Home › Forums › Sparkfun MP3 Shield Library Support Forum › SFEMP3Shield works with Arduino Due › Reply To: SFEMP3Shield works with Arduino Due
Sorry, I cannot use the “code” tag correctly, so I repeat my post:
Here is a short code than I get on Sparkfun site, if I remember well.
It only use SPI library. It does not use SD card, the mp3 data is in an array. I just modify it to run on Due. It must play with no modification on your board.
As there is no calls to external functions (except SPI), I think it is more easy to debug. Hope you would hear it says hello!
The code:
=======================================================================
/*
3-16-2011
Spark Fun Electronics 2011
Nathan Seidle
This code is public domain but you buy me a beer if you use this and we meet someday (Beerware license).
This code works with the MP3 Shield based on the VS1053 IC. I wrote it to work only with VS1053. Attach
the shield, attach head phones, load code, and you should hear ‘Hello’ four times. Debugging is done at 115200bps.
This code is heavily based on Rui’s example code. Nice work Rui! You got me up and running. I just made some
low level improvements.
http://macauadventure.com/robotics/arduino/hello_world_2.pde
Rui has embedded an MP3 file within the Arduino code so no external SD card is necessary.
There is a lot of comments here because these are all the gotchas I found using the VS1053.
The flow of data is controlled by two pins:
xDCS: Pull low to send data
xCS: Pull low to send control commands
From now on, xCS (aka *CS) will be called CS. The x just means it’s active low which will
be taken care of in firmware.
We can also remove the need for DCS by setting SM_SDISHARE = 1. DCS signal is internally generated by
inverting CS input. However, if we want to hook up an external SD card, this is a bad idea. The reason is that
if we combine the two pins (CS and DCS) then we always have to be in one of the modes (either data or control).
This is bad since we need to get the VS1053 off the SPI bus so we can go grab data bytes from the SD card.
Four pins are needed to control the VS1503:
DREQ
CS
DCS
Reset (optional but good to have access to)
Plus the SPI bus
Please make not of what version of the MP3 shield you have:
1) Shield with VS1033 may not work with this code
2) Shield with VS1053 works with this code but requires the TX and RX traces to be cut in order to boot load an Arduino
3) This code works best with the newest MP3 shield with VS1053 and SD combination
SCI: Pull XCS low to send a command to the VS1053. When a new SCI operation is sent
the VS1053 pulls DREQ low. We then have to wait for VS1053 to let DREQ go high again.
SCI consists of instruction byte, address byte, and 16-bit data word.
XCS should be low for the full duration of operation.
Size of audio FIFO is 2048 stereo (2×16 bit) samples. If DREQ is high,
VS1053B can take, at a minimum, 32 bytes of SDI data. DREQ is low when stream
buffer is full.
The max SPI frequency of the VS1053 upon start up is 1.75MHz.
From the datasheet: “Max SDI clock freq = CLKI/7 and CLKI = 12.288″, hence the max
clock = 1.75MHz. Page 10, input clock is 12.288MHz. Internal clock multiplier
is 1x after power up. Therefore, max SPI speed is 1.75MHz. We will use 1MHz to be safe. Once we are up
and running, we increase the clock multiplier to 3x and increase SPI speed to 4MHz.
Be cautious when using Serial.printlns for debugging. I got a lot of random behavior when trying to
do prints at different times.
Be cautious of using 57600bps for debugging. Arduino v22 seems to have an un-resolved bug.
*/
#include <SPI.h>
#define MP3_XCS 6 //Control Chip Select Pin (for accessing SPI Control/Status registers)
#define MP3_XDCS 7 //Data Chip Select / BSYNC Pin
#define MP3_DREQ 2 //Data Request Pin: Player asks for more data
//VS10xx SCI Registers
#define SCI_MODE 0x00
#define SCI_STATUS 0x01
#define SCI_BASS 0x02
#define SCI_CLOCKF 0x03
#define SCI_DECODE_TIME 0x04
#define SCI_AUDATA 0x05
#define SCI_WRAM 0x06
#define SCI_WRAMADDR 0x07
#define SCI_HDAT0 0x08
#define SCI_HDAT1 0x09
#define SCI_AIADDR 0x0A
#define SCI_VOL 0x0B
#define SCI_AICTRL0 0x0C
#define SCI_AICTRL1 0x0D
#define SCI_AICTRL2 0x0E
#define SCI_AICTRL3 0x0F
// Write to VS10xx register
// SCI: Data transfers are always 16bit. When a new SCI operation comes in
// DREQ goes low. We then have to wait for DREQ to go high again.
