Playing MP3 with Music Shield and WIZwiki-W7500
Dependencies: FTPClient javakysSDFileSystem2 WIZnetInterface mbed
Prerequisite
This example is for playing MP3 file stored in SD card on WIZwiki-W7500 and updating MP3 files from server to SD card via FTP protocol.
To implement this function, you need a Platform board, network Interface board, MP3 decoder board and SD card. Below are what we used.
- WIZwiki-W7500 from WIZnet (Platform board and Ethernet I/F board)
- Music shield from Seeed Studio
- SD card
Hardware Configuration
WIZwiki-W7500 Pin map
SPI1 for SD Card
SPI1 on WIZwiki-W7100 is for reading from or writing to SD card and pins for SPI1 are PB_0, PB_1, PB_2 and PB_3.
SPI0 and other control pins for MP3 decoder
WIZwiki-W7500 communicates to MP3 decoder on Music Shield via SPI0 pins of which consists of PC_12, D11, D12 and D13.
And PC_13, PC_14 and PC-15 are used for DCS, DREQ and RST, respectively.
InterruptIn pins for 5-Way Navigation Switch
D3, D4, D5, D6 and D7 are connected to 5 way navigation switch on Music Shield.
When user pushes the switch to one way, a relevant pin is grounded so that he or she should make it set high at the beginning.
Software
SPI Initialization
//Declaration in VS1002.cpp VS1002::VS1002(PinName mmosi, PinName mmiso, PinName ssck, PinName ccs, const char *name, PinName mosi, PinName miso, PinName sck, PinName cs, PinName rst, PinName dreq, PinName dcs) : _DREQ(dreq), _RST(rst), _spi(mosi, miso, sck), _CS(cs), _DCS(dcs), _sd(mmosi, mmiso, ssck, ccs, name) { } //Initialization in main.cpp VS1002 mp3(PB_3, PB_2, PB_1, PB_0,"sdc",D11, D12 ,D13, PC_12, PC_15, PC_14, PC_13);
Mapping 5-Way Navigation Switch into InterruptIn pins
main.cpp
InterruptIn K_VU(D3); // Volume UP Key InterruptIn K_VD(D7); // Volume Down Key InterruptIn K_FW(D4); // Foward Key InterruptIn K_BW(D6); // Backward Key InterruptIn K_ONOFF(D5); //Play/Resume or Pause Key
Additional codes due to mbed library bug of WIZwiki-W7500
main.cpp
//Operating Clock Frequency Set *(volatile uint32_t *)(0x41001014) = 0x0060100; //Set all InterruptIn pins to Internal PullUp *(volatile uint32_t *)(0x41003000) = 0x00000002; //D6 *(volatile uint32_t *)(0x41003004) = 0x00000002; //D5 *(volatile uint32_t *)(0x41003008) = 0x00000002; //D4 *(volatile uint32_t *)(0x41003080) = 0x00000002; //D3 *(volatile uint32_t *)(0x41003098) = 0x00000002; //D7
Caution
This example can play only MP3 files with up to 192KHz sample rate//
Diff: main.cpp
- Revision:
- 0:1dd4081a2bb9
- Child:
- 2:cea9f6564641
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Thu Mar 30 06:15:13 2017 +0000 @@ -0,0 +1,253 @@ +#include "mbed.h" +#include "EthernetInterface.h" +#include "SDFileSystem.h" +#include <stdio.h> +#include <string.h> + +#include "FTPClient.h" +#include "VS1002.h" +#include "SSD1306.h" + +#define MAC "\x00\x08\xDC\x11\x34\x78" +#define IP "192.168.0.20" +#define MASK "255.255.255.0" +#define GATEWAY "192.168.0.1" + +#define FTP_SERVER_IP "192.168.0.10" + +#define _MAX_FNAME_LEN_ 127 +#define _FTP_UPDATE_TIME_ 10 + + +Serial uart(USBTX, USBRX); +AnalogIn ain(A5); +//SDFileSystem sd(p5, p6, p7, p8, "sd"); // LPC1768 MBD2PMD +//SDFileSystem sd(P0_18, P0_17, P0_15, P0_16, "sd"); // Seeeduino