• 状态 Resolved
  • 已锁定 已锁定
  • 回复 19 回复
  • 订户 0 订户
  • 视图 2982 视图
  • 用户 0 会员在此处
选项
选项
相关

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

[参考译文] TLV320ADC6120：音频ADC SDOUT。 不确定我是否从ADC获得了正确的数据。

admin
Guru**** 2386340 points
Other Parts Discussed in Thread: TLV320ADC6120
请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1095515/tlv320adc6120-audio-adc-sdout-not-sure-if-i-am-getting-the-correct-data-from-the-adc

部件号：TLV320ADC6120

尊敬的TI论坛：

我正在使用一个“TLV320ADC6120”，我正在尝试保存从中接收到的数据。

请检查下面的ADC配置：

-配置为主中继器，带外部振荡器(24.576 MHz)

- BCLK = 12.288 MHz//  FSYNC = 384 kHz

-两个信道的TDM配置和单端。

－2个通道(立体声)和16位/通道。 32个BCLK时钟，每个FSYNC脉冲。

根据示波器，我可以看到配置正确(BCLK，FSYNC，脉冲数等)，但是， 由于我以前没有使用过音频ADC，我真的不了解我收到的数据，这就是为什么我不确定它是否正确的原因。 请参阅以下情况：

我正在尝试在 接收到的数据中看到正弦波，这些数据是我在ADC输入处生成的(1Vpk-pk，频率低于384kHz/2)。 但我看不到它(或者可能我无法理解接收到的数据)，某处出现了问题，或者我可能不理解 ADC的工作方式。

-示例：在极低频正弦波(1 Hz)和示波器的SDOUT中进行分析。 我可以看到数据是如何工作的。 请参阅以下示例。

SDOUT vs What I expected

我知道来自ADC的数据应该为每个通道都有16位签名(PCM)，但我仍然无法理解接收到的数据。

请参阅另一个示例：

-通道1的输入信号：正弦波，1Vpk-pk，20 kHz (近似值)

-通道2已禁用，因此我收到“右侧通道”的零(以使该过程更容易)

—保存8个缓冲区(512字节/缓冲区)的数据(4096字节-> 2048字节/通道)。 整个样本的时间=(1/384kHz)*(4096 / 4个保存的字节/Fsync)

= 整个样本的2.67 ms (近似值)。

- SDOUT：每个Fsync时钟4个字节，另存为 Little Endian和16位带符号数据。

请在下面查找一些范围捕获：

(全视图：2.67ms，光标)

(放大1)

(放大2)

这是接收到4096字节的原始数据示例(Ch1：16位已签名，Little Endian / Ch2：已禁用(0x0000已接收)/采样频率384 kHz) 

