📄 codec.c
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/******************************************************************************/
/* Copyright 2004 by SEED Electronic Technology LTD. */
/* All rights reserved. SEED Electronic Technology LTD. */
/* Restricted rights to use, duplicate or disclose this code are */
/* granted through contract. */
/* */
/* */
/******************************************************************************/
/*----------------------------------------------------------------------------*/
/* DESCRIPTION: */
/* */
/* This is an example for EMIF of C5509 */
/*----------------------------------------------------------------------------*/
/* MODULE NAME... I2C and Mcbsp */
/* FILENAME...... codec.c */
/* DATE CREATED.. Mon 02/4/2004 */
/* COMPONENT..... */
/* PREREQUISITS.. */
/*----------------------------------------------------------------------------*/
/* DESCRIPTION: */
/* */
/* this example is that the codec is controled by the I2C and Mcbsp */
/*----------------------------------------------------------------------------*/
#include <csl.h>
#include <csl_i2c.h>
#include <stdio.h>
#include <csl_pll.h>
#include <csl_dma.h>
#include <csl_mcbsp.h>
#include <csl_gpio.h>
#pragma DATA_SECTION(src,"srcdata")
short src[256];
//src start address = 0x00c000
//256*2 byte
#pragma DATA_SECTION(des,"desdata")
short des[256];
//des start address = 0x010000
//256*2 byte
Uint16 eventId;
DMA_Handle myDmaHandle1;
DMA_Handle myDmaHandle2;
volatile int flag = 0;
interrupt void myIsr(void);
void init_dataSegment(void);
DMA_Config myconfig1 = {
0x020D,//0000001000001101b, DMACSDP DSTBEN=00, DSTPACK=0, DST=0001(DARAM), SRCBEN=00, SRCPACK=0, SRC=0001(Peripherals), DATATYPE=01(16 bit)
0x4960,//0100100101100000b, DMACCR DESAMODE=01, SRCAMODE=00, ENDPROG=1, RESERVE=0, REPEAT=0(regard endprog), AUTOINIT=1, EN=0, PRIO=1, FS=1(帧同步), SYNC=00000(NO SYNC)
0x0020,//0000000000100000b, DMACICR RESERVE=0000000000, BLOCKIE=1, LASTIE=FRAMEIE=HALFIE=DROPIE=TIMEOUTIE=0
(DMA_AdrPtr)0x2800,//DMACSSAL
0x0000,//DMACSSAU
(DMA_AdrPtr)0xc000,//DMACDSAL
0x0000,//DMACDSAU
0x20,//DMACEN 32 ELEMENT PER FRAME
0x08,//DMACFN 8 FRAME PER BLOCK
0x00,//DMACSFI
// 0x00,//DMACSEI
// 0x00,//DMACDFI
0x00 //DMACDEI
};
DMA_Config myconfig2 = {
0x0601,//0000011000000001b, DMACSDP DSTBEN=00, DSTPACK=0, DST=0011(Peripherals), SRCBEN=00, SRCPACK=0, SRC=0000(SARAM), DATATYPE=00(8 bit)
0x1960,//0001100101100000b, DMACCR DESAMODE=00, SRCAMODE=01, ENDPROG=1, RESERVE=0, REPEAT=0(regard endprog), AUTOINIT=1, EN=0, PRIO=1, FS=1(帧同步), SYNC=00000(NO SYNC)
