#include "DSP28_Device.h"
#include "RS.H"
#include "setting.h"

interrupt void eva_cmp3_isr(void);
//interrupt void evb_cmp4_isr(void);
interrupt void EVB_T3PINT_ISR(void);
interrupt void adc_isr(void);

extern void DSP28x_usDelay(unsigned long Count);
extern int16 buffer3[];
extern int16 buffer4[];
extern int16 synth[];

#define DAC_CLR GpioDataRegs.GPBDAT.bit.GPIOB8  
#define DAC_LD  GpioDataRegs.GPBDAT.bit.GPIOB9  
#define DAC_CS  GpioDataRegs.GPBDAT.bit.GPIOB10 


WordType	AdcFrame;
Uint16 	i, j;
Uint16 	ConversionCount;
Uint16 	EncFlag;
Uint16 	DecFlag;
Uint16 	DemoduFlag;
Uint16 	PWMOFDMStart;    
Uint16 	PwmoutStart;
Uint16 	PwmCount;                                   //音頻輸出計數 
Uint16 	pwmtestCount;
Uint16 	EncNum;
Uint16 	ModuDataOutNum;                             //調制數據輸出計數
Uint16 	ADCInputVoiceNum;                              //音頻輸入采樣計數
Uint16 	ADCModuDataNum;                             //調制數據采樣輸入計數
Uint16 	Voltage1[480];                                  //音頻輸入采樣
extern int    Voltage2[3200];                                 //調制后的數據發射
int  	Voltage3[3500];                                 //調制后的數據接收 
int		Voltage4[1600];                                  //音頻輸出
int     *pModuData;
int    	*pADCModuData;                       //指示待調制數據
int    	ModuFrame;
extern int demodushift;

int16 OFDM_frame;
Uint16 FrameSynFlag; // OFDM demodulate frame synch starting flag
Uint16 FrameSyn;
Uint16 volt3flag;
int *DecoData;
Uint16 OFDMSampleStart;
Uint16 SampleDelay;
Uint16 TestCnt;
Uint16 Div2Flag;
Uint16 BitConv;
Uint16 SpiRxTemp;
Uint16 Volt3_Temp;

/*variables in TxRx.c*/
extern WordType TxSymbolMark;
extern WordType TxBitMark;
extern WordType RxPosMark;
extern WordType FrameTx;
extern WordType FrameRx;
extern unsigned long int Seed;
extern short OFDMFrameNum;
/*
Uint16 SynErrCntDown = 0;
Uint16 SynErrCntUp = 0;
Uint16 MaxFrameSyn = 0;
*/
extern Uint16 secureRamFuncs_loadstart;
extern Uint16 secureRamFuncs_loadend;
extern Uint16 secureRamFuncs_runstart;


void main(void)
{
 
    DINT;
    InitSysCtrl();
    
    EALLOW;
    GpioMuxRegs.GPAMUX.all = 0x00FF;
    GpioMuxRegs.GPBMUX.all = 0x00FF; 
    GpioMuxRegs.GPBDIR.all = 0x0700;
    GpioMuxRegs.GPFMUX.all = 0x0005;
    GpioMuxRegs.GPEQUAL.all = 0x0032;
    EDIS;
   
	IER = 0x0000;
	IFR = 0x0000;

	InitPieCtrl();
	
	InitPieVectTable();	
/*	*/
// Section secureRamFuncs contains user defined code that runs from CSM secured RAM
	memcpy(	&secureRamFuncs_runstart,
			&secureRamFuncs_loadstart,
			&secureRamFuncs_loadend - &secureRamFuncs_loadstart);


/*** Initialize the FLASH ***/
	InitFlash();						// Initialize the FLASH (FILE: SysCtrl.c)


    InitAdc();
    
    InitSpi();
    
    AdcRegs.ADCTRL3.bit.ADCCLKPS = 0x0003;	//ADC clock =150/6=25M
    AdcRegs.ADCTRL1.bit.CPS = 0x0000;
    AdcRegs.ADCTRL1.bit.ACQ_PS = 0x0001;	// SAM/HOLD = 400/10 = 40KHz  
    AdcRegs.ADCTRL1.bit.SEQ_CASC = 0x0001;	//single 16-state sequencer
    
