Team X / Mbed 2 deprecated Mbed_part

music player, led, motor

Dependencies:   LSM9DS1_Library_cal RPCInterface final mbed

Fork of final_mbed by Team X

VS1002.cpp@2:55495227fcca, 2017-05-01 (annotated)

Committer:
mikebenq
Date:
Mon May 01 11:05:37 2017 +0000
Revision:
2:55495227fcca
Parent:
1:f54bee9d59de 
Final_mbed

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mikebenq 1:f54bee9d59de 1 #include "VS1002.h"
mikebenq 1:f54bee9d59de 2 #include "mbed.h"
mikebenq 1:f54bee9d59de 3
mikebenq 1:f54bee9d59de 4 Serial pc(USBTX, USBRX);
mikebenq 1:f54bee9d59de 5 //TextLCD lcd(p30, p29, p17, p18, p19, p20);
mikebenq 1:f54bee9d59de 6
mikebenq 1:f54bee9d59de 7 /* ==================================================================
mikebenq 1:f54bee9d59de 8 * Constructor
mikebenq 1:f54bee9d59de 9 * =================================================================*/
mikebenq 1:f54bee9d59de 10
mikebenq 1:f54bee9d59de 11 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)
mikebenq 1:f54bee9d59de 12 : _sd(mmosi, mmiso, ssck, ccs, name), _spi(mosi, miso, sck), _CS(cs), _RST(rst), _DREQ(dreq), _DCS(dcs), _VOL(vol) {
mikebenq 1:f54bee9d59de 13
mikebenq 1:f54bee9d59de 14 }
mikebenq 1:f54bee9d59de 15
mikebenq 1:f54bee9d59de 16 /*===================================================================
mikebenq 1:f54bee9d59de 17 * Functions
mikebenq 1:f54bee9d59de 18 *==================================================================*/
mikebenq 1:f54bee9d59de 19
mikebenq 1:f54bee9d59de 20 void VS1002::cs_low(void)
mikebenq 1:f54bee9d59de 21 {
mikebenq 1:f54bee9d59de 22 _CS = 0;
mikebenq 1:f54bee9d59de 23 }
mikebenq 1:f54bee9d59de 24 void VS1002::cs_high(void)
mikebenq 1:f54bee9d59de 25 {
mikebenq 1:f54bee9d59de 26 _CS = 1;
mikebenq 1:f54bee9d59de 27 }
mikebenq 1:f54bee9d59de 28 void VS1002::dcs_low(void)
mikebenq 1:f54bee9d59de 29 {
mikebenq 1:f54bee9d59de 30 _DCS = 0;
mikebenq 1:f54bee9d59de 31 }
mikebenq 1:f54bee9d59de 32 void VS1002::dcs_high(void)
mikebenq 1:f54bee9d59de 33 {
mikebenq 1:f54bee9d59de 34 _DCS = 1;
mikebenq 1:f54bee9d59de 35 }
mikebenq 1:f54bee9d59de 36 void VS1002::sci_en(void) //SCI enable
mikebenq 1:f54bee9d59de 37 {
mikebenq 1:f54bee9d59de 38 cs_high();
mikebenq 1:f54bee9d59de 39 dcs_high();
mikebenq 1:f54bee9d59de 40 cs_low();
mikebenq 1:f54bee9d59de 41 }
mikebenq 1:f54bee9d59de 42 void VS1002::sci_dis(void) //SCI disable
mikebenq 1:f54bee9d59de 43 {
mikebenq 1:f54bee9d59de 44 cs_high();
mikebenq 1:f54bee9d59de 45 }
mikebenq 1:f54bee9d59de 46 void VS1002::sdi_en(void) //SDI enable
mikebenq 1:f54bee9d59de 47 {
mikebenq 1:f54bee9d59de 48 dcs_high();
mikebenq 1:f54bee9d59de 49 cs_high();
mikebenq 1:f54bee9d59de 50 dcs_low();
mikebenq 1:f54bee9d59de 51 }
mikebenq 1:f54bee9d59de 52 void VS1002::sdi_dis(void) //SDI disable
mikebenq 1:f54bee9d59de 53 {
mikebenq 1:f54bee9d59de 54 dcs_high();
mikebenq 1:f54bee9d59de 55 }
mikebenq 1:f54bee9d59de 56 void VS1002::reset(void) //hardware reset
