?? 2410iis.c
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static U8 volume = MAX_VOLUME;
rGPBDAT = rGPBDAT & ~(L3M|L3C|L3D) |(L3M|L3C); //Start condition : L3M=H, L3C=H
rGPBUP = rGPBUP & ~(0x7<<2) |(0x7<<2); //The pull up function is disabled GPB[4:2] 1 1100
rGPBCON = rGPBCON & ~(0x3f<<4) |(0x15<<4); //GPB[4:2]=Output(L3CLOCK):Output(L3DATA):Output(L3MODE)
if(dir)
{
if(volume)
volume--;
}
else
{
if(volume<MAX_VOLUME)
volume++;
}
_WrL3Addr(0x14 + 0); //DATA0 (000101xx+00)
_WrL3Data(MAX_VOLUME-volume, 0);
}
static void PlayPause(void)
{
static U8 pause = 0;
pause ^= 1;
if(pause&1)
rIISCON &= ~1;
else
rIISCON |= 1;
}
//===================================================================
void ChangeDMA2(void)
{
if(which_Buf)
{
rDISRCC2 = (0<<1) + (0<<0); //AHB, Increment
rDISRC2 = (int)(Buf + 0x30); //0x31000030~(Remove header)
}
else
{
rDISRCC2 = (0<<1) + (0<<0); //AHB, Increment
rDISRC2 = (int)(Buf + 0x30+(size/2)); //0x31000030 + size/2~
}
}
//===================================================================
void IIS_PortSetting(void)
{
//----------------------------------------------------------
// PORT B GROUP
//Ports : GPB4 GPB3 GPB2
//Signal : L3CLOCK L3DATA L3MODE
//Setting: OUTPUT OUTPUT OUTPUT
// [9:8] [7:6} [5:4]
//Binary : 01 , 01 01
//----------------------------------------------------------
rGPBUP = rGPBUP & ~(0x7<<2) | (0x7<<2); //The pull up function is disabled GPB[4:2] 1 1100
rGPBCON = rGPBCON & ~(0x3f<<4) | (0x15<<4); //GPB[4:2]=Output(L3CLOCK):Output(L3DATA):Output(L3MODE)
//----------------------------------------------------------
// PORT E GROUP
//Ports : GPE4 GPE3 GPE2 GPE1 GPE0
//Signal : I2SSDO I2SSDI CDCLK I2SSCLK I2SLRCK
//Binary : 10 , 10 10 , 10 10
//----------------------------------------------------------
rGPEUP = rGPEUP & ~(0x1f) | 0x1f; //The pull up function is disabled GPE[4:0] 1 1111
rGPECON = rGPECON & ~(0x3ff) | 0x2aa; //GPE[4:0]=I2SSDO:I2SSDI:CDCLK:I2SSCLK:I2SLRCK
rGPFUP = ((rGPFUP & ~(1<<0)) | (1<<0)); //GPF0
rGPFCON = ((rGPFCON & ~(3<<0)) | (1<<1)); //GPF0=EINT0
rEXTINT0 = ((rEXTINT0 & ~(7<<0)) | (2<<0)); //EINT0=falling edge triggered
}
//===================================================================
void _WrL3Addr(U8 data)
{
S32 i,j;
rGPBDAT = rGPBDAT & ~(L3D | L3M | L3C) | L3C; //L3D=L, L3M=L(in address mode), L3C=H
for(j=0;j<4;j++); //tsu(L3) > 190ns
//GPB[4:2]=L3C:L3D:L3M
for(i=0;i<8;i++) //LSB first
{
if(data & 0x1) //If data's LSB is 'H'
{
rGPBDAT &= ~L3C; //L3C=L
rGPBDAT |= L3D; //L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
rGPBDAT |= L3C; //L3C=H
rGPBDAT |= L3D; //L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
else //If data's LSB is 'L'
{
rGPBDAT &= ~L3C; //L3C=L
rGPBDAT &= ~L3D; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
rGPBDAT |= L3C; //L3C=H
rGPBDAT &= ~L3D; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
data >>= 1;
}
rGPBDAT = rGPBDAT & ~(L3D | L3M | L3C) | (L3C | L3M); //L3M=H,L3C=H
}
//===================================================================
void _WrL3Data(U8 data,int halt)
{
S32 i,j;
if(halt)
