📄 iis.c
字号:
rDCON2 = ((U32)(1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<22)+(2<<20)+(play_size/4));
// 5:1= 4th bit is the tx iis 0:set = hw zero = sw
rDMAREQSEL2 = (4<<1)|(1);
rDMASKTRIG2 = (0<<2) + (1<<1) + (0<<0); //No-stop, DMA2 channel On, and No-sw trigger
//IIS Tx Start
rIISCON |= 0x1; //IIS Interface start
while(1)
{
Delay(10000);
IIS_RecSound_DMA1_Repeat(rec_buf1, REC_LEN_IIS);
if( Rec_Done==1)
break;
}
Rec_Done=0;
//IIS Tx Stop
Delay(10); //For end of H/W Tx
rIISCON &= ~(1<<0); //IIS Interface stop
rDMASKTRIG2 = (1<<2); //DMA2 stop
rIISFIC = 0x0; //For FIFO flush
rINTSUBMSK |=(BIT_SUB_DMA1);
rINTMSK |=(BIT_DMA);
printf("\nEnd of Play!\n");
}
void IIS_PlayWave_DMA2_MASTER(unsigned char *start_addr, unsigned int play_size)
{
unsigned char Exit_Key;
pISR_DMA = (unsigned)DMA2_Done;
ClearPending(BIT_DMA);
rSUBSRCPND = BIT_SUB_DMA2;
// FIFO Flush
rIISFIC = rIISFIC | (1<<15);
rIISFIC = rIISFIC & (0<<15);
// this setting for only TX
rIISCON = (1<<5) + (0<<4) + (1<<3) + (1<<2) + (0<<1) + (0<<0);
// 384fs , 32fs, 16BLC
rIISMOD = rIISMOD & ~(0x1fff) | (0<<12)|(0<<10)|(0<<8)|(0<<7)|(0<<5)|(2<<3)|(0<<1)|(0<<0);
printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
// DMA2 MAsk Release
rINTMSK = ~(BIT_DMA);
rINTSUBMSK = ~(BIT_SUB_DMA2);
printf("\nConnect head-phone plug into speaker-out socket on SMDK2411 and Press any key.\n");
getchar();
printf("If you want to exit, Press the 'x' key.\n");
printf("Now Play...\n");
printf("If you want to disable IIS tx(PAUSE), Press '0' key\n");
printf("If you want to enable IIS tx, Press '1' key\n");
printf("If you want to stop DMA channel(STOP), Press '2' key\n");
printf("If you want to start DMA channel, Press '3' key\n");
//DMA2 Register Setting
rDISRC2 = (int)(start_addr);
rDISRCC2 = (0<<1) + (0<<0);
rDIDST2 = ((unsigned int)0x55000010);
rDIDSTC2 = (1<<1) + (1<<0);
// 24bit APB ADDR Fix, 22bit auto Off, 20bit Word Transmit, 0:19 TC
rDCON2 = (U32)((1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(1<<24)+(1<<22)+(2<<20)+(50));
// 5:1= 4th bit is the tx iis 0:set = hw zero = sw
rDMAREQSEL2 = (4<<1)+(1<<0);
rDMASKTRIG2 = (0<<2) + (1<<1) + (0<<0); //No-stop, DMA2 channel On, and No-sw trigger
//IIS Tx Start
rIISCON |= 0x1;
while(!Uart_GetKey())
{
Exit_Key=getchar();
if(Exit_Key == '0')
{
rIISCON |= (1<<4);
printf("\nPAUSE...\n");
}
if(Exit_Key == '1')
{
rIISCON &= ~(1<<3);
}
if(Exit_Key == '2')
{
rDMASKTRIG2 |= (1<<2);
rIISFIC &= ~(1<<13); //* tx fifo disable
while((rIISFIC & 0x0FC0)!=0); //* wait until tx fifo gets empty
printf("\nSTOP...\n");
}
if(Exit_Key == '3')
{
rIISFIC |= (1<<13); //* tx fifo enable
rDISRC2 = (int)(start_addr);
rDMASKTRIG2 &= ~(1<<2);
rDMASKTRIG2 |= (1<<1);
}
if( (Exit_Key == 'x') | (Exit_Key == 'X'))
break;
printf("STAT2: 0x%x CURR_TC: 0x%x DCDST2: 0x%x\n", rDSTAT2&0x300000, rDSTAT2&0xfffff, rDCDST2);
}
//IIS Tx Stop
Delay(10); //For end of H/W Tx
rIISCON &= ~(1<<0); //IIS Interface stop
rDMASKTRIG2 = (1<<2); //DMA2 stop
rIISFIC = 0x0; //For FIFO flush
rINTSUBMSK |= (BIT_SUB_DMA2);
rINTMSK |= (BIT_DMA);
printf("\nEnd of Play!\n");
}
void IIS_PlayWave_DMA2_SLAVE(unsigned char *start_addr, unsigned int play_size)
{
