AUDIO LIB
Fork of VS1053 by
VS1053.cpp
- Committer:
- Hagrid
- Date:
- 2018-02-21
- Revision:
- 9:e5337a55871a
- Parent:
- 8:5ad25d480d5f
File content as of revision 9:e5337a55871a:
#include "VS1053.h" #include "mbed.h" // patch binary #include "VS1053b_patch.c" // spectrum analyzer binary #include "VS1053b_specana.c" //Serial pc(USBTX, USBRX); /* ================================================================== * Constructor * =================================================================*/ VS1053::VS1053( PinName mosi, PinName miso, PinName sck, PinName cs, PinName rst, PinName dreq, PinName dcs, PinName vol) : _spi(mosi, miso, sck), _CS(cs), _RST(rst), _DREQ(dreq), _DCS(dcs), _VOL(vol) { firstTime=-1; } /*=================================================================== * Functions *==================================================================*/ void VS1053::cs_low(void) { _CS = 0; } void VS1053::cs_high(void) { _CS = 1; } void VS1053::dcs_low(void) { _DCS = 0; } void VS1053::dcs_high(void) { _DCS = 1; } void VS1053::sci_en(void) //SCI enable { cs_high(); dcs_high(); cs_low(); } void VS1053::sci_dis(void) //SCI disable { cs_high(); } void VS1053::sdi_en(void) //SDI enable { dcs_high(); cs_high(); dcs_low(); } void VS1053::sdi_dis(void) //SDI disable { dcs_high(); } void VS1053::reset(void) //hardware reset { // wait(0.01); wait_ms(10); _RST = 0; // wait(0.01); wait_ms(5); _RST = 1; // wait(0.10); wait_ms(10); } void VS1053::power_down(void) //hardware and software reset { cs_low(); reset(); // sci_write(0x00, SM_PDOWN); sci_write(0x00, 0x10); // tempo wait(0.01); reset(); } void VS1053::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 _spi.frequency(2000000); //rising edge data record, freq. 2Mhz 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 VS1053::sdi_initialise(void) { _spi.format(8,0); // _spi.frequency(7000000); //set to 7MHz // _spi.frequency(12000000); //set to 12MHz to make fast transfer _spi.frequency(18000000); //set to 18MHz to make fast transfer //NG does not work// _spi.frequency(24000000); //set to 24MHz to make fast transfer cs_high(); dcs_high(); } void VS1053::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 VS1053::sdi_write(unsigned char datum) { sdi_en(); while(!_DREQ); _spi.write(datum); //? sci_dis(); sdi_dis(); } unsigned short int VS1053::sci_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 VS1053::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 VS1053::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 VS1053::volume(uint8_t left, uint8_t right) { uint16_t v; v = left; v <<= 8; v |= right; while(!_DREQ); sci_write(0x0B, v); } void VS1053::writeStream(unsigned char *array, int size) { for(int i=0; i<size; i++) { sdi_write(array[i]); } volume(50,50); } #if 0 // this function does not work // because of function call overhead void VS1053::putcStream(unsigned char datum) { sdi_write(datum); } #endif unsigned short int VS1053::wram_read(unsigned short int address) { unsigned short int tmp1,tmp2; sci_write(SCI_WRAMADDR,address); tmp1=sci_read(SCI_WRAM); sci_write(SCI_WRAMADDR,address); tmp2=sci_read(SCI_WRAM); if (tmp1==tmp2) return tmp1; sci_write(SCI_WRAMADDR,address); tmp1=sci_read(SCI_WRAM); if (tmp1==tmp2) return tmp1; sci_write(SCI_WRAMADDR,address); tmp1=sci_read(SCI_WRAM); if (tmp1==tmp2) return tmp1; return tmp1; } void VS1053::wram_write(unsigned short int address, unsigned short int data) { sci_write(SCI_WRAMADDR,address); sci_write(SCI_WRAM,data); return; } void VS1053::terminateStream(void) { #if 1 unsigned int endFillByte=wram_read(para_endFillByte); // printf("endFillByte:%04X\r\n",endFillByte); // debug for(int n=0; n<2052; n++) sdi_write(0xFF&endFillByte); sci_write(SCI_MODE,(SM_SDINEW+SM_CANCEL)); for(int n=0; n<2048; n++) sdi_write(0xFF&endFillByte); // don't reset if you don't want to lose the patch // sci_write(SCI_MODE,(SM_SDINEW+SM_RESET)); // set mode reg. // wait_ms(10); #endif } void VS1053::write_plugin(const unsigned short *plugin, unsigned int len) { unsigned int i; unsigned short addr, n, val; for(i=0; i<len;) { addr = plugin[i++]; n = plugin[i++]; if(n & 0x8000U) //RLE run, replicate n samples { n &= 0x7FFF; val = plugin[i++]; while(n--) { sci_write(addr,val); } } else //copy run, copy n sample { while(n--) { val = plugin[i++]; sci_write(addr,val); } } } return; } void VS1053::initialize(void) { _RST = 1; cs_high(); //chip disabled sci_initialise(); //initialise MBED sci_write(SCI_MODE,(SM_SDINEW+SM_RESET)); // set mode reg. wait_ms(10); #if 1 // debug unsigned int chipID_0=wram_read(para_chipID_0); if (firstTime) printf("chipID_0:%04X\r\n",chipID_0); // debug unsigned int chipID_1=wram_read(para_chipID_1); if (firstTime) printf("chipID_1:%04X\r\n",chipID_1); // debug unsigned int struct_version=wram_read(para_version); if (firstTime) printf("structure version:%04X\r\n",struct_version); // debug #endif //get chip version, set clock multiplier and load patch int i = (sci_read(SCI_STATUS)&0xF0)>>4; if(i == 4) { if (firstTime) printf("Installed Chip is: VS1053\r\n"); sci_write(SCI_CLOCKF, (SC_MULT_XTALIx50+SC_ADD_20x)); #ifdef VS_PATCH // loading patch write_plugin(vs1053b_patch, sizeof(vs1053b_patch)/2); if (firstTime) { printf("VS1053b patch loaded.\r\n"); printf("patch size:%d bytes\r\n",sizeof(vs1053b_patch)); } #endif #ifdef VS_SPECANA // loading plugin(spectrum analyzer) write_plugin(vs1053b_specana, sizeof(vs1053b_specana)/2); if (firstTime) printf("VS1053b specana loaded.\r\n"); #endif } else printf("??? Not Supported Chip???\r\n"); sdi_initialise(); firstTime=0; // disable message when init after 1st time }