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    1չʾ RT_Thread ʼĴͺͽ

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    /* Ӳ̶ӦĿӲƽ̨ */
    壺N32L43XM-STB N32L40XM-STB V1.1

3ʹ˵

    /* ģ÷:ʱӣI/O */
    SystemClock108MHz
    KEY	KEY1--PA4
	        KEY2--PA5,
	        KEY3--PA6

    ־: USART1:   TX--PA9  RX--PA10    ʣ115200

    /* DemoĲԲ */
    1.سλ
    2.Ӻôڴӡ
    3.̴̣߳key ̺߳ led ̣߳key ̼߳ⰴʼled ߳̽ʼ°KEY1KEY2KEY3ʼ鿴ӡ־

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1. Function description
    This routine shows the creation, sending, and receiving of a mail  in RT_Thread

2. Use environment
    Hardware environment: development hardware platform corresponding to the project 
    Development board:      N32L43XM-STB N32L40XM-STB V1.1

3. Instructions for use
    Describe the configuration method of related modules; for example: clock, I/O, etc. 
        1. SystemClock108MHz
    	2. KEY	KEY1--PA4
	        	KEY2--PA5,
	        	KEY3--PA6
        Log: TX--PA9 RX--PA10 Baud rate: 115200

    Describe the test steps and phenomena of Demo 
        1. After compiling, download the program to reset and run;
        2. Connect the serial port printing tool;
        3. This routine creates two threads, key thread and LED thread, key thread detects the key to send mail, led thread receives mail, press the key (KEY1KEY2KEY3) to send mail, and view the print log

4. Matters needing attention
    None.