1˵
     1I2S ģʽͨжϽ
2ʹû
     KEIL MDK-ARM 5.30.0.0
     ӲN32G031CL-STB V1.0
3ʹ˵
     ϵͳã
         1SystemClock48MHz
         2GPIOģʽ DEMO 壩I2S1: WS--PA4CK--PA5SD--PA7
                  ģʽ DEMO 壩I2S1: WS--PA4CK--PA5SD--PA7
         3жϣI2S1 жں SPI1_IRQHandler
     ʹ÷
         1سλУ
         2ģʽ DEMO ģʽȰסģʽ DEMO 帴λȻģʽ DEMO ȫܣ
              ɿģʽ DEMO 帴λ鿴 TransferStatus1  TransferStatus2 ״̬Ϊ PASSED
4ע
     Ҫ demo ϣһ¼ģʽһ¼ģʽӵ VCC  GND

1. Function description
    1. I2S slave mode receives data via interrupt
2. Use environment
    Software development environment: KEIL MDK-ARM 5.30.0.0
    Hardware Environment: Developed based on N32G031CL-STB V1.0
3. Instructions for use
    System Configuration;
        1. SystemClock48MHz
        2. GPIO(Master mode DEMO board) I2S1: WS--PA4, CK--PA5, SD--PA7
                 (Slave mode DEMO board)  I2S1: WS--PA4, CK--PA5, SD--PA7
        3. Interrupt: I2S1 interrupt entry function SPI1_IRQHandler
    Instructions:
        1. After compiling, download the program to reset and run;
        2. The slave mode DEMO board enters the debug mode, first press and hold the master mode DEMO board reset button, then the slave mode DEMO board runs at full speed,
           then release the reset button of the master mode DEMO board, and check that the status of TransferStatus1 and TransferStatus2 is PASSED
4. Matters needing attention
    Two demo boards are required, one board to burn the master mode program, one board to burn the slave mode program, connect the VCC and GND of the two boards