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[*]我测试了一下5509的codec程序,playmode选择为1,通过line in 输入,phone out输出声音,语音芯片为aic23,在debug的时候,点击暂停,依然会播放声音?还有如何将mcbsp的内容写到dma的rcv里面和将dma的xmt内容写到mcbsp上?如何让AIC23播放DMA的xmt里面的内容? 下面是程序代码 /******************************************************************************/ /*----------------------------------------------------------------------------*/ /* 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 #include #include #include #include #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 1 //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) }; unsigned int play_mode; // 0:play 1:record and play MCBSP_Config Mcbsptest; /*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 */ 0, /* ABIS = 0 */ MCBSP_SPCR1_RINTM_RRDY, /* RINTM = 0 */ 0, /* RSYNCER = 0 */ 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 */ 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 */ 0, /* DXSTAT = N/A */ MCBSP_PCR_CLKXM_INPUT, /* CLKXM = 0 */ MCBSP_PCR_CLKRM_INPUT, /* CLKRM = 0 */ MCBSP_PCR_SCLKME_NO, /* SCLKME = 0 */ MCBSP_PCR_FSXP_ACTIVEHIGH, /* FSXP = 0 */ MCBSP_PCR_FSRP_ACTIVEHIGH, /* 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 */ 84, /* clkout value (Mhz) */ 50, /* 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*/ }; I2C_Config testI2C; /*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,0x03}; /*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,0x05}; /*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] ={0x00,0x17}; /*AIC23右通路音频调节*/ Uint16 right_line_input_volume_control[2] ={0x02,0x17}; /*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; Uint16 i2c_status; Uint16 i,temp; void delay(Uint32 k) { while(k--); } void main(void) { Uint16 aic23data = 0; i2c_status = 1; play_mode=1; /* Initialize CSL library - This is REQUIRED !!! */ /*初始化CSL库*/ CSL_init(); /*设置系统的运行速度为140MHz*/ 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 10MHz*/ delay(100); I2C_RSET(I2CSAR,0x001A); I2C_RSET(I2CMDR,0x0620); I2C_setup(&I2Cinit); /*设置I2C的Mater clock*/ I2C_RSET(I2CCLKL,100); I2C_RSET(I2CCLKH,100); I2C_getConfig(&testI2C); /*初始化McBSP0*/ hMcbsp = MCBSP_open(MCBSP_PORT1,MCBSP_OPEN_RESET); /*设置McBSP0*/ MCBSP_config(hMcbsp,&Mcbsp1Config); /*启动McBSP0*/ MCBSP_start(hMcbsp, MCBSP_RCV_START | MCBSP_XMIT_START, 0); MCBSP_getConfig(hMcbsp,&Mcbsptest); /*reset AIC23*/ i2c_status = I2C_write( reset, //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 ); delay(1000); /*设置AIC23各部分均工作*/ i2c_status = 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_status = 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_status = 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_status = 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_status = 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_status = 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 ); i2c_status = I2C_write( right_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_status = 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 ); i2c_status = I2C_write( right_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_status = 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) { if(play_mode==1) //record and play { while(!MCBSP_xrdy(hMcbsp)){}; aic23data = MCBSP_read16(hMcbsp); for(temp=3000;temp>0;temp--); while(!MCBSP_rrdy(hMcbsp)){}; MCBSP_write16(hMcbsp,aic23data); } else { while(!MCBSP_rrdy(hMcbsp)){}; aic23data = 5000; for(temp=30000;temp>0;temp-=100) { for(i=0;i<2;i++) { aic23data = 5000; MCBSP_write16(hMcbsp,aic23data); delay(temp); aic23data = 0; MCBSP_write16(hMcbsp,aic23data); delay(temp); } } } //MCBSP_write16(hMcbsp,aic23data); }; } void Delay(unsigned int nDelay) { unsigned int ii,jj,kk=0; for ( ii=0;ii |