// XCS should be low for the full duration of operation.
void Mp3WriteRegister( unsigned char addressbyte, unsigned char highbyte, unsigned char lowbyte)
{
// Wait for DREQ to go high indicating IC is available
while( ! digitalRead( MP3_DREQ) )
;
// Select control
digitalWrite( MP3_XCS, LOW );
// SCI consists of instruction byte, address byte, and 16-bit data word.
SPI.transfer( MP3_XCS, 0x02 ); //Write instruction
SPI.transfer( MP3_XCS, addressbyte );
SPI.transfer( MP3_XCS, highbyte );
SPI.transfer( MP3_XCS, lowbyte );
// Wait for DREQ to go high indicating command is complete
while( ! digitalRead( MP3_DREQ ))
;
// Deselect Control
digitalWrite( MP3_XCS, HIGH );
}
// Read the 16-bit value of a VS10xx register
unsigned int Mp3ReadRegister( unsigned char addressbyte )
{
// Wait for DREQ to go high indicating IC is available
while( ! digitalRead( MP3_DREQ ))
;
//Select control
digitalWrite( MP3_XCS, LOW );
// SCI consists of instruction byte, address byte, and 16-bit data word.
SPI.transfer( MP3_XCS, 0x03 ); //Read instruction
SPI.transfer( MP3_XCS, addressbyte );
// Read the first byte
char response1 = SPI.transfer( MP3_XCS, 0xFF );
// Wait for DREQ to go high indicating command is complete
while( ! digitalRead( MP3_DREQ ))
;
// Read the second byte
char response2 = SPI.transfer( MP3_XCS, 0xFF );
// Wait for DREQ to go high indicating command is complete
while( ! digitalRead( MP3_DREQ ))
;
// Deselect Control
digitalWrite( MP3_XCS, HIGH );
int resultvalue = response1 << 8;
resultvalue |= response2;
return resultvalue;
}
// Set VS10xx Volume Register
void Mp3SetVolume( unsigned char leftchannel, unsigned char rightchannel )
{
Mp3WriteRegister( SCI_VOL, leftchannel, rightchannel );
}
unsigned char HelloMP3[] =
{
0xFF,0xF2,0x40,0xC0,0x19,0xB7,0x00,0x14,0x02,0xE6,0x5C, /* ..@…….\ */
0x01,0x92,0x68,0x01,0xF1,0x5E,0x03,0x08,0xF0,0x24,0x80, /* ..h..^…$. */
0x05,0x9E,0x20,0xC6,0xFC,0x12,0x32,0x5C,0xBF,0xF9,0xB9, /* .. …2\… */
0x20,0x4A,0x7F,0x85,0xEC,0x4C,0xCD,0xC7,0x27,0xFE,0x5C, /* J…L..’.\ */
0x34,0x25,0xCB,0xE6,0xFF,0xFF,0x8E,0x42,0xE1,0xA0,0x5E, /* 4%…..B..^ */
0xCA,0x6E,0x30,0x9F,0xFF,0xF8,0xC2,0x12,0x84,0xB9,0x7C, /* .n0…….| */
0xDC,0x61,0x09,0x4A,0x7F,0xFF,0xFF,0xF9,0x7D,0x32,0x51, /* .a.J….}2Q */
0x09,0x7C,0xE1,0xA5,0x6E,0xB4,0xFF,0xFF,0xFF,0xFF,0xD3, /* .|..n…… */
