Pranav Sawant / Mbed 2 deprecated Lab3_VoiceMeter

12Oct2012MBEDLab3Project

Dependencies:   DebounceIn EthernetNetIf FatFileSystem HTTPClient Motor SDFileSystem TextLCD mbed

VS1002.cpp@1:098c1e0989ee, 2012-10-12 (annotated)

Committer:
psawant9
Date:
Fri Oct 12 16:07:36 2012 +0000
Revision:
1:098c1e0989ee
Parent:
0:814bd1653303 
12Oct2012mbedLab3Project

Who changed what in which revision?

UserRevisionLine numberNew contents of line
psawant9 0:814bd1653303 1 #include "VS1002.h"
psawant9 0:814bd1653303 2 #include "mbed.h"
psawant9 0:814bd1653303 3 #include "TextLCD.h"
psawant9 0:814bd1653303 4 AnalogIn rotary1(p19);
psawant9 0:814bd1653303 5 DigitalIn pause1(p28);
psawant9 0:814bd1653303 6 TextLCD lcd(p10, p18, p24, p23, p22, p21, TextLCD::LCD16x2 ); // rs, e, d0-d3
psawant9 0:814bd1653303 7
psawant9 0:814bd1653303 8
psawant9 0:814bd1653303 9 /* ==================================================================
psawant9 0:814bd1653303 10 * Constructor
psawant9 0:814bd1653303 11 * =================================================================*/
psawant9 0:814bd1653303 12 VS1002::VS1002(
psawant9 0:814bd1653303 13 PinName mmosi, PinName mmiso, PinName ssck, PinName ccs, const char *name,
psawant9 0:814bd1653303 14 PinName mosi, PinName miso, PinName sck, PinName cs, PinName rst,
psawant9 0:814bd1653303 15 PinName dreq, PinName dcs, PinName vol)
psawant9 0:814bd1653303 16 :
psawant9 0:814bd1653303 17 _sd(mmosi, mmiso, ssck, ccs, name),
psawant9 0:814bd1653303 18 _spi(mosi, miso, sck),
psawant9 0:814bd1653303 19 _CS(cs),
psawant9 0:814bd1653303 20 _RST(rst),
psawant9 0:814bd1653303 21 _DREQ(dreq),
psawant9 0:814bd1653303 22 _DCS(dcs),
psawant9 0:814bd1653303 23 _VOL(vol) {
psawant9 0:814bd1653303 24
psawant9 0:814bd1653303 25 }
psawant9 0:814bd1653303 26
psawant9 0:814bd1653303 27 /*===================================================================
psawant9 0:814bd1653303 28 * Functions
psawant9 0:814bd1653303 29 *==================================================================*/
psawant9 0:814bd1653303 30
psawant9 0:814bd1653303 31 void VS1002::cs_low(void)
psawant9 0:814bd1653303 32 {
psawant9 0:814bd1653303 33 _CS = 0;
psawant9 0:814bd1653303 34 }
psawant9 0:814bd1653303 35 void VS1002::cs_high(void)
psawant9 0:814bd1653303 36 {
psawant9 0:814bd1653303 37 _CS = 1;
psawant9 0:814bd1653303 38 }
psawant9 0:814bd1653303 39 void VS1002::dcs_low(void)
psawant9 0:814bd1653303 40 {
psawant9 0:814bd1653303 41 _DCS = 0;
psawant9 0:814bd1653303 42 }
psawant9 0:814bd1653303 43 void VS1002::dcs_high(void)
psawant9 0:814bd1653303 44 {
psawant9 0:814bd1653303 45 _DCS = 1;
psawant9 0:814bd1653303 46 }
psawant9 0:814bd1653303 47 void VS1002::sci_en(void) //SCI enable
psawant9 0:814bd1653303 48 {
psawant9 0:814bd1653303 49 cs_high();
psawant9 0:814bd1653303 50 dcs_high();
psawant9 0:814bd1653303 51 cs_low();
psawant9 0:814bd1653303 52 }
psawant9 0:814bd1653303 53 void VS1002::sci_dis(void) //SCI disable
psawant9 0:814bd1653303 54 {
psawant9 0:814bd1653303 55 cs_high();