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暂停后依然会播放声音? 要不命令没有执行, 要么是数据缓冲的问题.因为播放芯片的缓冲里还留有一定的数据可以继续播放一会
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根据您的描述,您在使用AIC23语音芯片进行调试时,即使点击暂停,声音仍然播放。这可能是因为您的程序没有正确处理暂停信号。以下是一些建议和解决方案:
1. 确保您的程序正确处理暂停信号。在您的代码中,您需要检查暂停信号的状态,并在检测到暂停信号时停止播放声音。例如,您可以使用一个全局变量来存储暂停状态,并在播放声音时检查该变量。 ```c volatile int pause_flag = 0; void play_sound() { while (1) { if (pause_flag) { // 暂停播放声音 break; } // 播放声音的代码 } } ``` 2. 将MCBSP的内容写入DMA的RCV: 您需要配置MCBSP和DMA,以便将MCBSP的数据传输到DMA的接收缓冲区。以下是配置MCBSP和DMA的示例代码: ```c // 配置MCBSP mcbsp_config_t mcbsp_config = { .sample_rate = 44100, .word_length = 16, .serial_format = MCBSP_SERIAL_FORMAT_I2S, .clock_polarity = MCBSP_CLOCK_POLARITY_LOW, .clock_phase = MCBSP_CLOCK_PHASE_SINGLE, .frame_sync_width = 32, .frame_sync_polarity = MCBSP_FRAME_SYNC_POLARITY_LOW, .frame_sync_delay = 1, .clkx_div = 1, .clkr_div = 1 }; mcbsp_init(&mcbsp_config); // 配置DMA dma_config_t dma_config = { .channel = DMA_CHANNEL_0, .transfer_mode = DMA_TRANSFER_MODE_PERIPHERAL, .source_address = (uint32_t)&mcbsp->rx_buffer, .destination_address = (uint32_t)&dma_rcv_buffer, .transfer_size = 1024, .source_burst_length = 1, .destination_burst_length = 1, .source_data_width = DMA_DATA_WIDTH_16, .destination_data_width = DMA_DATA_WIDTH_16, .source_burst_step = 0, .destination_burst_step = 0, .source_transfer_step = 1, .destination_transfer_step = 1, .arbitration_rate = DMA_ARBITRATION_RATE_1, .source_peripheral = DMA_PERIPHERAL_MCBSP_RX, .destination_peripheral = DMA_PERIPHERAL_NONE }; dma_init(&dma_config); ``` 3. 将DMA的XMT内容写入MCBSP: 您需要配置MCBSP和DMA,以便将DMA的发送缓冲区的数据传输到MCBSP。以下是配置MCBSP和DMA的示例代码: ```c // 配置MCBSP mcbsp_config_t mcbsp_config = { .sample_rate = 44100, .word_length = 16, .serial_format = MCBSP_SERIAL_FORMAT_I2S, .clock_polarity = MCBSP_CLOCK_POLARITY_LOW, .clock_phase = MCBSP_CLOCK_PHASE_SINGLE, .frame_sync_width = 32, .frame_sync_polarity = MCBSP_FRAME_SYNC_POLARITY_LOW, .frame_sync_delay = 1, .clkx_div = 1, .clkr_div = 1 }; mcbsp_init(&mcbsp_config); // 配置DMA dma_config_t dma_config = { .channel = DMA_CHANNEL_1, .transfer_mode = DMA_TRANSFER_MODE_PERIPHERAL, .source_address = (uint32_t)&dma_xmt_buffer, .destination_address = (uint32_t)&mcbsp->tx_buffer, .transfer_size = 1024, .source_burst_length = 1, .destination_burst_length = 1, .source_data_width = DMA_DATA_WIDTH_16, .destination_data_width = DMA_DATA_WIDTH_16, .source_burst_step = 0, .destination_burst_step = 0, .source_transfer_step = 1, .destination_transfer_step = 1, .arbitration_rate = DMA_ARBITRATION_RATE_1, .source_peripheral = DMA_PERIPHERAL_NONE, .destination_peripheral = DMA_PERIPHERAL_MCBSP_TX }; dma_init(&dma_config); ``` 4. 让AIC23播放DMA的XMT里面的内容: 您需要将DMA的发送缓冲区的数据传输到AIC23。以下是示例代码: ```c // 将DMA的发送缓冲区的数据传输到AIC23 aic23_config_t aic23_config = { .sample_rate = 44100, .word_length = 16, .serial_format = AIC23_SERIAL_FORMAT_I2S, .clock_polarity = AIC23_CLOCK_POLARITY_LOW, .clock_phase = AIC23_CLOCK_PHASE_SINGLE }; |
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