394 lines
12 KiB
C
394 lines
12 KiB
C
/*
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* Copyright 2019 NXP
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include "sai.h"
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#include "fsl_wm8960.h"
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#include "pin_mux.h"
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#include "clock_config.h"
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#include "peripherals.h"
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#include "board.h"
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#include "fsl_codec_common.h"
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#include "fsl_codec_adapter.h"
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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/* SAI instance and clock */
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#define DEMO_CODEC_WM8960
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#define DEMO_SAI_IRQ SAI1_IRQn
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#define SAI_UserIRQHandler SAI1_IRQHandler
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/* IRQ */
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#define DEMO_SAI_TX_IRQ SAI1_IRQn
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#define DEMO_SAI_RX_IRQ SAI1_IRQn
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/* Select Audio/Video PLL (786.48 MHz) as sai1 clock source */
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#define DEMO_SAI1_CLOCK_SOURCE_SELECT (2U)
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/* Clock pre divider for sai1 clock source */
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#define DEMO_SAI1_CLOCK_SOURCE_PRE_DIVIDER (3U)
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/* Clock divider for sai1 clock source */
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#define DEMO_SAI1_CLOCK_SOURCE_DIVIDER (15U)
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/* Get frequency of sai1 clock */
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#define DEMO_SAI_CLK_FREQ \
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(CLOCK_GetFreq(kCLOCK_AudioPllClk) / (DEMO_SAI1_CLOCK_SOURCE_DIVIDER + 1U) / \
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(DEMO_SAI1_CLOCK_SOURCE_PRE_DIVIDER + 1U))
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/* I2C instance and clock */
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#define DEMO_I2C LPI2C1
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/* Select USB1 PLL (480 MHz) as master lpi2c clock source */
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#define DEMO_LPI2C_CLOCK_SOURCE_SELECT (0U)
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/* Clock divider for master lpi2c clock source */
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#define DEMO_LPI2C_CLOCK_SOURCE_DIVIDER (5U)
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/* Get frequency of lpi2c clock */
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#define DEMO_I2C_CLK_FREQ ((CLOCK_GetFreq(kCLOCK_Usb1PllClk) / 8) / (DEMO_LPI2C_CLOCK_SOURCE_DIVIDER + 1U))
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#ifndef DEMO_CODEC_VOLUME
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#define DEMO_CODEC_VOLUME 100
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#endif
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/*******************************************************************************
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* Prototypes
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******************************************************************************/
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#if defined DEMO_SDCARD
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#include "ff.h"
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#include "diskio.h"
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#include "fsl_sd.h"
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#include "sdmmc_config.h"
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/*!
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* @brief wait card insert function.
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*/
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static status_t sdcardWaitCardInsert(void);
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static int SD_FatFsInit(void);
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#endif
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/*******************************************************************************
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* Variables
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******************************************************************************/
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wm8960_config_t wm8960Config = {
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.i2cConfig = {.codecI2CInstance = BOARD_CODEC_I2C_INSTANCE, .codecI2CSourceClock = BOARD_CODEC_I2C_CLOCK_FREQ},
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.route = kWM8960_RoutePlaybackandRecord,
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.leftInputSource = kWM8960_InputDifferentialMicInput3,
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.rightInputSource = kWM8960_InputDifferentialMicInput2,
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.playSource = kWM8960_PlaySourceDAC,
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.slaveAddress = WM8960_I2C_ADDR,
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.bus = kWM8960_BusI2S,
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.format = {.mclk_HZ = 6144000U, .sampleRate = kWM8960_AudioSampleRate16KHz, .bitWidth = kWM8960_AudioBitWidth16bit},
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.master_slave = false,
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};
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codec_config_t boardCodecConfig = {.codecDevType = kCODEC_WM8960, .codecDevConfig = &wm8960Config};
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/*
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* AUDIO PLL setting: Frequency = Fref * (DIV_SELECT + NUM / DENOM)
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* = 24 * (32 + 768/1000)
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* = 786.432 MHz
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*/
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const clock_audio_pll_config_t audioPllConfig = {
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.loopDivider = 32, /* PLL loop divider. Valid range for DIV_SELECT divider value: 27~54. */
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.postDivider = 1, /* Divider after the PLL, should only be 1, 2, 4, 8, 16. */
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.numerator = 768, /* 30 bit numerator of fractional loop divider. */
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.denominator = 1000, /* 30 bit denominator of fractional loop divider */
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};
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AT_NONCACHEABLE_SECTION_ALIGN(uint8_t audioBuff[BUFFER_SIZE * BUFFER_NUM], 4);
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extern codec_config_t boardCodecConfig;
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volatile bool istxFinished = false;
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volatile bool isrxFinished = false;
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volatile uint32_t beginCount = 0;
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volatile uint32_t sendCount = 0;
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volatile uint32_t receiveCount = 0;
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volatile bool sdcard = false;
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volatile uint32_t fullBlock = 0;
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volatile uint32_t emptyBlock = BUFFER_NUM;
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#if defined DEMO_SDCARD
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/* static values for fatfs */
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AT_NONCACHEABLE_SECTION(FATFS g_fileSystem); /* File system object */
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AT_NONCACHEABLE_SECTION(FIL g_fileObject); /* File object */
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AT_NONCACHEABLE_SECTION(BYTE work[FF_MAX_SS]);
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extern sd_card_t g_sd; /* sd card descriptor */
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#endif
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codec_handle_t codecHandle;
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/*******************************************************************************
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* Code
