/**************************************************************************//**
* [url=home.php?mod=space&uid=288409]@file[/url] main.c
* [url=home.php?mod=space&uid=895143]@version[/url] V2.00
* [url=home.php?mod=space&uid=247401]@brief[/url] This is an I2S demo using NAU8822/88L25 audio codec, and used to play
* back the input from line-in or MIC interface..
*
* [url=home.php?mod=space&uid=17282]@CopyRight[/url] (C) 2016 Nuvoton Technology Corp. All rights reserved.
*
******************************************************************************/
#include <stdio.h>
#include <string.h>
#include "NuMicro.h"
#include "config.h"
#define NAU8822 0
uint32_t PcmBuff[BUFF_LEN] = {0};
uint32_t volatile u32BuffPos = 0;
#if NAU8822
/*---------------------------------------------------------------------------------------------------------*/
/* Write 9-bit data to 7-bit address register of NAU8822 with I2C2 */
/*---------------------------------------------------------------------------------------------------------*/
void I2C_WriteNAU8822(uint8_t u8addr, uint16_t u16data)
{
I2C_START(I2C2);
I2C_WAIT_READY(I2C2);
I2C_SET_DATA(I2C2, 0x1A<<1);
I2C_SET_CONTROL_REG(I2C2, I2C_CTL_SI);
I2C_WAIT_READY(I2C2);
I2C_SET_DATA(I2C2, (uint8_t)((u8addr << 1) | (u16data >> 8)));
I2C_SET_CONTROL_REG(I2C2, I2C_CTL_SI);
I2C_WAIT_READY(I2C2);
I2C_SET_DATA(I2C2, (uint8_t)(u16data & 0x00FF));
I2C_SET_CONTROL_REG(I2C2, I2C_CTL_SI);
I2C_WAIT_READY(I2C2);
I2C_STOP(I2C2);
}
/*---------------------------------------------------------------------------------------------------------*/
/* NAU8822 Settings with I2C interface */
/*---------------------------------------------------------------------------------------------------------*/
void NAU8822_Setup()
{
printf("\nConfigure NAU8822 ...");
I2C_WriteNAU8822(0, 0x000); /* Reset all registers */
CLK_SysTickDelay(10000);
I2C_WriteNAU8822(1, 0x02F);
I2C_WriteNAU8822(2, 0x1B3); /* Enable L/R Headphone, ADC Mix/Boost, ADC */
I2C_WriteNAU8822(3, 0x07F); /* Enable L/R main mixer, DAC */
I2C_WriteNAU8822(4, 0x010); /* 16-bit word length, I2S format, Stereo */
I2C_WriteNAU8822(5, 0x000); /* Companding control and loop back mode (all disable) */
I2C_WriteNAU8822(6, 0x1AD); /* Divide by 6, 16K */
I2C_WriteNAU8822(7, 0x006); /* 16K for internal filter coefficients */
I2C_WriteNAU8822(10, 0x008); /* DAC soft mute is disabled, DAC oversampling rate is 128x */
I2C_WriteNAU8822(14, 0x108); /* ADC HP filter is disabled, ADC oversampling rate is 128x */
I2C_WriteNAU8822(15, 0x1EF); /* ADC left digital volume control */
I2C_WriteNAU8822(16, 0x1EF); /* ADC right digital volume control */
I2C_WriteNAU8822(44, 0x000); /* LLIN/RLIN is not connected to PGA */