0x0020,//0000000000100000b, DMACICR RESERVE=0000000000, BLOCKIE=1, LASTIE=FRAMEIE=HALFIE=DROPIE=TIMEOUTIE=0
(DMA_AdrPtr)0x0000,//DMACSSAL
0x0001,//DMACSSAU
(DMA_AdrPtr)0x2803,//DMACDSAL
0x0000,//DMACDSAU
0x20,//DMACEN 32 ELEMENT PER FRAME
0x08,//DMACFN 8 FRAME PER BLOCK
0x00,//DMACSFI
// 0x00,//DMACSEI
// 0x00,//DMACDFI
0x00 //DMACDEI
};
extern void VECSTART(void);
#define CODEC_ADDR 0x1A
/*锁相环的设置*/
PLL_Config myConfig = {
0, //IAI: the PLL locks using the same process that was underway
//before the idle mode was entered
1, //IOB: If the PLL indicates a break in the phase lock,
//it switches to its bypass mode and restarts the PLL phase-locking
//sequence
12, //PLL multiply value; multiply 24 times
0 //Divide by 2 PLL divide value; it can be either PLL divide value
//(when PLL is enabled), or Bypass-mode divide value
//(PLL in bypass mode, if PLL multiply value is set to 1)
};
/*McBSP set,we use mcbsp1 to send and recieve the data between DSP and AIC23*/
MCBSP_Config Mcbsp1Config = {
MCBSP_SPCR1_RMK(
MCBSP_SPCR1_DLB_OFF, /* DLB = 0,禁止自闭环方式 */
MCBSP_SPCR1_RJUST_LZF, /* RJUST = 2 */
MCBSP_SPCR1_CLKSTP_DISABLE, /* CLKSTP = 0 */
MCBSP_SPCR1_DXENA_ON, /* DXENA = 1 */
MCBSP_SPCR1_ABIS_DISABLE, /* ABIS = 0 */
MCBSP_SPCR1_RINTM_RRDY, /* RINTM = 0 */
0, /* RSYNCER = 0 */
0, /* RFULL = 0 N/A */
0, /* RRDY = 0 N/A */
MCBSP_SPCR1_RRST_DISABLE /* RRST = 0 */
),
MCBSP_SPCR2_RMK(
MCBSP_SPCR2_FREE_NO, /* FREE = 0 */
MCBSP_SPCR2_SOFT_NO, /* SOFT = 0 */
MCBSP_SPCR2_FRST_FSG, /* FRST = 0 */
MCBSP_SPCR2_GRST_CLKG, /* GRST = 0 */
MCBSP_SPCR2_XINTM_XRDY, /* XINTM = 0 */
0, /* XSYNCER = N/A */
0, /* XEMPTY = N/A */
0, /* XRDY = N/A */
MCBSP_SPCR2_XRST_DISABLE /* XRST = 0 */
),
/*单数据相，接受数据长度为16位,每相2个数据*/
MCBSP_RCR1_RMK(
MCBSP_RCR1_RFRLEN1_OF(1), /* RFRLEN1 = 1 */
MCBSP_RCR1_RWDLEN1_16BIT /* RWDLEN1 = 2 */
),
MCBSP_RCR2_RMK(
MCBSP_RCR2_RPHASE_SINGLE, /* RPHASE = 0 */
MCBSP_RCR2_RFRLEN2_OF(0), /* RFRLEN2 = 0 */
MCBSP_RCR2_RWDLEN2_8BIT, /* RWDLEN2 = 0 */
MCBSP_RCR2_RCOMPAND_MSB, /* RCOMPAND = 0 */
MCBSP_RCR2_RFIG_YES, /* RFIG = 0 */
MCBSP_RCR2_RDATDLY_1BIT /* RDATDLY = 1 */
),
MCBSP_XCR1_RMK(
MCBSP_XCR1_XFRLEN1_OF(1), /* XFRLEN1 = 1 */
MCBSP_XCR1_XWDLEN1_16BIT /* XWDLEN1 = 2 */
),
MCBSP_XCR2_RMK(
MCBSP_XCR2_XPHASE_SINGLE, /* XPHASE = 0 */
MCBSP_XCR2_XFRLEN2_OF(0), /* XFRLEN2 = 0 */
MCBSP_XCR2_XWDLEN2_8BIT, /* XWDLEN2 = 0 */
MCBSP_XCR2_XCOMPAND_MSB, /* XCOMPAND = 0 */
MCBSP_XCR2_XFIG_YES, /* XFIG = 0 */
MCBSP_XCR2_XDATDLY_1BIT /* XDATDLY = 1 */
),
MCBSP_SRGR1_DEFAULT,
MCBSP_SRGR2_DEFAULT,
MCBSP_MCR1_DEFAULT,
MCBSP_MCR2_DEFAULT,
MCBSP_PCR_RMK(
MCBSP_PCR_IDLEEN_RESET, /* IDLEEN = 0 */
MCBSP_PCR_XIOEN_SP, /* XIOEN = 0 */
MCBSP_PCR_RIOEN_SP, /* RIOEN = 0 */
