPU频率的1/8
		TIMER_CTL_CP_PULSE,
		TIMER_CTL_HLD_NO,			//时钟有效
		TIMER_CTL_GO_NO,			//时钟没有开启
		TIMER_CTL_PWID_TWO,
		TIMER_CTL_DATOUT_1,
		TIMER_CTL_INVOUT_YES,
		TIMER_CTL_FUNC_TOUT
	),
	0xffffffff,			//定时器计数值，一旦达到该值就会产生中断，该计数值可以最大计数57秒不中断
	0x0								//计数器初值
};

void Timer0_Cnt()
{
	float timecnt,timeval;

	hTimer0 = TIMER_open(TIMER_DEV0,TIMER_OPEN_RESET);		//打开定时器0，返回操作句柄
	TIMER_config(hTimer0,&TimerConfig);						//使用配置结构体配置定时器0

	TIMER_start(hTimer0);									//开始计数

	/***********此处为要计时的程序段***********/

	timecnt = TIMER_getCount(hTimer0);						//获取定时器的计数值
	TIMER_pause(hTimer0);									//停止计数

	timeval = (float)(timecnt*8/600000000);					//将计数值转化为时间值
	printf("The time spended is %fs",timeval);				//打印程序运行时间
}