TI中文支持网Other Parts Discussed in Thread:TLV320AIC3101
您好：
调试 TLV320AIC3101时碰到如下问题：
机器每次重启后，使用以下tinymix命令打开HPLOUT / HPROUT通路（LEFT_LOP/M 和 RIGHT_LOP/M 情况也一样）,然后用tinyplay播放48 KHZ 1k-0db的音频文件,有时会有声音,有时没有声音,比较两种情况下codec寄存器是完全相同的(参见附录reg-tinymix.txt)用示波器测量两种情况下 各个CLK和 电源 也相同（播放时DIN 也有信号）频率及电压如下:
MCLK:12MHz
BCLK:3.07MHZ
LRCLK:48KHz
DVDD: 1.8V
IOVDD: 3.2V
DRVDD: 3.3V
AVDD_DAC: 3.3V
电源上电延时情况：
I0VDD->(500ms)->AVDD/DRVDD->(2ms)->DVDD
tinymix "PCM Playback Volume" 100 100
tinymix "Left HP Mixer DACR1 Playback Volume" 100
tinymix "Right HP Mixer DACL1 Playback Volume" 100
tinymix "HP DAC Playback Volume" 100 100
tinymix "HP Playback Switch" 1 1
tinymix "Right HP Mixer DACR1 Switch" 1
tinymix "Left HP Mixer DACR1 Switch" 1
tinymix "Right HP Mixer DACL1 Switch" 1
tinymix "Left HP Mixer DACL1 Switch" 1
reg-tinymix.txt
console:/ # cat /sys/kernel/debug/regmap/1-0018/registers 00: 00 01: 00 02: 00 03: 10 04: 04 05: 00 06: 00 07: 0a 08: 00 09: 00 0a: 00 0b: 01 0c: 00 0d: 00 0e: 00 0f: 20 10: 20 11: ff 12: ff 13: 00 14: 78 15: 78 16: 00 17: 78 18: 78 19: 00 1a: 00 1b: fe 1c: 00 1d: 00 1e: fe 1f: 00 20: 18 21: 18 22: 00 23: 00 24: 00 25: c0 26: 00 27: 00 28: 00 29: 00 2a: 00 2b: 1b 2c: 1b 2d: 2f 2e: 2f 2f: 92 30: 00 31: 00 32: 92 33: 0d 34: 2f 35: 2f 36: af 37: 00 38: 00 39: 00 3a: 0d 3b: 00 3c: 00 3d: 92 3e: 2f 3f: 2f 40: 92 41: 0d 42: 00 43: 00 44: 00 45: 2f 46: 2f 47: af 48: 0d 49: 2f 4a: 2f 4b: af 4c: 2f 4d: 2f 4e: af 4f: 09 50: 2f 51: 2f 52: af 53: 00 54: 00 55: 00 56: 09 57: 00 58: 00 59: 00 5a: 2f 5b: 2f 5c: af 5d: 09 5e: 00 5f: 00 60: 00 61: 00 62: 00 63: 00 64: 00 65: 01 66: 02 67: 00 68: 00 69: 00 6a: 00 6b: 00 6c: 00 6d: 00 console:/ # tinymix Mixer name: 'rockchip,tlv320aic3x-codec' Number of controls: 110 ctltypenumnamevalue 0INT1Left Line Mixer Line2R Bypass Volume118 1INT1Right Line Mixer Line2L Bypass Volume118 2INT1Left HP Mixer Line2R Bypass Volume118 3INT1Right HP Mixer Line2L Bypass Volume118 4INT1Left HPCOM Mixer Line2R Bypass Volume118 5INT1Right HPCOM Mixer Line2L Bypass Volume118 6INT2Line Line2 Bypass Volume71 71 7INT2HP Line2 Bypass Volume71 71 8INT2HPCOM Line2 Bypass Volume71 71 9INT2Mono Line2 Bypass Volume71 71 10INT2Mono PGA Bypass Volume71 71 11INT2Mono DAC Playback Volume71 71 12BOOL1Mono Playback SwitchOn 13INT2PCM Playback Volume100 100 14INT1Left Line Mixer PGAR Bypass Volume118 15INT1Left Line Mixer DACR1 Playback Volume118 16INT1Right Line Mixer PGAL Bypass Volume118 17INT1Right Line Mixer DACL1 Playback Volume118 18INT1Left HP Mixer PGAR Bypass Volume118 19INT1Left HP Mixer DACR1 Playback Volume100 20INT1Right HP Mixer PGAL Bypass Volume118 21INT1Right HP Mixer DACL1 Playback Volume100 22INT1Left HPCOM Mixer PGAR Bypass Volume118 23INT1Left HPCOM Mixer DACR1 Playback Volume118 24INT1Right HPCOM Mixer PGAL Bypass Volume118 25INT1Right HPCOM Mixer DACL1 Playback Volume 118 26INT2Line PGA Bypass Volume71 71 27INT2Line DAC Playback Volume71 71 28INT2HP PGA Bypass Volume71 71 29INT2HP DAC Playback Volume100 100 30INT2HPCOM PGA Bypass Volume71 71 31INT2HPCOM DAC Playback Volume71 71 32BOOL2Line Playback SwitchOn On 33BOOL2HP Playback SwitchOn On 34BOOL2HPCOM Playback SwitchOn On 35BOOL2AGC SwitchOff Off 36ENUM1Left AGC Target level-5.5dB 37ENUM1Right AGC Target level-5.5dB 38ENUM1Left AGC Attack time8ms 39ENUM1Right AGC Attack time8ms 40ENUM1Left AGC Decay time100ms 41ENUM1Right AGC Decay time100ms 42BOOL2De-emphasis