MCBSP_PCR_FSXM_EXTERNAL, /* FSXM = 0 */
MCBSP_PCR_FSRM_EXTERNAL, /* FSRM = 0 */
MCBSP_PCR_SCLKME_NO, /* SCLKME = 0 */
0, /* CLKSSTAT = N/A */
0, /* DXSTAT = N/A */
0, /* DRSTAT = N/A */
MCBSP_PCR_CLKXM_INPUT, /* CLKXM = 0 */
MCBSP_PCR_CLKRM_INPUT, /* CLKRM = 0 */
MCBSP_PCR_FSXP_ACTIVEHIGH, /* FSXP = 0 */
MCBSP_PCR_FSRP_ACTIVELOW, /* FSRP = 1 */
MCBSP_PCR_CLKXP_FALLING, /* CLKXP = 1 */
MCBSP_PCR_CLKRP_RISING /* CLKRP = 1 */
),
MCBSP_RCERA_DEFAULT,
MCBSP_RCERB_DEFAULT,
MCBSP_RCERC_DEFAULT,
MCBSP_RCERD_DEFAULT,
MCBSP_RCERE_DEFAULT,
MCBSP_RCERF_DEFAULT,
MCBSP_RCERG_DEFAULT,
MCBSP_RCERH_DEFAULT,
MCBSP_XCERA_DEFAULT,
MCBSP_XCERB_DEFAULT,
MCBSP_XCERC_DEFAULT,
MCBSP_XCERD_DEFAULT,
MCBSP_XCERE_DEFAULT,
MCBSP_XCERF_DEFAULT,
MCBSP_XCERG_DEFAULT,
MCBSP_XCERH_DEFAULT
};
/* This next struct shows how to use the I2C API */
/* Create and initialize an I2C initialization structure */
I2C_Setup I2Cinit = {
0, /* 7 bit address mode */
0, /* own address - don't care if master */
144, /* clkout value (Mhz) */
100, /* a number between 10 and 400*/
0, /* number of bits/byte to be received or transmitted (8)*/
0, /* DLB mode on*/
1 /* FREE mode of operation on*/
};
/*数字音频接口格式设置
AIC23为主模式，数据为DSP模式，数据长度16位*/
Uint16 digital_audio_inteface_format[2]={0x0e,0x53};
/*AIC23的波特率设置，采样率为44.1K*/
Uint16 sample_rate_control[2] = {0x10,0x23};
/*AIC23寄存器复位*/
Uint16 reset[2] ={0x1e,0x00};
/*AIC23节电方式设置，所有部分均所与工作状态*/
Uint16 power_down_control[2] ={0x0c,0x00};
/*AIC23模拟音频的控制
DAC使能，ADC输入选择为Line*/
Uint16 analog_aduio_path_control[2] ={0x08,0x10};
/*AIC23数字音频通路的控制*/
Uint16 digital_audio_path_control[2] ={0x0a,0x01};
/*AIC23数字接口的使能*/
Uint16 digital_interface_activation[2] ={0x12,0x01};
/*AIC23左通路音频调节*/
Uint16 left_line_input_volume_control[2] ={0x01,0x17};
/*AIC23右通路音频调节*/
Uint16 right_line_input_volume_control[2] ={0x3,0x17};
/*AIC23耳机左通路音频调节*/
Uint16 left_headphone_volume_control[2] ={0x05,0xFF};
/*AIC23耳机右通路音频调节*/
Uint16 right_headphone_volume_control[2] = {0x07,0xFF};
/*定义McBSP的句柄*/
MCBSP_Handle hMcbsp;
void main(void)
{
Uint16 aic23data = 0;
/* Initialize CSL library - This is REQUIRED !!! */
/*初始化CSL库*/
CSL_init();
/*设置系统的运行速度为144MHz*/
PLL_config(&myConfig);
/*初始化DMA*/
init_dataSegment();
IRQ_setVecs((Uint32)(&VECSTART));
IRQ_globalDisable();
myDmaHandle1 = DMA_open(DMA_CHA0,0);
myDmaHandle2 = DMA_open(DMA_CHA1,1);
eventId = DMA_getEventId(myDmaHandle1);
IRQ_plug(eventId, &myIsr);
IRQ_enable(eventId);
// IRQ_plug(IRQ_EVT_DMA0,&myIsr);
// IRQ_enable(IRQ_EVT_DMA0);
DMA_config(myDmaHandle1, &myconfig1);
DMA_config(myDmaHandle2, &myconfig2);
DMA_RSET(DMAGCR, 0x00);//FREE=0, EHPIEXCL=0, EXCLPRIO=0.