Arch Pro SPI2SD +//SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // K64F +//SDFileSystem sd(PB_3, PB_2, PB_1, PB_0, "sd"); // WIZwiki-W7500 + +EthernetInterface eth; +InterruptIn K_VU(D3); // Create the interrupt receiver object on pin 26 +InterruptIn K_VD(D7); // Create the interrupt receiver object on pin 26 +InterruptIn K_FW(D4); // Foward Key +InterruptIn K_BW(D6); // Backward Key +InterruptIn K_ONOFF(D5); //Play / Pause Key +VS1002 mp3(PB_3, PB_2, PB_1, PB_0,"sdc",D11, D12 ,D13, PC_12, PC_15, PC_14, PC_13); //Setup Audio decoder. Name is VS1002 even though VS1053 is used. + +FTPClient myFTP("/sdc"); // mountname in MySeeedStudioTFTv2 + +//Ticker ledTick; + +/* Global Variables to store Status*/ +int new_song_number=2; //Variable to store the Song Number +int volume_set=-20; //Variable to store the Volume +int previous_volume; //Variable to store the volume when muted +bool pause=false; //Variable to store the status of Pause button +bool mute=false; //Variable to store the status of mute button + +int check=0; //Capacitative touch generates interrupt on both press and release. This variable tracks this and updates only on press. +//char *song_name[9]={"Good Day","Leong","Sponsor","I'm So Sexy","My Life","Oh My god","Wonderful bar","Whale Hunting","Love"}; //Array of song names entered manually + +uint32_t ftp_time_1s = 0; + +char myfilelist[MAX_SS] = {0,}; + +/*void ledTickfunc() +{ + if(ftp_time_1s) + { + //printf("enter ftp_time_1s:%d\r\n", ftp_time_1s); + if(ftp_time_1s++ > _FTP_UPDATE_TIME_) ftp_time_1s = 0; + } +}*/ +void Volume_Up() +{ + volume_set+=3; // Volume Up + if(volume_set>=0) + volume_set=0; +} + +void Volume_Down() +{ + volume_set-=3; //Volume Down + if(volume_set<-55) + volume_set=-55; +} + +void Song_Forward() +{ + new_song_number += 1; + if(new_song_number == 10) + new_song_number = 1; +} + +void Song_Backward() +{ + if(new_song_number == 1) + new_song_number = 9; + else + new_song_number -= 1; +} + +void Play_Pressed() +{ + pause = !pause; +} + +int main (void) +{ + *(volatile uint32_t *)(0x41001014) = 0x0060100; +// *(volatile uint32_t *)(0x41003000) = 0x10; //D6 +// *(volatile uint32_t *)(0x41003004) = 0x10; //D5 +// *(volatile uint32_t *)(0x41003008) = 0x10; //D4 +// *(volatile uint32_t *)(0x41003080) = 0x10; //D3 +// *(volatile uint32_t *)(0x41003098) = 0x10; //D7 + + unsigned int update_count_s=6; + unsigned int update_count_ms=0; + unsigned int ain_temp=0; + //char* my_text = "GIF2015"; + /*char* tok = NULL; + char* lasts = NULL; + char filename[_MAX_FNAME_LEN_]; + FILE* fp;*/ + + init(); + cls(); + //OLED_DrawBMP(0,0,128,8,(unsigned char *)GIF2015); + //OLED_ShowStr(0,0,my_text,2); +// OLED_DrawBMP(0,0,128,8,(unsigned char *)wiznet); + //LED_P23x32Str(0, 0, my_text); +// Serial Interface eth; + uart.baud(115200); + uart.printf("Initializing\r\n"); + +// EthernetInterface eth; + uart.printf("Initializing Ethernet\r\n"); + + //eth.init(); //Use DHCP + eth.init((uint8_t*)MAC,IP,MASK,GATEWAY); //IP,mask,Gateway + uart.printf("Connecting\r\n"); + eth.connect(); + uart.printf("IP Address is %s\r\n", eth.getIPAddress()); + +// Check File System + uart.printf("Checking File System\r\n"); + DIR *d = opendir("/sdc/"); + if (d != NULL) { + uart.printf("SD Card Present\r\n"); + closedir(d); + } else { + uart.printf("SD Card Root Directory Not Found\r\n"); + } + + uint32_t tmp; + tmp = *(volatile uint32_t *)(0x41003000); //D6 + uart.printf("Before set, D6 : %08X\r\n", tmp); + tmp = 0x00000002; + *(volatile uint32_t *)(0x41003000) = tmp; + tmp = *(volatile uint32_t *)(0x41003004); //D5 + uart.printf("Before set, D5 : %08X\r\n", tmp); + tmp = 0x00000002; + *(volatile uint32_t *)(0x41003004) = tmp; + tmp = *(volatile uint32_t *)(0x41003008); //D4 + uart.printf("Before set, D4 : %08X\r\n", tmp); + tmp = 0x00000002; + *(volatile uint32_t *)(0x41003008) = tmp; + tmp = *(volatile uint32_t *)(0x41003080); //D3 + uart.printf("Before set, D3 : %08X\r\n", tmp); + tmp = 0x00000002; + *(volatile uint32_t *)(0x41003080) = tmp; + tmp = *(volatile uint32_t *)(0x41003098); //D7 + uart.printf("Before set, D5 : %08X\r\n", tmp); + tmp = 0x00000002; + *(volatile uint32_t *)(0x41003098) = tmp; + + + //ledTick.attach(&ledTickfunc,2); + /* UI Button setup */ + K_VU.fall(&Volume_Up); +// K_VU.mode(PullUp); + K_VD.fall(&Volume_Down); +// K_VD.mode(PullUp); + K_ONOFF.fall(&Play_Pressed); + // K_ONOFF.mode(PullUp); + K_FW.fall(&Song_Forward); + // K_FW.mode(PullUp); + K_BW.fall(&Song_Backward); + // K_BW.mode(PullUp); + + tmp = *(volatile uint32_t *)(0x41003000); //D6 + uart.printf("After set, D6 : %08X\r\n", tmp); + tmp = *(volatile uint32_t *)(0x41003004); //D5 + uart.printf("After set, D5 : %08X\r\n", tmp); + tmp = *(volatile uint32_t *)(0x41003008); //D4 + uart.printf("After set, D4 : %08X\r\n", tmp); + tmp = *(volatile uint32_t *)(0x41003080); //D3 + uart.printf("After set, D3 : %08X\r\n", tmp); + tmp = *(volatile uint32_t *)(0x41003098); //D7 + uart.printf("After set, D5 : %08X\r\n", tmp); + + while(1) + { +/* + update_count_ms++; + if(update_count_ms>5000) + { + printf("update_count_ms count : %d\r\n", update_count_s); + update_count_ms=0; + update_count_s++; + } + //printf("ftp_time_1s:%d\r\n", ftp_time_1s); + //if(ftp_time_1s == 0) + if(update_count_s>=5) + { + //Configure the display driver + update_count_s = 0; + + printf(" UPDATING MP3\r\n"); + printf("==================\n\r\n"); + + if(myFTP.open("192.168.0.10", 21, "user", "pass")) + { + printf("Connect Success to FTPServer\r\n"); + printf("Connected to FTP Server\r\n"); + + myFTP.getfile("1.mp3"); + myFTP.getfile("2.mp3"); + myFTP.getfile("3.mp3"); + + printf("\n UPDATE DONE\n\r\n"); + myFTP.quit(); + } + else + { + printf(" Can't connect to FTP Server\r\n"); + printf(" UPDATE FAIL\r\n"); + } + printf("==================\n"); + } +*/ + + /*============================================================ + * MP3 Initialising + *==========================================================*/ + + mp3._RST = 1; + mp3.cs_high(); //chip disabled + mp3.sci_initialise(); //initialise MBED + mp3.sci_write(0x00,(SM_SDINEW+SM_STREAM+SM_DIFF)); + mp3.sci_write(0x03, 0x9800); + mp3.sdi_initialise(); + + ain_temp = ain.read_u16(); + //printf("normalized: %d \n\r", ain_temp); + +// if (pause) +// { + printf("enter song\r\n"); + printf("song number: %d\r\n", new_song_number); + mp3.play_song(new_song_number); +// } + } +}