mikebenq 1:f54bee9d59de 57 {
mikebenq 1:f54bee9d59de 58 wait(0.01);
mikebenq 1:f54bee9d59de 59 _RST = 0;
mikebenq 1:f54bee9d59de 60 wait(0.01);
mikebenq 1:f54bee9d59de 61 _RST = 1;
mikebenq 1:f54bee9d59de 62 wait(0.10);
mikebenq 1:f54bee9d59de 63 }
mikebenq 1:f54bee9d59de 64 void VS1002::power_down(void) //hardware and software reset
mikebenq 1:f54bee9d59de 65 {
mikebenq 1:f54bee9d59de 66 cs_low();
mikebenq 1:f54bee9d59de 67 reset();
mikebenq 1:f54bee9d59de 68 sci_write(0x00, SM_PDOWN);
mikebenq 1:f54bee9d59de 69 wait(0.01);
mikebenq 1:f54bee9d59de 70 reset();
mikebenq 1:f54bee9d59de 71 }
mikebenq 1:f54bee9d59de 72 void VS1002::sci_initialise(void)
mikebenq 1:f54bee9d59de 73 {
mikebenq 1:f54bee9d59de 74 _RST = 1; //no reset
mikebenq 1:f54bee9d59de 75 _spi.format(8,0); //spi 8bit interface, steady state low
mikebenq 1:f54bee9d59de 76 _spi.frequency(1000000); //rising edge data record, freq. 1Mhz
mikebenq 1:f54bee9d59de 77
mikebenq 1:f54bee9d59de 78 cs_low();
mikebenq 1:f54bee9d59de 79 for(int i=0; i<4; i++)
mikebenq 1:f54bee9d59de 80 {
mikebenq 1:f54bee9d59de 81 _spi.write(0xFF); //clock the chip a bit
mikebenq 1:f54bee9d59de 82 }
mikebenq 1:f54bee9d59de 83 cs_high();
mikebenq 1:f54bee9d59de 84 dcs_high();
mikebenq 1:f54bee9d59de 85 wait_us(5);
mikebenq 1:f54bee9d59de 86 }
mikebenq 1:f54bee9d59de 87 void VS1002::sdi_initialise(void)
mikebenq 1:f54bee9d59de 88 {
mikebenq 1:f54bee9d59de 89 _spi.format(8,0);
mikebenq 1:f54bee9d59de 90 _spi.frequency(7000000); //set to 7MHz
mikebenq 1:f54bee9d59de 91
mikebenq 1:f54bee9d59de 92 cs_high();
mikebenq 1:f54bee9d59de 93 dcs_high();
mikebenq 1:f54bee9d59de 94 }
mikebenq 1:f54bee9d59de 95 void VS1002::sci_write(unsigned char address, unsigned short int data)
mikebenq 1:f54bee9d59de 96 {
mikebenq 1:f54bee9d59de 97 sci_en(); //enables SCI/disables SDI
mikebenq 1:f54bee9d59de 98
mikebenq 1:f54bee9d59de 99 while(!_DREQ); //wait unitl data request is high
mikebenq 1:f54bee9d59de 100 _spi.write(0x02); //SCI write
mikebenq 1:f54bee9d59de 101 _spi.write(address); //register address
mikebenq 1:f54bee9d59de 102 _spi.write((data >> 8) & 0xFF); //write out first half of data word
mikebenq 1:f54bee9d59de 103 _spi.write(data & 0xFF); //write out second half of data word
mikebenq 1:f54bee9d59de 104
mikebenq 1:f54bee9d59de 105 sci_dis(); //enables SDI/disables SCI
mikebenq 1:f54bee9d59de 106 wait_us(5);
mikebenq 1:f54bee9d59de 107 }
mikebenq 1:f54bee9d59de 108 void VS1002::sdi_write(unsigned char datum)
mikebenq 1:f54bee9d59de 109 {
mikebenq 1:f54bee9d59de 110 sdi_en();
mikebenq 1:f54bee9d59de 111
mikebenq 1:f54bee9d59de 112 while(!_DREQ);
mikebenq 1:f54bee9d59de 113 _spi.write(datum);
mikebenq 1:f54bee9d59de 114
mikebenq 1:f54bee9d59de 115 sci_dis();
mikebenq 1:f54bee9d59de 116 }
mikebenq 1:f54bee9d59de 117 unsigned short int VS1002::read(unsigned short int address)
mikebenq 1:f54bee9d59de 118 {
mikebenq 1:f54bee9d59de 119 cs_low(); //enables SCI/disables SDI
mikebenq 1:f54bee9d59de 120
mikebenq 1:f54bee9d59de 121 while(!_DREQ); //wait unitl data request is high
mikebenq 1:f54bee9d59de 122 _spi.write(0x03); //SCI write
mikebenq 1:f54bee9d59de 123 _spi.write(address); //register address
mikebenq 1:f54bee9d59de 124 unsigned short int received = _spi.write(0x00); //write out dummy byte
mikebenq 1:f54bee9d59de 125 received <<= 8;
mikebenq 1:f54bee9d59de 126 received += _spi.write(0x00); //write out dummy byte
mikebenq 1:f54bee9d59de 127
mikebenq 1:f54bee9d59de 128 cs_high(); //enables SDI/disables SCI
mikebenq 1:f54bee9d59de 129
mikebenq 1:f54bee9d59de 130 return received; //return received word
mikebenq 1:f54bee9d59de 131 }
mikebenq 1:f54bee9d59de 132 void VS1002::sine_test_activate(unsigned char wave)
mikebenq 1:f54bee9d59de 133 {
mikebenq 1:f54bee9d59de 134 cs_high(); //enables SDI/disables SCI
mikebenq 1:f54bee9d59de 135
mikebenq 1:f54bee9d59de 136 while(!_DREQ); //wait unitl data request is high
mikebenq 1:f54bee9d59de 137 _spi.write(0x53); //SDI write
mikebenq 1:f54bee9d59de 138 _spi.write(0xEF); //SDI write
mikebenq 1:f54bee9d59de 139 _spi.write(0x6E); //SDI write
mikebenq 1:f54bee9d59de 140 _spi.write(wave); //SDI write
mikebenq 1:f54bee9d59de 141 _spi.write(0x00); //filler byte
mikebenq 1:f54bee9d59de 142 _spi.write(0x00); //filler byte
mikebenq 1:f54bee9d59de 143 _spi.write(0x00); //filler byte
mikebenq 1:f54bee9d59de 144 _spi.write(0x00); //filler byte
mikebenq 1:f54bee9d59de 145
mikebenq 1:f54bee9d59de 146 cs_low(); //enables SCI/disables SDI
mikebenq 1:f54bee9d59de 147 }
mikebenq 1:f54bee9d59de 148 void VS1002::sine_test_deactivate(void)
mikebenq 1:f54bee9d59de 149 {
mikebenq 1:f54bee9d59de 150 cs_high();
mikebenq 1:f54bee9d59de 151
mikebenq 1:f54bee9d59de 152 while(!_DREQ);
mikebenq 1:f54bee9d59de 153 _spi.write(0x45); //SDI write
mikebenq 1:f54bee9d59de 154 _spi.write(0x78); //SDI write
mikebenq 1:f54bee9d59de 155 _spi.write(0x69); //SDI write
mikebenq 1:f54bee9d59de 156 _spi.write(0x74); //SDI write
mikebenq 1:f54bee9d59de 157 _spi.write(0x00); //filler byte
mikebenq 1:f54bee9d59de 158 _spi.write(0x00); //filler byte
mikebenq 1:f54bee9d59de 159 _spi.write(0x00); //filler byte
mikebenq 1:f54bee9d59de 160 _spi.write(0x00); //filler byte
mikebenq 1:f54bee9d59de 161 }
mikebenq 1:f54bee9d59de 162
mikebenq 1:f54bee9d59de 163
mikebenq 1:f54bee9d59de 164 void VS1002::volume(signed int left, signed int right)
mikebenq 1:f54bee9d59de 165 {
mikebenq 1:f54bee9d59de 166 while(_DREQ == 0);
mikebenq 1:f54bee9d59de 167
mikebenq 1:f54bee9d59de 168 unsigned short int _left = -left; //convert the decibel values into a format
mikebenq 1:f54bee9d59de 169 unsigned short int _right = -right; //readable by the chip cf. datasheet p.32 subsection 8.6.11
mikebenq 1:f54bee9d59de 170 _left *= 2;
mikebenq 1:f54bee9d59de 171 _right *= 2;
mikebenq 1:f54bee9d59de 172 unsigned short int attenuation = ((256 * _left) + _right);
mikebenq 1:f54bee9d59de 173 cs_low();
mikebenq 1:f54bee9d59de 174 sci_write(0x0B, attenuation); //writeout these values
mikebenq 1:f54bee9d59de 175 cs_high();
mikebenq 1:f54bee9d59de 176 }
mikebenq 1:f54bee9d59de 177
mikebenq 1:f54bee9d59de 178 void VS1002::play_song(int song_number)
mikebenq 1:f54bee9d59de 179 {
mikebenq 1:f54bee9d59de 180 /*====== Song Select ======*/
mikebenq 1:f54bee9d59de 181
mikebenq 1:f54bee9d59de 182 char str[16] = "/sd/music/"; //folder where the songs are located
mikebenq 1:f54bee9d59de 183 sprintf(str+10,"%d",song_number); //appending song number to path of the file
mikebenq 1:f54bee9d59de 184 strcat(str,".mp3"); //appending .mp3 to file name
mikebenq 1:f54bee9d59de 185 FILE *song;
mikebenq 1:f54bee9d59de 186 unsigned char array[512]; //array for reading data from file
mikebenq 1:f54bee9d59de 187 bool play_new=false; // Variable to see if new_song has be assigned or not
mikebenq 1:f54bee9d59de 188
mikebenq 1:f54bee9d59de 189 song = fopen(str, "r"); // Open the music file in read mode
mikebenq 1:f54bee9d59de 190
mikebenq 1:f54bee9d59de 191 /* Printing to LCD the present status */
mikebenq 1:f54bee9d59de 192 //lcd.cls();
mikebenq 1:f54bee9d59de 193 if(pause)
mikebenq 1:f54bee9d59de 194 pc.printf("Paused ");
mikebenq 1:f54bee9d59de 195 if(mute)
mikebenq 1:f54bee9d59de 196 pc.printf("Muted");
mikebenq 1:f54bee9d59de 197 if(!mute && !pause)
mikebenq 1:f54bee9d59de 198 pc.printf("Playing");
mikebenq 1:f54bee9d59de 199
mikebenq 1:f54bee9d59de 200 pc.printf("\n %d %s",new_song_number,song_name[new_song_number-1]);
mikebenq 1:f54bee9d59de 201
mikebenq 1:f54bee9d59de 202 if(!song)
mikebenq 1:f54bee9d59de 203 {
mikebenq 1:f54bee9d59de 204 pc.printf("\n \n Error!!");
mikebenq 1:f54bee9d59de 205 exit(1);
mikebenq 1:f54bee9d59de 206 }
mikebenq 1:f54bee9d59de 207 while(!feof(song))
mikebenq 1:f54bee9d59de 208 {
mikebenq 1:f54bee9d59de 209 if(!pause)
mikebenq 1:f54bee9d59de 210 {
mikebenq 1:f54bee9d59de 211
mikebenq 1:f54bee9d59de 212 fread(&array, 1, 512, song);
mikebenq 1:f54bee9d59de 213 for(int i=0; i<512; i++)
mikebenq 1:f54bee9d59de 214 {
mikebenq 1:f54bee9d59de 215 sdi_write(array[i]);
mikebenq 1:f54bee9d59de 216 }
mikebenq 1:f54bee9d59de 217 volume(volume_set,volume_set);
mikebenq 1:f54bee9d59de 218 }
mikebenq 1:f54bee9d59de 219 if(new_song_number!=song_number)
mikebenq 1:f54bee9d59de 220 {
mikebenq 1:f54bee9d59de 221 play_new=true;
mikebenq 1:f54bee9d59de 222 break;
mikebenq 1:f54bee9d59de 223 }
mikebenq 1:f54bee9d59de 224
mikebenq 1:f54bee9d59de 225
mikebenq 1:f54bee9d59de 226 }
mikebenq 1:f54bee9d59de 227
mikebenq 1:f54bee9d59de 228 fclose(song); //close the file
mikebenq 1:f54bee9d59de 229
mikebenq 1:f54bee9d59de 230 if(!play_new)
mikebenq 1:f54bee9d59de 231 {
mikebenq 1:f54bee9d59de 232 new_song_number+=1; // Goto Next song on completion of one song
mikebenq 1:f54bee9d59de 233 if(new_song_number==7)
mikebenq 1:f54bee9d59de 234 new_song_number=1;
mikebenq 1:f54bee9d59de 235 play_new=false;
mikebenq 1:f54bee9d59de 236 }
mikebenq 1:f54bee9d59de 237 }