psawant9 0:814bd1653303 56 }
psawant9 0:814bd1653303 57 void VS1002::sdi_en(void) //SDI enable
psawant9 0:814bd1653303 58 {
psawant9 0:814bd1653303 59 dcs_high();
psawant9 0:814bd1653303 60 cs_high();
psawant9 0:814bd1653303 61 dcs_low();
psawant9 0:814bd1653303 62 }
psawant9 0:814bd1653303 63 void VS1002::sdi_dis(void) //SDI disable
psawant9 0:814bd1653303 64 {
psawant9 0:814bd1653303 65 dcs_high();
psawant9 0:814bd1653303 66 }
psawant9 0:814bd1653303 67 void VS1002::reset(void) //hardware reset
psawant9 0:814bd1653303 68 {
psawant9 0:814bd1653303 69 wait(0.01);
psawant9 0:814bd1653303 70 _RST = 0;
psawant9 0:814bd1653303 71 wait(0.01);
psawant9 0:814bd1653303 72 _RST = 1;
psawant9 0:814bd1653303 73 wait(0.10);
psawant9 0:814bd1653303 74 }
psawant9 0:814bd1653303 75 void VS1002::power_down(void) //hardware and software reset
psawant9 0:814bd1653303 76 {
psawant9 0:814bd1653303 77 cs_low();
psawant9 0:814bd1653303 78 reset();
psawant9 0:814bd1653303 79 sci_write(0x00, SM_PDOWN);
psawant9 0:814bd1653303 80 wait(0.01);
psawant9 0:814bd1653303 81 reset();
psawant9 0:814bd1653303 82 }
psawant9 0:814bd1653303 83 void VS1002::sci_initialise(void)
psawant9 0:814bd1653303 84 {
psawant9 0:814bd1653303 85 _RST = 1; //no reset
psawant9 0:814bd1653303 86 _spi.format(8,0); //spi 8bit interface, steady state low
psawant9 0:814bd1653303 87 _spi.frequency(1000000); //rising edge data record, freq. 1Mhz
psawant9 0:814bd1653303 88
psawant9 0:814bd1653303 89 cs_low();
psawant9 0:814bd1653303 90 for(int i=0; i<4; i++)
psawant9 0:814bd1653303 91 {
psawant9 0:814bd1653303 92 _spi.write(0xFF); //clock the chip a bit
psawant9 0:814bd1653303 93 }
psawant9 0:814bd1653303 94 cs_high();
psawant9 0:814bd1653303 95 dcs_high();
psawant9 0:814bd1653303 96 wait_us(5);
psawant9 0:814bd1653303 97 }
psawant9 0:814bd1653303 98 void VS1002::sdi_initialise(void)
psawant9 0:814bd1653303 99 {
psawant9 0:814bd1653303 100 _spi.format(8,0);
psawant9 0:814bd1653303 101 _spi.frequency(7000000); //set to 7MHz
psawant9 0:814bd1653303 102
psawant9 0:814bd1653303 103 cs_high();
psawant9 0:814bd1653303 104 dcs_high();
psawant9 0:814bd1653303 105 }
psawant9 0:814bd1653303 106 void VS1002::sci_write(unsigned char address, unsigned short int data)
psawant9 0:814bd1653303 107 {
psawant9 0:814bd1653303 108 sci_en(); //enables SCI/disables SDI
psawant9 0:814bd1653303 109
psawant9 0:814bd1653303 110 while(!_DREQ); //wait unitl data request is high
psawant9 0:814bd1653303 111 _spi.write(0x02); //SCI write
psawant9 0:814bd1653303 112 _spi.write(address); //register address
psawant9 0:814bd1653303 113 _spi.write((data >> 8) & 0xFF); //write out first half of data word
psawant9 0:814bd1653303 114 _spi.write(data & 0xFF); //write out second half of data word
psawant9 0:814bd1653303 115
psawant9 0:814bd1653303 116 sci_dis(); //enables SDI/disables SCI
psawant9 0:814bd1653303 117 wait_us(5);
psawant9 0:814bd1653303 118 }
psawant9 0:814bd1653303 119 void VS1002::sdi_write(unsigned char datum)