0x34,0x41,0x91,0xF0,0x11,0x8F,0x00,0x0F,0x81,0x9C,0x10, /* 4A……… */
0xEE,0x59,0xCE,0x56,0x67,0xFF,0xF2,0x42,0xC0,0xEC,0x53, /* .Y.Vg..B..S */
0x09,0x15,0xF9,0xAA,0xA8,0x0D,0xD9,0x40,0x00,0xCA,0x34, /* …….@..4 */
0x53,0xD9,0x18,0xAB,0x7D,0xF7,0x89,0x3F,0x11,0x38,0x94, /* S…}..?.8. */
0x82,0x59,0x93,0x20,0x6A,0x0C,0xEE,0x8E,0x58,0xFA,0x38, /* .Y. j…X.8 */
0x82,0xCA,0xF0,0x58,0xBB,0xDA,0x0C,0x50,0x56,0x1F,0xBB, /* …X…PV.. */
0x18,0x5D,0x8B,0x9F,0xDA,0x71,0x4F,0xFF,0xBD,0xFE,0xEF, /* .]…qO…. */
0x69,0x36,0x86,0x3C,0x50,0xBB,0x0A,0x07,0x89,0x54,0xF0, /* i6.<P….T. */
0x88,0x9F,0x90,0x95,0x30,0x94,0x2E,0x7E,0xF0,0x64,0x96, /* ….0..~.d. */
0x79,0x08,0x3E,0x20,0x97,0x28,0x34,0x9C,0x09,0x7F,0xD2, /* y.> .(4…. */
0xC0,0x01,0x75,0xF8,0x05,0x6B,0x5F,0x41,0x17,0x0B,0xE7, /* ..u..k_A… */
0xFF,0xF2,0x40,0xC0,0x61,0xE5,0x0B,0x16,0x09,0xC6,0xC5, /* ..@.a…… */
0x74,0x7B,0xCC,0x94,0x7A,0xF7,0x80,0x76,0xB2,0xD2,0xF8, /* t{..z..v… */
0x39,0x06,0x38,0xFD,0x71,0xC5,0xDE,0x3A,0x38,0xBF,0xD5, /* 9.8.q..:8.. */
0xF7,0x12,0x37,0xCB,0xF5,0x63,0x0C,0x9B,0xCE,0x77,0x25, /* ..7..c…w% */
0xED,0xFB,0x3D,0x6B,0x35,0xF9,0x6D,0xD7,0xF9,0x2C,0xD1, /* ..=k5.m..,. */
0x97,0x15,0x87,0x93,0xA4,0x49,0x4A,0x18,0x16,0x07,0xA1, /* …..IJ…. */
0x60,0xF7,0x52,0x94,0xDB,0x02,0x16,0x70,0xB2,0xD8,0x80, /* `.R….p… */
0x30,0xC2,0x94,0x40,0x81,0x74,0x5A,0x19,0x7A,0x80,0x60, /* 0..@.tZ.z.` */
0x41,0x21,0x46,0x95,0xD5,0xC4,0x40,0xD2,0x01,0xC0,0x01, /* A!F…@…. */
0xDA,0xD9,0xA0,0xB1,0x01,0xFF,0xF2,0x42,0xC0,0x82,0x10, /* …….B… */
0x0B,0x12,0xF9,0x9E,0xC9,0x7E,0x7A,0xC6,0x95,0x55,0x09, /* …..~z..U. */
0x8B,0x19,0x5E,0x8B,0x26,0xCA,0xEB,0x68,0x8A,0x05,0x8F, /* ..^.&..h… */
0x36,0xA5,0xA5,0x03,0xB8,0x9C,0xED,0x24,0x51,0x59,0x90, /* 6……$QY. */
0xF6,0xC5,0x7D,0xB5,0xAD,0xAF,0xF6,0x3B,0x18,0xEF,0x3F, /* ..}….;..? */
0xFF,0xFF,0x4E,0xDE,0x16,0x66,0x0B,0xAA,0x33,0x23,0xDD, /* ..N..f..3#. */
0x9C,0x4E,0x6E,0x55,0x22,0x9D,0xA2,0x40,0xA6,0x36,0x31, /* .NnU”..@.61 */
0x69,0xA5,0xE1,0xD9,0x7F,0xF7,0xC6,0xCC,0x48,0x00,0x0E, /* i…….H.. */
0x90,0x16,0x00,0x0F,0xDE,0x6E,0x80,0x11,0x0C,0x9A,0x4F, /* …..n….O */
0x56,0xDB,0x88,0xD3,0xB2,0x1C,0x00,0xE0,0x2E,0x3E,0xAC, /* V……..>. */
0xFF,0xF2,0x40,0xC0,0x1C,0xE5,0x19,0x13,0x31,0x4E,0xCD, /* ..@…..1N. */
0x9E,0xC3,0x06,0x71,0x03,0x85,0xE5,0xB5,0x6D,0x88,0x50, /* …q….m.P */
