[参考译文] TLV320AIC3254-Q1：TLV320AIC3254-Q1：无 DOUT/MFP2输出

尊敬的 TI：  

您有更新吗？

非常感谢

Daniel、您好！

昨天是 TI 在美国的假期。 感谢您的耐心。

我看到 ADC 已通电并在您的寄存器映射中取消静音。 所有电源/I2S 时钟是否均已上电并提供给编解码器？

测量 DOUT 时、是否有任何数据切换或卡在低电平？

此致、
Jeff McPherson

尊敬的 TI：  

图1是编解码器上电序列

图2是  麦克风相关的直流电压

图3将  示波器测量的麦克风信号切换到交流模式

图4是麦克风信号与 I2S 信号

当对着麦克风讲话时、I2S 输出中没有信号变化！

图5是 I2S 的频率

此致、
CH Wen

尊敬的 CH Wen：

请尝试以下脚本、然后查看是否收到 ADC DOUT 的任何活动。 我还注意到有一个标记为 SCK 的时钟。 它是否连接到器件的 BCLK 引脚？

Assumption AVdd = 1.8V, DVdd = 1.8V MCLK = 12.288MHz Default settings used. PLL Disabled I2S
Interface with 16bit Word Length. AOSR 128 PRB_R1 PTM_R4
# Initialize to Page 0
w 30 00 00
# S/W Reset to initialize all registers
w 30 01 01
# Power up NADC divider with value 1
w 30 12 81
# Power up MADC divider with value 2
w 30 13 82
# Program OSR for ADC to 128
w 30 14 80
# Select ADC PRB_R1
w 30 3d 01
# Select Page 1
w 30 00 01
# Disable Internal Crude AVdd in presence of external AVdd supply or before
# powering up internal AVdd LDO
w 30 01 08
# Enable Master Analog Power Control
w 30 02 00
# Set the input common mode to 0.9V
w 30 0a 00
# Select ADC PTM_R4
w 30 3d 00
# Set MicPGA startup delay to 3.1ms
w 30 47 32
# Set the REF charging time to 40ms
w 30 7b 01
# Route IN1L to LEFT_P with 20K input impedance
w 30 34 80
# Route Common Mode to LEFT_M with impedance of 20K
w 30 36 80
# Route IN1R to RIGHT_P with input impedance of 20K
w 30 37 80
# Route Common Mode to RIGHT_M with impedance of 20K
w 30 39 80
# Unmute Left MICPGA, Gain selection of 6dB to make channel gain 0dB
# Register of 6dB with input impedance of 20K => Channel Gain of 0dB
w 30 3b 0c
# Unmute Right MICPGA, Gain selection of 6dB to make channel gain 0dB
# Register of 6dB with input impedance of 20K => Channel Gain of 0dB
w 30 3c 0c
# Select Page 0
w 30 00 00
# Power up Left and Right ADC Channels
w 30 51 c0
# Unmute Left and Right ADC Digital Volume Control.
w 30 52 00

此致、
Jeff McPherson

尊敬的 Jeff

基于 reg dump、一个寄存器是什么差异？  

哪个寄存器错误？

我们使用 Linux 平台、

如何 修改驱动程序以配置这些寄存器？

或如何通过 i2cset 工具进行配置？

非常感谢

尊敬的 TI：  

它是 BCLK。

此致、
CH Wen

尊敬的 Jeff：

设置脚本后、I2S_DOUT 具有信号输出、但 MICBIAS 将变为0.02V。

如果我们不使用此脚本、可以测得电压为2.2V。

您好！

 脚本中的时钟树不同。 这不是单个寄存器问题。

脚本缺少启用的 MICBIAS。 要启用 MICBIAS、请在第23行之后添加此行：W 30 33 60

我会将该请求单移至我们的软件团队、以帮助您编辑驱动程序。

此致、
Jeff McPherson

尊敬的 Jeff

我们执行以下配置、

偏倚仍然不起作用、您有什么评论吗？

非常感谢

i2cset -fy 2 0x18 0x00 0x00 b
i2cset -fy 2 0x18 0x01 0x01 b
i2cset -fy 2 0x18 0x12 0x81 b
i2cset -fy 2 0x18 0x13 0x82 b
i2cset -fy 2 0x18 0x14 0x80 b
i2cset -fy 2 0x18 0x3d 0x01 b
i2cset -fy 2 0x18 0x00 0x01 b
i2cset -fy 2 0x18 0x01 0x08 b
i2cset -fy 2 0x18 0x02 0x00 b
i2cset -fy 2 0x18 0x0a 0x00 b
i2cset -fy 2 0x18 0x33  0x60 b
i2cset -fy 2 0x18 0x3d 0x00 b
i2cset -fy 2 0x18 0x47 0x32 b
i2cset -fy 2 0x18 0x7b 0x01 b
i2cset -fy 2 0x18 0x34 0x80 b
i2cset -fy 2 0x18 0x36 0x80 b
i2cset -fy 2 0x18 0x37 0x80 b
i2cset -fy 2 0x18 0x39 0x80 b
i2cset -fy 2 0x18 0x3b 0x0c b
i2cset -fy 2 0x18 0x3c 0x0c b
i2cset -fy 2 0x18 0x00 0x00 b
i2cset -fy 2 0x18 0x51 0xc0 b
i2cset -fy 2 0x18 0x52 0x00 b