I2C_WriteNAU8822(47, 0x050); /* LLIN connected, and its Gain value */
I2C_WriteNAU8822(48, 0x050); /* RLIN connected, and its Gain value */
I2C_WriteNAU8822(50, 0x001); /* Left DAC connected to LMIX */
I2C_WriteNAU8822(51, 0x001); /* Right DAC connected to RMIX */
printf("[OK]\n");
}
#else // NAU88L25
uint8_t I2cWrite_MultiByteforNAU88L25(uint8_t chipadd,uint16_t subaddr, const uint8_t *p,uint32_t len)
{
/* Send START */
I2C_START(I2C2);
I2C_WAIT_READY(I2C2);
/* Send device address */
I2C_SET_DATA(I2C2, chipadd);
I2C_SET_CONTROL_REG(I2C2, I2C_CTL_SI);
I2C_WAIT_READY(I2C2);
/* Send register number and MSB of data */
I2C_SET_DATA(I2C2, (uint8_t)(subaddr>>8));
I2C_SET_CONTROL_REG(I2C2, I2C_CTL_SI);
I2C_WAIT_READY(I2C2);
/* Send register number and MSB of data */
I2C_SET_DATA(I2C2, (uint8_t)(subaddr));
I2C_SET_CONTROL_REG(I2C2, I2C_CTL_SI);
I2C_WAIT_READY(I2C2);
/* Send data */
I2C_SET_DATA(I2C2, p[0]);
I2C_SET_CONTROL_REG(I2C2, I2C_CTL_SI);
I2C_WAIT_READY(I2C2);
/* Send data */
I2C_SET_DATA(I2C2, p[1]);
I2C_SET_CONTROL_REG(I2C2, I2C_CTL_SI);
I2C_WAIT_READY(I2C2);
/* Send STOP */
I2C_STOP(I2C2);
return 0;
}
uint8_t I2C_WriteNAU88L25(uint16_t addr,uint16_t dat)
{
uint8_t Tx_Data0[2];
Tx_Data0[0] = (uint8_t)(dat >> 8);
Tx_Data0[1] = (uint8_t)(dat & 0x00FF);
return ( I2cWrite_MultiByteforNAU88L25(0x1A << 1,addr,&Tx_Data0[0],2) );
}
void NAU88L25_Reset(void)
{
I2C_WriteNAU88L25(0, 0x1);
I2C_WriteNAU88L25(0, 0); // Reset all registers
CLK_SysTickDelay(10000);
printf("NAU88L25 Software Reset.\n");
}
void NAU88L25_Setup(void)
{
I2C_WriteNAU88L25(0x0003, 0x8053);
I2C_WriteNAU88L25(0x0004, 0x0001);
I2C_WriteNAU88L25(0x0005, 0x3126);
I2C_WriteNAU88L25(0x0006, 0x0008);
I2C_WriteNAU88L25(0x0007, 0x0010);
I2C_WriteNAU88L25(0x0008, 0xC000);
I2C_WriteNAU88L25(0x0009, 0x6000);
I2C_WriteNAU88L25(0x000A, 0xF13C);
I2C_WriteNAU88L25(0x000C, 0x0048);
I2C_WriteNAU88L25(0x000D, 0x0000);
I2C_WriteNAU88L25(0x000F, 0x0000);
I2C_WriteNAU88L25(0x0010, 0x0000);
I2C_WriteNAU88L25(0x0011, 0x0000);
I2C_WriteNAU88L25(0x0012, 0xFFFF);
I2C_WriteNAU88L25(0x0013, 0x0015);
I2C_WriteNAU88L25(0x0014, 0x0110);
I2C_WriteNAU88L25(0x0015, 0x0000);
I2C_WriteNAU88L25(0x0016, 0x0000);
I2C_WriteNAU88L25(0x0017, 0x0000);
I2C_WriteNAU88L25(0x0018, 0x0000);
I2C_WriteNAU88L25(0x0019, 0x0000);
I2C_WriteNAU88L25(0x001A, 0x0000);
I2C_WriteNAU88L25(0x001B, 0x0000);
I2C_WriteNAU88L25(0x001C, 0x0002);
I2C_WriteNAU88L25(0x001D, 0x301a); //301A:Master, BCLK_DIV=12.288M/8=1.536M, LRC_DIV=1.536M/32=48K
I2C_WriteNAU88L25(0x001E, 0x0000);
I2C_WriteNAU88L25(0x001F, 0x0000);
I2C_WriteNAU88L25(0x0020, 0x0000);
I2C_WriteNAU88L25(0x0021, 0x0000);
I2C_WriteNAU88L25(0x0022, 0x0000);
I2C_WriteNAU88L25(0x0023, 0x0000);
I2C_WriteNAU88L25(0x0024, 0x0000);
I2C_WriteNAU88L25(0x0025, 0x0000);