0x8E,0x0E,0x17,0x3B,0x19,0xFB,0x4E,0x3B,0x99,0xEF,0x4C, /* …;..N;..L */
0x9E,0xF7,0x7B,0x31,0x7C,0x3C,0x5F,0xFF,0xF4,0xF8,0xE3, /* ..{1|<_…. */
0x92,0x42,0x07,0x8E,0x83,0x8E,0x0F,0x05,0x08,0x91,0xA3, /* .B……… */
0x16,0xE2,0xDF,0xB7,0x62,0x60,0x48,0x31,0x3C,0xFF,0xD4, /* ….b`H1<.. */
0x9E,0x0C,0x68,0x00,0x77,0x54,0xE3,0x1E,0x05,0xC5,0xF8, /* ..h.wT….. */
0xEA,0x8D,0x82,0x9D,0x08,0xA9,0x06,0x8D,0x1E,0x5D,0x7C, /* ………]| */
0x7F,0x08,0xC0,0x50,0x45,0x42,0xD0,0x36,0xF8,0xB2,0x4D, /* …PEB.6..M */
0x53,0x0C,0x80,0x3B,0x4D,0xFF,0xF2,0x42,0xC0,0x2F,0x3C, /* S..;M..B./< */
0x25,0x19,0x29,0xFE,0xBC,0x2E,0xC4,0xD0,0x99,0x4C,0x48, /* %.)……LH */
0xB0,0x9C,0x49,0xD2,0x1A,0x2D,0x02,0xC2,0x79,0x69,0x16, /* ..I..-..yi. */
0x92,0xA8,0xC5,0xAB,0x45,0x5A,0x68,0xE8,0x75,0x57,0xCD, /* ….EZh.uW. */
0xF1,0xB9,0xAA,0x13,0x88,0xE4,0x87,0x42,0x15,0xB3,0x58, /* …….B..X */
0xF5,0xA3,0x46,0xB1,0xCF,0xD3,0x59,0x7E,0xBA,0xB5,0xA7, /* ..F…Y~… */
0x6B,0x0B,0x17,0x57,0x6B,0x5C,0x4A,0xCD,0x53,0x76,0x2A, /* k..Wk\J.Sv* */
0x1D,0x28,0xC5,0x1C,0x76,0x5C,0xDD,0x0A,0x00,0x4B,0xC0, /* .(..v\…K. */
0x1B,0xCA,0xA8,0xE9,0x81,0x5B,0xA6,0xDC,0xA4,0x59,0x13, /* …..[…Y. */
0xFC,0xBA,0x8F,0x98,0x79,0x44,0x25,0xC9,0x35,0x38,0xCA, /* ….yD%.58. */
0xFF,0xF2,0x40,0xC0,0xB9,0x7D,0x1A,0x13,0x79,0x6A,0xC8, /* ..@..}..yj. */
0x3E,0xC4,0x46,0x94,0x8D,0x3C,0x67,0x85,0xB1,0xA8,0x89, /* >.F..<g…. */
0xC0,0xF2,0xE6,0x2F,0x9D,0x7C,0xC9,0xB4,0xBE,0xCF,0xE1, /* …/.|….. */
0x7D,0xFE,0x1F,0x03,0x00,0x12,0x84,0x72,0x8C,0xE7,0xD8, /* }……r… */
0x5E,0xC9,0xA9,0x01,0xBA,0x9B,0xC4,0x10,0x5C,0x70,0x2E, /* ^…….\p. */
0x6C,0x48,0xE7,0x8C,0x15,0x0B,0x06,0x01,0xE5,0xFF,0xFF, /* lH……… */
0xD4,0x0D,0x00,0x0F,0xCE,0x58,0x95,0x61,0xA8,0x9E,0x7B, /* …..X.a..{ */
0x19,0x98,0xB0,0xF0,0xC6,0x72,0x82,0xD5,0x27,0x06,0x47, /* …..r..’.G */
0x41,0x22,0x0F,0x65,0x93,0xC9,0x8A,0x09,0x19,0x48,0x1B, /* A”.e…..H. */
0xBD,0xD6,0x64,0x1A,0xAC,0xFF,0xF2,0x42,0xC0,0xF1,0x11, /* ..d….B… */
0x25,0x14,0x22,0x06,0xBC,0x0E,0xD4,0x4E,0x99,0x90,0xA8, /* %.”….N… */
0xD8,0xB7,0xAD,0x5D,0x3E,0xAF,0x6E,0xBE,0x66,0x83,0xA4, /* …]>.n.f.. */
0xE3,0xC2,0xE0,0x29,0x43,0x87,0x5F,0x4F,0x27,0x9C,0x2C, /* …)C._O’., */
0xD0,0x91,0xF3,0x87,0x9B,0x54,0xED,0xD1,0xB4,0xF3,0x39, /* …..T….9 */
0x87,0x22,0x06,0x86,0x0D,0x71,0xE4,0x6F,0x2A,0x08,0x04, /* .”…q.o*.. */
