ʵ:
	MiniSTM32F103V3汾
	
ʵĿ:
	ѧϰGPIOΪʹ
	
ӲԴ:
	1,DS0(PA8),DS1(PD2)
	2,KEY0(PC5)/KEY1(PA15)/KEY_UP(PA0,Ҳ֮ΪWK_UP)
	
ʵ:
	ʵͨе3ťKEY_UPKEY0KEY1ưϵ2LEDDS0DS1
	KEY0DS0һٰһΣKEY1DS1ЧͬKEY0KEY_UPͬʱ
	DS0DS1һΣǵ״̬ͷתһΡ
	
ע:
	1,Ҫ1820PA0ñ,ܵ°"". 
	

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					2014-3-06
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