M031播放WAV音频示例

只看该作者 · 2023-6-20 14:26

EC_M031_Play_Wav_file_from_SPI_Flash_V1.00.zip (2.11 MB)

int32_t main(void)

{

uint32_t MidDid;

TCHAR sd_path[] = { '0', ':', 0 }; /* SD drive started from 0 */

/* Unlock protected registers */

SYS_UnlockReg();

/* Init System, IP clock and multi-function I/O. */

SYS_Init();

/* Init UART to 115200-8n1 for print message */

UART_Open(UART0, 115200);

QSpiInit();

MidDid = QSpiReadMidDid();

printf("\nMID and DID = 0x%x\n\r", MidDid);

printf("\nstart to play test.wav file");

f_chdrive(sd_path); /* set default path */

/* Init I2C1 to access NAU8822 */

I2C1_Init();

/* Reset NAU88L25 codec */

NAU88L25_Reset();

/* Set PE.13 low to enable phone jack on NuMaker board. */

SYS->GPE_MFPH &= ~(SYS_GPE_MFPH_PE13MFP_Msk);

GPIO_SetMode(PE, BIT13, GPIO_MODE_OUTPUT);

PE13 = 0;

/* Initialize NAU88L25 codec */

CLK_SysTickDelay(20000);

NAU88L25_Setup();

/* Configure PDMA and use Scatter-Gather mode */

PDMA_Init();

WAVPlayer();

while(1);

}

只看该作者 · 2023-6-20 14:27

首先，初始化main.c中的M031，初始化I2C, UART, SPI-I2S, QSPI和NAU88L25。然后，调用play波函数。