?? iis.c
字號:
#include "..\Target\44b.h"
#include "..\Target\44blib.h"
#include "..\Target\def.h"
#include "iis.h"
void _WrL3Addr(U8 data);
void _WrL3Data(U8 data,int halt);
void __irq BDMA0_Done(void);
void __irq TR_Done(void);
void __irq RxInt(void);
#define L3D (0x200)
#define L3M (0x40)
#define L3C (0x80)
#define RAM_ADDRESS 0xc200000//存放音樂的起始地址
unsigned char *Buf,*_temp;
volatile unsigned int size=0;
void Test_Iis(void)
{
unsigned int i,j,save_A,save_C,save_E,save_G,save_PC,save_PE,save_PG;
ChangePllValue(71,5,1); //MCLK=45.1584MHz <-- 5.6448MHz*8
Uart_Init(45200000,115200);
Uart_Printf("\n[IIS test]\n");
save_A=rPCONA;//L3DATA
save_C=rPCONC;//IIS port
save_E=rPCONE;//CODEC clk
save_G=rPCONG;//L3CLK,L3MOD
save_PC=rPUPC;
save_PE=rPUPE;
save_PG=rPUPG;
#if (BUSWIDTH==32)
Uart_Printf("IIS test should be configured 16bit data bus\n");
return;
#else //BUSWIDTH=16
rPCONC |=0xff;
rPUPC |= 0xf;
#endif
rPCONE=(rPCONE&0xffff)+(2<<16); //PE:CODECLK
pISR_BDMA0=(unsigned)BDMA0_Done;
pISR_URXD0=(unsigned)RxInt;
Buf=(unsigned char *)RAM_ADDRESS;
rNCACHBE0= ((int)Buf>>12) + ( (((int)Buf>>12) +0x200)<<16 );//non-cachable 2MB
Uart_Printf("rNCACHBE0=0x%x\n",rNCACHBE0);
_temp=Buf;
rINTMSK=~(BIT_GLOBAL|BIT_BDMA0);
/*第0x2c~0x2f字節(jié)為? 地址*/
size=*(Buf+0x28) | *(Buf+0x29)<<8 | *(Buf+0x2a)<<16 | *(Buf+0x2b)<<24;
size=(size>>1)<<1;
Uart_Printf("sample size=0x%x\n",size/2);
Uart_Printf("\n[]Now play the wave file\n");
///////////////////////////////////////////////////////////////////////////////////
Init1341();
/****** BDMA0 Initialize ******/
rBDISRC0=(1<<30)+(1<<28)+(int)(Buf+0x30); //Half word,inc,Buf/*從buf+30開始*/
rBDIDES0=(1<<30)+(3<<28)+((int)IISFIF); //M2IO,fix,IISFIF
rBDICNT0=(1<<30)+(1<<26)+(3<<22)+(1<<21)+(0<<20)+size;
rBDICNT0 |= (1<<20);//enable
rBDCON0 = 0x0<<2;
/****** IIS Initialize ******/
rIISCON=0x22; //Tx DMA enable,Rx idle,prescaler enable
rIISMOD=0x89; //Master,Tx,L-ch=low,iis,16bit ch.,codeclk=256fs,lrck=32fs
rIISPSR=0x33; //Prescaler_A/B enable, value=3
rIISFCON=0xa00; //Tx/Rx DMA,Tx/Rx FIFO --> start piling....
Uart_Printf("Push any key to exit!!!\n");
/****** IIS Tx Start ******/
rIISCON |=0x1;
while(!Uart_GetKey());
/****** IIS Tx Stop ******/
Uart_Printf("Exit Playing.\n");
rIISCON=0x0; //IIS stop
rBDICNT0=0x0; //BDMA stop
//for down
free(Buf);
Cache_Flush();
rNCACHBE0=0x0;
size=0;
rPCONA=save_A;
rPCONC=save_C;
rPCONE=save_E;
rPCONG=save_G;
rPUPC=save_PC;
rPUPE=save_PE;
rPUPG=save_PG;
rINTMSK=BIT_GLOBAL;
ChangePllValue(0x34,0x3,0x1);//Fin=10MHz, Fout=60MHz
Uart_Init(0,115200);
}
void Init1341(void)
{
/****** Port Initialize ******/
rPCONA = 0x1ff; //PA9(out):L3D
rPCONG = 0x5000; //PG6:L3M, PG7:L3C
rPUPG |= 0xc0; //disable(pull-up)
rPDATG = L3M|L3C; //L3M=H(start condition)
//L3C=H(start condition)
/****** L3 Interface ******/
_WrL3Addr(0x14+2); //status (000101xx+10)
#ifdef FS441KHZ
_WrL3Data(0x60,0); //0,1,10,000,0 reset,256fs,no DCfilter,iis
#else
_WrL3Data(0x40,0); //0,1,00,000,0 reset,512fs,no DCfilter,iis
#endif
_WrL3Addr(0x14+2); //status (000101xx+10)
#ifdef FS441KHZ
_WrL3Data(0x20,0); //0,0,10,000,0 no reset,256fs,no DCfilter,iis
#else
_WrL3Data(0x00,0); //0,0,00,000,0 no reset,512fs,no DCfilter,iis
#endif
_WrL3Addr(0x14+2); //status (000101xx+10)
_WrL3Data(0x83,0);
//1,0,0,0,0,0,11 OGS=0,IGS=0,ADC_NI,DAC_NI,sngl speed,AonDon
}
void _WrL3Addr(U8 data)
{
U32 vPdata = 0x0; //L3D=L
U32 vPdatg = 0x0; //L3M=L(in address mode)/L3C=L
S32 i,j;
rPDATG = vPdatg; //L3M=L
rPDATG |= L3C; //L3C=H
for(j=0;j<4;j++); //tsu(L3) > 190ns
//PA9:L3D PG6:L3M PG7:L3C
for(i=0;i<8;i++)
{
if(data&0x1)//if data bit is 'H'
{
rPDATG = vPdatg; //L3C=L
rPDATA = L3D; //L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
rPDATG = L3C; //L3C=H
rPDATA = L3D; //L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
else //if data bit is 'L'
{
rPDATG=vPdatg; //L3C=L
rPDATA=vPdata; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
rPDATG=L3C; //L3C=H
rPDATA=vPdata; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
data >>=1;
}
rPDATG=L3C|L3M; //L3M=H,L3C=H
}
void _WrL3Data(U8 data,int halt)
{
U32 vPdata = 0x0; //L3D=L
U32 vPdatg = 0x0; //L3M/L3C=L
S32 i,j;
if(halt)
{
rPDATG=L3C; //L3C=H(while tstp, L3 interface halt condition)
for(j=0;j<4;j++); //tstp(L3) > 190ns
}
rPDATG=L3C|L3M; //L3M=H(in data transfer mode)
for(j=0;j<4;j++); //tsu(L3)D > 190ns
//PA9:L3MODE PG6:L3DATA PG7:L3CLOCK
for(i=0;i<8;i++)
{
if(data&0x1) //if data bit is 'H'
{
rPDATG=L3M; //L3C=L
rPDATA=L3D; //L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
rPDATG=L3C|L3M; //L3C=H,L3D=H
rPDATA=L3D;
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
else //if data bit is 'L'
{
rPDATG=L3M; //L3C=L
rPDATA=vPdatg; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
rPDATG=L3C|L3M; //L3C=H
rPDATA=vPdatg; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
data>>=1;
}
rPDATG=L3C|L3M; //L3M=H,L3C=H
}
void __irq BDMA0_Done(void)
{
rI_ISPC=BIT_BDMA0; //clear pending bit
WrUTXH0('.');
}
void __irq RxInt(void)
{
rI_ISPC=BIT_URXD0 ; //clear pending bits
*_temp++=RdURXH0();
}
volatile int Tx_Done;
volatile int Rx_Done;
void Iis_Tx(void)
{
unsigned int i, save_conC, save_pupC;
unsigned short *txdata;
Tx_Done=0;
Uart_TxEmpty(0);
ChangePllValue(0x69,0x17,0x0); //10MHz --> MCLK=45.1584MHz <-- 5.6448MHz*8
Uart_Init(45200000,115200);
Uart_Printf("[IIS Slave Tx test]\n");
save_conC=rPCONC;
save_pupC=rPUPC;
rPCONC |=0xff;//IIS port
rPUPC |= 0xf;
pISR_BDMA0=(unsigned)TR_Done;
rINTMSK=~(BIT_GLOBAL|BIT_BDMA0);
/****** Tx DATA initialize ******/
txdata=(unsigned short *)malloc(0x10000);
for(i=0;i<0x10000;i++)
*(txdata+i)=i;
rNCACHBE0= ((int)txdata>>12) + ( (((int)txdata>>12) +0x20)<<16 );//non-cachable 65KB*2
/****** BDMA0 Initialize ******/
rBDISRC0=(1<<30)+(1<<28)+(int)(txdata); //Half word,inc,Buf
rBDIDES0=(1<<30)+(3<<28)+((int)IISFIF); //M2IO,fix,IISFIF
rBDICNT0=(1<<30)+(1<<26)+(3<<22)+(0<<21)+(0<<20)+0x10000*2;
rBDICNT0 |= (1<<20);//enable
//iis,reserved,end_int,1_tx,DMA enable,COUNT
rBDCON0 = 0x0<<2;
/****** IIS Initialize ******/
rIISCON=0x22; //Tx DMA enable,Rx idle,prescaler enable
rIISMOD=0x189; //Master,Tx,L-ch=low,iis,16bit ch.,codeclk=256fs,lrck=32fs
rIISPSR=0x33; //Prescaler_A/B enable, value=3
rIISFCON=0xa00; //Tx/Rx DMA,Tx/Rx FIFO --> start piling....
/****** Tx start ******/
rIISCON |=0x1;
while(!Tx_Done);
/****** Tx Stop(Slave) ******/
Delay(10);
rIISCON=0x0; //IIS stop
rIISFCON=0x0; //for FIFO flush
rBDICNT0=0x0; //BDMA stop
Uart_Printf("\nTx End...\n");
Uart_Printf("Last 256bytes in 65KB transferred data\n");
for(i=0;i<0x100;i++)
Uart_Printf("%04x,",*(txdata+0xff00+i));
free(txdata);
Cache_Flush();
rNCACHBE0=0x0;
rPCONC=save_conC;
rPUPC=save_pupC;
rINTMSK=BIT_GLOBAL;
ChangePllValue(0x34,0x3,0x1);//Fin=10MHz, Fout=60MHz
Uart_Init(0,115200);
}
void __irq TR_Done(void)
{
rI_ISPC=BIT_BDMA0; //clear pending bit
Rx_Done=1;
Tx_Done=1;
//WrUTXH0('.');
}
void Iis_Rx(void)
{
unsigned int i, j, save_conC,save_pupC;
unsigned short *rxdata;
Rx_Done=0;
Uart_TxEmpty(0);
ChangePllValue(0x69,0x17,0x0); //10MHz --> MCLK=45.1584MHz <-- 5.6448MHz*8
Uart_Init(45200000,115200);
Uart_Printf("[IIS Master Rx test]\n");
save_conC=rPCONC;
save_pupC=rPUPC;
rPCONC |=0xff;//IIS port
rPUPC |= 0xf;
pISR_BDMA0=(unsigned)TR_Done;
rINTMSK=~(BIT_GLOBAL|BIT_BDMA0);
/****** Rx Buf initialize ******/
rxdata=(unsigned short *)malloc(0x10000);
//Uart_Printf("Receive addr=0x%x\n",rxdata);
for(i=0;i<0x10000;i++)
*(rxdata+i)=0;
rNCACHBE0= ((int)rxdata>>12) + ( (((int)rxdata>>12) +0x20)<<16 );//non-cachable 65KB*2
/****** BDMA0 Initialize ******/
rBDISRC0=(1<<30)+(3<<28)+((int)IISFIF); //Half word,fix,IISFIF
rBDIDES0=(2<<30)+(1<<28)+(int)(rxdata); //IO2M,increment,rxdata
rBDICNT0=(1<<30)+(1<<26)+(3<<22)+(0<<21)+(0<<20)+0x10000*2;
//iis,reserved,end_int,1_tx,DMA disable,COUNT
rBDICNT0 |= (1<<20);//enable
rBDCON0 = 0x0<<2;
/****** IIS Initialize ******/
rIISCON=0x12; //Rx DMA enable,Tx idle,prescaler enable
rIISMOD=0x049; //Slave,Tx,L-ch=low,iis,16bit ch.,codeclk=256fs,lrck=32fs
rIISPSR=0x33; //Prescaler_A/B enable, value=3
rIISFCON=0x500; //Tx/Rx DMA,Tx/Rx FIFO --> start piling....
/****** Rx start ******/
rIISCON |=0x1;
while(!Rx_Done);
/****** Rx Stop(Master) ******/
rIISCON=0x0; //IIS stop
rIISFCON=0x0; //for FIFO flush
rBDICNT0=0x0; //BDMA stop
/****** Check Rx data ******/
for(i=0;i<0x10000;i++)
{
j=*(rxdata+i);
if(j!=i)
{
Uart_Printf("IIS Rx fail!(Rx=%04x, Tx=%04x)\n", j,i);
break;
}
}
if(j+1==i)
Uart_Printf("\nIIS Rx O.K.!!!\n");
Uart_Printf("Last 256bytes in 65KB received data\n");
for(i=0;i<0x100;i++)
Uart_Printf("%04x,",*(rxdata+0xff00+i));
free(rxdata);
Cache_Flush();
rNCACHBE0=0x0;
rPCONC=save_conC;
rPUPC=save_pupC;
rINTMSK=BIT_GLOBAL;
ChangePllValue(0x34,0x3,0x1);//Fin=10MHz, Fout=60MHz
Uart_Init(0,115200);
}?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -