1˵

	1չʾͨⲿжϣ LED ˸


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	/* Ӳ̶ӦĿӲƽ̨ */
	壺N32L40XM-STB V1.1

3ʹ˵
	
	/* ģ÷:ʱӣI/O */
	1SystemClock64MHz
	2GPIOPA8 ѡΪⲿжڣPB4  LED(D2) PB5  LED(D3) ˸


	/* DemoĲԲ */
	1.سλУ
	2.LEDD2 PA8  3.3V ٶϿLEDD3 ˸


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1. Function description
    1. This example shows the control of LED flashing through an external trigger interrupt.
	
2. Use environment
    /*Hardware environment: Project corresponding development hardware platform*/
	1.Developed based on the evaluation board N32L40XM-STB V1.1
	
3. Instructions for use
    /* Describe the related module configuration method; For example: clock, I/O, etc. */
	1. SystemClock: 64 MHZ
	2. GPIO: PA8 is selected as the external interrupt entrance. PB4 controls LED(D2) to be on, and PB5 controls LED(D3) to blink.
	
	/* Describes the test steps and symptoms of Demo */
	1. The downloaded program is reset and running after compilation
	2. LED (D2) is steady on. Connect PA8 to 3.3V and then disconnect. LED (D3) blinks.
		
4. Matters needing attention
   None.