SwitchOff Off 43INT2PGA Capture Volume32 32 44BOOL2PGA Capture SwitchOn On 45ENUM2ADC HPF Cut-offDisabled Disabled 46ENUM1Output Driver Power-On time0us 47ENUM1Output Driver Ramp-up step0ms 48ENUM1Left DAC MuxDAC_L1 49ENUM1Left HPCOM Muxdifferential of HPLOUT 50ENUM1Right DAC MuxDAC_R1 51ENUM1Right HPCOM Muxdifferential of HPROUT 52ENUM1Left Line1L Muxsingle-ended 53ENUM1Left Line1R Muxsingle-ended 54ENUM1Right Line1L Muxsingle-ended 55ENUM1Right Line1R Muxsingle-ended 56BOOL1Left PGA Mixer Line1L SwitchOn 57BOOL1Left PGA Mixer Line1R SwitchOff 58BOOL1Left PGA Mixer Line2L SwitchOff 59BOOL1Left PGA Mixer Mic3L SwitchOff 60BOOL1Left PGA Mixer Mic3R SwitchOff 61ENUM1Left Line2L Muxsingle-ended 62BOOL1Right PGA Mixer Line1R SwitchOn 63BOOL1Right PGA Mixer Line1L SwitchOff 64BOOL1Right PGA Mixer Line2R SwitchOff 65BOOL1Right PGA Mixer Mic3L SwitchOff 66BOOL1Right PGA Mixer Mic3R SwitchOff 67ENUM1Right Line2R Muxsingle-ended 68BOOL1Left Line Mixer PGAL Bypass SwitchOff 69BOOL1Left Line Mixer DACL1 SwitchOn 70BOOL1Left Line Mixer PGAR Bypass SwitchOff 71BOOL1Left Line Mixer DACR1 SwitchOff 72BOOL1Left Line Mixer Line2L Bypass SwitchOff 73BOOL1Left Line Mixer Line2R Bypass SwitchOff 74BOOL1Right Line Mixer PGAL Bypass SwitchOff 75BOOL1Right Line Mixer DACL1 SwitchOff 76BOOL1Right Line Mixer PGAR Bypass SwitchOff 77BOOL1Right Line Mixer DACR1 SwitchOn 78BOOL1Right Line Mixer Line2L Bypass SwitchOff 79BOOL1Right Line Mixer Line2R Bypass SwitchOff 80BOOL1Left HP Mixer PGAL Bypass SwitchOff 81BOOL1Left HP Mixer DACL1 SwitchOn 82BOOL1Left HP Mixer PGAR Bypass SwitchOff 83BOOL1Left HP Mixer DACR1 SwitchOn 84BOOL1Left HP Mixer Line2L Bypass SwitchOff 85BOOL1Left HP Mixer Line2R Bypass SwitchOff 86BOOL1Right HP Mixer PGAL Bypass SwitchOff 87BOOL1Right HP Mixer DACL1 SwitchOn 88BOOL1Right HP Mixer PGAR Bypass SwitchOff 89BOOL1Right HP Mixer DACR1 SwitchOn 90BOOL1Right HP Mixer Line2L Bypass SwitchOff 91BOOL1Right HP Mixer Line2R Bypass SwitchOff 92BOOL1Left HPCOM Mixer PGAL Bypass SwitchOff 93BOOL1Left HPCOM Mixer DACL1 SwitchOn 94BOOL1Left HPCOM Mixer PGAR Bypass SwitchOff 95BOOL1Left HPCOM Mixer DACR1 SwitchOff 96BOOL1Left HPCOM Mixer Line2L Bypass SwitchOff 97BOOL1Left HPCOM Mixer Line2R Bypass SwitchOff 98BOOL1Right HPCOM Mixer PGAL Bypass SwitchOff 99BOOL1Right HPCOM Mixer DACL1 SwitchOff 100BOOL1Right HPCOM Mixer PGAR Bypass SwitchOff 101BOOL1Right HPCOM Mixer DACR1 SwitchOn 102BOOL1Right HPCOM Mixer Line2L Bypass SwitchOff 103BOOL1Right HPCOM Mixer Line2R Bypass SwitchOff 104BOOL1Mono Mixer Line2L Bypass SwitchOff 105BOOL1Mono Mixer PGAL Bypass SwitchOff 106BOOL1Mono Mixer DACL1 SwitchOn 107BOOL1Mono Mixer Line2R Bypass SwitchOff 108BOOL1Mono Mixer PGAR Bypass SwitchOff 109BOOL1Mono Mixer DACR1 SwitchOn
user6596902：
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Kailyn Chen：
您好，电源上电时序没问题，上电时，需要hardware reset，保证所有寄存器都是默认值，等电压起来稳定之后，再将reset拉高。
不能通的，有没有读寄存器，看是否寄存器已经配置进去？
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user6596902：
我们目前没有接出reset，让硬件同事接出来试下；
寄存器可以确定是有写进去的
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Kailyn Chen：
您好，那很有可能是上电reset时序导致寄存器不能正确的读写。
合理的上电时序是，等所有电源达到它们的电压值之后，reset信号至少再保持低电平10ns然后将其拉高。 可以用示波器监测reset和电源电压的上电时序。 请验证。
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user6596902：
好的谢谢您，调整好reset脚后，声音都能正常通了。感谢
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Kailyn Chen：
很高兴您的问题得以解决，后续如果有什么问题，大家一起讨论。