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******************************************************************************/
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void BOARD_EnableSaiMclkOutput(bool enable)
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{
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if (enable)
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{
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IOMUXC_GPR->GPR1 |= IOMUXC_GPR_GPR1_SAI1_MCLK_DIR_MASK;
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}
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else
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{
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IOMUXC_GPR->GPR1 &= (~IOMUXC_GPR_GPR1_SAI1_MCLK_DIR_MASK);
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}
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}
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void txCallback(I2S_Type *base, sai_edma_handle_t *handle, status_t status, void *userData)
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{
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sendCount++;
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emptyBlock++;
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if (sendCount == beginCount)
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{
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istxFinished = true;
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SAI_TransferTerminateSendEDMA(base, handle);
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sendCount = 0;
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}
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}
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void rxCallback(I2S_Type *base, sai_edma_handle_t *handle, status_t status, void *userData)
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{
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receiveCount++;
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fullBlock++;
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if (receiveCount == beginCount)
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{
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isrxFinished = true;
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SAI_TransferTerminateReceiveEDMA(base, handle);
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receiveCount = 0;
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}
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}
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#if defined DEMO_SDCARD
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static status_t sdcardWaitCardInsert(void)
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{
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BOARD_SD_Config(&g_sd, NULL, BOARD_SDMMC_SD_HOST_IRQ_PRIORITY, NULL);
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/* SD host init function */
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if (SD_HostInit(&g_sd) != kStatus_Success)
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{
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PRINTF("\r\nSD host init fail\r\n");
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return kStatus_Fail;
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}
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/* power off card */
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SD_SetCardPower(&g_sd, false);
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/* wait card insert */
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if (SD_PollingCardInsert(&g_sd, kSD_Inserted) == kStatus_Success)
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{
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PRINTF("\r\nCard inserted.\r\n");
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/* power on the card */
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SD_SetCardPower(&g_sd, true);
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}
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else
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{
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PRINTF("\r\nCard detect fail.\r\n");
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return kStatus_Fail;
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}
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return kStatus_Success;
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}
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int SD_FatFsInit()
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{
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/* If there is SDCard, Initialize SDcard and Fatfs */
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FRESULT error;
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static const TCHAR driverNumberBuffer[3U] = {SDDISK + '0', ':', '/'};
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static const TCHAR recordpathBuffer[] = DEMO_RECORD_PATH;
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PRINTF("\r\nPlease insert a card into board.\r\n");
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if (sdcardWaitCardInsert() != kStatus_Success)
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{
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return -1;
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}
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error = f_mount(&g_fileSystem, driverNumberBuffer, 1U);
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if (error == FR_OK)
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{
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PRINTF("Mount volume Successfully.\r\n");
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}
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else if (error == FR_NO_FILESYSTEM)
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{
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#if FF_USE_MKFS
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PRINTF("\r\nMake file system......The time may be long if the card capacity is big.\r\n");
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if (f_mkfs(driverNumberBuffer, 0, work, sizeof work) != FR_OK)
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{
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PRINTF("Make file system failed.\r\n");
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return -1;
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}
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#else
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PRINTF("No file system detected, Please check.\r\n");
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return -1;
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#endif /* FF_USE_MKFS */
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}
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else
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{
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PRINTF("Mount volume failed.\r\n");
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return -1;
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}
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#if (FF_FS_RPATH >= 2U)
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error = f_chdrive((char const *)&driverNumberBuffer[0U]);
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if (error)
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{
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PRINTF("Change drive failed.\r\n");
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return -1;
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}
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#endif
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PRINTF("\r\nCreate directory......\r\n");
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error = f_mkdir((char const *)&recordpathBuffer[0U]);
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if (error)
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{
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if (error == FR_EXIST)
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{
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PRINTF("Directory exists.\r\n");
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}
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else
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{
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PRINTF("Make directory failed.\r\n");
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return -1;
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}
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}
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return 0;
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}
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#endif /* DEMO_SDCARD */
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/*!