I2C_WriteNAU88L25(0x0026, 0x0000);
I2C_WriteNAU88L25(0x0027, 0x0000);
I2C_WriteNAU88L25(0x0028, 0x0000);
I2C_WriteNAU88L25(0x0029, 0x0000);
I2C_WriteNAU88L25(0x002A, 0x0000);
I2C_WriteNAU88L25(0x002B, 0x0012);
I2C_WriteNAU88L25(0x002C, 0x0082);
I2C_WriteNAU88L25(0x002D, 0x0000);
I2C_WriteNAU88L25(0x0030, 0x00CF);
I2C_WriteNAU88L25(0x0031, 0x0000);
I2C_WriteNAU88L25(0x0032, 0x0000);
I2C_WriteNAU88L25(0x0033, 0x009E);
I2C_WriteNAU88L25(0x0034, 0x029E);
I2C_WriteNAU88L25(0x0038, 0x1486);
I2C_WriteNAU88L25(0x0039, 0x0F12);
I2C_WriteNAU88L25(0x003A, 0x25FF);
I2C_WriteNAU88L25(0x003B, 0x3457);
I2C_WriteNAU88L25(0x0045, 0x1486);
I2C_WriteNAU88L25(0x0046, 0x0F12);
I2C_WriteNAU88L25(0x0047, 0x25F9);
I2C_WriteNAU88L25(0x0048, 0x3457);
I2C_WriteNAU88L25(0x004C, 0x0000);
I2C_WriteNAU88L25(0x004D, 0x0000);
I2C_WriteNAU88L25(0x004E, 0x0000);
I2C_WriteNAU88L25(0x0050, 0x2007);
I2C_WriteNAU88L25(0x0051, 0x0000);
I2C_WriteNAU88L25(0x0053, 0xC201);
I2C_WriteNAU88L25(0x0054, 0x0C95);
I2C_WriteNAU88L25(0x0055, 0x0000);
I2C_WriteNAU88L25(0x0058, 0x1A14);
I2C_WriteNAU88L25(0x0059, 0x00FF);
I2C_WriteNAU88L25(0x0066, 0x0060);
I2C_WriteNAU88L25(0x0068, 0xC300);
I2C_WriteNAU88L25(0x0069, 0x0000);
I2C_WriteNAU88L25(0x006A, 0x0083);
I2C_WriteNAU88L25(0x0071, 0x0011);
I2C_WriteNAU88L25(0x0072, 0x0260);
I2C_WriteNAU88L25(0x0073, 0x332C);
I2C_WriteNAU88L25(0x0074, 0x4502);
I2C_WriteNAU88L25(0x0076, 0x3140);
I2C_WriteNAU88L25(0x0077, 0x0000);
I2C_WriteNAU88L25(0x007F, 0x553F);
I2C_WriteNAU88L25(0x0080, 0x0420);
I2C_WriteNAU88L25(0x0001, 0x07D4);
printf("NAU88L25 Configured done.\n");
}
#endif
void SYS_Init(void)
{
/* Unlock protected registers */
SYS_UnlockReg();
/* Set XT1_OUT(PF.2) and XT1_IN(PF.3) to input mode */
PF->MODE &= ~(GPIO_MODE_MODE2_Msk | GPIO_MODE_MODE3_Msk);
/* Enable External XTAL (4~24 MHz) */
CLK_EnableXtalRC(CLK_PWRCTL_HXTEN_Msk);
/* Waiting for 12MHz clock ready */
CLK_WaitClockReady(CLK_STATUS_HXTSTB_Msk);
/* Switch HCLK clock source to HXT */
CLK_SetHCLK(CLK_CLKSEL0_HCLKSEL_HXT,CLK_CLKDIV0_HCLK(1));
/* Set core clock as PLL_CLOCK from PLL */
CLK_SetCoreClock(FREQ_192MHZ);
/* Set both PCLK0 and PCLK1 as HCLK/2 */
CLK->PCLKDIV = CLK_PCLKDIV_APB0DIV_DIV2 | CLK_PCLKDIV_APB1DIV_DIV2;
/* Enable UART module clock */
CLK_EnableModuleClock(UART0_MODULE);
/* Enable I2S0 module clock */
CLK_EnableModuleClock(I2S0_MODULE);
/* Enable I2C2 module clock */
CLK_EnableModuleClock(I2C2_MODULE);
/* Select UART module clock source */
CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART0SEL_HXT, CLK_CLKDIV0_UART0(1));
/* Set GPB multi-function pins for UART0 RXD and TXD */
SYS->GPB_MFPH &= ~(SYS_GPB_MFPH_PB12MFP_Msk | SYS_GPB_MFPH_PB13MFP_Msk);
SYS->GPB_MFPH |= (SYS_GPB_MFPH_PB12MFP_UART0_RXD | SYS_GPB_MFPH_PB13MFP_UART0_TXD);
SYS->GPF_MFPL = (SYS->GPF_MFPL & ~(SYS_GPF_MFPL_PF6MFP_Msk|SYS_GPF_MFPL_PF7MFP_Msk)) |
(SYS_GPF_MFPL_PF6MFP_I2S0_LRCK|SYS_GPF_MFPL_PF7MFP_I2S0_DO);
SYS->GPF_MFPH = (SYS->GPF_MFPH & ~(SYS_GPF_MFPH_PF8MFP_Msk|SYS_GPF_MFPH_PF9MFP_Msk|SYS_GPF_MFPH_PF10MFP_Msk)) |
(SYS_GPF_MFPH_PF8MFP_I2S0_DI|SYS_GPF_MFPH_PF9MFP_I2S0_MCLK|SYS_GPF_MFPH_PF10MFP_I2S0_BCLK );
SYS->GPD_MFPL &= ~(SYS_GPD_MFPL_PD0MFP_Msk | SYS_GPD_MFPL_PD1MFP_Msk);
SYS->GPD_MFPL |= (SYS_GPD_MFPL_PD0MFP_I2C2_SDA | SYS_GPD_MFPL_PD1MFP_I2C2_SCL);
PF->SMTEN |= GPIO_SMTEN_SMTEN10_Msk;
PD->SMTEN |= GPIO_SMTEN_SMTEN1_Msk;
}
void I2C2_Init(void)
{
/* Open I2C2 and set clock to 100k */
I2C_Open(I2C2, 100000);
/* Get I2C2 Bus Clock */
printf("I2C clock %d Hz\n", I2C_GetBusClockFreq(I2C2));
}
int32_t main (void)
{
uint32_t u32startFlag = 1;
/* Unlock protected registers */
SYS_UnlockReg();
/* Init System, peripheral clock and multi-function I/O */
SYS_Init();
/* Lock protected registers */
SYS_LockReg();
/* Init UART to 115200-8n1 for print message */
UART_Open(UART0, 115200);
printf("+------------------------------------------------------------------------+\n");
printf("| I2S Driver Sample Code with WAU88L25 |\n");
printf("+------------------------------------------------------------------------+\n");
printf(" NOTE: This sample code needs to work with WAU88L25.\n");
/* Init I2C2 to access Codec */
I2C2_Init();
// Plug-In DET
SYS->GPA_MFPL = (SYS->GPA_MFPL & ~(SYS_GPA_MFPL_PA4MFP_Msk));
GPIO_SetMode(PA, BIT4, GPIO_MODE_OUTPUT);
PA4 = 1;
#if (!NAU8822)
/* Reset NAU88L25 codec */
NAU88L25_Reset();
#endif
/* Open I2S0 interface and set to slave mode, stereo channel, I2S format */
I2S_Open(I2S0, I2S_MODE_SLAVE, 16000, I2S_DATABIT_16, I2S_DISABLE_MONO, I2S_FORMAT_I2S);
NVIC_EnableIRQ(I2S0_IRQn);
/* 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;
// select source from HXT(12MHz)
CLK_SetModuleClock(I2S0_MODULE, CLK_CLKSEL3_I2S0SEL_HXT, 0);
/* Set MCLK and enable MCLK */
I2S_EnableMCLK(I2S0, 12000000);
#if NAU8822
/* Initialize NAU8822 codec */
NAU8822_Setup();
#else
I2S0->CTL0 |= I2S_CTL0_ORDER_Msk;
/* Initialize NAU88L25 codec */
CLK_SysTickDelay(20000);
NAU88L25_Setup();
#endif
/* Enable Rx threshold level interrupt */
I2S_EnableInt(I2S0, I2S_IEN_RXTHIEN_Msk);
/* Enable I2S Rx function to receive data */
I2S_ENABLE_RX(I2S0);
while(1)
{
if (u32startFlag)
{
/* Enable I2S Tx function to send data when data in the buffer is more than half of buffer size */
if (u32BuffPos >= BUFF_LEN/2)
{
I2S_EnableInt(I2S0, I2S_IEN_TXTHIEN_Msk);
I2S_ENABLE_TX(I2S0);
u32startFlag = 0;
}
}
}
}
/*** (C) COPYRIGHT 2016 Nuvoton Technology Corp. ***/
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