CB 0F 00 00 D9 0F 00 00 E7 0F 00 00 F3 0F 00 00 E7 0F 00 00 F3 0F 00 00 03 00 00 00 F3 0F 00 00 03 00 00 00 10 00 00 00 1D 00 00 00 10 00 00 00 1D 00 00 00 2B 00 00 00 38 00 00 00 2B 00 00 00 38 00 00 00 47 00 00 00 38 00 00 00 47 00 00 00 54 00 00 00 61 00 00 00 54 00 00 00 61 00 00 00 6F 00 00 00 7C 00 00 00 6F 00 00 00 7C 00 00 00 89 00 00 00 7C 00 00 00 89 00 00 00 97 00 00 00 A4 00 00 00 97 00 00 00 A4 00 00 00 B1 00 00 00 BD 00 00 00 B1 00 00 00 BD 00 00 00 D8 00 00 00 BD 00 00 00 D8 00 00 00 D0 00 00 00 28 01 00 00 D0 00 00 00 28 01 00 00 AE 02 00 00 FA 02 00 00 AE 02 00 00 FA 02 00 00 EC 02 00 00 FA 02 00 00 EC 02 00 00 FC 02 00 00 FF 02 00 00 FC 02 00 00 FF 02 00 00 03 03 00 00 07 03 00 00 03 03 00 00 07 03 00 00 0A 03 00 00 07 03 00 00 0A 03 00 00 0E 03 00 00 10 03 00 00 0E 03 00 00 10 03 00 00 13 03 00 00 16 03 00 00 13 03 00 00 16 03 00 00 17 03 00 00 16 03 00 00 17 03 00 00 19 03 00 00 1D 03 00 00 19 03 00 00 1D 03 00 00 1D 03 00 00 1E 03 00 00 1D 03 00 00 1E 03 00 00 20 03 00 00 1E 03 00 00 20 03 00 00 21 03 00 00 22 03 00 00 21 03 00 00 22 03 00 00 23 03 00 00 23 03 00 00 23 03 00 00 23 03 00 00 24 03 00 00 23 03 00 00 24 03 00 00 24 03 00 00 24 03 00 00 24 03 00 00 24 03 00 00 24 03 00 00 23 03 00 00 24 03 00 00 23 03 00 00 24 03 00 00 23 03 00 00 24 03 00 00 24 03 00 00 23 03 00 00 24 03 00 00 23 03 00 00 23 03 00 00 21 03 00 00 23 03 00 00 21 03 00 00 20 03 00 00 21 03 00 00 20 03 00 00 23 03 00 00 22 03 00 00 23 03 00 00 22 03 00 00 1C 03 00 00 19 03 00 00 1C 03 00 00 19 03 00 00 11 03 00 00 19 03 00 00 11 03 00 00 18 03 00 00 EC 02 00 00 18 03 00 00 EC 02 00 00 09 02 00 00 CF 01 00 00 09 02 00 00 CF 01 00 00 D1 01 00 00 CF 01 00 00 D1 01 00 00 BB 01 00 00 B0 01 00 00 BB 01 00 00 B0 01 00 00 A4 01 00 00 96 01 00 00 A4 01 00 00 96 01 00 00 8A 01 00 00 96 01 00 00 8A 01 00 00 7E 01 00 00 70 01 00 00 7E 01 00 00 70 01 00 00 63 01 00 00 57 01 00 00 63 01 00 00 57 01 00 00 4A 01 00 00 57 01 00 00 4A 01 00 00 3D 01 00 00 30 01 00 00 3D 01 00 00 30 01 00 00 22 01 00 00 15 01 00 00 22 01 00 00 15 01 00 00 08 01 00 00 15 01 00 00 08 01 00 00 FA 00 00 00 ED 00 00 00 FA 00 00 00 ED 00 00 00 E0 00 00 00 D2 00 00 00 E0 00 00 00 D2 00 00 00 C5 00 00 00 D2 00 00 00 C5 00 00 00 B7 00 00 00 AA 00 00 00 B7 00 00 00 AA 00 00 00 9C 00 00 00 8E 00 00 00 9C 00 00 00 8E 00 00 00 80 00 00 00 8E 00 00 00 80 00 00 00 73 00 00 00 65 00 00 00 73 00 00 00 65 00 00 00 58 00 00 00 49 00 00 00 58 00 00 00 49 00 00 00 3C 00 00 00 49 00 00 00 3C 00 00 00 2F 00 00 00 21 00 00 00 2F 00 00 00 21 00 00 00 13 00 00 00 06 00 00 00 13 00 00 00 06 00 00 00 EA 0F 00 00 06 00 00 00 EA 0F 00 00 F4 0F 00 00 92 0F 00 00 F4 0F 00 00 92 0F 00 00 D0 0D 00 00 78 0D 00 00 D0 0D 00 00 78 0D 00 00 86 0D 00 00 78 0D 00 00 86 0D 00 00 72 0D 00 00 6D 0D 00 00 72 0D 00 00 6D 0D 00 00 67 0D 00 00 61 0D 00 00 67 0D 00 00 61 0D 00 00 5D 0D 00 00 61 0D 00 00 5D 0D 00 00 57 0D 00 00 53 0D 00 00 57 0D 00 00 53 0D 00 00 4E 0D 00 00 4A 0D 00 00 4E 0D 00 00 4A 0D 00 00 46 0D 00 00 4A 0D 00 00 46 0D 00 00 42 0D 00 00 40 0D 00 00 42 0D 00 00 40 0D 00 00 3C 0D 00 00 39 0D 00 00 3C 0D 00 00 39 0D 00 00 36 0D 00 00 39 0D 00 00 36 0D 00 00 32 0D 00 00 31 0D 00 00 32 0D 00 00 31 0D 00 00 2F 0D 00 00 2C 0D 00 00 2F 0D 00 00 2C 0D 00 00 2A 0D 00 00 2C 0D 00 00 2A 0D 00 00 29 0D 00 00 27 0D 00 00 29 0D 00 00 27 0D 00 00 26 0D 00 00 25 0D 00 00 26 0D 00 00 25 0D 00 00 23 0D 00 00 25 0D 00 00 23 0D 00 00 22 0D 00 00 22 0D 00 00 22 0D 00 00 22 0D 00 00 20 0D 00 00 21 0D 00 00 20 0D 00 00 21 0D 00 00 20 0D 00 00 21 0D 00 00 20 0D 00 00 1E 0D 00 00 20 0D 00 00 1E 0D 00 00 20 0D 00 00 1E 0D 00 00 1E 0D 00 00 1E 0D 00 00 1E 0D 00 00 20 0D 00 00 1E 0D 00 00 20 0D 00 00 1D 0D 00 00 27 0D 00 00 1D 0D 00 00 27 0D 00 00 65 0D 00 00 79 0D 00 00 65 0D 00 00 79 0D 00 00 7B 0D 00 00 79 0D 00 00 7B 0D 00 00 85 0D 00 00 8D 0D 00 00 85 0D 00 00 8D 0D 00 00 94 0D 00 00 9C 0D 00 00 94 0D 00 00 9C 0D 00 00 A5 0D 00 00 9C 0D 00 00 A5 0D 00 00 AD 0D 00 00 B5 0D 00 00 AD 0D 00 00 B5 0D 00 00 BE 0D 00 00 C8 0D 00 00 BE 0D 00 00 C8 0D 00 00 D1 0D 00 00 C8 0D 00 00 D1 0D 00 00 DA 0D 00 00 E5 0D 00 00 DA 0D 00 00 E5 0D 00 00 EF 0D 00 00 F9 0D 00 00 EF 0D 00 00 F9 0D 00 00 04 0E 00 00 F9 0D 00 00 04 0E 00 00 0F 0E 00 00 1A 0E 00 00 0F 0E 00 00 1A 0E 00 00 26 0E 00 00 31 0E 00 00 26 0E 00 00 31 0E 00 00 3D 0E 00 00 31 0E 00 00 3D 0E 00 00 4A 0E 00 00 56 0E 00 00 4A 0E 00 00 56 0E 00 00 61 0E 00 00 6E 0E 00 00 61 0E 00 00 6E 0E 00 00 7B 0E 00 00 6E 0E 00 00 7B 0E 00 00 88 0E 00 00 95 0E 00 00 88 0E 00 00 95 0E 00 00 A3 0E 00 00 B0 0E 00 00 A3 0E 00 00 B0 0E 00 00 BB 0E 00 00 B0 0E 00 00 BB 0E 00 00 CA 0E 00 00 D7 0E 00 00 CA 0E 00 00 D7 0E 00 00 E4 0E 00 00 F1 0E 00 00 E4 0E 00 00 F1 0E 00 00 0E 0F 00 00 F1 0E 00 00 0E 0F 00 00 03 0F 00 00 6B 0F 00 00 03 0F 00 00 6B 0F 00 00 59 01 00 00 BE 01 00 00 59 01 00 00 BE 01 00 00 B1 01 00 00 BE 01 00 00 B1 01 00 00 CC 01 00 00 D6 01 00 00 CC 01 00 00 D6 01 00 00 E1 01 00 00 EC 01 00 00 E1 01 00 00 EC 01 00 00 F8 01 00 00 EC 01 00 00 F8 01 00 00 01 02 00 00 0B 02 00 00 01 02 00 00 0B 02 00 00 16 02 00 00 22 02 00 00 16 02 00 00 22 02 00 00 2B 02 00 00 22 02 00 00 2B 02 00 00 34 02 00 00 3F 02 00 00 34 02 00 00 3F 02 00 00 48 02 00 00 50 02 00 00 48 02 00 00 50 02 00 00 5B 02 00 00 50 02 00 00 5B 02 00 00 63 02 00 00 6C 02 00 00 63 02 00 00 6C 02 00 00 74 02 00 00 7C 02 00 00 74 02 00 00 7C 02 00 00 84 02 00 00 7C 02 00 00 84 02 00 00 8D 02 00 00 94 02 00 00 8D 02 00 00 94 02 00 00 9B 02 00 00 A4 02 00 00 9B 02 00 00 A4 02 00 00 AA 02 00 00 A4 02 00 00 AA 02 00 00 B1 02 00 00 B8 02 00 00 B1 02 00 00 B8 02 00 00 BE 02 00 00 C3 02 00 00 BE 02 00 00 C3 02 00 00 CA 02 00 00 C3 02 00 00 CA 02 00 00 CF 02 00 00 D4 02 00 00 CF 02 00 00 D4 02 00 00 DA 02 00 00 DE 02 00 00 DA 02 00 00 DE 02 00 00 E3 02 00 00 DE 02 00 00 E3 02 00 00 E6 02 00 00 EE 02 00 00 E6 02 00 00 EE 02 00 00 01 03 00 00 FD 02 00 00 01 03 00 00 FD 02 00 00 F7 02 00 00 FD 02 00 00 F7 02 00 00 F2 02 00 00 EC 02 00 00 F2 02 00 00 EC 02 00 00 E6 02 00 00 E0 02 00 00 E6 02 00 00 E0 02 00 00 D8 02 00 00 E0 02 00 00 D8 02 00 00 D2 02 00 00 CB 02 00 00 D2 02 00 00 CB 02 00 00 C4 02 00 00 BC 02 00 00 C4 02 00 00 BC 02 00 00 