1˵

	/* ̹ */
        òʾʹEXITⲿжϼTIMʱж


2ʹû

    KEIL MDK-ARM V5.34.0.0
    Ӳ 
        N32G05xϵУ
            N32G05xRBQ7_STB V1.0
        N32G05xϵУ
            N32G05xRBL7_STB V1.0

3ʹ˵
	
	/* ģ÷:ʱӣI/O */
        SystemClock64MHz
        USARTTX - PA9115200
	    EXITPA4Ϊģʽⲿж - EXIT_LINE4ⲿж
	    TIMԤƵϵ - SystemClock/1200-1 - 1200-1ʱж

	/* DemoĲԲ */
        1.سλУ
        2.鿴ڴӡϢʱжϢÿ1SӡһΣ°KEY1(PA4)ӡֹͣٴΰӡ


4ע


1. Function description

	/* Briefly describe the project function */
         This routine configures and demonstrates the use of EXIT external interrupt and TIM timer interrupt


2. Use environment

	Software development environment: KEIL MDK-ARM V5.34.0.0
    Hardware development environment:
         N32G05x series:
            Developed based on the evaluation board N32G05xRBQ7_STB V1.0
         N32G05x series:
            Developed based on the evaluation board N32G05xRBL7_STB V1.0

3. Instructions for use

	/* Describe related module configuration methods; for example: clock, I/O, etc. */
         	SystemClock: 64MHz
         	USART: TX - PA9, baud rate 115200
	EXIT: PA4 is floating input mode, external interrupt line - EXIT_LINE4, open external interrupt
	TIM: prescale factor - (SystemClock/1200-1), period - (1200-1), enable timer interrupt

	/* Describe the test steps and phenomena of the Demo */
         1. After compiling, download the program to reset and run;
         2. Check the serial port printing information, the timer interrupt information is printed every 1S, press the button KEY1(PA4) to stop printing, press it again to continue printing, indicating that the program is running normally;


4. Matters needing attention

