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5509的语音回放程序，但是DRR寄存器没变化，是不是配置错了？可是我是参考的实验例子。。。请老师帮忙看看问题出在哪了啊
/******************************************************************************/ /* 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_mcbsp.h> #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); /* Initialize I2C, using parameters in init structure */ /*初始化I2C的格式*/ // I2C_config(&Config); // I2C_start(); // 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_PORT1,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)){}; aic23data = MCBSP_read16(hMcbsp); MCBSP_write16(hMcbsp,aic23data); }; } |
难道AD接MCBSP1时除了位时钟，帧同步时钟外，还需要CLKS管脚也接一个时钟吗？这个可以理解成MCBSP的工作时钟吗？但是这个引脚找不到啊？难道是需要内部产生？另外，请问老师，MCBSP可以接收IIS数据格式吗？我看SPCR1的RJUST位只有左移和右移，因为我的AD是PCM4204，如下图
那么是不是我只能选择左对齐或者右对齐的数据格式 再在寄存器里设置呢？？请老师解答，谢谢了！！！！！