psawant9 0:814bd1653303 120 {
psawant9 0:814bd1653303 121 sdi_en();
psawant9 0:814bd1653303 122
psawant9 0:814bd1653303 123 while(!_DREQ);
psawant9 0:814bd1653303 124 _spi.write(datum);
psawant9 0:814bd1653303 125
psawant9 0:814bd1653303 126 sci_dis();
psawant9 0:814bd1653303 127 }
psawant9 0:814bd1653303 128 unsigned short int VS1002::read(unsigned short int address)
psawant9 0:814bd1653303 129 {
psawant9 0:814bd1653303 130 cs_low(); //enables SCI/disables SDI
psawant9 0:814bd1653303 131
psawant9 0:814bd1653303 132 while(!_DREQ); //wait unitl data request is high
psawant9 0:814bd1653303 133 _spi.write(0x03); //SCI write
psawant9 0:814bd1653303 134 _spi.write(address); //register address
psawant9 0:814bd1653303 135 unsigned short int received = _spi.write(0x00); //write out dummy byte
psawant9 0:814bd1653303 136 received <<= 8;
psawant9 0:814bd1653303 137 received += _spi.write(0x00); //write out dummy byte
psawant9 0:814bd1653303 138
psawant9 0:814bd1653303 139 cs_high(); //enables SDI/disables SCI
psawant9 0:814bd1653303 140
psawant9 0:814bd1653303 141 return received; //return received word
psawant9 0:814bd1653303 142 }
psawant9 0:814bd1653303 143 void VS1002::sine_test_activate(unsigned char wave)
psawant9 0:814bd1653303 144 {
psawant9 0:814bd1653303 145 cs_high(); //enables SDI/disables SCI
psawant9 0:814bd1653303 146
psawant9 0:814bd1653303 147 while(!_DREQ); //wait unitl data request is high
psawant9 0:814bd1653303 148 _spi.write(0x53); //SDI write
psawant9 0:814bd1653303 149 _spi.write(0xEF); //SDI write
psawant9 0:814bd1653303 150 _spi.write(0x6E); //SDI write
psawant9 0:814bd1653303 151 _spi.write(wave); //SDI write
psawant9 0:814bd1653303 152 _spi.write(0x00); //filler byte
psawant9 0:814bd1653303 153 _spi.write(0x00); //filler byte
psawant9 0:814bd1653303 154 _spi.write(0x00); //filler byte
psawant9 0:814bd1653303 155 _spi.write(0x00); //filler byte
psawant9 0:814bd1653303 156
psawant9 0:814bd1653303 157 cs_low(); //enables SCI/disables SDI
psawant9 0:814bd1653303 158 }
psawant9 0:814bd1653303 159 void VS1002::sine_test_deactivate(void)
psawant9 0:814bd1653303 160 {
psawant9 0:814bd1653303 161 cs_high();
psawant9 0:814bd1653303 162
psawant9 0:814bd1653303 163 while(!_DREQ);
psawant9 0:814bd1653303 164 _spi.write(0x45); //SDI write
psawant9 0:814bd1653303 165 _spi.write(0x78); //SDI write
psawant9 0:814bd1653303 166 _spi.write(0x69); //SDI write
psawant9 0:814bd1653303 167 _spi.write(0x74); //SDI write
psawant9 0:814bd1653303 168 _spi.write(0x00); //filler byte
psawant9 0:814bd1653303 169 _spi.write(0x00); //filler byte
psawant9 0:814bd1653303 170 _spi.write(0x00); //filler byte
psawant9 0:814bd1653303 171 _spi.write(0x00); //filler byte
psawant9 0:814bd1653303 172 }
psawant9 0:814bd1653303 173 void VS1002::volume(void)
psawant9 0:814bd1653303 174 {
psawant9 0:814bd1653303 175 #ifdef FIXED_VOL
psawant9 0:814bd1653303 176 unsigned char volumize = (0 * 255); // FIXED VOL (not support volume input)
psawant9 0:814bd1653303 177 #else