尊敬的 Jeff

您或您的软件团队是否有任何更新？

非常感谢

您能告诉我您使用了哪种代码吗？

尊敬的丁

您可以从以下链接获取代码
https://drive.google.com/file/d/1oKfScjjOfpO01DXnulHqVuiv7o8t-tIs/view?usp=sharing

 您的成员 Lu、Kevin 有一些修改。

Jeff 提供的寄存器设置无法正常工作、对吧？  

尊敬的丁

 Jeff 可使 I2S Tx 具有信号、但偏置将会接近
我们不能再次打开偏置

该寄存器是 Jeff 提供的。

AIC3254是保存模式

尊敬的丁

DP 您有更新吗？

Daniel、您好！

请在录音后提供寄存器转储。

/ # i2cdump -fy 2 0x18
No size specified (using byte-data access)
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-2, address 0x18, mode byte
Continue? [Y/n] y
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 00 60 00 07 92 20 00 00 00 00 88 82 00 80 02    ..`.?? ....??.??
10: 00 08 88 82 80 01 00 04 00 00 01 00 00 01 84 00    .?????.?..?..??.
20: 00 00 00 00 cc 00 00 00 00 00 00 00 00 00 00 00    ....?...........
30: 00 00 00 00 08 12 03 02 04 00 00 00 01 01 00 14    ....?????...??.?
40: 0c d8 d8 00 6f 38 00 00 00 00 00 ee 10 d8 7e e3    ???.o8.....???~?
50: 00 c0 88 00 00 00 00 00 7f 00 00 00 00 00 00 00    .??.....?.......
60: 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ?...............
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

根据页0、寄存器0x52应为0x00、0x88表示 ADC 静音、您可以在使用之前的 amixer 设置进行录制后输入以下命令。

#i2cset -FY 0 0x18 0x52 0x00 b #撤消 ADC 通道的静音

#i2cset -FY 0 0x18 0x53 0x28 b #20dB 音量增益

#i2cset -FY 0 0x18 0x00 0x01 b

#i2cset -FY 0 0x18 0x3b 0x10 b

#i2cset -FY 0 0x18 0x00 0x00 b  

请共享 寄存器转储(如果它不起作用)

谢谢

尊敬的 Kevin Ding：

请在 Ding 寄存器脚本之后检查寄存器转储

非常感谢

/ # i2cset -fy 2 0x18 0x00 0x00 b
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will write to device file /dev/i2c-2, chip address 0x18, data address
0x00, data 0x00, mode byte.
Continue? [Y/n] Y
/ # i2cdump -fy 2 0x18
No size specified (using byte-data access)
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-2, address 0x18, mode byte
Continue? [Y/n] Y
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 00 60 00 00 11 04 00 00 00 00 01 01 00 80 02    ..`..??....??.??
10: 00 08 81 82 80 01 00 04 00 00 01 00 00 00 01 00    .?????.?..?...?.
20: 00 00 00 00 cc 00 00 00 00 00 00 00 c0 00 80 00    ....?.......?.?.
30: 00 00 00 00 00 12 03 02 02 00 00 00 01 01 00 14    .....????...??.?
40: 0c 00 00 00 6f 38 00 00 00 00 00 ee 10 d8 7e e3    ?...o8.....???~?
50: 00 c0 00 00 00 00 00 00 7f 00 00 00 00 00 00 00    .?......?.......
60: 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ?...............
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
/ # i2cset -fy 2 0x18 0x00 0x01 b
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will write to device file /dev/i2c-2, chip address 0x18, data address
0x00, data 0x01, mode byte.
Continue? [Y/n] Y
/ # i2cdump -fy 2 0x18
No size specified (using byte-data access)
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-2, address 0x18, mode byte
Continue? [Y/n] Y
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 01 08 00 00 00 00 00 00 00 00 00 10 00 00 00 00    ??.........?....
10: 40 40 40 40 00 00 00 00 00 00 00 00 00 00 00 00    @@@@............
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
30: 00 00 00 60 80 00 80 80 00 80 00 0c 0c 00 03 00    ...`?.??.?.??.?.
40: 00 00 00 00 00 00 00 32 00 00 00 00 00 00 00 00    .......2........
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
70: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00    ...........?....
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

尊敬的 Kevin

下面的转储是在寄存器写入之后

/ # i2cset -fy 2 0x18 0x00 0x00 b
/ # i2cdump -fy 2 0x18
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 00 60 00 07 12 20 00 00 00 00 08 02 00 80 02    ..`.?? ....??.??
10: 00 08 08 02 80 01 00 04 00 00 01 00 00 01 04 00    .?????.?..?..??.
20: 00 00 00 00 cc 00 00 00 00 00 00 00 00 00 00 00    ....?...........
30: 00 00 00 00 08 12 03 02 04 00 00 00 01 01 00 14    ....?????...??.?
40: 0c d8 d8 00 6f 38 00 00 00 00 00 ee 10 d8 7e e3    ???.o8.....???~?
50: 00 00 88 28 00 00 00 00 7f 00 00 00 00 00 00 00    ..?(....?.......
60: 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ?...............
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
/ # i2cset -fy 2 0x18 0x00 0x01 b
/ # i2cdump -fy 2 0x18
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 01 00 01 00 00 00 00 00 00 00 00 10 00 00 00 00    ?.?........?....
10: 40 40 40 40 00 00 00 00 00 00 00 00 00 00 00 00    @@@@............
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
30: 00 00 00 00 40 00 40 40 00 40 00 10 00 00 00 00    ....@.@@.@.?....
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
70: 00 00 00 00 00 00 00 00 00 00 00 05 00 00 00 00    ...........?....
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

Daniel、您好！

我建议您将 reg0x52设置为0x00、并且不将寄存器0x51更改为0x00、为什么仍然不正确？

Kevin

尊敬的 Kevin：  

我可能没有更改第0页
 我应该 先使用 Jeff 的脚本吗？

非常感谢

没有必要、您可以先尝试我的建议

尊敬的 Kevin：  
请检查以下寄存器转储
但是、在我开始采集数据后、偏置变为0

/ # i2cset -fy 2 0x18 0x00 0x00 b
/ # i2cset -fy 2 0x18 0x52 0x00 b
/ # i2cset -fy 2 0x18 0x53 0x28 b
/ # i2cset -fy 2 0x18 0x00 0x01 b
/ # i2cset -fy 2 0x18 0x3b 0x10 b
/ # i2cset -fy 2 0x18 0x00 0x00 b
/ #
/ #
/ #
/ # i2cdump -fy 2 0x18
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 00 60 00 07 92 20 00 00 00 00 88 82 00 80 02    ..`.?? ....??.??
10: 00 08 88 82 80 01 00 04 00 00 01 00 00 01 84 00    .?????.?..?..??.
20: 00 00 00 00 44 00 00 00 00 00 00 00 00 00 00 00    ....D...........
30: 00 00 00 00 08 12 03 02 04 00 00 00 01 01 00 14    ....?????...??.?
40: 0c d8 d8 00 6f 38 00 00 00 00 00 ee 10 d8 7e e3    ???.o8.....???~?
50: 00 c0 00 28 00 00 00 00 7f 00 00 00 00 00 00 00    .?.(....?.......
60: 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ?...............
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

首先、您应该开始捕获数据、然后执行这些命令、因为手动设置将更改驱动程序进程。

尊敬的 Kevin

目前、声音可以录制。

开始捕获后、我需要再次键入 amixer 命令。

并键入以下两个命令

i2cset -FY 2 0x18 0x00 0x00 b

i2cset -FY 2 0x18 0x52 0x00 b

完成此操作后、I2S Tx 即可输出数据、

非常感谢您的大力帮助

现在、我如何将"i2cset -FY 2 0x18 0x52 0x00 b"集成到驱动程序中？

谢谢你  

下面是我使用的错误

amixer -c0 cset name='ADCFGA Left Mute Switch' On
amixer -c0 cset name='ADCFGA 右侧静音开关'开
amixer -c0 cset name="IC PGA Switch" on、on

amixer -c0 cset name='IN1_L to Left Mixer Positive Resistor' 1.
amixer -c0 cset name='IN1_R to right Mixer Positive Resistor' 1.

amixer -c0 cset name='CM_L 至左混频器负电阻器' 1.
amixer -c0 cset name='CM_R to right Mixer 负电阻器' 1.

我是否错过了这两个？

• "ADC Level Volume"=> Value
• "PGA 水平音量"=>值

即使我更改这两个值、 0x52也不会更改

谢谢你

您还需要选择电阻器：

• "IN1_R 到左混频器正电阻器"=>"10k Ω"
• "IN1_R 到右混频器正电阻器"=>"10k Ω"

音量控制是可选的、除非您需要更大的记录数据。