0xC0,0x03,0x2A,0xB1,0xE2,0x05,0x4D,0x64,0xA1,0x9C,0xA6, /* ..*…Md… */
0x0D,0x41,0xA6,0xF2,0x7A,0xC1,0x30,0xC3,0x38,0x26,0x09, /* .A..z.0.8&. */
0x50,0x08,0xC4,0xF6,0x30,0x0C,0xA6,0xA9,0x17,0x00,0x13, /* P…0…… */
0x0C,0xDC,0xC4,0x2F,0x28,0xEB,0x3F,0xCD,0x7A,0x3D,0x2F, /* …/(.?.z=/ */
0xFF,0xF2,0x40,0xC0,0x18,0x6F,0x2E,0x13,0xA1,0xF2,0xBC, /* ..@..o….. */
0x36,0xCB,0x4E,0x99,0x6E,0xFC,0xEE,0xC5,0xF0,0xA0,0xB7, /* 6.N.n…… */
0x92,0xD4,0xEE,0x79,0x7C,0x50,0x5D,0xE5,0x04,0x94,0xA9, /* …y|P]…. */
0x76,0xCF,0x6C,0x70,0xDD,0x0D,0xD4,0xEE,0xED,0x98,0xE8, /* v.lp……. */
0xC8,0x35,0x36,0x7A,0x0C,0x05,0x80,0x03,0xBC,0xBE,0x91, /* .56z……. */
0x00,0x7C,0xAE,0x65,0xB8,0x91,0xA3,0x33,0xBA,0x68,0x60, /* .|.e…3.h` */
0xD4,0x1A,0x66,0xF8,0x43,0xA0,0x20,0x89,0xE7,0x80,0xD8, /* ..f.C. …. */
0x1E,0x4F,0xA0,0x04,0x60,0x06,0x0A,0xA4,0x91,0x24,0xFA, /* .O..`….$. */
0x9F,0x57,0x53,0xF4,0x7A,0xDB,0x5F,0x56,0xE3,0x6E,0x0B, /* .WS.z._V.n. */
0x8B,0x3A,0x1C,0xF9,0x5E,0xFF,0xF2,0x42,0xC0,0xB1,0x00, /* .:..^..B… */
0x38,0x14,0x09,0xEE,0xB4,0x36,0xD3,0x4E,0x99,0xA4,0x78, /* 8….6.N..x */
0x94,0x73,0xC4,0x66,0x30,0xF5,0xEA,0xDB,0xBA,0x67,0x67, /* .s.f0….gg */
0x95,0x6B,0xAB,0x68,0x5D,0x08,0xA1,0x39,0x56,0xAB,0x1E, /* .k.h]..9V.. */
0xD5,0x03,0xE8,0x01,0x70,0x00,0xB3,0x93,0x33,0x19,0x8C, /* ….p…3.. */
0x61,0x8F,0xBB,0x5D,0x24,0x12,0x63,0xD3,0x4B,0x5D,0x91, /* a..]$.c.K]. */
0x08,0x43,0x22,0x56,0x1A,0xC5,0x10,0x21,0x84,0xA8,0xEA, /* .C”V…!… */
0x80,0xBF,0x16,0x8E,0x3D,0x46,0x18,0x9C,0x6E,0x9A,0x91, /* ….=F..n.. */
0xE6,0xC9,0x6F,0xD2,0x7D,0x27,0xD7,0xE9,0x6B,0xFF,0x0A, /* ..o.}’..k.. */
0x03,0x43,0x89,0xD5,0xBF,0x52,0x97,0x0A,0x25,0x95,0x0D, /* .C…R..%.. */
0xFF,0xF2,0x40,0xC0,0xF5,0xC3,0x41,0x13,0x81,0xEE,0xA8, /* ..@…A…. */
0x5E,0xD3,0x44,0x98,0xFC,0xCF,0x97,0xF9,0x58,0xB5,0x33, /* ^.D…..X.3 */
0xB1,0x85,0x47,0x86,0xD7,0x98,0x01,0x3B,0xA3,0x4F,0x7E, /* ..G….;.O~ */
0x04,0xA6,0xC3,0x39,0x21,0x70,0x27,0x62,0xB5,0x18,0x10, /* …9!p’b… */
0x09,0x99,0x00,0x8B,0x7E,0xF2,0xBF,0x52,0x18,0x26,0x30, /* ….~..R.&0 */
0x1C,0xB0,0x01,0x49,0x30,0xE0,0xC3,0x11,0x46,0x05,0xCC, /* …I0…F.. */
0x49,0x14,0x28,0xB2,0xED,0x4B,0x57,0x5A,0x2F,0xB7,0x46, /* I.(..KWZ/.F */
0x63,0x34,0xD2,0xDA,0x9F,0x56,0x32,0xB7,0xA2,0x25,0xFF, /* c4…V2..%. */
