1˵

	1չʾȡ˿ڸߵ͵ƽ LEDD2D3˸
	2 IO ڵƽת


2ʹû

	/* Ӳ̶ӦĿӲƽ̨ */
	壺N32L40XM-STB V1.1

3ʹ˵
	
	/* ģ÷:ʱӣI/O */
	1SystemClock64MHz
	2GPIOPA8 ѡΪȡƽ˿ڣPB4PB5  LED(D2D3) ˸


	/* DemoĲԲ */
	1.سλУ
	2. PA8 ڵƽǵ͵ƽ LEDD2˸ PA8  3.3VLEDD3


4ע
	⵽ PA8 Ϊ͵ƽʱر JTAGPA8 Ϊߵƽʱ JTAG
	
	
	
	
1. Function description

	1. This example shows the high and low levels of the read port and controls the flashing of the LEDs (D2, D3)
	
	2. Control IO port level flip


2. Use environment

	/* Hardware environment: the development hardware platform corresponding to the project */
	Development board: N32L40XM-STB V1.1

3. Instructions for use

	/* Describe related module configuration methods; for example: clock, I/O, etc. */
	SystemClock: 64MHz
	GPIO: PA8 is selected as the read level port, PB4, PB5 control LED (D2, D3) to flash


	/* Describe the test steps and phenomena of the Demo */
	1. After compiling, download the program to reset and run;
	2. Check the level of the PA8 port, if it is a low level, the LED (D2) flashes, connect PA8 to 3.3V, and the LED (D3) is always on;


4. Matters needing attention
	When it is detected that the PA8 port is at a low level, close JTAG, and when the PA8 port is at a high level, open the JTAG.