    EALLOW;
	PieVectTable.ADCINT = &adc_isr;
	PieVectTable.CMP3INT  = &eva_cmp3_isr;
	PieVectTable.T3PINT = &EVB_T3PINT_ISR;
//	PieVectTable.CMP4INT  = &evb_cmp4_isr;
	EDIS;
	
    // Configure ADC
    AdcRegs.ADCMAXCONV.all = 0x000F;       		// Setup 16 conversion on SEQ
    AdcRegs.ADCCHSELSEQ1.bit.CONV00 = 0x0000; 	// Setup ADCINA0 as 1-8 SEQ conv.
    AdcRegs.ADCCHSELSEQ1.bit.CONV01 = 0x0003; 	 
    AdcRegs.ADCCHSELSEQ1.bit.CONV02 = 0x0000;    
    AdcRegs.ADCCHSELSEQ1.bit.CONV03 = 0x0003;
    AdcRegs.ADCCHSELSEQ2.bit.CONV04 = 0x0000;
    AdcRegs.ADCCHSELSEQ2.bit.CONV05 = 0x0003;
    AdcRegs.ADCCHSELSEQ2.bit.CONV06 = 0x0000;
    AdcRegs.ADCCHSELSEQ2.bit.CONV07 = 0x0003;
    AdcRegs.ADCCHSELSEQ3.bit.CONV08 = 0x0000; 	// Setup ADCINA3 as 9-16 SEQ conv.
    AdcRegs.ADCCHSELSEQ3.bit.CONV09 = 0x0003; 	 
    AdcRegs.ADCCHSELSEQ3.bit.CONV10 = 0x0000;    
    AdcRegs.ADCCHSELSEQ3.bit.CONV11 = 0x0003;
    AdcRegs.ADCCHSELSEQ4.bit.CONV12 = 0x0000;
    AdcRegs.ADCCHSELSEQ4.bit.CONV13 = 0x0003;
    AdcRegs.ADCCHSELSEQ4.bit.CONV14 = 0x0000;
    AdcRegs.ADCCHSELSEQ4.bit.CONV15 = 0x0003;
    AdcRegs.ADCTRL2.bit.EVA_SOC_SEQ1 = 1;  // Enable EVASOC to start SEQ1
    AdcRegs.ADCTRL2.bit.INT_ENA_SEQ1 = 1;  // Enable SEQ1 interrupt (every EOS)

    // Configure EVA
	EvaRegs.EVAIMRA.all = 0x0008;
    EvaRegs.EVAIFRA.all = 0x0008;
    EvaRegs.ACTRA.all = 0x0800;
	EvaRegs.DBTCONA.all = 0x0000; // Disable Dead Band Unit
    EvaRegs.COMCONA.all = 0xA600;
    
    // Configure EVB
    EvbRegs.EVBIMRA.all = 0x0080;//0x0002;
    EvbRegs.EVBIFRA.all = 0x0080;//0x0002;
    EvbRegs.ACTRB.all = 0x0666;
    EvbRegs.DBTCONB.all = 0x0000; // Disable Dead Band Unit
    EvbRegs.COMCONB.all = 0x0000;//0xA600;  
   
    //ADC interrupt period configuration
    EvaRegs.GPTCONA.bit.T2TOADC = 2;       // Enable EVASOC in EVA
	EvaRegs.T2CNT = 0x186A;   
    EvaRegs.T2PR =0x249F;                  // SOC 采樣頻率= HSPCLK/9375 = 16K
    EvaRegs.T2CON.all = 0x1040;            // Enable timer 2 compare (upcount mode)   

	//PWM6 interrupt period configuration
	EvaRegs.T1PR = 0x249F;                 // PWM 輸出語音頻率= HSPCLK/9375=16KHz   
    EvaRegs.T1CNT = 0x0001;   
    EvaRegs.CMPR3 = 0x0000;                // 調制后的數據發送   
    EvaRegs.T1CON.all = 0x1042;            // Enable timer 1 compare (upcount mode)       
   
