【紧急求助】海思3559驱动TLV320AIC3101 采集音频没有数据，配置是否正确

WEI HUO

Other Parts Discussed in Thread: TLV320AIC31, TLV320AIC3101, TLV320AIC3100

电路图如上：

配置参数如下：

tlv320aic31_write(IIC_device_addr[chip_num], 2, 0xaa);
tlv320aic31_write(IIC_device_addr[chip_num], 3, 0x10);
tlv320aic31_write(IIC_device_addr[chip_num], 7, 0x0a);
tlv320aic31_write(IIC_device_addr[chip_num], 8, 0xf0);
tlv320aic31_write(IIC_device_addr[chip_num], 9, 0x07);
tlv320aic31_write(IIC_device_addr[chip_num], 12, 0x50);
tlv320aic31_write(IIC_device_addr[chip_num], 14, 0x80);
tlv320aic31_write(IIC_device_addr[chip_num], 15, 0x00);
tlv320aic31_write(IIC_device_addr[chip_num], 16, 0x00);
tlv320aic31_write(IIC_device_addr[chip_num], 17, 0x0f);
tlv320aic31_write(IIC_device_addr[chip_num], 18, 0xf0);
tlv320aic31_write(IIC_device_addr[chip_num], 19, 0x04);
tlv320aic31_write(IIC_device_addr[chip_num], 24, 0x04);
//tlv320aic31_write(IIC_device_addr[chip_num], 22, 0x78);
tlv320aic31_write(IIC_device_addr[chip_num], 25, 0x40);
tlv320aic31_write(IIC_device_addr[chip_num], 37, 0xE0);
tlv320aic31_write(IIC_device_addr[chip_num], 38, 0x14);
tlv320aic31_write(IIC_device_addr[chip_num], 40, 0x80);
tlv320aic31_write(IIC_device_addr[chip_num], 41, 0x01);
tlv320aic31_write(IIC_device_addr[chip_num], 42, 0xA8);
tlv320aic31_write(IIC_device_addr[chip_num], 43, 0x00);
tlv320aic31_write(IIC_device_addr[chip_num], 44, 0x00);
tlv320aic31_write(IIC_device_addr[chip_num], 47, 0x80);
tlv320aic31_write(IIC_device_addr[chip_num], 51, 0x9f);
tlv320aic31_write(IIC_device_addr[chip_num], 64, 0x80);
tlv320aic31_write(IIC_device_addr[chip_num], 65, 0x9f);
tlv320aic31_write(IIC_device_addr[chip_num], 102, 0x32);

3559采集端的配置如下：

stACapAttr.enAudioMode = HI_MPP_AUDIO_MODE_I2S_SLAVE; /* I2S 从模式 */
stACapAttr.enBitwidth = HI_MPP_AUDIO_BITWIDTH_16; /* Bit width is 16 bits */
stACapAttr.enSampleRate = HI_MPP_AUDIO_SAMPLE_RATE_48; /* 48K Sample rate */
stACapAttr.enSoundMode = HI_MPP_AUDIO_SOUND_MODE_STEREO; /* 立体声 */
stACapAttr.u32PtNumPerFrm = 1024; /* 每帧采样点个数 */

TLV320AIC3101一端的I2S配置成主模式，采集端3559是不是就应该配置成从模式。

请帮忙确认下，以上电路和配置是不是匹配，我现在采集出来，没有声音。I2S的MCLK有时钟12M多。sample rate是否匹配？

6 年多前

0 WEI HUO 6 年多前

Prodigy 80 points

还是自己来回复吧，排除掉硬件方面的问题之后，因为mic接法不一样，配置需要改，配置如下：

/*soft reset*/
tlv320aic31_write(IIC_device_addr[chip_num],0x1,0x80);
msleep(10);
/*CLKDIV_IN uses MCLK*/
tlv320aic31_write(IIC_device_addr[chip_num], 102, 0x32);

