Matthew Petersen
Arduino MP3 Shield MP3Player This program comes from http://mbed.org/cookbook/VS1002-MP3-Decoder (Very small modification done to fit latest libs) **Additional small mods to xshige\'s code by mpetersen3 and kbuck3 to add a user interface
Revision 0:9cb0b3d1b9e6, committed 2010-10-12
- Comitter:
- mpetersen3
- Date:
- Tue Oct 12 21:25:35 2010 +0000
- Commit message:
- This revision adds a user interface for the mp3 player
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/FATFileSystem.lib Tue Oct 12 21:25:35 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_unsupported/code/fatfilesystem/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TextLCD.lib Tue Oct 12 21:25:35 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/TextLCD/#a53b3e2d6f1e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/VS1002.cpp Tue Oct 12 21:25:35 2010 +0000
@@ -0,0 +1,283 @@
+#include "VS1002.h"
+#include "mbed.h"
+#include "TextLCD.h"
+AnalogIn rotary1(p19);
+DigitalIn pause1(p28);
+TextLCD lcd(p10, p18, p24, p23, p22, p21, TextLCD::LCD16x2 ); // rs, e, d0-d3
+
+
+/* ==================================================================
+ * Constructor
+ * =================================================================*/
+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, PinName vol)
+ :
+ _sd(mmosi, mmiso, ssck, ccs, name),
+ _spi(mosi, miso, sck),
+ _CS(cs),
+ _RST(rst),
+ _DREQ(dreq),
+ _DCS(dcs),
+ _VOL(vol) {
+
+ }
+
+/*===================================================================
+ * Functions
+ *==================================================================*/
+
+void VS1002::cs_low(void)
+{
+ _CS = 0;
+}
+void VS1002::cs_high(void)
+{
+ _CS = 1;
+}
+void VS1002::dcs_low(void)
+{
+ _DCS = 0;
+}
+void VS1002::dcs_high(void)
+{
+ _DCS = 1;
+}
+void VS1002::sci_en(void) //SCI enable
+{
+ cs_high();
+ dcs_high();
+ cs_low();
+}
+void VS1002::sci_dis(void) //SCI disable
+{
+ cs_high();
+}
+void VS1002::sdi_en(void) //SDI enable
+{
+ dcs_high();
+ cs_high();
+ dcs_low();
+}
+void VS1002::sdi_dis(void) //SDI disable
+{
+ dcs_high();
+}
+void VS1002::reset(void) //hardware reset
+{
+ wait(0.01);
+ _RST = 0;
+ wait(0.01);
+ _RST = 1;
+ wait(0.10);
+}
+void VS1002::power_down(void) //hardware and software reset
+{
+ cs_low();
+ reset();
+ sci_write(0x00, SM_PDOWN);
+ wait(0.01);
+ reset();
+}
+void VS1002::sci_initialise(void)
+{
+ _RST = 1; //no reset
+ _spi.format(8,0); //spi 8bit interface, steady state low
+ _spi.frequency(1000000); //rising edge data record, freq. 1Mhz
+
+ cs_low();
+ for(int i=0; i<4; i++)
+ {
+ _spi.write(0xFF); //clock the chip a bit
+ }
+ cs_high();
+ dcs_high();
+ wait_us(5);
+}
+void VS1002::sdi_initialise(void)
+{
+ _spi.format(8,0);
+ _spi.frequency(7000000); //set to 7MHz
+
+ cs_high();
+ dcs_high();
+}
+void VS1002::sci_write(unsigned char address, unsigned short int data)
+{
+ sci_en(); //enables SCI/disables SDI
+
+ while(!_DREQ); //wait unitl data request is high
+ _spi.write(0x02); //SCI write
+ _spi.write(address); //register address
+ _spi.write((data >> 8) & 0xFF); //write out first half of data word
+ _spi.write(data & 0xFF); //write out second half of data word
+
+ sci_dis(); //enables SDI/disables SCI
+ wait_us(5);
+}
+void VS1002::sdi_write(unsigned char datum)
+{
+ sdi_en();
+
+ while(!_DREQ);
+ _spi.write(datum);
+
+ sci_dis();
+}
+unsigned short int VS1002::read(unsigned short int address)
+{
+ cs_low(); //enables SCI/disables SDI
+
+ while(!_DREQ); //wait unitl data request is high
+ _spi.write(0x03); //SCI write
+ _spi.write(address); //register address
+ unsigned short int received = _spi.write(0x00); //write out dummy byte
+ received <<= 8;
+ received += _spi.write(0x00); //write out dummy byte