// DMA_RSET(DMAGSCR, 0x00);//DINDXMODE=0.兼容模式
// DMA_RSET(DMAGTCR, 0x00);//DTCE=0, STCE=0
IRQ_globalEnable();
/* Initialize I2C, using parameters in init structure */
/*初始化I2C的格式*/
// I2C_config(&Config);
// I2C_start(&I2Cinit);
// I2C_getConfig(&Config1);
/*I2C is undet reset*/
I2C_RSET(I2CMDR,0);
/*设置预分频寄存器,I2C的mode clock is 12MHz*/
I2C_RSET(I2CPSC,0xb);
I2C_RSET(I2CMDR,0x4620);
// I2C_setup(&I2Cinit);
/*设置Ｉ２Ｃ的Mater clock*/
I2C_RSET(I2CCLKL,55);
I2C_RSET(I2CCLKH,55);
/*初始化McBSP1*/
hMcbsp = MCBSP_open(MCBSP_PORT0,MCBSP_OPEN_RESET);
/*设置McBSP1*/
MCBSP_config(hMcbsp,&Mcbsp1Config);
/*启动McBSP1*/
MCBSP_start(hMcbsp,
MCBSP_RCV_START | MCBSP_XMIT_START,
0);
/*设置AIC23各部分均工作*/
I2C_write( power_down_control,//pointer to data array
2, //length of data to be transmitted
1, //master or slaver
CODEC_ADDR, //slave address to transmit to
1, //transfer mode of operation
30000 //time out for bus busy
);
/*设置AIC23的数字接口*/
I2C_write( digital_audio_inteface_format,//pointer to data array
2, //length of data to be transmitted
1, //master or slaver
CODEC_ADDR, //slave address to transmit to
1, //transfer mode of operation
30000 //time out for bus busy
);
/*设置AIC23模拟通路*/
I2C_write( analog_aduio_path_control,//pointer to data array
2, //length of data to be transmitted
1, //master or slaver
CODEC_ADDR, //slave address to transmit to
1, //transfer mode of operation
30000 //time out for bus busy
);
/*设置数字通路*/
I2C_write( digital_audio_path_control,//pointer to data array
2, //length of data to be transmitted
1, //master or slaver
CODEC_ADDR, //slave address to transmit to
1, //transfer mode of operation
30000 //time out for bus busy
);
/*设置AIC23的采样率*/
I2C_write( sample_rate_control,//pointer to data array
2, //length of data to be transmitted
1, //master or slaver
CODEC_ADDR, //slave address to transmit to
1, //transfer mode of operation
30000 //time out for bus busy
);
/*设置耳机音量*/
I2C_write( left_headphone_volume_control,//pointer to data array
2, //length of data to be transmitted
1, //master or slaver
CODEC_ADDR, //slave address to transmit to
1, //transfer mode of operation
30000 //time out for bus busy
);
/*设置Line输入的音量*/
I2C_write( left_line_input_volume_control,//pointer to data array
2, //length of data to be transmitted
1, //master or slaver
CODEC_ADDR, //slave address to transmit to
1, //transfer mode of operation
30000 //time out for bus busy
);
/*启动AIC23*/
I2C_write( digital_interface_activation,//pointer to data array
2, //length of data to be transmitted
1, //master or slaver
CODEC_ADDR, //slave address to transmit to
1, //transfer mode of operation
30000 //time out for bus busy
);
/*回放音频*/
while(TRUE)
{
while(!MCBSP_rrdy(hMcbsp)){};
DMA_start(myDmaHandle1);
DMA_start(myDmaHandle2);
for(;;)
{};
DMA_close(myDmaHandle1);
DMA_close(myDmaHandle1);
//aic23data = MCBSP_read16(hMcbsp);
//MCBSP_write16(hMcbsp,aic23data);
};
}
interrupt void myIsr(void)
{
//codec处理部分
int i;
for(i=0; i<256; i++)
{
des[i] = src[i];
}
GPIO_RSET(IODIR, 0xff);
if(flag == 0)
{
GPIO_RSET(IODATA, 0x01);
flag=1;
}
else
{
GPIO_RSET(IODATA, 0x00);
flag=0;
}
}
void init_dataSegment(void)
{
int i;
for(i=0; i<256; i++)
{
src[i] = 0x0000;
des[i] = 0x0000;
}
}
/******************************************************************************\
* End of i2c2.c
\******************************************************************************/
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