#if 1
/*PLL disable and select Q value*/
tlv320aic31_write(IIC_device_addr[chip_num], 3, 0x10);
#else
/*PLL enable */
tlv320aic31_write(IIC_device_addr[chip_num], 3, 0x82);/* P=2 */
tlv320aic31_write(IIC_device_addr[chip_num], 4, 0x1c);/* J=28 */
tlv320aic31_write(IIC_device_addr[chip_num], 5, 0x2c);
tlv320aic31_write(IIC_device_addr[chip_num], 6, 0x8);/* reg 5 and 6 set D=2818*/
tlv320aic31_write(IIC_device_addr[chip_num], 11, 0x1);/* R=1 */
#endif

/*left and right DAC open*/
tlv320aic31_write(IIC_device_addr[chip_num], 7, 0xa);/* FSref = 48 kHz */

/*sample*/
tlv320aic31_write(IIC_device_addr[chip_num], 2, 0xaa);/* FS = FSref/6 */

/*ctrl mode*/
tlv320aic31_write(IIC_device_addr[chip_num], 8, 0x30);/* master mode */

/*Audio Serial Data Interface Control*/
//tlv320aic31_write(IIC_device_addr[chip_num], 9, 0x7);/* I2S mode,16bit */
tlv320aic31_write(IIC_device_addr[chip_num], 9, 0x0);/* I2S mode,16bit */
/*Audio Codec Digital Filter Control Register*/
tlv320aic31_write(IIC_device_addr[chip_num], 12, 0x50);

//tlv320aic31_write(IIC_device_addr[chip_num], 25, 0x0);
tlv320aic31_write(IIC_device_addr[chip_num], 25, 0xC0);
tlv320aic31_write(IIC_device_addr[chip_num], 17, 0xff);
tlv320aic31_write(IIC_device_addr[chip_num], 18, 0xff);

tlv320aic31_write(IIC_device_addr[chip_num], 15, 0x0);
tlv320aic31_write(IIC_device_addr[chip_num], 16, 0x0);
//tlv320aic31_write(IIC_device_addr[chip_num], 19, 0x7c);
//tlv320aic31_write(IIC_device_addr[chip_num], 22, 0x7c);

tlv320aic31_write(IIC_device_addr[chip_num], 19, 0x04);
tlv320aic31_write(IIC_device_addr[chip_num], 22, 0x04);
tlv320aic31_write(IIC_device_addr[chip_num], 24, 0x78);
tlv320aic31_write(IIC_device_addr[chip_num], 21, 0x78);

tlv320aic31_write(IIC_device_addr[chip_num], 28, 0x0);
tlv320aic31_write(IIC_device_addr[chip_num], 31, 0x0);

/*out ac-coupled*/
tlv320aic31_write(IIC_device_addr[chip_num], 14, 0x80);

/*left and right DAC power on*/
tlv320aic31_write(IIC_device_addr[chip_num], 37, 0xe0);

/*out common-mode voltage*/
tlv320aic31_write(IIC_device_addr[chip_num], 40, 0x80);

/*out path select*/
tlv320aic31_write(IIC_device_addr[chip_num], 41, 0x0);

/*DTS2014123002762 œ«Æô¶¯ÑÓÊ±ÓÉ2sžÄÎª200ms*/
tlv320aic31_write(IIC_device_addr[chip_num], 42, 0x78);

/*left DAC not muted*/
tlv320aic31_write(IIC_device_addr[chip_num], 43, 0x0);

/*right DAC not muted*/
tlv320aic31_write(IIC_device_addr[chip_num], 44, 0x0);

tlv320aic31_write(IIC_device_addr[chip_num], 47, 0x80);

/*HPLOUT is not muted*/
tlv320aic31_write(IIC_device_addr[chip_num], 51, 0x9f);

tlv320aic31_write(IIC_device_addr[chip_num], 64, 0x80);
/*HPROUT is not muted*/
tlv320aic31_write(IIC_device_addr[chip_num], 65, 0x9f);

/*out short circuit protection*/
tlv320aic31_write(IIC_device_addr[chip_num], 38, 0x3e);