0x94,0x28,0x33,0x7F,0x3B,0xC4,0x50,0xEC,0xB1,0xE2,0x26, /* .(3.;.P…& */
0xA1,0xB7,0x07,0x7F,0xFB,0xFF,0xF2,0x42,0xC0,0x67,0x6A, /* …….B.gj */
0x4C,0x13,0xF9,0x6A,0x90,0x7E,0xDB,0x44,0x94,0x3F,0xFF, /* L..j.~.D.?. */
0x14,0xD6,0x2A,0xFF,0xFF,0xC1,0x34,0x8C,0x48,0x22,0x00, /* ..*…4.H”. */
0x06,0x8F,0x21,0xFD,0x64,0x60,0x04,0x92,0x42,0xEA,0x74, /* ..!.d`..B.t */
0x32,0x37,0xAA,0x5A,0x9F,0x67,0x01,0x8B,0x3F,0x37,0x31, /* 27.Z.g..?71 */
0xDD,0x06,0x3C,0x01,0x34,0x30,0xE0,0x5C,0x78,0x78,0xCB, /* ..<.40.\xx. */
0xD6,0xF1,0x31,0x8A,0x69,0x61,0x93,0x92,0x42,0xCE,0x4B, /* ..1.ia..B.K */
0xC5,0x02,0x4E,0x73,0xC6,0x24,0x30,0xCD,0x08,0x66,0xC6, /* ..Ns.$0..f. */
0x35,0xAB,0xA2,0x3D,0x2F,0xB3,0xBD,0x34,0x87,0x13,0xEE, /* 5..=/..4… */
0x71,0x45,0x68,0xFA,0xEA,0x05,0x84,0x41,0x36,0x4C,0x9A, /* qEh….A6L. */
0xFF,0xF2,0x40,0xC0,0xC9,0x92,0x56,0x13,0xD0,0x6E,0x70, /* ..@…V..np */
0x54,0xD3,0xCC,0x28,0x06,0xD7,0x0E,0xA4,0x1D,0x9C,0x9D, /* T..(……. */
0xD9,0xA9,0x88,0x7B,0xB5,0xA3,0x56,0xB7,0x4B,0x4B,0x5A, /* …{..V.KKZ */
0x9B,0x2C,0xA9,0xAD,0x6F,0x99,0x6C,0xC0,0x4C,0x14,0x14, /* .,..o.l.L.. */
0xEF,0xB4,0x20,0x91,0x5F,0xBC,0x81,0x41,0x41,0x5D,0xD4, /* .. ._..AA]. */
0x20,0xBD,0x05,0x1A,0x6F,0xE2,0x68,0x56,0x41,0x41,0x57, /* …o.hVAAW */
0xF9,0xBF,0x89,0x82,0x8E,0xC7,0x8F,0x0A,0x0A,0x09,0x37, /* ……….7 */
0xF1,0x05,0x0A,0x0A,0x0A,0x0A,0x09,0x05,0x37,0xFF,0x10, /* ……..7.. */
0x50,0x50,0x53,0x65,0xFF,0xFF,0xFD,0x75,0xDF,0xFF,0xFF, /* PPSe…u… */
0x68,0x4F,0xFF,0x84,0x70,0xFF,0xF2,0x42,0xC0,0x27,0x50, /* hO..p..B.’P */
0x5F,0x17,0xE8,0x82,0x3C,0x11,0x58,0x18,0x01,0x55,0x48, /* _…<.X..UH */
0xBC,0x52,0xFC,0x4A,0x4C,0x3C,0xD5,0xF6,0x11,0x2D,0xBF, /* .R.JL<…-. */
0xEA,0x03,0x5C,0x57,0x29,0xBF,0xC3,0x75,0x1C,0xE6,0xDD, /* ..\W)..u… */
0xBF,0xED,0xEF,0xD0,0x98,0x77,0x71,0x95,0x73,0xFF,0xED, /* …..wq.s.. */
0x54,0xBE,0xD5,0xEE,0xAE,0xC2,0xD5,0x0B,0xFF,0xF1,0x97, /* T………. */
0x8A,0xE4,0x42,0x09,0x99,0xB1,0xEA,0x94,0xDC,0x78,0xB5, /* ..B……x. */
0x34,0x0F,0xF1,0x8F,0xFC,0x15,0xF6,0xFA,0xB1,0x47,0xA9, /* 4……..G. */
0x6C,0x67,0x43,0x8B,0xF2,0x76,0x22,0xED,0xDA,0x85,0xBA, /* lgC..v”…. */
0x2F,0xC7,0xF9,0xCF,0xFC,0xDB,0x46,0x2E,0x50,0x0A,0x84, /* /…..F.P.. */
0xFF,0xF2,0x40,0xC0,0xC6,0x4A,0x59,0x28,0x2B,0x19,0xE0, /* ..@..JY(+.. */
0x01,0x89,0x78,0x00,0x52,0x85,0x3C,0x8E,0x54,0x9A,0x48, /* ..x.R.<.T.H */