B6 02 00 00 BC 02 00 00 B6 02 00 00 AE 02 00 00 A6 02 00 00 AE 02 00 00 A6 02 00 00 9D 02 00 00 93 02 00 00 9D 02 00 00 93 02 00 00 8B 02 00 00 93 02 00 00 8B 02 00 00 83 02 00 00 79 02 00 00 83 02 00 00 79 02 00 00 70 02 00 00 66 02 00 00 70 02 00 00 66 02 00 00 5C 02 00 00 66 02 00 00 5C 02 00 00 52 02 00 00 48 02 00 00 52 02 00 00 48 02 00 00 3D 02 00 00 32 02 00 00 3D 02 00 00 32 02 00 00 28 02 00 00 32 02 00 00 28 02 00 00 1D 02 00 00 12 02 00 00 1D 02 00 00 12 02 00 00 07 02 00 00 FB 01 00 00 07 02 00 00 FB 01 00 00 EF 01 00 00 FB 01 00 00 EF 01 00 00 E5 01 00 00 D9 01 00 00 E5 01 00 00 D9 01 00 00 CC 01 00 00 C2 01 00 00 CC 01 00 00 C2 01 00 00 A6 01 00 00 C2 01 00 00 A6 01 00 00 B2 01 00 00 4B 01 00 00 B2 01 00 00 4B 01 00 00 64 0F 00 00 FE 0E 00 00 64 0F 00 00 FE 0E 00 00 08 0F 00 00 FE 0E 00 00 08 0F 00 00 ED 0E 00 00 E1 0E 00 00 ED 0E 00 00 E1 0E 00 00 D4 0E 00 00 C7 0E 00 00 D4 0E 00 00 C7 0E 00 00 BB 0E 00 00 C7 0E 00 00 BB 0E 00 00 AE 0E 00 00 A2 0E 00 00 AE 0E 00 00 A2 0E 00 00 95 0E 00 00 89 0E 00 00 95 0E 00 00 89 0E 00 00 7D 0E 00 00 89 0E 00 00 7D 0E 00 00 70 0E 00 00 65 0E 00 00 70 0E 00 00 65 0E 00 00 59 0E 00 00 4D 0E 00 00 59 0E 00 00 4D 0E 00 00 41 0E 00 00 4D 0E 00 00 41 0E 00 00 36 0E 00 00 2B 0E 00 00 36 0E 00 00 2B 0E 00 00 20 0E 00 00 15 0E 00 00 20 0E 00 00 15 0E 00 00 0A 0E 00 00 15 0E 00 00 0A 0E 00 00 00 0E 00 00 F6 0D 00 00 00 0E 00 00 F6 0D 00 00 EC 0D 00 00 E2 0D 00 00 EC 0D 00 00 E2 0D 00 00 DA 0D 00 00 E2 0D 00 00 DA 0D 00 00 D0 0D 00 00 C7 0D 00 00 D0 0D 00 00 C7 0D 00 00 BE 0D 00 00 B6 0D 00 00 BE 0D 00 00 B6 0D 00 00 AE 0D 00 00 B6 0D 00 00 AE 0D 00 00 A7 0D 00 00 9F 0D 00 00 A7 0D 00 00 9F 0D 00 00 99 0D 00 00 92 0D 00 00 99 0D 00 00 92 0D 00 00 87 0D 00 00 92 0D 00 00 87 0D 00 00 86 0D 00 00 6F 0D 00 00 86 0D 00 00 6F 0D 00 00 16 0D 00 00 08 0D 00 00 16 0D 00 00 08 0D 00 00 0E 0D 00 00 08 0D 00 00 0E 0D 00 00 0E 0D 00 00 10 0D 00 00 0E 0D 00 00 10 0D 00 00 11 0D 00 00 14 0D 00 00 11 0D 00 00 14 0D 00 00 17 0D 00 00 14 0D 00 00 17 0D 00 00 18 0D 00 00 1A 0D 00 00 18 0D 00 00 1A 0D 00 00 1E 0D 00 00 20 0D 00 00 1E 0D 00 00 20 0D 00 00 22 0D 00 00 20 0D 00 00 22 0D 00 00 25 0D 00 00 28 0D 00 00 25 0D 00 00 28 0D 00 00 2A 0D 00 00 2E 0D 00 00 2A 0D 00 00 2E 0D 00 00 31 0D 00 00 2E 0D 00 00 31 0D 00 00 34 0D 00 00 38 0D 00 00 34 0D 00 00 38 0D 00 00 3C 0D 00 00 3F 0D 00 00 3C 0D 00 00 3F 0D 00 00 43 0D 00 00 3F 0D 00 00 43 0D 00 00 48 0D 00 00 4C 0D 00 00 48 0D 00 00 4C 0D 00 00 50 0D 00 00 56 0D 00 00 50 0D 00 00 56 0D 00 00 59 0D 00 00 56 0D 00 00 59 0D 00 00 5E 0D 00 00 64 0D 00 00 5E 0D 00 00 64 0D 00 00 69 0D 00 00 70 0D 00 00 69 0D 00 00 70 0D 00 00 74 0D 00 00 70 0D 00 00 74 0D 00 00 7A 0D 00 00 82 0D 00 00 7A 0D 00 00 82 0D 00 00 88 0D 00 00 8E 0D 00 00 88 0D 00 00 8E 0D 00 00 A2 0D 00 00 8E 0D 00 00 A2 0D 00 00 94 0D 00 00 EB 0D 00 00 94 0D 00 00 EB 0D 00 00 95 0F 00 00 F2 0F 00 00 95 0F 00 00 F2 0F 00 00 E8 0F 00 00 F2 0F 00 00 E8 0F 00 00 05 00 00 00 13 00 00 00 05 00 00 00 13 00 00 00 20 00 00 00 2D 00 00 00 20 00 00 00 2D 00 00 00 3B 00 00 00 2D 00 00 00 3B 00 00 00 48 00 00 00 56 00 00 00 48 00 00 00 56 00 00 00 64 00 00 00 70 00 00 00 64 00 00 00 70 00 00 00 7E 00 00 00 70 00 00 00 7E 00 00 00 8B 00 00 00 99 00 00 00 8B 00 00 00 99 00 00 00 A5 00 00 00 B3 00 00 00 A5 00 00 00 B3 00 00 00 C1 00 00 00 B3 00 00 00 C1 00 00 00 CD 00 00 00 DB 00 00 00 CD 00 00 00 DB 00 00 00 E8 00 00 00 F5 00 00 00 E8 00 00 00 F5 00 00 00 02 01 00 00 F5 00 00 00 02 01 00 00 0E 01 00 00 1B 01 00 00 0E 01 00 00 1B 01 00 00 27 01 00 00 35 01 00 00 27 01 00 00 35 01 00 00 41 01 00 00 35 01 00 00 41 01 00 00 4D 01 00 00 59 01 00 00 4D 01 00 00 59 01 00 00 66 01 00 00 72 01 00 00 66 01 00 00 72 01 00 00 7E 01 00 00 72 01 00 00 7E 01 00 00 8A 01 00 00 95 01 00 00 8A 01 00 00 95 01 00 00 A1 01 00 00 AC 01 00 00 A1 01 00 00 AC 01 00 00 C1 01 00 00 AC 01 00 00 C1 01 00 00 BD 01 00 00 FB 01 00 00 BD 01 00 00 FB 01 00 00 06 03 00 00 37 03 00 00 06 03 00 00 37 03 00 00 2C 03 00 00 37 03 00 00 2C 03 00 00 33 03 00 00 33 03 00 00 33 03 00 00 33 03 00 00 33 03 00 00 34 03 00 00 33 03 00 00 34 03 00 00 32 03 00 00 34 03 00 00 32 03 00 00 32 03 00 00 32 03 00 00 32 03 00 00 32 03 00 00 32 03 00 00 32 03 00 00 32 03 00 00 32 03 00 00 31 03 00 00 32 03 00 00 31 03 00 00 30 03 00 00 31 03 00 00 30 03 00 00 31 03 00 00 32 03 00 00 2C 03 00 00 32 03 00 00 2C 03 00 00 27 03 00 00 2C 03 00 00 27 03 00 00 25 03 00 00 22 03 00 00 25 03 00 00 22 03 00 00 20 03 00 00 1D 03 00 00 20 03 00 00 1D 03 00 00 1A 03 00 00 1D 03 00 00 1A 03 00 00 16 03 00 00 14 03 00 00 16 03 00 00 14 03 00 00 12 03 00 00 0F 03 00 00 12 03 00 00 0F 03 00 00 0B 03 00 00 0F 03 00 00 0B 03 00 00 06 03 00 00 03 03 00 00 06 03 00 00 03 03 00 00 00 03 00 00 FB 02 00 00 00 03 00 00 FB 02 00 00 F7 02 00 00 FB 02 00 00 F7 02 00 00 F3 02 00 00 ED 02 00 00 F3 02 00 00 ED 02 00 00 E8 02 00 00 E4 02 00 00 E8 02 00 00 E4 02 00 00 D3 02 00 00 E4 02 00 00 D3 02 00 00 DF 02 00 00 98 02 00 00 DF 02 00 00 98 02 00 00 2C 01 00 00 DA 00 00 00 2C 01 00 00 DA 00 00 00 E1 00 00 00 DA 00 00 00 E1 00 00 00 C6 00 00 00 B9 00 00 00 C6 00 00 00 B9 00 00 00 AC 00 00 00 9F 00 00 00 AC 00 00 00 9F 00 00 00 91 00 00 00 9F 00 00 00 91 00 00 00 83 00 00 00 76 00 00 00 83 00 00 00 76 00 00 00 68 00 00 00 5A 00 00 00 68 00 00 00 5A 00 00 00 4D 00 00 00 5A 00 00 00 4D 00 00 00 3F 00 00 00 31 00 00 00 3F 00 00 00 31 00 00 00 23 00 00 00 16 00 00 00 23 00 00 00 16 00 00 00 08 00 00 00 16 00 00 00 08 00 00 00 FA 0F 00 00 ED 0F 00 00 FA 0F 00 00 ED 0F 00 00 DF 0F 00 00 D1 0F 00 00 DF 0F 00 00 D1 0F 00 00 C4 0F 00 00 D1 0F 00 00 C4 0F 00 00 B6 0F 00 00 A9 0F 00 00 B6 0F 00 00 A9 0F 00 00 9B 0F 00 00 8E 0F 00 00 9B 0F 00 00 8E 0F 00 00 81 0F 00 00 8E 0F 00 00 81 0F 00 00 73 0F 00 00 66 0F 00 00 73 0F 00 00 66 0F 00 00 59 0F 00 00 4A 0F 00 00 59 0F 00 00 4A 0F 00 00 3E 0F 00 00 4A 0F 00 00 3E 0F 00 00 31 0F 00 00 23 0F 00 00 31 0F 00 00 23 0F 00 00 17 0F 00 00 0A 0F 00 00 17 0F 00 00 0A 0F 00 00 F0 0E 00 00 0A 0F 00 00 F0 0E 00 00 F7 0E 00 00 AA 0E 00 00 F7 0E 00 00 AA 0E 00 00 5C 0D 00 00 1A 0D 00 00 5C 0D 00 00 1A 0D 00 00 29 0D 00 00 1A 0D 00 00 29 0D 00 00 1D 0D 00 00 1B 0D 00 00 1D 0D 00 00

