📄 iis.c
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#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 BDMA0_Rec_Done(void);
void __irq TR_Done(void);
void __irq RxInt(void);
#define L3D (0x200)//PA9
#define L3M (0x40)//PG6
#define L3C (0x80)//PG7
unsigned char *Buf,*_temp;
volatile unsigned int size=0;
// sword for record
unsigned short *rec_buf;
#define PLAY 0
#define RECORD 1
#define REC_LEN 0xf0000
volatile unsigned int leng,ssize;
volatile char Rec_Done=0;
volatile char mute=1;
unsigned int save_A,save_C,save_E,save_G,save_PC,save_PE,save_PG;
void Record_Iis(void)
{
unsigned int i;
// ChangePllValue(0x49,0x7,0x1); //MCLK=45.1584MHz <-- 5.6448MHz*8
// Uart_Init(45000000,115200);
// unsigned int 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("[Record test using UDA1341]\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;//选通iis特性
rPUPC |= 0xf;//禁止上拉电阻
#endif
rPCONE=(rPCONE&0xffff)+(2<<16); //PE:CODECLK
//for down
//rec_buf=(unsigned short *)0xc200000;
rec_buf=(unsigned short *)malloc((REC_LEN/2));
rNCACHBE1= ((int)rec_buf>>12) + ( (((int)rec_buf>>12) +(REC_LEN>>12))<<16 );//non-cachable 2MB
Uart_Printf("rNCACHBE1=0x%x\n",rNCACHBE1);
for(i=0;i<(REC_LEN/2);i++)
{
*(rec_buf+i)=0x0;
}
pISR_BDMA0=(unsigned)BDMA0_Rec_Done;
rINTMSK=~(BIT_GLOBAL|BIT_BDMA0);
Init1341(RECORD);
//for down
rBDCON0 |=0x11 <<2;
rBDISRC0=(1<<30)+(3<<28)+((int)IISFIF); //Half word,fix,IISFIF
//初始DMA源：传输数据类型:半字 加载地址变动方向:内部接口固定地址 初始源地址
rBDIDES0=(2<<30)+(1<<28)+((int)(rec_buf)); //IO2M,inc,Buf
//初始DMA目标:内部外设到外部存储器,加载地址变动方向:增量,初始目标地址
rBDICNT0=(1<<30)+(1<<26)+(3<<22)+(0<<21)+(0<<20)+REC_LEN;
//BDMA计数寄存器:DMA请求源:IIS, 中断模式设置:当终止计数时产生中断,在DMA计数到0时自动加载和自动开始
rBDICNT0 |= (1<<20);//enable
///////////IIS Initialize ///////
rIISCON=0x12;//a; //Rx DMA enable,Rx idle,prescaler enable
//接收DMA请求允许,发送通道空闲,
rIISMOD=0x49; //Master,Tx,L-ch=low,iis,16bit ch.,codeclk=256fs,lrck=32fs
//0 01 0 0 1 0 01 Master,Tx,L-ch=low,iis,16bit ch.,codeclk=256fs,lrck=32fs
//主模式，接收，左通道低电平,串行数据iis格式,每通道串行数据位16,主时钟频率256fs,串行时钟频率32fs
rIISPSR=0x33; //Prescaler_A/B enable, value=3
rIISFCON=0x500; //Tx/Rx DMA,Tx/Rx FIFO --> start piling....