0x5A,0x72,0x32,0x94,0xBF,0x43,0x4F,0x24,0x53,0x4B,0xEC, /* Zr2..CO$SK. */
0x4B,0x99,0x0E,0x66,0x1F,0xFF,0xCE,0x7F,0xFF,0x3F,0x10, /* K..f…..?. */
0xAE,0x82,0x62,0x71,0x34,0x18,0x59,0x9B,0x51,0xC7,0x59, /* ..bq4.Y.Q.Y */
0xCE,0xEE,0xA5,0xFE,0x02,0xBB,0x30,0x91,0x49,0xD5,0x4B, /* ……0.I.K */
0xF3,0xDC,0x9A,0xA9,0x57,0x8E,0x72,0x10,0xC0,0x5D,0x60, /* ….W.r..]` */
0x67,0xFC,0x7D,0xD6,0xBA,0xDD,0xB3,0x8B,0x5A,0x0A,0x4C, /* g.}…..Z.L */
0x41,0x4D,0x45,0x33,0x2E,0x39,0x33,0xAA,0xAA,0xAA,0xAA, /* AME3.93…. */
0xAA,0xAA,0xAA,0xAA,0xAA,0x54,0x41,0x47,0x48,0x65,0x6C, /* …..TAGHel */
0x6C,0x6F,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20, /* lo */
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20, /* */
0x20,0x20,0x20,0x20,0x20,0x50,0x61,0x6E,0x75,0x2D,0x4B, /* Panu-K */
0x72,0x69,0x73,0x74,0x69,0x61,0x6E,0x20,0x50,0x6F,0x69, /* ristian Poi */
0x6B,0x73,0x61,0x6C,0x6F,0x20,0x20,0x20,0x20,0x20,0x20, /* ksalo */
0x20,0x20,0x56,0x53,0x44,0x53,0x50,0x20,0x54,0x65,0x73, /* VSDSP Tes */
0x74,0x69,0x6E,0x67,0x20,0x20,0x20,0x20,0x20,0x20,0x20, /* ting */
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20, /* */
0x20,0x20,0x20,0x4D,0x50,0x33,0x20,0x48,0x65,0x6C,0x6C, /* MP3 Hell */
0x6F,0x2C,0x20,0x57,0x6F,0x72,0x6C,0x64,0x21,0x20,0x20, /* o, World! */
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20, /* */
0x00, /* . */
};
void setup()
{
//
pinMode( MP3_DREQ, INPUT ); // pin 2
pinMode( MP3_XCS, OUTPUT ); // pin 6 : Control Select of VS1053 IC
pinMode( MP3_XDCS, OUTPUT ); // pin 7 : Data Chip Select of VS1053 IC
digitalWrite( MP3_XDCS, HIGH ); // Deselect Data
// Control Select of SD card high
pinMode( 9, OUTPUT );
digitalWrite( 9, HIGH );
// Control Select of Ethernet high
pinMode( 10, OUTPUT );
digitalWrite( 10, HIGH );
// Control Select of SD card of Ethernet shield high
pinMode( 4, OUTPUT );
digitalWrite( 4, HIGH );
// Use serial for debugging
Serial.begin( 115200 );
Serial.println( “MP3 Shield Example” );
//Setup SPI for VS1053
SPI.begin( MP3_XCS );
SPI.setBitOrder( MP3_XCS, MSBFIRST );
SPI.setDataMode( MP3_XCS, SPI_MODE0 );
// From page 12 of datasheet, max SCI reads are CLKI/7. Input clock is 12.288MHz.
// Internal clock multiplier is 1.0x after power up.
// Therefore, max SPI speed is 1.75MHz. We will use 1MHz to be safe.
SPI.setClockDivider( MP3_XCS, 84 ); // Set SPI bus speed to 1MHz (84MHz / 84 = 1MHz for Due)
//SPI.setClockDivider( SPI_CLOCK_DIV16 ); // Set SPI bus speed to 1MHz (16MHz / 16 = 1MHz)
SPI.transfer( MP3_XCS, 0xFF ); //Throw a dummy byte at the bus
//Initialize VS1053 chip
digitalWrite( MP3_XCS, HIGH ); //Deselect Control
digitalWrite( MP3_XDCS, HIGH ); //Deselect Data
Mp3SetVolume( 20, 20 ); //Set initial volume (20 = -10dB)
// Let’s check the status of the VS1053
int MP3Mode = Mp3ReadRegister( SCI_MODE );
int MP3Status = Mp3ReadRegister( SCI_STATUS );
int MP3Clock = Mp3ReadRegister( SCI_CLOCKF );
Serial.print( “SCI_Mode (0x4800) = 0x” );
Serial.println( MP3Mode, HEX );
//Serial.print( “SCI_Status (0x48) = 0x” );
//Serial.println( MP3Status, HEX );
int vsVersion = ( MP3Status >> 4 ) & 0x000F; //Mask out only the four version bits
Serial.print( “VS Version (VS1053 is 4) = ” );
Serial.println( vsVersion, DEC ); //The 1053B should respond with 4. VS1001 = 0, VS1011 = 1, VS1002 = 2, VS1003 = 3
//Serial.print(“SCI_ClockF = 0x”);
//Serial.println(MP3Clock, HEX);
// Now that we have the VS1053 up and running, increase the VS1053 internal clock multiplier and up our SPI rate
Mp3WriteRegister( SCI_CLOCKF, 0x60, 0x00 ); //Set multiplier to 3.0x
//From page 12 of datasheet, max SCI reads are CLKI/7. Input clock is 12.288MHz.
//Internal clock multiplier is now 3x.
//Therefore, max SPI speed is 5MHz. 4MHz will be safe.
SPI.setClockDivider( MP3_XCS, 21 ); //Set SPI bus speed to 4MHz (8416MHz / 21 = 4MHz for Due)
//SPI.setClockDivider( SPI_CLOCK_DIV4 ); //Set SPI bus speed to 4MHz (16MHz / 4 = 4MHz)
MP3Clock = Mp3ReadRegister( SCI_CLOCKF );
Serial.print( “SCI_ClockF = 0x” );
Serial.println( MP3Clock, HEX );
}
#define MP3_BUF_LEN 1024
//unsigned char mp3Buf[ 2 * MP3_BUF_LEN ];
unsigned char mp3Buf[ 2048 ];
volatile int f = 0;
volatile unsigned char *p;
unsigned char *p0, *p1, *p2, *p3, *s, *s1;
int b = 0;
int n = 0;
void iniHello()
{
s = HelloMP3;
s1 = s + sizeof( HelloMP3 );
p0 = mp3Buf;
p1 = p0 + MP3_BUF_LEN;
p2 = p1 + MP3_BUF_LEN;
p3 = p2 + 1;
p = p0;
b = 0;
transfertBuf();
transfertBuf();
attachInterrupt( MP3_DREQ, transfertMp3, HIGH );
}
void finHello()
{
detachInterrupt( MP3_DREQ );
digitalWrite( MP3_XDCS, HIGH ); // Deselect Data
// Wait for DREQ to go high indicating transfer is complete
while( ! digitalRead( MP3_DREQ ))
;
}
void transfertMp3()
{
digitalWrite( MP3_XDCS, LOW ); // Select Data
SPI.transfer( MP3_XCS, *p ); // Send SPI byte
p ++;
if( p >= p3 )
f = 2;
else if( p == p1 )
f = 1;
else if( p == p2 )
{
f = 1;
p = p0;
}
}
void transfertBuf()
{
Serial.print( b );
unsigned char *p4 = b == 0 ? p0 : p1 ;
unsigned long ln = s1 – s;
if( ln < MP3_BUF_LEN )
p3 = p4 + ln;
else
ln = MP3_BUF_LEN;
memcpy( p4, s, ln );
// memcpy( ( b == 0 ? p0 : p1 ), s, ( ln < MP3_BUF_LEN ? ln : MP3_BUF_LEN ) );
s += ln;
b = 1 – b;
f = 0;
}
void loop()
{
if( n == 0 )
{
// read any existing Serial data
while( Serial.read() >= 0 ) ;
Serial.print( “\nType any character to listen Hello\n” );
while( Serial.available() == 0 ) ;
n = 4;
iniHello();
}
if( f == 2 )
{
finHello();
n = 0;
Serial.print( “Ok\n” );
}
else if( f == 1 )
transfertBuf();
/*
if( p >= p1 )
{
finHello();
delay( 500 );
Serial.print( n );
n — ;
if( n > 0 )
iniHello();
}
*/
}