psawant9 0:814bd1653303 178 unsigned char volumize = (_VOL * 255);
psawant9 0:814bd1653303 179 #endif
psawant9 0:814bd1653303 180 while(!_DREQ);
psawant9 0:814bd1653303 181
psawant9 0:814bd1653303 182 unsigned short int attenuation = ((256 * volumize) + volumize);
psawant9 0:814bd1653303 183 sci_write(0x0B, attenuation);
psawant9 0:814bd1653303 184
psawant9 0:814bd1653303 185 }
psawant9 0:814bd1653303 186
psawant9 0:814bd1653303 187 void VS1002::play_song(int song_number)
psawant9 0:814bd1653303 188 {
psawant9 0:814bd1653303 189 /*====== Song Select ======*/
psawant9 0:814bd1653303 190
psawant9 0:814bd1653303 191 // char list[10000] = {0};
psawant9 0:814bd1653303 192 char list[1000] = {0};
psawant9 0:814bd1653303 193 char str[16] = {"/sd/"};
psawant9 0:814bd1653303 194 unsigned int startplace = 0;
psawant9 0:814bd1653303 195 unsigned int endplace = 0;
psawant9 0:814bd1653303 196 unsigned int play = 0;
psawant9 0:814bd1653303 197 num_of_files = 0;
psawant9 0:814bd1653303 198
psawant9 0:814bd1653303 199 DIR *d;
psawant9 0:814bd1653303 200 struct dirent *p;
psawant9 0:814bd1653303 201 d = opendir("/sd");
psawant9 0:814bd1653303 202 if(d != NULL)
psawant9 0:814bd1653303 203 {
psawant9 0:814bd1653303 204 while((p = readdir(d)) != NULL)
psawant9 0:814bd1653303 205 {
psawant9 0:814bd1653303 206 strcat(list, "*");
psawant9 0:814bd1653303 207 strcat(list, p->d_name);
psawant9 0:814bd1653303 208 num_of_files++;
psawant9 0:814bd1653303 209 }
psawant9 0:814bd1653303 210 }
psawant9 0:814bd1653303 211 else
psawant9 0:814bd1653303 212 {
psawant9 0:814bd1653303 213 perror("Could not open directory!");
psawant9 0:814bd1653303 214 }
psawant9 0:814bd1653303 215 strcat(list, "*"); //terminating *
psawant9 0:814bd1653303 216 if(num_of_files < song_number)
psawant9 0:814bd1653303 217 {
psawant9 0:814bd1653303 218 return;
psawant9 0:814bd1653303 219 }
psawant9 0:814bd1653303 220 while(play != song_number)
psawant9 0:814bd1653303 221 {
psawant9 0:814bd1653303 222 char symbol = list[startplace];
psawant9 0:814bd1653303 223 startplace++;
psawant9 0:814bd1653303 224 if(symbol == 0x2A) //0x2A = "*"
psawant9 0:814bd1653303 225 {
psawant9 0:814bd1653303 226 play++;
psawant9 0:814bd1653303 227 }
psawant9 0:814bd1653303 228 }
psawant9 0:814bd1653303 229 play = 0;
psawant9 0:814bd1653303 230 while(play != (song_number+1))
psawant9 0:814bd1653303 231 {
psawant9 0:814bd1653303 232 char symbol = list[endplace];
psawant9 0:814bd1653303 233 endplace++;
psawant9 0:814bd1653303 234 if(symbol == 0x2A) //0x2A = "*"
psawant9 0:814bd1653303 235 {
psawant9 0:814bd1653303 236 play++;
psawant9 0:814bd1653303 237 }
psawant9 0:814bd1653303 238 }
psawant9 0:814bd1653303 239
psawant9 0:814bd1653303 240 strncat(str, &list[startplace], endplace-startplace);
psawant9 0:814bd1653303 241 str[(endplace-startplace)+3] = '\0';
psawant9 0:814bd1653303 242
psawant9 0:814bd1653303 243
psawant9 0:814bd1653303 244
psawant9 0:814bd1653303 245 /*====== File Transfer ======*/
psawant9 0:814bd1653303 246