 收到的原始数据的另一个示例  ，但根据网页<soundfile.sapp.org/.../>生成了标题。 这是44字节(报头)+ 4096字节(小端字节数据) 

52 49 46 46 24 10 00 00 57 41 56 45 66 6D 74 20 10 00 00 00 01 00 02 00 00 DC 05 00 00 70 17 00 04 00 10 00 64 61 74 61 00 10 00 00 84 0E 00 00 91 0E 00 00 9E 0E 00 00 91 0E 00 00 9E 0E 00 00 AC 0E 00 00 B9 0E 00 00 AC 0E 00 00 B9 0E 00 00 C6 0E 00 00 D3 0E 00 00 C6 0E 00 00 D3 0E 00 00 E1 0E 00 00 D3 0E 00 00 E1 0E 00 00 EE 0E 00 00 FB 0E 00 00 EE 0E 00 00 FB 0E 00 00 0A 0F 00 00 17 0F 00 00 0A 0F 00 00 17 0F 00 00 24 0F 00 00 17 0F 00 00 24 0F 00 00 32 0F 00 00 3F 0F 00 00 32 0F 00 00 3F 0F 00 00 4D 0F 00 00 5B 0F 00 00 4D 0F 00 00 5B 0F 00 00 69 0F 00 00 76 0F 00 00 69 0F 00 00 76 0F 00 00 84 0F 00 00 76 0F 00 00 84 0F 00 00 92 0F 00 00 9F 0F 00 00 92 0F 00 00 9F 0F 00 00 AE 0F 00 00 BB 0F 00 00 AE 0F 00 00 BB 0F 00 00 C9 0F 00 00 BB 0F 00 00 C9 0F 00 00 D6 0F 00 00 F6 0F 00 00 D6 0F 00 00 F6 0F 00 00 BE 0F 00 00 4C 00 00 00 BE 0F 00 00 4C 00 00 00 92 02 00 00 4C 00 00 00 92 02 00 00 77 02 00 00 73 02 00 00 77 02 00 00 73 02 00 00 7F 02 00 00 87 02 00 00 7F 02 00 00 87 02 00 00 8F 02 00 00 87 02 00 00 8F 02 00 00 98 02 00 00 9F 02 00 00 98 02 00 00 9F 02 00 00 A7 02 00 00 AF 02 00 00 A7 02 00 00 AF 02 00 00 B4 02 00 00 AF 02 00 00 B4 02 00 00 BA 02 00 00 C1 02 00 00 BA 02 00 00 C1 02 00 00 C7 02 00 00 CE 02 00 00 C7 02 00 00 CE 02 00 00 D3 02 00 00 CE 02 00 00 D3 02 00 00 D8 02 00 00 DF 02 00 00 D8 02 00 00 DF 02 00 00 E3 02 00 00 E7 02 00 00 E3 02 00 00 E7 02 00 00 EC 02 00 00 F0 02 00 00 EC 02 00 00 F0 02 00 00 F5 02 00 00 F0 02 00 00 F5 02 00 00 F9 02 00 00 FC 02 00 00 F9 02 00 00 FC 02 00 00 FF 02 00 00 02 03 00 00 FF 02 00 00 02 03 00 00 04 03 00 00 02 03 00 00 04 03 00 00 07 03 00 00 0A 03 00 00 07 03 00 00 0A 03 00 00 0D 03 00 00 0E 03 00 00 0D 03 00 00 0E 03 00 00 0F 03 00 00 0E 03 00 00 0F 03 00 00 11 03 00 00 12 03 00 00 11 03 00 00 12 03 00 00 14 03 00 00 15 03 00 00 14 03 00 00 15 03 00 00 14 03 00 00 15 03 00 00 14 03 00 00 18 03 00 00 1F 03 00 00 18 03 00 00 1F 03 00 00 A3 02 00 00 7B 02 00 00 A3 02 00 00 7B 02 00 00 84 02 00 00 7B 02 00 00 84 02 00 00 76 02 00 00 6D 02 00 00 76 02 00 00 6D 02 00 00 63 02 00 00 58 02 00 00 63 02 00 00 58 02 00 00 4F 02 00 00 58 02 00 00 4F 02 00 00 45 02 00 00 3B 02 00 00 45 02 00 00 3B 02 00 00 2F 02 00 00 25 02 00 00 2F 02 00 00 25 02 00 00 19 02 00 00 0E 02 00 00 19 02 00 00 0E 02 00 00 04 02 00 00 0E 02 00 00 04 02 00 00 F8 01 00 00 EC 01 00 00 F8 01 00 00 EC 01 00 00 E0 01 00 00 D4 01 00 00 E0 01 00 00 D4 01 00 00 C8 01 00 00 D4 01 00 00 C8 01 00 00 BC 01 00 00 B0 01 00 00 BC 01 00 00 B0 01 00 00 A4 01 00 00 97 01 00 00 A4 01 00 00 97 01 00 00 89 01 00 00 97 01 00 00 89 01 00 00 7D 01 00 00 71 01 00 00 7D 01 00 00 71 01 00 00 64 01 00 00 57 01 00 00 64 01 00 00 57 01 00 00 4B 01 00 00 57 01 00 00 4B 01 00 00 3E 01 00 00 30 01 00 00 3E 01 00 00 30 01 00 00 24 01 00 00 17 01 00 00 24 01 00 00 17 01 00 00 09 01 00 00 17 01 00 00 09 01 00 00 FB 00 00 00 EE 00 00 00 FB 00 00 00 EE 00 00 00 DD 00 00 00 C2 00 00 00 DD 00 00 00 C2 00 00 00 FD 00 00 00 C2 00 00 00 FD 00 00 00 78 0F 00 00 FE 0D 00 00 78 0F 00 00 FE 0D 00 00 33 0E 00 00 1B 0E 00 00 33 0E 00 00 1B 0E 00 00 0D 0E 00 00 00 0E 00 00 0D 0E 00 00 00 0E 00 00 F7 0D 00 00 00 0E 00 00 F7 0D 00 00 ED 0D 00 00 E4 0D 00 00 ED 0D 00 00 E4 0D 00 00 DA 0D 00 00 D0 0D 00 00 DA 0D 00 00 D0 0D 00 00 C8 0D 00 00 D0 0D 00 00 C8 0D 00 00 BF 0D 00 00 B6 0D 00 00 BF 0D 00 00 B6 0D 00 00 AE 0D 00 00 A6 0D 00 00 AE 0D 00 00 A6 0D 00 00 9E 0D 00 00 A6 0D 00 00 9E 0D 00 00 97 0D 00 00 90 0D 00 00 97 0D 00 00 90 0D 00 00 89 0D 00 00 83 0D 00 00 89 0D 00 00 83 0D 00 00 7C 0D 00 00 83 0D 00 00 7C 0D 00 00 76 0D 00 00 70 0D 00 00 76 0D 00 00 70 0D 00 00 6B 0D 00 00 66 0D 00 00 6B 0D 00 00 66 0D 00 00 61 0D 00 00 66 0D 00 00 61 0D 00 00 5C 0D 00 00 57 0D 00 00 5C 0D 00 00 57 0D 00 00 53 0D 00 00 50 0D 00 00 53 0D 00 00 50 0D 00 00 4C 0D 00 00 50 0D 00 00 4C 0D 00 00 49 0D 00 00 45 0D 00 00 49 0D 00 00 45 0D 00 00 42 0D 00 00 3F 0D 00 00 42 0D 00 00 3F 0D 00 00 3D 0D 00 00 3B 0D 00 00 3D 0D 00 00 3B 0D 00 00 37 0D 00 00 3B 0D 00 00 37 0D 00 00 36 0D 00 00 32 0D 00 00 36 0D 00 00 32 0D 00 00 2A 0D 00 00 2D 0D 00 00 2A 0D 00 00 2D 0D 00 00 31 0D 00 00 2D 0D 00 00 31 0D 00 00 34 0D 00 00 38 0D 00 00 34 0D 00 00 38 0D 00 00 3D 0D 00 00 40 0D 00 00 3D 0D 00 00 40 0D 00 00 46 0D 00 00 40 0D 00 00 46 0D 00 00 49 0D 00 00 4F 0D 00 00 49 0D 00 00 4F 0D 00 00 54 0D 00 00 58 0D 00 00 54 0D 00 00 58 0D 00 00 5F 0D 00 00 58 0D 00 00 5F 0D 00 00 63 0D 00 00 6A 0D 00 00 63 0D 00 00 6A 0D 00 00 70 0D 00 00 75 0D 00 00 70 0D 00 00 75 0D 00 00 7C 0D 00 00 75 0D 00 00 7C 0D 00 00 83 0D 00 00 89 0D 00 00 83 0D 00 00 89 0D 00 00 90 0D 00 00 98 0D 00 00 90 0D 00 00 98 0D 00 00 A0 0D 00 00 98 0D 00 00 A0 0D 00 00 A8 0D 00 00 B1 0D 00 00 A8 0D 00 00 B1 0D 00 00 B9 0D 00 00 C2 0D 00 00 B9 0D 00 00 C2 0D 00 00 CB 0D 00 00 D3 0D 00 00 CB 0D 00 00 D3 0D 00 00 DD 0D 00 00 D3 0D 00 00 DD 0D 00 00 E6 0D 00 00 F1 0D 00 00 E6 0D 00 00 F1 0D 00 00 FB 0D 00 00 05 0E 00 00 FB 0D 00 00 05 0E 00 00 10 0E 00 00 05 0E 00 00 10 0E 00 00 1B 0E 00 00 26 0E 00 00 1B 0E 00 00 26 0E 00 00 35 0E 00 00 4E 0E 00 00 35 0E 00 00 4E 0E 00 00 1A 0E 00 00 4E 0E 00 00 1A 0E 00 00 92 0F 00 00 14 01 00 00 92 0F 00 00 14 01 00 00 D8 00 00 00 F8 00 00 00 D8 00 00 00 F8 00 00 00 03 01 00 00 F8 00 00 00 03 01 00 00 10 01 00 00 1D 01 00 00 10 01 00 00 1D 01 00 00 2A 01 00 00 36 01 00 00 2A 01 00 00 36 01 00 00 42 01 00 00 36 01 00 00 42 01 00 00 4F 01 00 00 5B 01 00 00 4F 01 00 00 5B 01 00 00 68 01 00 00 74 01 00 00 68 01 00 00 74 01 00 00 80 01 00 00 74 01 00 00 80 01 00 00 8C 01 00 00 97 01 00 00 8C 01 00 00 97 01 00 00 A3 01 00 00 AF 01 00 00 A3 01 00 00 AF 01 00 00 BB 01 00 00 C5 01 00 00 BB 01 00 00 C5 01 00 00 D1 01 00 00 C5 01 00 00 D1 01 00 00 DC 01 00 00 E6 01 00 00 DC 01 00 00 E6 01 00 00 F2 01 00 00 FB 01 00 00 F2 01 00 00 FB 01 00 00 06 02 00 00 FB 01 00 00 06 02 00 00 11 02 00 00 1B 02 00 00 11 02 00 00 1B 02 00 00 25 02 00 00 2E 02 00 00 25 02 00 00 2E 02 00 00 38 02 00 00 2E 02 00 00 38 02 00 00 42 02 00 00 4B 02 00 00 42 02 00 00 4B 02 00 00 54 02 00 00 5D 02 00 00 54 02 00 00 5D 02 00 00 65 02 00 00 5D 02 00 00 65 02 00 00 6D 02 00 00 7B 02 00 00 6D 02 00 00 7B 02 00 00 6D 02 00 00 9B 02 00 00 6D 02 00 00 9B 02 00 00 