1˵
    1ͨEXTIӡ


2ʹû

    /* ǰʹõƼ汾 */
    IDEߣKEIL MDK-ARM 5.21.1.0
      
    /* Ӳ̶ӦĿӲƽ̨ */
    壺N32G031C8L7-STB V1.0     



3ʹ˵

    ϵͳã
        1RTCʱԴLSI
                2жߣEXTI_LINE7
        3ã
                    - ΪUSART1TXPA9  RXPA10:
                    - λ8
                    - ֹͣλ1
                    - żУ飺
                    - ʣ 115200 


    ʹ÷
        KEIL±¼壬PC13ӵPA7ڣϵ󣬴ÿ1SӡһζӦʱ


4ע
    



1. Function description
    1. Trigger the calendar printout through the EXTI line.


2. Use environment

    /* Software development environment: the name and version number of the software tool used in the current project */
    IDE tool: KEIL MDK-ARM 5.21.1.0
      
    /* Hardware environment: the development hardware platform corresponding to the project */
    Development board: N32G031C8L7-STB V1.0



3. Instructions for use

    System Configuration;
        1. RTC clock source: LSI
                2. Interrupt line: EXTI_LINE7
        3. Serial port configuration:
                    - Serial port is USART1 (TX: PA9 RX: PA10):
                    - Data bits: 8
                    - Stop bit: 1
                    - Parity: none
                    - Baud rate: 115200


    Instructions:
        After compiling under KEIL and burning to the evaluation board, PC13 is connected to the PA7 port. After power-on, the serial port will print the corresponding calendar time every 1S.


4. Matters needing attention
    none