music player, led, motor
Dependencies: LSM9DS1_Library_cal RPCInterface final mbed
Fork of final_mbed by
VS1002.cpp@1:f54bee9d59de, 2017-04-28 (annotated)
- Committer:
- mikebenq
- Date:
- Fri Apr 28 19:18:46 2017 +0000
- Revision:
- 1:f54bee9d59de
ece4180
Who changed what in which revision?
User | Revision | Line number | New 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 | } |