void main(void) {
manuel = 0;
count = 0;
time = 402;
PLLInit();
PeriphInit();
TimerInit();
//Output Compare
TIM_TIOS_IOS0 = TRUE; // Enable Output compare Port 0
// Configure time for Output Compare 0
TIM_TC0 = TIM_TCNT + 10;
//Enable Timer Interrupt Output Compare 0
TIM_TIE_C0I = TRUE;
// SCI - 2 = Enable recieve interrupt, C = Enable Recieve/Transmit
SCI0CR2 = 0x2C;
PORTA = 0x00;
EnableInterrupts;
for(;;) {
if(sciRxReady) {
count = strcmp(sciRxBuffer, "Sudo!!");
if(!count){
PORTA_PA0 = 1;
TIM_TIE_C0I = FALSE;
}
else{
PORTA_PA0 = 0;
TIM_TIE_C0I = TRUE;
}
(void) memset(&sciRxBuffer[0], 0, sizeof(sciRxBuffer));
sciRxIndex = 0;
sciRxReady = FALSE;
}
if(sciRxOverflow) {
PORTA_PA1 = 1;
SendString(SCI_0, "Buffer overflow!\r\n\0");
SendString(SCI_0, "Erasing buffer!\r\n\0");
(void) memset(&sciRxBuffer[0], 0, sizeof(sciRxBuffer));
sciRxIndex = 0;
sciRxOverflow = FALSE;
}
else{
PORTA_PA1 = 0;
}
if (manuel){
PORTA_PA3 = 1;
}
else{
PORTA_PA3 = 0;
}
} /* loop forever */
} /* please make sure that you never leave main */
//*****************************************************************************
//
//! \brief VS1003 Example.
//!
//! \param None.
//!
//! This function is to give an example of using VS10xx to play audio file.
//! we use VS1003 as the decoder. This chip can decode WAV,MP3,WMA,MIDI audio
//! files and also can record audio. But we don't give out the record functions
//! since it relates much to file manipulation and seldom used. If you need this
//! function, please refer to VS10xx datasheet on VLSI's official page.
//!
//! \return None.
//
//*****************************************************************************
void VS10xxExample(void)
{
unsigned char i,s;
unsigned short usDataCnt, usAudioDecTime = 0;
unsigned int ulFileSize = 0, ulFileCursor = 0;
AudioFileInfo tFLIF;
xSysCtlClockSet(72000000, xSYSCTL_OSC_MAIN | xSYSCTL_XTAL_8MHZ);
xSysCtlDelay( 1000000 );
PeriphInit();
VS10xxSineTest(0x24, 5000000);
VS10xxSineTest(0x85, 5000000);
//
// Open MP3 file
//
s = CH376FileOpen("/01.MP3");
mStopIfError(s);
//
// Set start volume, balance and Bass Treble Enhancement
//
VS10xxSetVolume( 77 );
VS10xxSetBalance( 0 );
VS10xxBassTrebleEnhance(0, 12, 0, 10);
//
// Get file size. (Optional)
//
ulFileSize = CH376GetFileSize( );
//
// Single song loop
//
while( 1 )
{
CH376ByteRead( ucBuff, 512, &usDataCnt );
//
// Send audio stream to VS1003
//
for(i=0;i<16;i++)
{
VS10xxWriteData( ucBuff + i*32 );
}
ulFileCursor += usDataCnt;
if(ulFileCursor == 4096)
{
//
// Get and print file information
//
VS10xxGetAudioInfo(&tFLIF);
printf("\n\rFile type: %d\n\rBit rate: %d kbps\n\rSample rate: %dHz",
tFLIF.eFileType, tFLIF.usBitRate, tFLIF.ucSampleRate);
printf("\n\rMP3 ID: %d\n\rMP3 layer: %d\n\rOther information: %x\n\r",
tFLIF.ucMp3ID, tFLIF.ucMp3Layer, tFLIF.ucOtherInfo);
}
if((ulFileCursor % 10240) == 0)
{
//
// Get and print decode time
//
usAudioDecTime = VS10xxGetDecodeTime();
printf("\rplayed time: %2d:%2ds", usAudioDecTime/60, usAudioDecTime%60);
}
//
// If file come to the end.
//
if( usDataCnt==0 )
{
ulFileCursor=0;
//
// Move file pointer to the beginning of the file
//
CH376ByteLocate( 0 );
//
// Reset decode time
//
VS10xxResetDecodeTime();
}
//
// Key scan
//
switch(JoystickKeyRead())
{
case JOYSTICK_KEY_SELECT:
ucKeySelFlag = !ucKeySelFlag;
if(ucKeySelFlag) xGPIOSPinWrite( LED_PIN, 1 );
else xGPIOSPinWrite( LED_PIN, 0 );
break;
case JOYSTICK_KEY_UP:
if(!ucKeySelFlag)
{
//
// Volume increase
//
if(sucVolLevel<9)
sucVolLevel++;
VS10xxSetVolume(ucVolumeLevel[sucVolLevel]);
}
else
{
//
// Treble increase
//
if(ssTrebleA < 7) ssTrebleA++;
VS10xxBassTrebleEnhance(ssTrebleA, 12, ssBassA, 10);
}
break;
case JOYSTICK_KEY_DOWN:
if(!ucKeySelFlag)
{
//
// Volume decrease
//
if(sucVolLevel!=0)
sucVolLevel--;
VS10xxSetVolume(ucVolumeLevel[sucVolLevel]);
}
else
{
//
// Treble decrease
//
if(ssTrebleA > -8)
ssTrebleA--;
VS10xxBassTrebleEnhance(ssTrebleA, 12, ssBassA, 10);
}
break;
case JOYSTICK_KEY_LEFT:
if(!ucKeySelFlag)
{
//
// Balance decrease
//
if(ssVolBalance>-254)
ssVolBalance--;
VS10xxSetBalance(ssVolBalance);
}
else
{
//
// bass decrease
//
if(ssBassA>0)
ssBassA--;
VS10xxBassTrebleEnhance(ssTrebleA, 12, ssBassA, 10);
}
break;
case JOYSTICK_KEY_RIGHT:
if(!ucKeySelFlag)
{
//
// balance increase
//
if(ssVolBalance<254) ssVolBalance++;
VS10xxSetBalance(ssVolBalance);
}
else
{
//
// Bass increase
//
if(ssBassA<15)
ssBassA++;
VS10xxBassTrebleEnhance(ssTrebleA, 12, ssBassA, 10);
}
break;
default :
break;
}
}
// CH376FileClose(FALSE);
}