    //SPI transmit interrupt period configuration
    EvbRegs.T3PR = 0x249F;                 // PWM 輸出OFDM信號頻率= HSPCLK/9375=16KHz
    EvbRegs.T3CNT = 0x0C35;   
	EvbRegs.T3CON.all = 0x1040; 	     
/*  	
	//PWM7
    EvbRegs.T3PR = 0x249F;                 // PWM 輸出OFDM信號頻率= HSPCLK/9375=16KHz   
    EvbRegs.T3CNT = 0x0000;   
    EvbRegs.CMPR4 = 0x0000;                
	EvbRegs.T3CON.all = 0x1042;
*/ 
	//Enable XINT1 interrupt, on falling edge
	XIntruptRegs.XINT1CR.all = 0x0001;
	
	PieCtrlRegs.PIEIFR1.all = 0;
	PieCtrlRegs.PIEIFR2.all = 0;
	PieCtrlRegs.PIEIFR4.all = 0;

	PieCtrlRegs.PIEIER1.bit.INTx4 = 1;//XINT1
//	PieCtrlRegs.PIEIER1.bit.INTx6 = 1;//AD
//	PieCtrlRegs.PIEIER4.bit.INTx4 = 1;//T3 period interrupt
//    PieCtrlRegs.PIEIER2.bit.INTx3 = 1;//compare3 interrupt voice output
    
//    PieCtrlRegs.PIEIER4.bit.INTx1 = 1;//compare4 interrupt OFDM signal output
    		
	IER = (M_INT1 | M_INT2 | M_INT4);	
		
	
	EINT;	 
	ERTM;	
      
    asm(" nop");
    asm(" nop");
    asm(" nop");    
    asm(" nop");    
    asm(" setc	ovm,sxm");    
    asm(" spm	1");    
    
    load();
    initiate(); //編碼初始化
    Speech_Decode_Frame_init();
    Init_RS();
	
	//初始化參數
	/*the variable used 
	for judging first OFDM frame in Transmit.c */     
  	OFDM_frame = 0;       
    demodushift = 0;
    /*initialize variables used in TxRx.c*/
    TxSymbolMark = 0;
    TxBitMark = 0;
    RxPosMark = 0;
    FrameTx = TotalFrame;
    FrameRx = TotalFrame;
    Seed = 101;
    OFDMFrameNum = 2;
    
    /*initialize variables in main function*/
    TestCnt = 0;
    FrameSynFlag = 0;
    
    for(i=0;i<88;i++)
    	Voltage3[i] = 0x2FFF;	
	
	AdcFrame = 4;
	ConversionCount = 1;	
	EncFlag = 0;
	DecFlag = 0;     
	DemoduFlag = 0;
	PWMOFDMStart = 0;
	PwmoutStart = 0;
	PwmCount = 0;
	pwmtestCount = 0;			
    EncNum = 0;
    ModuDataOutNum = 0;
	ADCInputVoiceNum = 0;  
	ADCModuDataNum = 88;          
    pModuData = Voltage2;
    pADCModuData = Voltage3;
    DecoData = buffer4;
    ModuFrame = -1;
    OFDMSampleStart = 0;
    SampleDelay = 0;
    TestCnt = 0;
    Div2Flag = 1;
    BitConv = 1;
    
	while(1)
	{
		asm(" NOP");
	}
	
    while (1)
    {
    	//語音編碼和調制
		if(EncFlag == 1)                    	//EncFlag為0表示接收數據不夠編碼,一直等待
		{
			EncFlag = 0; 			
			
			for(i=0; i<160; i++)
   			{
   				buffer3[i] = Voltage1[160*EncNum + i] - 0x89E0;   			
   			}	
   			
			if(++EncNum == 3)	//30幀
				EncNum = 0;
			
			asm(" setc 	 ovm,sxm");    
    		asm(" spm	 1");  	
		  						    
	  	 	codamr();                   //語音編碼	   			   		
	
			asm(" setc 	 ovm,sxm");    
    		asm(" spm	 1");  	
			//跟蹤voltage2的OFDM數據塊存儲位置
			ModuFrame = RS_OFDM_Mod();
			asm(" setc 	 ovm,sxm");    
    		asm(" spm	 1");  	
			if(ModuFrame == 1)
				pModuData = Voltage2 + 1040;
			else if(ModuFrame == 2 || ModuFrame == 3)
				pModuData += 720;
			else if(ModuFrame == 4)
				pModuData = Voltage2;								
		}