3C 03 00 00 9B 02 00 00 3C 03 00 00 30 03 00 00 2A 03 00 00 30 03 00 00 2A 03 00 00 28 03 00 00 26 03 00 00 28 03 00 00 26 03 00 00 23 03 00 00 26 03 00 00 23 03 00 00 1F 03 00 00 1C 03 00 00 1F 03 00 00 1C 03 00 00 19 03 00 00 15 03 00 00 19 03 00 00 15 03 00 00 12 03 00 00 0F 03 00 00 12 03 00 00 0F 03 00 00 0A 03 00 00 0F 03 00 00 0A 03 00 00 06 03 00 00 01 03 00 00 06 03 00 00 01 03 00 00 FC 02 00 00 F7 02 00 00 FC 02 00 00 F7 02 00 00 F2 02 00 00 F7 02 00 00 F2 02 00 00 EB 02 00 00 E6 02 00 00 EB 02 00 00 E6 02 00 00 E1 02 00 00 DB 02 00 00 E1 02 00 00 DB 02 00 00 D4 02 00 00 DB 02 00 00 D4 02 00 00 CE 02 00 00 C6 02 00 00 CE 02 00 00 C6 02 00 00 C0 02 00 00 BA 02 00 00 C0 02 00 00 BA 02 00 00 B2 02 00 00 BA 02 00 00 B2 02 00 00 AA 02 00 00 A3 02 00 00 AA 02 00 00 A3 02 00 00 9B 02 00 00 92 02 00 00 9B 02 00 00 92 02 00 00 8A 02 00 00 92 02 00 00 8A 02 00 00 81 02 00 00 79 02 00 00 81 02 00 00 79 02 00 00 6F 02 00 00 66 02 00 00 6F 02 00 00 66 02 00 00 5A 02 00 00 66 02 00 00 5A 02 00 00 5B 02 00 00 74 02 00 00 5B 02 00 00 74 02 00 00 3C 00 00 00 B1 0F 00 00 3C 00 00 00 B1 0F 00 00 E5 0F 00 00 C7 0F 00 00 E5 0F 00 00 C7 0F 00 00 BB 0F 00 00 C7 0F 00 00 BB 0F 00 00 AE 0F 00 00 A0 0F 00 00 AE 0F 00 00 A0 0F 00 00 93 0F 00 00 85 0F 00 00 93 0F 00 00 85 0F 00 00 78 0F 00 00 85 0F 00 00 78 0F 00 00 6A 0F 00 00 5C 0F 00 00 6A 0F 00 00 5C 0F 00 00 50 0F 00 00 43 0F 00 00 50 0F 00 00 43 0F 00 00 35 0F 00 00 43 0F 00 00 35 0F 00 00 28 0F 00 00 1C 0F 00 00 28 0F 00 00 1C 0F 00 00 0F 0F 00 00 01 0F 00 00 0F 0F 00 00 01 0F 00 00 F4 0E 00 00 01 0F 00 00 F4 0E 00 00 E8 0E 00 00 DB 0E 00 00 E8 0E 00 00 DB 0E 00 00 CE 0E 00 00 C1 0E 00 00 CE 0E 00 00 C1 0E 00 00 B4 0E 00 00 C1 0E 00 00 B4 0E 00 00 A8 0E 00 00 9C 0E 00 00 A8 0E 00 00 9C 0E 00 00 8F 0E 00 00 84 0E 00 00 8F 0E 00 00 84 0E 00 00 78 0E 00 00 84 0E 00 00 78 0E 00 00 6B 0E 00 00 5F 0E 00 00 6B 0E 00 00 5F 0E 00 00 54 0E 00 00 48 0E 00 00 54 0E 00 00 48 0E 00 00 3D 0E 00 00 32 0E 00 00 3D 0E 00 00 32 0E 00 00 27 0E 00 00 32 0E 00 00 27 0E 00 00 1C 0E 00 00 09 0E 00 00 1C 0E 00 00 09 0E 00 00 1E 0E 00 00 7F 0D 00 00 1E 0E 00 00 7F 0D 00 00 F6 0C 00 00 7F 0D 00 00 F6 0C 00 00 0C 0D 00 00 08 0D 00 00 0C 0D 00 00 08 0D 00 00 08 0D 00 00 08 0D 00 00 08 0D 00 00 08 0D 00 00 08 0D 00 00 08 0D 00 00 08 0D 00 00 0A 0D 00 00 0B 0D 00 00 0A 0D 00 00 0B 0D 00 00 0B 0D 00 00 0C 0D 00 00 0B 0D 00 00 0C 0D 00 00 0D 0D 00 00 0C 0D 00 00 0D 0D 00 00 0E 0D 00 00 0D 0D 00 00 0E 0D 00 00 0D 0D 00 00 0D 0D 00 00 10 0D 00 00 0D 0D 00 00 10 0D 00 00 12 0D 00 00 10 0D 00 00 12 0D 00 00 14 0D 00 00 15 0D 00 00 14 0D 00 00 15 0D 00 00 19 0D 00 00 1A 0D 00 00 19 0D 00 00 1A 0D 00 00 1C 0D 00 00 1A 0D 00 00 1C 0D 00 00 1F 0D 00 00 21 0D 00 00 1F 0D 00 00 21 0D 00 00 23 0D 00 00 25 0D 00 00 23 0D 00 00 25 0D 00 00 28 0D 00 00 29 0D 00 00 28 0D 00 00 29 0D 00 00 2C 0D 00 00 29 0D 00 00 2C 0D 00 00 2F 0D 00 00 32 0D 00 00 2F 0D 00 00 32 0D 00 00 35 0D 00 00 38 0D 00 00 35 0D 00 00 38 0D 00 00 3A 0D 00 00 38 0D 00 00 3A 0D 00 00 40 0D 00 00 42 0D 00 00 40 0D 00 00 42 0D 00 00 45 0D 00 00 49 0D 00 00 45 0D 00 00 49 0D 00 00 55 0D 00 00 49 0D 00 00 55 0D 00 00 4C 0D 00 00 8A 0D 00 00 4C 0D 00 00 8A 0D 00 00 D2 0E 00 00 1C 0F 00 00 D2 0E 00 00 1C 0F 00 00 18 0F 00 00 1C 0F 00 00 18 0F 00 00 32 0F 00 00 3F 0F 00 00 32 0F 00 00 3F 0F 00 00 4C 0F 00 00 59 0F 00 00 4C 0F 00 00 59 0F 00 00 67 0F 00 00 59 0F 00 00 67 0F 00 00 75 0F 00 00 84 0F 00 00 75 0F 00 00 84 0F 00 00 91 0F 00 00 9E 0F 00 00 91 0F 00 00 9E 0F 00 00 AC 0F 00 00 9E 0F 00 00 AC 0F 00 00 BA 0F 00 00 C7 0F 00 00 BA 0F 00 00 C7 0F 00 00 D5 0F 00 00 E3 0F 00 00 D5 0F 00 00 E3 0F 00 00 F1 0F 00 00 FF 0F 00 00 F1 0F 00 00 FF 0F 00 00 0C 00 00 00 FF 0F 00 00 0C 00 00 00 19 00 00 00 26 00 00 00 19 00 00 00 26 00 00 00 34 00 00 00 43 00 00 00 34 00 00 00 43 00 00 00 50 00 00 00 43 00 00 00 50 00 00 00 5D 00 00 00 6B 00 00 00 5D 00 00 00 6B 00 00 00 78 00 00 00 85 00 00 00 78 00 00 00 85 00 00 00 93 00 00 00 85 00 00 00 93 00 00 00 A0 00 00 00 AD 00 00 00 A0 00 00 00 AD 00 00 00 BA 00 00 00 C8 00 00 00 BA 00 00 00 C8 00 00 00 D4 00 00 00 C8 00 00 00 D4 00 00 00 E1 00 00 00 EE 00 00 00 E1 00 00 00 EE 00 00 00 FF 00 00 00 16 01 00 00 FF 00 00 00 16 01 00 00 EF 00 00 00 16 01 00 00 EF 00 00 00 11 02 00 00 28 03 00 00 11 02 00 00 28 03 00 00 FC 02 00 00 0A 03 00 00 FC 02 00 00 0A 03 00 00 10 03 00 00 0A 03 00 00 10 03 00 00 12 03 00 00 14 03 00 00 12 03 00 00 14 03 00 00 17 03 00 00 19 03 00 00 17 03 00 00 19 03 00 00 1C 03 00 00 1E 03 00 00 1C 03 00 00 1E 03 00 00 20 03 00 00 1E 03 00 00 20 03 00 00 22 03 00 00 22 03 00 00 22 03 00 00 22 03 00 00 23 03 00 00 25 03 00 00 23 03 00 00 25 03 00 00 26 03 00 00 25 03 00 00 26 03 00 00 26 03 00 00 27 03 00 00 26 03 00 00 27 03 00 00 27 03 00 00 27 03 00 00 27 03 00 00 27 03 00 00 26 03 00 00 27 03 00 00 26 03 00 00 26 03 00 00 25 03 00 00 26 03 00 00 25 03 00 00 26 03 00 00 26 03 00 00 26 03 00 00 26 03 00 00 25 03 00 00 26 03 00 00 25 03 00 00 25 03 00 00 23 03 00 00 25 03 00 00 23 03 00 00 23 03 00 00 26 03 00 00 23 03 00 00 26 03 00 00 22 03 00 00 26 03 00 00 22 03 00 00 1D 03 00 00 1B 03 00 00 1D 03 00 00 1B 03 00 00 18 03 00 00 15 03 00 00 18 03 00 00 15 03 00 00 12 03 00 00 15 03 00 00 12 03 00 00 10 03 00 00 05 03 00 00 10 03 00 00 05 03 00 00 0E 03 00 00 DC 02 00 00 0E 03 00 00 DC 02 00 00 D4 01 00 00 97 01 00 00 D4 01 00 00 97 01 00 00 99 01 00 00 97 01 00 00 99 01 00 00 83 01 00 00 78 01 00 00 83 01 00 00 78 01 00 00 6A 01 00 00 5D 01 00 00 6A 01 00 00 5D 01 00 00 50 01 00 00 5D 01 00 00 50 01 00 00 43 01 00 00 37 01 00 00 43 01 00 00 37 01 00 00 29 01 00 00 1C 01 00 00 29 01 00 00 1C 01 00 00 0F 01 00 00 1C 01 00 00 0F 01 00 00 01 01 00 00 F4 00 00 00 01 01 00 00 F4 00 00 00 E7 00 00 00 D9 00 00 00 E7 00 00 00 D9 00 00 00 CB 00 00 00 D9 00 00 00 CB 00 00 00 BE 00 00 00 B1 00 00 00 BE 00 00 00 B1 00 00 00 A4 00 00 00 95 00 00 00 A4 00 00 00 95 00 00 00 87 00 00 00 95 00 00 00 87 00 00 00 7A 00 00 00 6D 00 00 00 7A 00 00 00 6D 00 00 00 5F 00 00 00 51 00 00 00 5F 00 00 00 51 00 00 00 45 00 00 00 51 00 00 00 45 00 00 00 36 00 00 00 28 00 00 00 36 00 00 00 28 00 00 00 1B 00 00 00 0D 00 00 00 1B 00 00 00 0D 00 00 00 FF 0F 00 00 F1 0F 00 00 FF 0F 00 00 F1 0F 00 00 E5 0F 00 00 F1 0F 00 00 E5 0F 00 00 D6 0F 00 00 C9 0F 00 00