+
+ cs_high(); //enables SDI/disables SCI
+
+ return received; //return received word
+}
+void VS1002::sine_test_activate(unsigned char wave)
+{
+ cs_high(); //enables SDI/disables SCI
+
+ while(!_DREQ); //wait unitl data request is high
+ _spi.write(0x53); //SDI write
+ _spi.write(0xEF); //SDI write
+ _spi.write(0x6E); //SDI write
+ _spi.write(wave); //SDI write
+ _spi.write(0x00); //filler byte
+ _spi.write(0x00); //filler byte
+ _spi.write(0x00); //filler byte
+ _spi.write(0x00); //filler byte
+
+ cs_low(); //enables SCI/disables SDI
+}
+void VS1002::sine_test_deactivate(void)
+{
+ cs_high();
+
+ while(!_DREQ);
+ _spi.write(0x45); //SDI write
+ _spi.write(0x78); //SDI write
+ _spi.write(0x69); //SDI write
+ _spi.write(0x74); //SDI write
+ _spi.write(0x00); //filler byte
+ _spi.write(0x00); //filler byte
+ _spi.write(0x00); //filler byte
+ _spi.write(0x00); //filler byte
+}
+void VS1002::volume(void)
+{
+ #ifdef FIXED_VOL
+ unsigned char volumize = (0 * 255); // FIXED VOL (not support volume input)
+ #else
+ unsigned char volumize = (_VOL * 255);
+ #endif
+ while(!_DREQ);
+
+ unsigned short int attenuation = ((256 * volumize) + volumize);
+ sci_write(0x0B, attenuation);
+
+}
+
+void VS1002::play_song(int song_number)
+{
+ /*====== Song Select ======*/
+
+// char list[10000] = {0};
+ char list[1000] = {0};
+ char str[16] = {"/sd/"};
+ unsigned int startplace = 0;
+ unsigned int endplace = 0;
+ unsigned int play = 0;
+ num_of_files = 0;
+
+ DIR *d;
+ struct dirent *p;
+ d = opendir("/sd");
+ if(d != NULL)
+ {
+ while((p = readdir(d)) != NULL)
+ {
+ strcat(list, "*");
+ strcat(list, p->d_name);
+ num_of_files++;
+ }
+ }
+ else
+ {
+ perror("Could not open directory!");
+ }
+ strcat(list, "*"); //terminating *
+ if(num_of_files < song_number)
+ {
+ return;
+ }
+ while(play != song_number)
+ {
+ char symbol = list[startplace];
+ startplace++;
+ if(symbol == 0x2A) //0x2A = "*"
+ {
+ play++;
+ }
+ }
+ play = 0;
+ while(play != (song_number+1))
+ {
+ char symbol = list[endplace];
+ endplace++;
+ if(symbol == 0x2A) //0x2A = "*"
+ {
+ play++;
+ }
+ }
+
+ strncat(str, &list[startplace], endplace-startplace);
+ str[(endplace-startplace)+3] = '\0';
+
+//printf("list: %s\r\n",list); //debug
+
+ /*====== File Transfer ======*/
+
+ // return if not MP3 file
+ if (!((strstr(str,"MP3")!=NULL)||(strstr(str,"mp3")!=NULL))) return;
+ // display filename.mp3 to the lcd screen
+ lcd.printf("Now Playing: %s\r\n",str);
+
+ FILE *song;
+ unsigned char array[512];
+
+ song = fopen(str, "rb");
+
+ if(!song)
+ {
+ exit(1);
+ }
+
+ while((!feof(song))&&!pause1)
+ {
+ fread(&array, 1, 512, song);
+ for(int i=0; i<512; i++)
+ {
+#ifndef FS_ONLY
+ sdi_write(array[i]);
+ // printf(".");
+#endif
+ }
+#ifndef FS_ONLY
+ volume();
+#endif
+ }
+ for(int n=0; n<2048; n++)
+ {
+#ifndef FS_ONLY
+ sdi_write(0x00);
+#endif
+ }
+ fclose(song); //close the file
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/VS1002.h Tue Oct 12 21:25:35 2010 +0000
@@ -0,0 +1,74 @@
+#ifndef VS1002_H
+#define VS1002_H
+
+//#define FS_ONLY
+#define FIXED_VOL
+
+#include "mbed.h"
+#include "SDFileSystem.h"
+#include "string"
+#include "string.h"
+
+//SCI_MODE register bits as of p.26 of the datasheet
+#define SM_DIFF 0x0001
+#define SM_SETTOZERO 0x0002
+#define SM_RESET 0x0004
+#define SM_OUTOFWAV 0x0008
+#define SM_PDOWN 0x0010
+#define SM_TESTS 0x0020
+#define SM_STREAM 0x0040
+#define SM_PLUSV 0x0080
+#define SM_DACT 0x0100
+#define SM_SDIORD 0x0200
+#define SM_SDISHARE 0x0400
+#define SM_SDINEW 0x0800
+#define SM_ADPCM 0x1000
+#define SM_ADPCM_HP 0x2000
+
+
+class VS1002 {
+
+public:
+// VS1002(int _mmosi, int _mmiso, int _ssck, int _ccs, const char* _name,