psawant9 0:814bd1653303 247 // return if not MP3 file
psawant9 0:814bd1653303 248 if (!((strstr(str,"MP3")!=NULL)||(strstr(str,"mp3")!=NULL))) return;
psawant9 0:814bd1653303 249
psawant9 0:814bd1653303 250
psawant9 0:814bd1653303 251
psawant9 0:814bd1653303 252 FILE *song;
psawant9 0:814bd1653303 253 unsigned char array[512];
psawant9 0:814bd1653303 254
psawant9 0:814bd1653303 255 song = fopen(str, "rb");
psawant9 0:814bd1653303 256
psawant9 0:814bd1653303 257 if(!song)
psawant9 0:814bd1653303 258 {
psawant9 0:814bd1653303 259 exit(1);
psawant9 0:814bd1653303 260 }
psawant9 0:814bd1653303 261
psawant9 0:814bd1653303 262 while((!feof(song))&&!pause1)
psawant9 0:814bd1653303 263 {
psawant9 0:814bd1653303 264 fread(&array, 1, 512, song);
psawant9 0:814bd1653303 265 for(int i=0; i<512; i++)
psawant9 0:814bd1653303 266 {
psawant9 0:814bd1653303 267 #ifndef FS_ONLY
psawant9 0:814bd1653303 268 sdi_write(array[i]);
psawant9 0:814bd1653303 269 // printf(".");
psawant9 0:814bd1653303 270 #endif
psawant9 0:814bd1653303 271 }
psawant9 0:814bd1653303 272 #ifndef FS_ONLY
psawant9 0:814bd1653303 273 volume();
psawant9 0:814bd1653303 274 #endif
psawant9 0:814bd1653303 275 }
psawant9 0:814bd1653303 276 for(int n=0; n<2048; n++)
psawant9 0:814bd1653303 277 {
psawant9 0:814bd1653303 278 #ifndef FS_ONLY
psawant9 0:814bd1653303 279 sdi_write(0x00);
psawant9 0:814bd1653303 280 #endif
psawant9 0:814bd1653303 281 }
psawant9 0:814bd1653303 282 fclose(song); //close the file
psawant9 0:814bd1653303 283 }
psawant9 0:814bd1653303 284
psawant9 0:814bd1653303 285 void VS1002::play_song(string song_name)
psawant9 0:814bd1653303 286 {
psawant9 0:814bd1653303 287
psawant9 0:814bd1653303 288
psawant9 0:814bd1653303 289 FILE *song;
psawant9 0:814bd1653303 290 unsigned char array[512];
psawant9 0:814bd1653303 291
psawant9 0:814bd1653303 292 song = fopen(song_name.c_str(), "rb");
psawant9 0:814bd1653303 293
psawant9 0:814bd1653303 294 if(!song)
psawant9 0:814bd1653303 295 {
psawant9 0:814bd1653303 296 exit(1);
psawant9 0:814bd1653303 297 }
psawant9 0:814bd1653303 298
psawant9 0:814bd1653303 299 while((!feof(song))&&!pause1)
psawant9 0:814bd1653303 300 {
psawant9 0:814bd1653303 301 fread(&array, 1, 512, song);
psawant9 0:814bd1653303 302 for(int i=0; i<512; i++)
psawant9 0:814bd1653303 303 {
psawant9 0:814bd1653303 304 #ifndef FS_ONLY
psawant9 0:814bd1653303 305 sdi_write(array[i]);
psawant9 0:814bd1653303 306 // printf(".");
psawant9 0:814bd1653303 307 #endif
psawant9 0:814bd1653303 308 }
psawant9 0:814bd1653303 309 #ifndef FS_ONLY
psawant9 0:814bd1653303 310 volume();
psawant9 0:814bd1653303 311 #endif
psawant9 0:814bd1653303 312 }
psawant9 0:814bd1653303 313 for(int n=0; n<2048; n++)
psawant9 0:814bd1653303 314 {
psawant9 0:814bd1653303 315 #ifndef FS_ONLY
psawant9 0:814bd1653303 316 sdi_write(0x00);
psawant9 0:814bd1653303 317 #endif
psawant9 0:814bd1653303 318 }
psawant9 0:814bd1653303 319 fclose(song); //close the file
psawant9 0:814bd1653303 320
psawant9 0:814bd1653303 321
psawant9 0:814bd1653303 322 }