我尝试在Audicity或GoldWave中导入原始数据，但在那里看不到任何波浪。

请您先说明一下，然后告诉我问题是什么？

提前非常感谢。

此致，

伊凡

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    我明天会作答。

    此致

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    您可以尝试两种可能的策略：

    不是正弦波，而是采用方波作为输入。 例如，在100 Hz或5ms High Time时，您应在High Time期间为多个样品获得相同的数字代码值。 将方波的幅度从非常小的值调整到较大的值。您可以从100 MV调整到1V。

    只需读取方波给定振幅的数字数据。 它将向您展示数字化过程。

    它几乎就像向ADC提供直流电压并读取数字值。

    或者，您可以按住音频DAC并将数字数据提供给它。 输出应是输入波形的副本

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    你好，Sanjay，

    感谢您的回复。

    我在ADC输入端使用方波进行了检查，频率极低(1Hz)。并且在恒定直流电平(高电平0.5秒或低电平0.5秒)期间进行检查 我可以看到SDOUT数据从0x0000xxx...更改为0xFFFFxxxx...值，对于相同的DC级别(高或低)，也会随机变化。 我希望在一个DC级别上看到0x0万xxxx...，在另一个DC级别上看到0xFFFFxxxx...。

    我的配置有什么问题吗？

    提前感谢。

    KR，

    伊凡

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    您的信号是 交流耦合 的吗？ 如果是这样，您应用的输入频率可能太低，并且到达引脚的信号可能会以1 Hz的输入速率进行区分

    我的建议是尝试使用100赫兹。 在此频率下，针脚波形应为正方形

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    你好，Sanjay，

    非常感谢您的回复和关注。

    我的信号是直流耦合(不应过滤直流)。 对于   这两个通道寄存器(CH1 -> 0x3C & CH2 -> 0x41)，我设置的值都是0x30 (线路输入/模拟单端输入/直流耦合输入)。

    我已将相同的波形应用到两个通道(方波，Vpk-pk = 0.5V (0至0.5V)和305.5Hz)。 我尝试使用305.5Hz而不是100Hz，因为我保存了4096字节的数据(2.6ms)，并且我想在 我保存 的数据中看到两个级别(高和低)被切断。

    数据以小端，立体声，PCM 16位信号(每通道)和384kHz采样频率(共4096字节，每通道2048字节)保存。

    因此，文件将使用以下配置保存：

    Llsb =左侧，最低有效字节。

    Lmsb =左侧，最高有效字节。

    RLsb =右，最低有效字节。

    Rmsb =右，最大有效字节。

    lsb，lmsb，rlsb，rmsb，llsb， Lmsb，Rlsb，Rmsb，...

    请查找 您的支票的数据： 

    243123F1 23F12541 233123F1 23612411 233123F1 23612411 237124D1 23612411 237124D1 236123B1 227124D1 234123B1 22712321 224123B1 22112321 224123B1 21112321 22B12201 21112321 20B12201 21612251 20B12201 21612251 20B12151 21612251 20E12151 21612181 1FE12151 21912181 1FE12151 1F912181 1FF120D1 1F912181 1FF120D1 1F9120D1 1FF120D1 1F9120D1 1FF11F81 1E9120D1 1FE11F81 1E911FE1 1EE11F81 1E311FE1 1EE11F81 1D311FE1 1E711E41 1D311FE1 1D711E41 1DC11EA1 1D711E41 1DC11EA1 1D711EB1 1DC11EA1 1D011EB1 1DC11DD1 1C011EB1 1D011DD1 1C011EB1 1C011DD1 1CC11D61 1C011DD1 1CC11D61 1CA11D31 1CC11D61 1CA11D31 1CC11CD1 1BA11D31 1C011CD1 1BA11B21 1A011CD1 1B111B21 1A011CD1 19111B21 1A111CA1 19111B21 1A111CA1 19511BA1 1A111CA1 19511BA1 1A111AF1 19511BA1 1A711AF1 19511A61 18711AF1 19411A61 18711AF1 19411A61 18E11971 19411A61 18E11971 19111991 18E11971 19111991 18E11821 17111991 18C11821 17111811 18C11821 17511811 18C11821 16511811 18B11891 16511811 16B11891 16D11741 16B11891 16D11741 16B11631 16D11741 16211631 16D11621 15211631 16A11621 15211631 14A11621 156116A1 14A11621 156116A1 14E11501 156116A1 14E11501 156115F1 14E11501 15B115F1 14E11451 13B115F1 14711451 13B115F1 14711451 13B11461 14711451 12B11461 14111391 12B11461 14111391 12B11311 12111391 12511311 121113B1 12511311 12B113B1 12511311 11B113B1 12B113D1 11B113B1 11B113D1 11C111B1 11B113D1 11C111B1 11B11131 11C111B1 11911131 11C11101 10911131 11F11101 10911131 10F11101 10111001 10F11101 0F111001 10911071 0F111001 10911071 0F111021 0F911071 0FB11021 0F910F91 0EB11021 0FB10F91 0EB11021 0EB10F91 0E110F21 0EB10F91 0D110F21 0E210EB1 0D110F21 0E210EB1 0D110E81 0D210EB1 0D810E81 0D210E41 0D810E81 0DF10E41 0D810E81 0CF10E41 0D110D41 0CF10E41 0C110D41 0C710C81 0C110D41 0C710C81 0C110D41 0B710C81 0CA10D41 0B710C21 0BA10D41 0B110C21 0BA10D41 0B110C21 0BB10BE1 0B110C21 0BB10BE1 0B710A91 0BB10BE1 0B710A91 0BB10B31 09710A91 0B310B31 09710A11 09310B31 09D10A11 09310B31 09D10A11 09110AA1 09D10A11 08110AA1 09910931 08110AA1 09910931 081109A1 08910931 089109A1 08910851 089109A1 08F10851 089109A1 06F10851 085108B1 06F10851 075108B1 06110851 075108B1 06110851 075107F1 06110851 075107F1 061107E1 055107F1 065107E1 055107F1 065107E1 052107D1 065107E1 052107D1 063106E1 052107D1 063106E1 05210601 053106E1 05510601 05310501 04510601 05210501 04510601 04210501 044105D1 04210501 044105D1 044105A1 044105D1 044105A1 04410401 034105A1 04910401 03410441 04910401 03410441 04910401 2D410441 04F10231 2D410441 63F00231 2DD10E01 63F00231 2DD10E01 63F02D71 D7DE0E01 63002D71 D7DE63A0 820E2D71 D72E63A0 820E2D71 B12E63A0 826ED89E B12E63A0 A86ED89E B11E82CE A86ED89E B11E82CE A86EB1AE A61E82CE A8DEB1AE A61EA9FE A7DEB1AE A60EA9FE A7DEB1AE A70EA9FE A70EA52E A70EA9FE A70EA52E A72EA73E A70EA52E A72EA73E A70EA7BE A82EA73E A73EA7BE A82EA8DE A93EA7BE A82EA8DE A93EA7BE A92EA8DE A9EEA80E A92EA8DE A9EEA80E A9BEA8BE A9EEA80E A9BEA8BE A9EEA91E ABBEA8BE A93EA91E ABBEA9EE AB3EA91E ABCEA9EE AB3EA91E ACCEA9EE AB8EAA2E ACCEA9EE AB8EAA2E ACAEAB5E AB8EAA2E ACAEAB5E AB8EAB0E ACAEAB5E AB9EAB0E ACAEACDE AD9EAB0E AC4EACDE AD9EAB0E AE4EACDE AD3EAC9E AE4EACDE AD3EAC9E AEEEAD5E AD3EAC9E AEEEAD5E AD3EAD2E AEEEAD5E AD4EAD2E AEEEADBE AF4EAD2E AEFEADBE AF4EAD2E AEFEADBE AF7EAEBE AEFEADBE B07EAEBE AEBEAE2E B07EAEBE AEBEAE2E B07EAFFE B1BEAE2E B0AEAFFE B1BEAFCE B1AEAFFE B17EAFCE B1AEAFFE B17EAFCE B1AEB00E B17EAFCE B2AEB00E B18EB14E B2AEB00E B18EB14E B2AEB15E B28EB14E B29EB15E B28EB1AE B29EB15E B25EB1AE B29EB15E B45EB1AE B2BEB2BE B45EB1AE B4BEB2BE B47EB3CE B4BEB2BE B47EB3CE B4BEB32E B47EB3CE B46EB32E B47EB3BE B56EB32E B48EB3BE B56EB32E B58EB3BE B57EB59E B58EB3BE B57EB59E B52EB5FE B57EB59E B52EB5FE B57EB5AE B72EB5FE B5FEB5AE B72EB6FE B7FEB5AE B78EB6FE B7FEB5AE B78EB6FE B78EB69E B78EB6FE B88EB69E B74EB72E B88EB69E B74EB72E B88EB7BE B84EB72E B88EB7BE B84EB8BE B98EB7BE B84EB8BE B98EB7BE B94EB8BE B9CEB88E B94EB8BE BACEB88E B95EB9BE BACEB88E B95EB9BE BACEB9DE BB5EB9BE BA5EB9DE BB5EBA7E BB5EB9DE BB0EBA7E BB5EB9DE BB0EBA7E BBBEBB6E BB0EBA7E BCBEBB6E BB5EBB5E BCBEBB6E BB5EBB5E BCBEBBDE BC5EBB5E BCBEBBDE BC5EBCDE BDBEBBDE BC3EBCDE BDBEBBDE BE3EBCDE BD6EBC4E BE3EBCDE BE6EBC4E BE5EBDBE BE6EBC4E BE5EBDBE BE6EBDCE BF5EBDBE BE0EBDCE BF5EBF1E BF0EBDCE BFFEBF1E BF0EBDCE C0FEBF1E BFFEBF2E C0FEBF1E C0FEBF2E C00EBE9E C0FEBF2E C00EBE9E C0FEBFBE C10EBE9E C06EBFBE C10EC03E C16EBFBE C12EC03E C16EBFBE C12EC03E C11EC18E C12EC03E C21EC18E C1FEC18E C21EC18E C1FEC18E C21EC1DE C2FEC18E C23EC1DE C2FEC25E C23EC1DE C23EC25E C23EC1DE C43EC25E C2FEC2FE C43EC25E C4FEC2FE C4DEC3EE C4FEC2FE C4DEC3EE C4FEC3AE C4DEC3EE C4DEC3AE C4DEC49E C5DEC3AE C49EC49E C5DEC3AE C59EC49E C5AEC4FE C59EC49E C6AEC4FE C5CEC47E C6AEC4FE C5CEC47E C6AEC58E C6CEC47E C61EC58E C6CEC6BE C71EC58E C63EC6BE C71EC58E C83EC6BE C70EC68E C83EC6BE C80EC68E C83EC72E C80EC68E C83EC72E C80EC88E C83EC72E C8AEC88E C83EC87E C9AEC88E C82EC87E C9AEC88E CA2EC87E C97EC8CE CA2EC87E CA7EC8CE CA8EC98E CA7EC8CE CA8EC98E CA7EC95E CA8EC98E CA6EC95E CA8ECA1E CB6EC95E CAFECA1E CB6EC95E CBFECA1E CBBECACE CBFECA1E CBBECACE CB8ECABE CBBECACE CB8ECABE CBBECB6E CD8ECABE CBAECB6E CD8ECB7E CDAECB6E CD2ECB7E CDAECB6E CD2ECB7E CDBECC3E CD2ECB7E CEBECC3E CDDECD9E CEBECC3E CDDECD9E CEBECD7E CFDECD9E CE9ECD7E CFDECD1E CE9ECD7E CF1ECD1E CE9ECD7E CF1ECD1E CEAECE0E CF1ECD1E D0AECE0E CFEECFCE D0AECE0E CFEECFCE D0AECE7E D0EECFCE D0FECE7E D0EECF5E D1FECE7E D0AECF5E D1FECE7E D2AECF5E D15ED02E D2AECF5E D15ED02E D20ED03E D15ED02E D20ED03E D15ED10E D20ED03E D14ED10E D20ED26E D34ED10E D2EED26E D34ED10E D3EED26E D3FED2FE D3EED26E D4FED2FE D30ED29E D4FED2FE D30ED29E D4FED24E D40ED29E D40ED24E D40ED41E D40ED24E D49ED41E D40ED24E D59ED41E D40ED43E D59ED41E D50ED43E D51ED4DE D50ED43E D51ED4DE D50ED54E D61ED4DE D53ED54E D61ED51E D73ED54E D6DED51E D73ED54E D7DED51E D7FED67E D7DED51E D7FED67E D70ED61E D7FED67E D70ED61E D7FED63E D70ED61E D72ED63E D70ED78E D82ED63E D75ED78E D82ED63E D85ED78E D86ED8FE D85ED78E D96ED8FE D88ED86E D96ED8FE D88ED86E D96ED8BE DA8ED86E D99ED8BE DA8ED9AE DA9ED8BE DA7ED9AE DA9ED8BE DB7ED9AE DA1ED95E DB7ED9AE DB1ED95E DB0EDA0E DB1ED95E DB0EDA0E DB1EDB4E DC0EDA0E DB2EDB4E DC0EDA0E DC2EDB4E DC1EDA0E DC2EDB4E DC1EDA0E DC1EDB1E DC1EDA0E DD1EDB1E DC6EDC2E DD1EDB1E DC6EDC2E DD1EDDFE DD6EDC2E DD7EDDFE DD6EDC1E DD7EDDFE DD3EDC1E DD7EDDFE DE3EDC1E DDCEDD9E DE3EDC1E DFCEDD9E DEAEDE7E DFCEDD9E DEAEDE7E DFCEDDBE DFAEDE7E DF7EDDBE DFAEDE0E DF7EDDBE DF2EDE0E DF7EDDBE E02EDE0E DFCEDF5E E02EDE0E E0CEDF5E E0AEE0EE E0CEDF5E E0AEE0EE E0CEDF7E E0AEE0EE E01EDF7E E0AEE0EE E01EDF7E E08EE0EE E01EDF7E E38EE0EE E00EE1CE E38EE0EE E20EE1CE E30EE0DE E20EE1CE E30EE0DE E20EE30E E20EE0DE E29EE30E E20EE28E E49EE30E E20EE28E E49EE30E E30EE28E E40EE29E E30EE28E E40EE29E E37EE41E E40EE29E E37EE41E E40EE3DE E57EE41E E43EE3DE E57EE46E E43EE3DE E59EE46E E43EE3DE E59EE46E E47EE46E E59EE46E E57EE46E E58EE56E E57EE46E E58EE56E E57EE5EE E68EE56E E52EE5EE E68EE5FE E72EE5EE E61EE5FE E72EE5EE E71EE5FE E74EE64E E71EE5FE E84EE64E E7CEE70E E84EE64E E7CEE70E E84EE72E E8CEE70E E84EE72E E8CEE70E E84EE72E E8AEE70E E84EE72E E9AEE70E E80EE8DE E9AEE70E E90EE8DE E94EE89E E90EE8DE E94EE89E E90EE93E EA4EE89E E96EE93E EA4EE92E E96EE93E EADEE92E E96EE93E EBDEE92E E9BEE97E EBDEE92E ECBEE97E EB2EEABE ECBEE97E EB2EEABE ECBEEA3E EB2EEABE ECBEEA3E EB2EEB1E ECBEEA3E EBBEEB1E ECBEEA3E ECBEEB1E ECBEEB1E ECBEEB1E EDBEEB1E ECDEEB9E EDBEEB1E ECDEEB9E EDBEEC4E EDDEEB9E EDDEEC4E EDDEEB5E EDDEEC4E ED3EEB5E EDDEEC4E EE3EEB5E EDCEEDEE EE3EEB5E EECEEDEE EE4EEE5E EECEEDEE EE4EEE5E EECEEDBE EE4EEE5E EE6EEDBE EE4EEEDE EF6EEDBE EE6EEEDE EF6EEDBE F06EEEDE EFAEEF5E F06EEEDE F0AEEF5E F03EEFFE F0AEEF5E F03EEFFE F0AEEF7E F13EEFFE F0AEEF7E F13EF19E F0AEEF7E F1FEF19E F0AEEF7E F1FEF19E F0BEF03E F1FEF19E F1BEF03E F1DEF0CE F1BEF03E F1DEF0CE F1BEF1EE F2DEF0CE F17EF1EE F2DEF1DE F37EF1EE F2CEF1DE F37EF1EE F3CEF1DE F3FEF2BE F3CEF1DE F4FEF2BE F3AEF24E F4FEF2BE F3AEF24E F4FEF35E F3AEF24E F46EF35E F3AEF35E F36EF35E F39EF35E F36EF35E F49EF35E F39EF4FE F49EF35E F69EF4FE F43EF47E F69EF4FE F43EF47E F69EF5DE F53EF47E F6EEF5DE F53EF51E F6EEF5DE F50EF51E F6EEF5DE F70EF51E F68EF58E F70EF51E F68EF58E F75EF62E F68EF58E F75EF62E F68EF63E F75EF62E F6EEF63E F75EF7CE F8EEF63E F70EF7CE F8EEF63E F80EF7CE F8DEF65E F80EF7CE F8DEF65E F86EF89E F8DEF65E F86EF89E F8DEF88E F96EF89E F88EF88E F96EF8BE F98EF88E F96EF8BE F98EF88E F96EF8BE F9DEF95E F96EF8BE FADEF95E F99EF9EE FADEF95E F99EF9EE FADEF9EE FB9EF9EE FAAEF9EE FB9EFA9E FBAEF9EE FB6EFA9E FBAEF9EE FC6EFA9E FBAEFA0E FC6EFA9E FFAEFA0E FC2EFB3E FFAEFA0E FC2EFB3E FFAEFB4E CE2EFB3E FF5EFB4E CE2E0AAF 6451FB4E CEAE0AAF 6451FB4E 5AA10AAF 64312B80 5AA10AAF 5A312B80 5AF14AF1 5A312B80 5AF14AF1 5A315AD1 59F14AF1 5AA15AD1 59F15831 58A15AD1 59A15831 58A15AD1 58A15831 58615981 58A15831 57615981 58415851 57615981 58415851 57615721 57415851 57215721 574157B1 56215721 578157B1 56215721 558157B1 56B15761 558157B1 55B15761 558156E1 55B15761 558156E1 55B155D1 558156E1 55E155D1 558155B1 54E155D1 559155B1 54E155D1 549155B1 54315461 549155B1 53315461 54015371 53315461 54015371 53315411 53015371 53615411 53015331 52615411 53115331 52615411 51115331 52C15241 51115331 51C15241 51E153F1 51C15241 51E153F1 51C15081 50E153F1 51915081 50E150E1 50915081 506150E1 50915081 4F6150E1 509150B1 4F6150E1 4F9150B1 4F9150F1 4F9150B1 4F9150F1 4F914FF1 4E9150F1 4F014FF1 4E914F41 4E014FF1 4EE14F41 4E014FF1