unsigned char Exit_Key;
pISR_DMA = (unsigned)DMA2_Done;
ClearPending(BIT_DMA);
rSUBSRCPND = BIT_SUB_DMA2;
// FIFO Flush
rIISFIC = rIISFIC | (1<<15);
rIISFIC = rIISFIC & (0<<15);
// this setting for only TX
rIISCON = (1<<5) + (0<<4) + (1<<3) + (1<<2) + (0<<1) + (0<<0);
// 384fs , 32fs, 16BLC
rIISMOD = rIISMOD & ~(0x1fff) | (3<<10)|(0<<8)|(0<<7)|(0<<5)|(2<<3)|(0<<1)|(0<<0);
printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
// DMA2 MAsk Release
rINTMSK = ~(BIT_DMA);
rINTSUBMSK = ~(BIT_SUB_DMA2);
printf("\nConnect head-phone plug into speaker-out socket on SMDK2411 and Press any key.\n");
getchar();
printf("If you want to exit, Press the 'x' key.\n");
printf("Now Play...\n");
printf("If you want to disable IIS tx(PAUSE), Press '0' key\n");
printf("If you want to enable IIS tx, Press '1' key\n");
printf("If you want to stop DMA channel(STOP), Press '2' key\n");
printf("If you want to start DMA channel, Press '3' key\n");
//DMA2 Register Setting
rDISRC2 = (int)(start_addr);
rDISRCC2 = (0<<1) + (0<<0);
rDIDST2 = ((unsigned int)0x55000010);
rDIDSTC2 = (1<<1) + (1<<0);
// 24bit APB ADDR Fix, 22bit auto Off, 20bit Word Transmit, 0:19 TC
rDCON2 = (U32)((1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(1<<24)+(1<<22)+(2<<20)+(50));
// 5:1= 4th bit is the tx iis 0:set = hw zero = sw
rDMAREQSEL2 = (4<<1)+(1<<0);
rDMASKTRIG2 = (0<<2) + (1<<1) + (0<<0); //No-stop, DMA2 channel On, and No-sw trigger
//IIS Tx Start
rIISCON |= 0x1;
while(!Uart_GetKey())
{
Exit_Key=getchar();
if(Exit_Key == '0')
{
rIISCON |= (1<<4);
printf("\nPAUSE...\n");
}
if(Exit_Key == '1')
{
rIISCON &= ~(1<<3);
}
if(Exit_Key == '2')
{
rDMASKTRIG2 |= (1<<2);
rIISFIC &= ~(1<<13); //* tx fifo disable
while((rIISFIC & 0x0FC0)!=0); //* wait until tx fifo gets empty
printf("\nSTOP...\n");
}
if(Exit_Key == '3')
{
rIISFIC |= (1<<13); //* tx fifo enable
rDISRC2 = (int)(start_addr);
rDMASKTRIG2 &= ~(1<<2);
rDMASKTRIG2 |= (1<<1);
}
if( (Exit_Key == 'x') | (Exit_Key == 'X'))
break;
printf("STAT2: 0x%x CURR_TC: 0x%x DCDST2: 0x%x\n", rDSTAT2&0x300000, rDSTAT2&0xfffff, rDCDST2);
}
//IIS Tx Stop
Delay(10); //For end of H/W Tx
rIISCON &= ~(1<<0); //IIS Interface stop
rDMASKTRIG2 = (1<<2); //DMA2 stop
rIISFIC = 0x0; //For FIFO flush
rINTSUBMSK |= (BIT_SUB_DMA2);
rINTMSK |= (BIT_DMA);
printf("\nEnd of Play!\n");
}
void IIS_RecSound_DMA1_SLV(int mode, unsigned int rec_size)
{
int Exit_Key;
int iIndex, iFault=0, iGood=0, iLoop=0;
pISR_DMA = (unsigned)DMA1_Rec_Done;
ClearPending(BIT_DMA);
rSUBSRCPND = BIT_SUB_DMA1;
// FIFO flush
rIISFIC = rIISFIC | (1<<7);
rIISFIC = rIISFIC & (0<<7);
// No Pause Rx DMA Operatin, Tx disable, Rx enable, Tx DMA disable, Rx DMA enable, I2S disalbe.
rIISCON = (0<<5) + (1<<4) + (0<<3) +(0<<2) + (1<<1) + 0;
rIISMOD = rIISMOD & ~(0x1fff) | (0<<12)|(3<<10)|(1<<8) | (0<<7) | (0<<5) | (2<<3) | (0<<1) | (0<<0); //32fs
printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
// Reg_Buf Memory init
for(iIndex=0;iIndex<500000;iIndex+=1)
{
*((unsigned int*)(0x31000028)+iIndex)=0x0;
}
printf("\n Check 0x31000028 Memory Init and Press Ant Key! \n");
getchar();
printf("\n Press any key to start record!\n");
getchar();
// DMA 1 Mask Release.
rINTMSK = ~(BIT_DMA);
rINTSUBMSK = ~(BIT_SUB_DMA1);
//--- DMA1 Initialize
rDISRCC1 = (1<<1) + (1<<0);
rDISRC1 = ((unsigned int)0x55000014);
rDIDSTC1 = (0<<1) + (0<<0);
rDIDST1 = (int)rec_buf;
// 24bit APB ADDR fixed, 22bit Auto Off, 20bit Word transmit, 0:19 TC
rDCON1 = (U32)((1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(1<<24)+(1<<22)+(2<<20)+(50)); // auto off test
rDMAREQSEL1 = (5<<1) + (1<<0);
rDMASKTRIG1 = (0<<2) + (1<<1) + (0<<0); //No-stop[2], DMA1 channel On[1], No-sw trigger[0]
//IIS Rx start
rIISCON |= 0x1; // I2S start
if(mode ==1)
printf("\n\nAre you ready to record sound via MIC-In on SMDK2443?");
if(mode ==2)
printf("\n\nAre you ready to record sound via Line-In on SMDK2443?");
printf("\n Recording............If you want stop, Press 'x' or 'X' key \n");
while(!getchar())
{
Exit_Key=getchar();
if( (Exit_Key == 'x') | (Exit_Key == 'X'))
{
Rec_Done=1;
break;
}
}
Rec_Done = 0;
//IIS Rx stop
Delay(10); //For end of H/W Rx
rIISCON = 0x0; //IIS stop
rDMASKTRIG1 = (1<<2); //DMA1 stop
rIISFIC = 0x0; //For FIFO flush
rINTSUBMSK |= (BIT_SUB_DMA1);
rINTMSK |= (BIT_DMA);
printf("\nEnd of Record!\n");
getchar();
for(iIndex = 0 ; iIndex < 1048576 ; iIndex = iIndex + 4)
{
if ( *(unsigned int *)(0x31000028+iIndex)==(iLoop))
{
iGood++;
iLoop++;
}
else
{
iFault++;
iLoop++;
}
}
printf("\n\n Result Bad: %d Good: %d", iFault, iGood );
}
void IIS_RecSound_DMA1_MASTER(int mode, unsigned int rec_size)
{
int Exit_Key;
int iIndex, iFault=0, iGood=0, iLoop=0;
pISR_DMA = (unsigned)DMA1_Rec_Done;
ClearPending(BIT_DMA);
rSUBSRCPND = BIT_SUB_DMA1;
// FIFO flush
rIISFIC = rIISFIC | (1<<7);
rIISFIC = rIISFIC & (0<<7);
// No Pause Rx DMA Operatin, Tx disable, Rx enable, Tx DMA disable, Rx DMA enable, I2S disalbe.
rIISCON = (0<<5) + (1<<4) + (0<<3) +(0<<2) + (1<<1) + 0;
rIISMOD = rIISMOD & ~(0x1fff) | (0<<12)|(0<<10)|(1<<8) | (0<<7) | (0<<5) | (2<<3) | (0<<1) | (0<<0); //32fs
printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
// Reg_Buf Memory init
for(iIndex=0;iIndex<500000;iIndex+=1)
{
*((unsigned int*)(0x31000028)+iIndex)=0x0;
}
printf("\n Check 0x31000028 Memory Init and Press Ant Key! \n");
getchar();
printf("\n Press any key to start record!\n");
getchar();
// DMA 1 Mask Release.
rINTMSK = ~(BIT_DMA);
rINTSUBMSK = ~(BIT_SUB_DMA1);
//--- DMA1 Initialize
rDISRCC1 = (1<<1) + (1<<0);
rDISRC1 = ((unsigned int)0x55000014);
rDIDSTC1 = (0<<1) + (0<<0);
rDIDST1 = (int)rec_buf;
// 24bit APB ADDR fixed, 22bit Auto Off, 20bit Word transmit, 0:19 TC
rDCON1 = (U32)((1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(1<<24)+(1<<22)+(2<<20)+(50)); // auto off test
rDMAREQSEL1 = (5<<1) + (1<<0);
rDMASKTRIG1 = (0<<2) + (1<<1) + (0<<0); //No-stop[2], DMA1 channel On[1], No-sw trigger[0]
//IIS Rx start
rIISCON |= 0x1; // I2S start
if(mode ==1)
printf("\n\nAre you ready to record sound via MIC-In on SMDK2443?");
if(mode ==2)
printf("\n\nAre you ready to record sound via Line-In on SMDK2443?");
printf("\n Recording............If you want stop, Press 'x' or 'X' key \n");
while(!getchar())
{
Exit_Key=getchar();
if( (Exit_Key == 'x') | (Exit_Key == 'X'))
{
Rec_Done=1;
break;
}
}
Rec_Done = 0;
//IIS Rx stop
Delay(10); //For end of H/W Rx
rIISCON = 0x0; //IIS stop
rDMASKTRIG1 = (1<<2); //DMA1 stop
rIISFIC = 0x0; //For FIFO flush
rINTSUBMSK |= (BIT_SUB_DMA1);
rINTMSK |= (BIT_DMA);
printf("\nEnd of Record!\n");
getchar();
for(iIndex = 0 ; iIndex < 2000000 ; iIndex = iIndex + 4)
{
if ( *(unsigned int *)(0x31000028+iIndex)==(iLoop))
{
iGood++;
iLoop++;
}
else
{
iFault++;
iLoop++;
}
}
printf("\n\n Result Bad: %d Good: %d", iFault, iGood );
}
void IIS_PlayWave_DMA2_EXTCLK(unsigned char *start_addr, unsigned int play_size)
{
unsigned char Exit_Key;
pISR_DMA = (unsigned)DMA2_Done;
ClearPending(BIT_DMA);
rSUBSRCPND = BIT_SUB_DMA2;
// this setting for only TX
rIISCON = (0<<5) + (0<<4) +(1<<2) + (0<<1)+0;
// using pclk, tx only , left for channel,iis format ,384fs , 32fs ,16bit
rIISMOD = rIISMOD & ~(0x1fff) | (1<<12)|(1<<10)|(0<<8)|(0<<7)|(0<<5)|(2<<3)|(0<<1)|(0<<0);
rIISFIC = 0+(1<<15);
rIISFIC = 0+(0<<15);
printf("\nIISLRCK = %d Hz", (int) IIS_Codec_CLK/384);
rINTMSK = ~(BIT_DMA);
rINTSUBMSK = ~(BIT_SUB_DMA2);
printf("\nConnect head-phone plug into speaker-out socket on SMDK2443 and Press any key.\n");
getchar();
printf("If you want to exit, Press the 'x' key.\n");
printf("Now Play...\n");
printf("If you want to disable IIS tx(PAUSE), Press '0' key\n");
printf("If you want to enable IIS tx, Press '1' key\n");
printf("If you want to stop DMA channel(STOP), Press '2' key\n");
printf("If you want to start DMA channel, Press '3' key\n");
//DMA2 Register Setting
rDISRC2 = (int)(start_addr);
rDISRCC2 = (0<<1) + (0<<0);
rDIDST2 = ((unsigned int)0x55000010);
rDIDSTC2 = (1<<1) + (1<<0);
// 31: ACK 30: sync pclk 29:curr_tc int setting 28:unit transfer 27:single service 22: reload 20:half word
rDCON2 = ((U32)(1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(0<<22)+(2<<20)+(U32)(play_size/4));
// 5:1= 4th bit is the tx iis 0:set = hw zero = sw
rDMAREQSEL2 = (4<<1)|(1);
rDMASKTRIG2 = (0<<2) + (1<<1) + (0<<0); //No-stop, DMA2 channel On, and No-sw trigger
//IIS Tx Start
rIISCON |= 0x1; //IIS Interface start
while(1)
{
Exit_Key=getchar();
if(Exit_Key == '0'){
rIISCON |= (1<<4);
printf("\nPAUSE...\n");
}
if(Exit_Key == '1'){
rIISCON &= ~(1<<3);
}
if(Exit_Key == '2'){
rDMASKTRIG2 |= (1<<2);
rIISFIC &= ~(1<<13); //* tx fifo disable
while((rIISFIC & 0x0FC0)!=0); //* wait until tx fifo gets empty
printf("\nSTOP...\n");
}
if(Exit_Key == '3'){
rIISFIC |= (1<<13); //* tx fifo enable
rDISRC2 = (int)(start_addr);
rDMASKTRIG2 &= ~(1<<2);
rDMASKTRIG2 |= (1<<1);
}
//<-
if( (Exit_Key == 'x') | (Exit_Key == 'X'))
break;
printf("STAT2: 0x%x CURR_TC: 0x%x DCDST2: 0x%x\n", rDSTAT2&0x300000, rDSTAT2&0xfffff, rDCDST2);
}
//IIS Tx Stop
Delay(10); //For end of H/W Tx
rIISCON &= ~(1<<0); //IIS Interface stop
rDMASKTRIG2 = (1<<2); //DMA2 stop
rIISFIC = 0x0; //For FIFO flush
rINTSUBMSK |= (BIT_SUB_DMA2);
rINTMSK |= (BIT_DMA);
printf("\nEnd of Play!\n");
}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -