update
This commit is contained in:
PhatenIoT-yan
@@ -0,0 +1,68 @@
|
||||
---
|
||||
title: OT82111_VC1 Firmware Test Guide
|
||||
status: new
|
||||
---
|
||||
|
||||
# OT82111_VC1 Firmware Test Guide
|
||||
|
||||
## 1. Block Diagram Overview
|
||||
|
||||
<div class="result" markdown>
|
||||
This guide introduces the testing methods and related instructions for the OT82111_VC1 firmware on the A316-LS-MIC-V2 evaluation board.
|
||||
|
||||
{ width=450}
|
||||
</div>
|
||||
|
||||
---
|
||||
|
||||
## 2. Default Input and Output of A316-LS-MIC-V2
|
||||
|
||||
- The default input from A316-LS-MIC-V2 to A316 is fixed at 24-bit 48KHz.
|
||||
- Regardless of the sampling rate selected during recording, when the USB device outputs to the 3.5mm audio jack (for headphone testing), the audio will always be converted to 24-bit 48KHz for playback.
|
||||
- The audio format output from the USB device to the playback device is 24-bit 48KHz and cannot be changed.
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
---
|
||||
|
||||
## 3. I2S Output Sampling Rate Acquisition and Switching
|
||||
|
||||
The A316-LS-MIC-V2 evaluation board supports switching between different input sampling rates via a button, and the audio will be normally output through the 3.5mm jack (for headphone testing).
|
||||
Supported sampling rates include: 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz.
|
||||
For precise measurement of the sampling rate, you can use a logic analyzer to capture the waveform (actual measurements may have some error).
|
||||
|
||||
### 1. Button Position for Switching Sampling Rate
|
||||
|
||||
|
||||
|
||||
### 2. A316-LS-MIC-V2 Waveform Capture Wiring
|
||||
|
||||
|
||||
|
||||
### 3. Recording and Waveforms at Different Sampling Rates (All 24-bit)
|
||||
|
||||
- **44.1KHz:**
|
||||
|
||||
|
||||
|
||||
- **48KHz:**
|
||||
|
||||
|
||||
|
||||
- **88.2KHz:**
|
||||
|
||||
|
||||
|
||||
- **96KHz:**
|
||||
|
||||
|
||||
|
||||
- **176.4KHz:**
|
||||
|
||||
|
||||
|
||||
- **192KHz:**
|
||||
|
||||
|
||||
Reference in New Issue
Block a user