{
rGPBDAT = rGPBDAT & ~(L3D | L3M | L3C) | L3C; //L3C=H(while tstp, L3 interface halt condition)
for(j=0;j<4;j++); //tstp(L3) > 190ns
}
rGPBDAT = rGPBDAT & ~(L3D | L3M | L3C) | (L3C | L3M); //L3M=H(in data transfer mode)
for(j=0;j<4;j++); //tsu(L3)D > 190ns
//GPB[4:2]=L3C:L3D:L3M
for(i=0;i<8;i++)
{
if(data & 0x1) //if data's LSB is 'H'
{
rGPBDAT &= ~L3C; //L3C=L
rGPBDAT |= L3D; //L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
rGPBDAT |= (L3C | L3D); //L3C=H,L3D=H
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
else //If data's LSB is 'L'
{
rGPBDAT &= ~L3C; //L3C=L
rGPBDAT &= ~L3D; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
rGPBDAT |= L3C; //L3C=H
rGPBDAT &= ~L3D; //L3D=L
for(j=0;j<4;j++); //tcy(L3) > 500ns
}
data >>= 1; //For check next bit
}
rGPBDAT = rGPBDAT & ~(L3D | L3M | L3C) | (L3C | L3M); //L3M=H,L3C=H
}
//===================================================================
void __irq DMA2_Done(void)
{
ClearPending(BIT_DMA2); //Clear pending bit
WrUTXH0('@');
if(!which_Buf)
which_Buf = 1;
else
which_Buf = 0;
}
//===================================================================
void __irq DMA2_Rec_Done(void)
{
ClearPending(BIT_DMA2); //Clear pending bit
Rec_Done = 1;
}
//===================================================================
void __irq RxInt(void)
{
ClearSubPending(BIT_SUB_RXD0); //Clear pending bit (Requested)
ClearPending(BIT_UART0);
*_temp ++= RdURXH0();
}
//===================================================================
static void Muting(void)
{
if(mute) //Mute
{
_WrL3Addr(0x14 + 0); //DATA0 (000101xx+00)
_WrL3Data(0xa4,0); //10,1,00,1,00 : after, no de-emp, mute, flat
mute = 0;
// Uart_Printf("= Mute =\n");
}
else //No mute
{
_WrL3Addr(0x14 + 0); //DATA0 (000101xx+00)
_WrL3Data(0xa0,0); //10,1,00,0,00 : after, no de-emp, no mute, flat
mute = 1;
// Uart_Printf("= No Mute =\n");
}
}
//=======[ Added Slave mode Test Program as Bellow --> July 24, 2002 Tark, SOP ]=====
volatile int Tx_Done;
volatile int Rx_Done;
void __irq TR_Done(void)
{
ClearPending(BIT_DMA2); //Clear pending bit
Rx_Done = 1;
Tx_Done = 1;
// WrUTXH0('.');
}
//===================================================================
void Iis_Tx(void)
{
unsigned int i, j;
unsigned short *txdata;
Tx_Done = 0;
Uart_TxEmpty(0);
Uart_Printf("[ IIS Slave Tx test ]\n");
IIS_PortSetting();
//Tx DATA initialize
txdata = (unsigned short *)0x31000000;
for(i=0;i<DataCount;i++)
*(txdata+i) = i;
//IIS Initialize
//Slave[8],Tx[7:6],L-ch=low[5],MSB[4],16bit ch[3],CDCLK[2]=256fs,IISCLK[1:0]=32fs
rIISMOD = (1<<8) + (2<<6) + (0<<5) + (1<<4) + (1<<3) + (0<<2) + (1<<0);
rIISPSR = (2<<5) + 2; //Prescaler_A/B=2 <- FCLK 135.4752MHz(1:2:4),11.2896MHz(256fs),44.1KHz
rIISFCON = (0<<15) + (1<<13); //Tx Normal[15],Tx FIFO Enable[13] --> start piling....
//Tx DMA disable[5],Rx DMA disable[4],Tx not idle[3],Rx idle[2],prescaler enable[1],stop[0]
rIISCON = (0<<5) + (0<<4) + (0<<3) + (1<<2) + (1<<1) + (0<<0);
//Tx start
rIISCON |=0x1;
for(i=0;i<DataCount;i++)
{
while( (rIISCON & 0x080) == 0x80 ); //wait when fifo is not empty.
*IISFIFO = *(txdata+i); // put the data into fifo
}
//Tx Stop(Slave)
Delay(10);
rIISCON = 0x0; //IIS stop
rDMASKTRIG2 = (1<<2); //DMA2 stop
rIISFCON = 0x0; //for FIFO flush
Uart_Printf("\nTx End...\n");
Uart_Printf("Last 256 Half-Word in 65KBytes transferred data\n");
for(i=0;i<DataDisplay;i++)
{
Uart_Printf("0x%x=",(txdata+0xff00+i));
Uart_Printf("%04x ",*(txdata+0xff00+i));
}
}
//===================================================================
void Iis_Rx(void)
{
unsigned int i, j, k, count;
unsigned short *rxdata;
Rx_Done = 0;
Uart_TxEmpty(0);
#if PollMode
Uart_Printf("[ IIS Master Rx Polling mode test ]\n");
#endif
#if DMA2Mode
Uart_Printf("[ IIS Master Rx DMA2 mode test ]\n");
#endif
IIS_PortSetting();
pISR_DMA2= (unsigned)TR_Done;
rINTMSK = ~(BIT_DMA2);
//Rx Buf initialize
rxdata=(unsigned short *)0x31000000;
for(i=0;i<DataCount;i++)
*(rxdata+i)=0x0;
#if DMA2Mode
//DMA2 Initialize
rDISRCC2 = (1<<1) + (1<<0); //The source is in the system bus(APB), address Fixed
rDISRC2 = ((U32)IISFIFO); //Base address (start address) of source to transfer(IISFIFO)
rDIDSTC2 = (0<<1) + (0<<0); //The destination is in the system bus (AHB), address Increment.
rDIDST2 = (int)rxdata; //Base address (start address) of destination to transfer(0x31000000)
rDCON2 = (1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(1<<24)+(1<<23)+(1<<22)+(1<<20)+(DataCount);
//Handshake[31], sync PCLK[30], TC int[29], single tx[28], single service[27], I2SSDI[24], I2S request[23],
//off-reload[22], half-word[20], Initial transfer count=DataCount
rDMASKTRIG2 = (0<<2)+(1<<1)+0; //No-stop, DMA2 channel on, No-sw trigger
//IIS Initialize (DMA Mode)
//Master[8],Rx[7:6],L-ch=low[5],MSB[4],16bit ch[3],CDCLK[2]=256fs,IISCLK[1:0]=32fs
rIISMOD = (0<<8) + (1<<6) + (0<<5) + (1<<4) + (1<<3) + (0<<2) + (1<<0);
rIISPSR = (2<<5) + 2; //Prescaler_A/B=2 <- FCLK 135.4752MHz(1:2:4),11.2896MHz(256fs),44.1KHz
rIISFCON = (1<<14) + (1<<12); //Rx DMA[14],Rx FIFO Enable[12]--> start piling....
//Tx DMA disable[5],Rx DMA enable[4],Tx idle[3],Rx not idle[2],prescaler enable[1],stop[0]
rIISCON = (0<<5) + (1<<4) + (1<<3) + (0<<2) + (1<<1) + (0<<0);
#endif
#if PollMode
//IIS Initialize (Polling Mode)
//Master[8],Rx[7:6],L-ch=low[5],MSB[4],16bit ch[3],CDCLK[2]=256fs,IISCLK[1:0]=32fs
rIISMOD = (0<<8) + (1<<6) + (0<<5) + (1<<4) + (1<<3) + (0<<2) + (1<<0);
rIISPSR = (2<<5) + 2; //Prescaler_A/B=2 <- FCLK 135.4752MHz(1:2:4),11.2896MHz(256fs),44.1KHz
rIISFCON = (0<<14) + (1<<12); //Rx normal[14],Rx FIFO Enable[12]--> start piling....
//Tx DMA disable[5],Rx DMA disable[4],Tx idle[3],Rx not idle[2],prescaler enable[1],stop[0]
rIISCON = (0<<5) + (0<<4) + (1<<3) + (0<<2) + (1<<1) + (0<<0);
#endif
//Rx start
rIISCON |= 0x1;
#if PollMode //*** Need to Polling mode ***
count = DataCount;
while(0<count)
{
j = rIISFCON & 0x1f; //Rx FIFO data count(Read only)=31
if(j == 0)
{
while(!j)
j = rIISFCON & 0x1f; //Rx FIFO data count(Read only)=31
}
for(i=0;i<j;i++)
{
count--;
*rxdata++ = *IISFIFO;
}
}
#endif
#if DMA2Mode
while(!Rx_Done);
#endif
//Rx Stop(Master)
Delay(10);
rIISCON = 0x0; //IIS stop
rDMASKTRIG2 = (1<<2); //DMA2 stop
rIISFCON = 0x0; //for FIFO flush
Uart_Printf("Last 256 Half-Word in 65KBytes received data\n");
rxdata=(unsigned short *)0x31000000;
for(i=0;i<DataDisplay;i++)
{
Uart_Printf("0x%x=", (rxdata+0xff00+i));
Uart_Printf("%04x ",*(rxdata+0xff00+i));
}
rINTMSK = (BIT_DMA2);
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