Uart_Printf("Press any key to start record!!!\n");
Uart_Getch();
Uart_Printf("Recording...\n");
//--- Rx start
rBDCON0 = 0x0<<2; //使能DMA,必须单独设置
rIISCON |=0x1;
Uart_Printf("Please Speak to MIC and Waiting util End Record...\n");
while((!Rec_Done));
//while((!Uart_GetKey())&&);
rINTMSK |= BIT_BDMA0;
Rec_Done=0;
//--- IIS Stop
Delay(10); //for end of H/W Rx
rIISCON=0x0; //IIS stop
rBDICNT0=0x0; //BDMA stop
Uart_Printf(".....OK! End of Record!!!\n");
Uart_Printf("Press any key to play recorded data\n");
Uart_Getch();
size=REC_LEN*2;
//size=(*(rec_buf+0x28)) | (*(rec_buf+0x29)<<8) | (*(rec_buf+0x2a)<<16) | (*(rec_buf+0x2b)<<24);
// size=(size>>1)<<1;
Init1341(PLAY);
pISR_BDMA0=(unsigned)BDMA0_Done;
//pISR_URXD0=(unsigned)RxInt;
rINTMSK=~(BIT_GLOBAL|BIT_BDMA0);
rBDISRC0=(1<<30)+(1<<28)+((int)(rec_buf));//Buf+0x30));// //Half word,inc,Buf
rBDIDES0=(1<<30)+(3<<28)+((int)IISFIF); //M2IO,fix,IISFIF
rBDICNT0=(1<<30)+(1<<26)+(3<<22)+(1<<21)+(1<<20)+REC_LEN;//size;//
rBDICNT0 |= (1<<20);//enable
//使能DMA,必须单独设置
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("sample size=0x%x\n",size/2);
Uart_Printf("\n[]Now play the wave file\n");
Uart_Printf("Push any key to exit!!!\n");
//****** IIS Tx Start ******
rIISCON |=0x1;
while(!Uart_GetKey());
//****** IIS Tx Stop ******
rIISCON=0x0; //IIS stop
rBDICNT0=0x0; //BDMA stop
//for down
//free(rec_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(char mode)
{
/****** 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(RST),10(SC),000(IF),0(DC)
//STATUS 0: ReSeT,System Clock frequency of 256fs,data Input Format of iis-bus, no DCfilter
#else
_WrL3Data(0x40,0); //0,1,00,000,0
//STATUS 0: ReSeT,System Clock frequency of 256fs,data Input Format of iis-bus, no DCfilter
#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(0x81,0);
if(mode)//RECORD
{
_WrL3Addr(0x14+2); //(000101xx+10):STATUS
_WrL3Data(0xa2,0); //1, 0(OGS),1(IGS),0(PAD),0(PDA),0(DS),10(PC)
//a2 // Gain of DAC 0 dB,Gain of ADC 6dB,ADC non_inverting,DAC non-inverting
//single speed playback,ADC-on DAC-off
//in case of using Input channel 2 Amp.Gain Control samsung
//first select Input channel 2
_WrL3Addr(0x14+0); //(000101xx+00):DATA0
_WrL3Data(0xc2,0); //11000:Extended addr(3 bits),010(addr selected):(MS2,MS1,MS0,MM1,MM0)
_WrL3Data(0xe2,0); //111(Extended data),000(MS=0dB),10(Ch2=on,Ch1=off)
//then diable AGC and set the IG value
_WrL3Addr(0x14+0); //(000101xx+00):DATA0
_WrL3Data(0xc4,0); //11000:Extended addr(3 bits),100:AG&IG
_WrL3Data(0xf3,0); //111(Extended data),0(AGC=0,disable AGC:manual gain setting through IG(7bits))00,11(IG1 IG0:11)
_WrL3Addr(0x14+0); //DATA0 (000101xx+00)
_WrL3Data(0xc5,0); //11000:Extended addr(3 bits),101:IG6-IG2
_WrL3Data(0xff,0); //111(Extended data),11111:(IG6-IG2:11111)
//The Gain of input channel 2 Amp:Max 60.5dB,Input channel 2 selected
}
/* _WrL3Addr(0x14+2); //(000101xx+10):STATUS
_WrL3Data(0xa2,0); //1, 0(OGS),1(IGS),0(PAD),0(PDA),0(DS),10(PC)
//a2 // Gain of DAC 0 dB,Gain of ADC 6dB,ADC non_inverting,DAC non-inverting
//single speed playback,ADC-on DAC-off
//in case of using Input channel 2 Amp.Gain Control samsung
//first select Input channel 2
_WrL3Addr(0x14+0); //(000101xx+00):DATA0
_WrL3Data(0xc2,0); //11000:Extended addr(3 bits),010(addr selected):(MS2,MS1,MS0,MM1,MM0)
_WrL3Data(0xe2,0); //111(Extended data),000(MS=0dB),10(Ch2=on,Ch1=off)
//then diable AGC and set the IG value
_WrL3Addr(0x14+0); //(000101xx+00):DATA0
_WrL3Data(0xc4,0); //11000:Extended addr(3 bits),100:AG&IG
_WrL3Data(0xe3,0); //111(Extended data),0(AGC=0,disable AGC:manual gain setting through IG(7bits))00,11(IG1 IG0:11)
_WrL3Addr(0x14+0); //DATA0 (000101xx+00)
_WrL3Data(0xc5,0); //11000:Extended addr(3 bits),101:IG6-IG2
_WrL3Data(0xff,0); //111(Extended data),11111:(IG6-IG2:11111)
//The Gain of input channel 2 Amp:Max 60.5dB,Input channel 2 selected
*/
}
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