/**************************************************************************//**
* [url=home.php?mod=space&uid=288409]@file[/url] main.c
* [url=home.php?mod=space&uid=895143]@version[/url] V2.1
* $Revision: 8 $
* $Date: 16/01/09 3:40p $
* [url=home.php?mod=space&uid=247401]@brief[/url] A MP3 file player demo using internal audio codec used to playback MP3 file stored in SD card.
*
* @note
* Copyright (C) 2016 Nuvoton Technology Corp. All rights reserved.
*
******************************************************************************/
#include <stdio.h>
#include <string.h>
#include "NUC505Series.h"
#include "config.h"
#include "diskio.h"
#include "ff.h"
uint32_t volatile u32BuffPos = 0;
FATFS FatFs[_VOLUMES]; /* File system object for logical drive */
#ifdef __ICCARM__
#pragma data_alignment=32
BYTE Buff[16] ; /* Working buffer */
#endif
#ifdef __ARMCC_VERSION
__align(32) BYTE Buff[16] ; /* Working buffer */
#endif
/*---------------------------------------------------------*/
/* User Provided RTC Function for FatFs module */
/*---------------------------------------------------------*/
/* This is a real time clock service to be called from */
/* FatFs module. Any valid time must be returned even if */
/* the system does not support an RTC. */
/* This function is not required in read-only cfg. */
unsigned long get_fattime (void)
{
unsigned long tmr;
tmr=0x00000;
return tmr;
}
//---------------------------------------------------------
//--- Initial SD0 multi-function GPIO pin
//
// NUC505 support 3 groups of GPIO pins and SD sockets for same one SD port.
// Please select ONLY ONE configuration from them.
// 1. SD-A socket on daughter board + default SD0_Init(). (Default)
// 2. SD-B socket on main board + short JP3 and JP4
// + define compile flag "SDH_GPIO_GB" in SD0_Init().
// (Note: this configuration conflict with UART1)
// 3. SD-C socket on main board + short JP3 and JP2
// + define compile flag "SDH_GPIO_GA" in SD0_Init()
// (Note: this configuration conflict with UART0)
//---------------------------------------------------------
void SD0_Init(void)
{
#ifdef SDH_GPIO_GA
// The group A are GPA10~11, GPA13~15, GPB0~1
// Conflict with UART0
// printf("SD_Open(): Configure GPIO group A as SDH pins.\n");
SYS->GPA_MFPH &= (~0x77707700);
SYS->GPA_MFPH |= 0x44404400;
SYS->GPA_MFPH &= (~0x00000077);
SYS->GPB_MFPL |= 0x00000044;
#elif defined SDH_GPIO_GB
// The group B are GPB2~3, GPB5~9
// Conflict with UART1
// printf("SD_Open(): Configure GPIO group B as SDH pins.\n");
SYS->GPB_MFPL &= (~0x77707700);
SYS->GPB_MFPL |= 0x44404400;
SYS->GPB_MFPH &= (~0x00000077);
SYS->GPB_MFPH |= 0x00000044;
#elif defined SDH_GPIO_G_48PIN
// The group 48PIN are GPB0~3, GPB5~7 for NUC505 48PIN chip
// Conflict with both UART0 and UART1
// printf("SD_Open(): Configure special GPIO as SDH pins for 48 pins NUC505 chip.\n");
SYS->GPB_MFPL &= (~0x77707777);
SYS->GPB_MFPL |= 0x44404444;
#else // default for defined SDH_GPIO_GC
// The group C are GPC0~2, GPC4~7
// printf("SD_Open(): Configure GPIO group C as SDH pins.\n");
SYS->GPC_MFPL &= (~0x77770777);
SYS->GPC_MFPL |= 0x11110111;
#endif
}
void SYS_Init(void)
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init System Clock */