+// int _mosi, int _miso, int _sck, int _cs, int _rst, int _dreq, int _dcs, int _vol);
+ 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, PinName _vol);
+
+ void cs_low(void);
+ void cs_high(void);
+ void dcs_low(void);
+ void dcs_high(void);
+ void sci_en(void);
+ void sci_dis(void);
+ void sdi_en(void);
+ void sdi_dis(void);
+
+ void sci_initialise(void);
+ void sdi_initialise(void);
+ void reset(void);
+ void power_down(void);
+
+ void sci_write(unsigned char, unsigned short int);
+ void sdi_write(unsigned char);
+ unsigned short int read(unsigned short int);
+ void sine_test_activate(unsigned char);
+ void volume(void);
+ void sine_test_deactivate(void);
+ void play_song(int);
+
+ int num_of_files;
+
+ DigitalIn _DREQ;
+ DigitalOut _RST;
+ AnalogIn _VOL;
+
+protected:
+
+ SPI _spi;
+ DigitalOut _CS;
+ DigitalOut _DCS;
+ SDFileSystem _sd;
+
+};
+#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Oct 12 21:25:35 2010 +0000
@@ -0,0 +1,114 @@
+
+#include "mbed.h"
+#include "VS1002.h"
+#include "TextLCD.h"
+
+TextLCD lcd2(p10, p18, p24, p23, p22, p21, TextLCD::LCD16x2 ); // rs, e, d0-d3
+
+
+/*
+
+ Arduino MP3 Shield MP3Player_UI
+ 2010/10/10
+ This program comes from http://mbed.org/cookbook/VS1002-MP3-Decoder and is the work of xshige.
+ (Very small modification done to fit latest libs)
+**more small modifications done to add a small user interface via LCD screen, rotary encoder and dipswitch,
+see http://mbed.org/cookbook/MP3-Player for more information on pinout for these devices, these UI mods by (mpetersen3 and kbuck3)
+
+ Pin Assigenment for Arduino MP3 Shield
+ (VS1053 employed, issued by sparkfun.com)
+
+ MP3 Sheild Side | mbed Side
+ ---------------------------------------
+ D2(BSYNC)------------17
+ D3(DREQ)-------------16
+
+ D9(CS)---------------14
+
+ D11(MOSI)------------5
+ D12(MISO)------------6
+ D13(SCK)-------------7
+
+ GND------------------GND(1)
+ 5V-------------------VU(39)
+ RESET----------------15
+
+ Volume will not used. (pin20 will not used)
+
+*/
+
+
+//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, PinName vol)
+VS1002 mp3(p11, p12, p13, p8, "sd",
+ p5, p6, p7, p14, p15,
+ p16, p17, p20); //p14 in BoB non-functional so replace with p18
+AnalogIn rotary(p19);
+DigitalIn pause(p28);
+
+int main () {
+ // make debug port Fast
+ Serial pc(USBTX, USBRX);
+ pc.baud(9600);
+
+
+ // pc.baud(115200);
+// pc.baud(230400);
+
+ /*============================================================
+ * MP3 Initialising
+ *==========================================================*/
+#ifndef FS_ONLY
+ 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();
+#endif
+ /*============================================================
+ * This is the good part
+ *==========================================================*/
+ int a=0;
+ printf("%i\n",a);
+ while (true) {
+
+
+
+
+ mp3.play_song(a);
+ a++;
+ wait(1);
+
+ if (pause) {
+ while (pause) {
+ // shows you which song number you have chosen using the rotary dial
+ lcd2.printf("You have chosen the %i song\n",a);
+ if ((rotary>0)&&(rotary<=0.1)) {
+ a=1;
+
+ } else if ((rotary>0.1)&&(rotary<=0.2)) {
+ a=2;
+ } else if ((rotary>0.2)&&(rotary<=0.3)) {
+ a=3;
+ } else if ((rotary>0.3)&&(rotary<=0.4)) {
+ a=4;
+ } else if ((rotary>0.4)&&(rotary<=0.5)) {
+ a=5;
+ } else if ((rotary>0.5)&&(rotary<=0.6)) {
+ a=6;
+ } else if ((rotary>0.6)&&(rotary<=0.7)) {
+ a=7;
+ } else if ((rotary>0.7)&&(rotary<=0.8)) {
+ a=8;
+ } else if ((rotary>0.8)&&(rotary<=0.9)) {
+ a=9;
+ } else if ((rotary>0.9)&&(rotary<=1.0)) {
+ a=10;
+ }
+ }
+ }
+ }
+ printf("Done.\r\n");
+ }
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Oct 12 21:25:35 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e