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* @brief Main function
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*/
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int main(void)
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{
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char input = '1';
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uint8_t userItem = 1U;
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BOARD_ConfigMPU();
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BOARD_InitBootPins();
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BOARD_InitBootClocks();
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CLOCK_InitAudioPll(&audioPllConfig);
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BOARD_InitBootPeripherals();
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BOARD_InitDebugConsole();
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/*Clock setting for LPI2C*/
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CLOCK_SetMux(kCLOCK_Lpi2cMux, DEMO_LPI2C_CLOCK_SOURCE_SELECT);
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CLOCK_SetDiv(kCLOCK_Lpi2cDiv, DEMO_LPI2C_CLOCK_SOURCE_DIVIDER);
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/*Clock setting for SAI1*/
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CLOCK_SetMux(kCLOCK_Sai1Mux, DEMO_SAI1_CLOCK_SOURCE_SELECT);
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CLOCK_SetDiv(kCLOCK_Sai1PreDiv, DEMO_SAI1_CLOCK_SOURCE_PRE_DIVIDER);
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CLOCK_SetDiv(kCLOCK_Sai1Div, DEMO_SAI1_CLOCK_SOURCE_DIVIDER);
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/*Enable MCLK clock*/
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BOARD_EnableSaiMclkOutput(true);
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PRINTF("SAI Demo started!\n\r");
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/* Use default setting to init codec */
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if (CODEC_Init(&codecHandle, &boardCodecConfig) != kStatus_Success)
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{
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assert(false);
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}
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if (CODEC_SetVolume(&codecHandle, kCODEC_PlayChannelHeadphoneLeft | kCODEC_PlayChannelHeadphoneRight,
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DEMO_CODEC_VOLUME) != kStatus_Success)
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{
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assert(false);
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}
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/* Enable interrupt to handle FIFO error */
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SAI_TxEnableInterrupts(DEMO_SAI_PERIPHERAL, kSAI_FIFOErrorInterruptEnable);
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SAI_RxEnableInterrupts(DEMO_SAI_PERIPHERAL, kSAI_FIFOErrorInterruptEnable);
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EnableIRQ(DEMO_SAI_TX_IRQ);
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EnableIRQ(DEMO_SAI_RX_IRQ);
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#if defined DEMO_SDCARD
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/* Init SDcard and FatFs */
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if (SD_FatFsInit() != 0)
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{
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PRINTF("SDCARD init failed !\r\n");
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}
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#endif /* DEMO_SDCARD */
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PRINTF("\n\rPlease choose the option :\r\n");
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while (1)
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{
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PRINTF("\r%d. Record and playback at same time\r\n", userItem++);
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PRINTF("\r%d. Playback sine wave\r\n", userItem++);
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#if defined DEMO_SDCARD
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PRINTF("\r%d. Record to SDcard, after record playback it\r\n", userItem++);
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#endif /* DEMO_SDCARD */
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#if defined DIG_MIC
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PRINTF("\r%d. Record using digital mic and playback at the same time\r\n", userItem++);
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#endif
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PRINTF("\r%d. Quit\r\n", userItem);
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input = GETCHAR();
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PUTCHAR(input);
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PRINTF("\r\n");
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if (input == (userItem + 48U))
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{
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break;
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}
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switch (input)
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{
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case '1':
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#if defined DIG_MIC
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/* Set the audio input source to AUX */
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DA7212_ChangeInput((da7212_handle_t *)((uint32_t)(codecHandle.codecDevHandle)), kDA7212_Input_AUX);
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#endif
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RecordPlayback(DEMO_SAI_PERIPHERAL, 30);
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break;
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case '2':
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PlaybackSine(DEMO_SAI_PERIPHERAL, 250, 5);
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break;
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#if defined DEMO_SDCARD
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case '3':
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RecordSDCard(DEMO_SAI_PERIPHERAL, 5);
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break;
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#endif
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#if defined DIG_MIC
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case userItem - 1U + 48U:
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/* Set the audio input source to DMIC */
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DA7212_ChangeInput((da7212_handle_t *)((uint32_t)(codecHandle.codecDevHandle)), kDA7212_Input_MIC1_Dig);
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RecordPlayback(DEMO_SAI_PERIPHERAL, 30);
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break;
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#endif
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default:
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PRINTF("\rInvallid Input Parameter, please re-enter\r\n");
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break;
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}
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userItem = 1U;
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}
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if (CODEC_Deinit(&codecHandle) != kStatus_Success)
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{
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assert(false);
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}
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PRINTF("\n\r SAI demo finished!\n\r ");
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while (1)
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{
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}
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}
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void SAI_UserTxIRQHandler(void)
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{
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/* Clear the FEF flag */
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SAI_TxClearStatusFlags(DEMO_SAI_PERIPHERAL, kSAI_FIFOErrorFlag);
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SAI_TxSoftwareReset(DEMO_SAI_PERIPHERAL, kSAI_ResetTypeFIFO);
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SDK_ISR_EXIT_BARRIER;
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}
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void SAI_UserRxIRQHandler(void)
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{
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SAI_RxClearStatusFlags(DEMO_SAI_PERIPHERAL, kSAI_FIFOErrorFlag);
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SAI_RxSoftwareReset(DEMO_SAI_PERIPHERAL, kSAI_ResetTypeFIFO);
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SDK_ISR_EXIT_BARRIER;
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}
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void SAI_UserIRQHandler(void)
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{
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if (SAI_TxGetStatusFlag(DEMO_SAI_PERIPHERAL) & kSAI_FIFOErrorFlag)
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{
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SAI_UserTxIRQHandler();
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}
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if (SAI_RxGetStatusFlag(DEMO_SAI_PERIPHERAL) & kSAI_FIFOErrorFlag)
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{
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SAI_UserRxIRQHandler();
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}
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SDK_ISR_EXIT_BARRIER;
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}
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