/*---------------------------------------------------------------------------------------------------------*/
/* Unlock protected registers */
//SYS_UnlockReg();
/* Enable XTAL */
// CLK->PWRCTL |= CLK_PWRCTL_HXTEN_Msk;
CLK_SetCoreClock(100000000);
/* PCLK divider */
CLK_SetModuleClock(PCLK_MODULE, NULL, 1);
/* Lock protected registers */
//SYS_LockReg();
//--- Initial SD0 multi-function pin
SD0_Init();
}
void UART0_Init(void)
{
/* Enable UART0 Module clock */
CLK_EnableModuleClock(UART0_MODULE);
/* UART0 module clock from EXT */
CLK_SetModuleClock(UART0_MODULE, CLK_UART0_SRC_EXT, 0);
/* Reset IP */
SYS_ResetModule(UART0_RST);
/* Configure UART0 and set UART0 Baud-rate */
UART_Open(UART0, 115200);
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Configure multi-function pins for UART0 RXD and TXD */
SYS->GPB_MFPL = (SYS->GPB_MFPL & (~SYS_GPB_MFPL_PB0MFP_Msk) ) | SYS_GPB_MFPL_PB0MFP_UART0_TXD;
SYS->GPB_MFPL = (SYS->GPB_MFPL & (~SYS_GPB_MFPL_PB1MFP_Msk) ) | SYS_GPB_MFPL_PB1MFP_UART0_RXD;
}
void I2S_Init(void)
{
/* Enable I2S Module clock */
CLK_EnableModuleClock(I2S_MODULE);
/* I2S module clock from APLL */
//FIXME APLL CLOCK
// ideal clock is 49.152MHz, real clock is 49152031Hz
// CLK_SET_APLL(CLK_APLL_49152031); // APLL is 49152031Hz for 48000Hz
CLK_SET_APLL(CLK_APLL_45158425); // APLL is 45158425Hz for 44100Hz
CLK_SetModuleClock(I2S_MODULE, CLK_I2S_SRC_APLL, 0); // 0 means (APLL/1)
/* Reset IP */
SYS_ResetModule(I2S_RST);
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Configure multi-function pins for I2S */
// GPC[8] = MCLK
// GPC[9] = DIN
// GPC[10] = DOUT
// GPC[11] = LRCLK
// GPC[12] = BCLK
SYS->GPC_MFPH = (SYS->GPC_MFPH & (~SYS_GPC_MFPH_PC8MFP_Msk) ) | SYS_GPC_MFPH_PC8MFP_I2S_MCLK;
SYS->GPC_MFPH = (SYS->GPC_MFPH & (~SYS_GPC_MFPH_PC9MFP_Msk) ) | SYS_GPC_MFPH_PC9MFP_I2S_DIN;
SYS->GPC_MFPH = (SYS->GPC_MFPH & (~SYS_GPC_MFPH_PC10MFP_Msk) ) | SYS_GPC_MFPH_PC10MFP_I2S_DOUT;
SYS->GPC_MFPH = (SYS->GPC_MFPH & (~SYS_GPC_MFPH_PC11MFP_Msk) ) | SYS_GPC_MFPH_PC11MFP_I2S_LRCLK;
SYS->GPC_MFPH = (SYS->GPC_MFPH & (~SYS_GPC_MFPH_PC12MFP_Msk) ) | SYS_GPC_MFPH_PC12MFP_I2S_BCLK;
}
/*---------------------------------------------------------------------------------------------------------*/
/* Main Function */
/*---------------------------------------------------------------------------------------------------------*/
int32_t main (void)
{
/* Init System, IP clock and multi-function I/O */
SYS_Init();
/* Init UART0 to 115200-8n1 for print message */
UART0_Init();
printf("+------------------------------------------------------------------------+\n");
printf("| MP3 Player Sample with Internal CODEC |\n");
printf("+------------------------------------------------------------------------+\n");
printf(" Please put MP3 files on SD card \n");
printf("rc=%d\n", (WORD)disk_initialize(0));
disk_read(0, Buff, 2, 1);
//f_mount(0, &FatFs[0]); // for FATFS v0.09
// Register work area to the default drive
f_mount(&FatFs[0], "", 0); // for FATFS v0.11
/* Init I2S, IP clock and multi-function I/O */
I2S_Init();
MP3Player();
while(1);
}
/*** (C) COPYRIGHT 2015 Nuvoton Technology Corp. ***/
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