    请在下面查找其在输入处的方波的外观(通道3 -"输入")：

    请在下面了解数据的真实性：

    频率似乎是"正确的"，但我仍然没有得到正确的波形。

    请确认我的i2c命令是否正确？：

    再次感谢您的帮助。

    此致，

    伊凡

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    你好，Ivan

      您显示的波形是否在芯片的输入引脚上？

    此波形类似于驱动到RC差异或高通滤波器的经典方波。 如果您是DC

    耦合信号可能 存在芯片中可能存在的内部可编程高通滤波  

    做些什么。

    高通滤波器的默认情况下，设置切断频率0.0.0025万 为FS*FS，频率为FS=384Khz，

    0.0.0025万 *384khz，96Hz。 通常，信号频率应是截止值的10倍或约1kHz。

    我会说尝试1kHz信号并查看波形形状。

    或者，将采样率(FS)降低到48kHz。 这将给出fcut=fcut=48K=12hz 0.0.0025万。 然后，您可以尝试使用

    305Hz输入信号。

    不确定这是不是原因，但值得一试。

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    你好，Sanjay，

    感谢您的回复。

    我还在不断地遇到奇怪的波浪，但我认为问题正在继续。 让我向您展示一些导入数据以供Audacity使用。

    -输入：1kHz方波。 第一种：进口为"小印第安人"。 第二个：输入为"大Endian "(这一个看起来"接近"输入处的方波)

    -输入：1kHz正弦波。 第一种：进口为"小印第安人"。 第二个：输入为“Big Endian”(这一个看起来像一个切掉的正弦波？)

    好的。 这只是一个重要的问题，因为问题可能是我没有以正确的方式收集SDOUT数据。 请确认SDOUT数据16位签名PCM和TDM模式是否遵循 以下顺序：

    (正在...  

    Llsb =左侧，最低有效字节。

    Lmsb =左侧，最高有效字节。

    RLsb =右，最低有效字节。

    Rmsb =右，最重要的字节。)))

    (dsPIC输入) <---  lsb，lmsb，rlsb，rmsb，llsb， Lmsb，Rlsb，Rmsb，...   <----  (ADC SDOUT)  

    提前感谢。

    KR，

    伊凡

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    在每个FSYNC中有32  BCLKS。

    它们应显示为216位字。

    前16位 是通道1 (左)  MSB------- LSB

    接下来的16位是Channel2 (RIGHT) MSB-LSB。

    您可以尝试读取中每个帧中的前16位数据以查看左侧输出。

    明天我还会尝试向您发送一个配置文件

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    在每个帧中，我们有 2个16位的插槽，  

    第一个是通道1 (左) MSB--LSB

    第二个是通道2 (右) MSB--LSB

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    好的，明白了。

    另外，每个通道16位，我必须将其视为已编码？ (-3.2768万至+3.2767万)

    我对吗？

    谢谢。

    伊凡

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    你好，Sanjay，

    我更接近获得一些东西。

    我正在用不同的输入信号和频率进行一些测试。

    **我在通道2中输入0x0000以避免混乱。 (请忽略此频道)

    -输入信号：3kHz和1Vpk-pk (1正弦，2方形，3三角形)

    -输入信号：300Hz和1Vpk-pk (1正弦，2方形，3三角形)

    方形看起来“不错”，但正弦和三角形似乎“被切碎”？

    请告诉我我的配置(i2c命令)是否正确？

    提前感谢。

    KR，

    伊凡

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    您好，

    我发现了一些好奇的东西。

    信号每传输64字节"被斩波"，因此每16个Fsync周期(16位/通道(2字节/通道)* 2个通道* 16个周期= 64字节)。

    这种成功是否有任何解释？

    我用一个斜坡信号检查了我的代码，只是为了看看缓冲管理是否正确，看起来还可以。

    我的配置有什么问题吗？

    谢谢。

    KR，

    伊凡

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    您能与我分享您的原理图吗？

    您将MCLK授予哪个PIN？

    我将尝试与您共享一个采样速率为48K的配置

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    你好，Sanjay，

    请在下面找到ADC示意图：

    请在下面查找外部振荡器示意图：

    MCLK转至GPOI1 (ADC1在主模式下工作)

    KR，

    伊凡

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    e2e.ti.com/.../ivan2.cfg

    我已包含一个48K采样率的文件。  

    您应该得到12.288Mhz，fsync=48K的BCLK。

    TDM输出的前2个插槽中的32位音频。

    此代码用于交流耦合单端 输入。  

    如果使用DC耦合，请将寄存器0x3c更改为0xb0。

    您是否还可以向我发送您所发出的输入信号的准确波形截图-(所示为电压电平)

     

    对于直流耦合，请将INM连接至接地，如图所示。 在原理图中看不出有没有。

    理想情况下，如果您向ADC输入正弦波，则波形应限制在0-2.75v之间。

    正弦值的零值应为1.37v。

    请告诉我此配置是否正常工作

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    你好，Sanjay，

    感谢您的回复和配置文件。

    很遗憾，它在我的系统中不能正常工作。

    请在下面查找我要发送到ADC的i2c命令的列表(这些命令根据您的配置文件而定)；

    另外，从示波器中找到一个屏幕捕获，您可以看到根据这些命令，我得到的BCLK为24.576MHz (不是12.288MHz？)，Fsync为96kHz (不是48kHz？)。 此外，我没有获得任何SDOUT数据。  V输入(信号发生器到CH1和CH2输入的信号)= 1Vpk-pk 1.5VDC 1kHz (介于 0-2.75v之间)。

    有关配置文件的一些问题：

    -对于“ASU配置”寄存器(0x07)：它是否应该是0x00而不是0x30？ ->为了获得16位/插槽(16位/通道)？

    -根据表8-6 (来自TLV320ADC6120数据表)，48kHz-Fsync，12.288MHz-BCLK和32的比率(为了获得32位数据->每通道16位数据)不可能组合。 唯一的一个是 12.288MHz-BCLK和384kHz-Fsync，以便获得32位数据(每通道16位)的比率

    注：我将0xB0发送到0x3C和0x41，因为我正在对两个通道使用DC耦合(IN1P和IN2P通过链接LK25和LK28连接到GND)。

    提前感谢。

    此致，

    伊凡

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    e2e.ti.com/.../ivan3.cfg

    您是否介意尝试一下？ 它是否有效？

    我的目标是48kHz的FSYNC，BCLK/FSYNC比率为256。这将使BCLK达到12.288Mhz。

    数据被选为32位数据，因此在1个FS中有8个插槽。 插槽1和插槽2有模拟信号

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    你好，Sanjay，

    我想我终于明白了。 由于您的配置文件，我对其进行了修改，以获得384kHz的采样率我获得了一些适用于不同频率和振幅的正确波形；请参阅下面的一些示例(仅通道1)：

    检测到一些点似乎不正确，但可能来自输入信号...

    下面是我的配置，以防将来有人想要获得相同的结果：

    仅通道1 (单声道)，FSYNC= 384kHz，16位数据(1通道)，MCLK=BCLK-24.576MHz。

    非常感谢您的帮助！

    此致，

    伊凡

  • 0
    TI__Guru**** 2386340 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    很高兴知道它工作正常。

    此致

    Sanjay