  
 		TM00ʱ
		demoּöʱںԤƵ
 		˽ⶨʱõԭ
		

  ڼ㹫ʽ	
		ûʱ1msҲ˵öʱÿms
		CK_TM00_PR12MHz
 		ôʱΪ12M*1ms = 12000
 		û"clock prescaler"=100  "MainCounter"=120
			
