Files
phaten-audio/en/docs/dev_doc/faq/technical_faq/technical_faq.md

134 lines
4.8 KiB
Markdown
Raw Normal View History

2025-07-28 15:13:49 +08:00
---
title: Common Questions and Answers for WiFi Audio + Bluetooth Modules
description: This document summarizes common technical questions and answers regarding wireless WiFi modules and Bluetooth modules, including IR remote decoding, power consumption, chip architecture, TX/RX switching, Bluetooth TWS, etc., to help developers quickly locate and solve problems.
keywords: 8711, wireless speaker, IR remote, module power consumption, WIFI BT chip, TX RX switching, Bluetooth TWS, technical FAQ
---
--8<-- "common/phaten_xmos_support_img.md"
# Technical FAQ for WiFi Audio + Bluetooth Modules
## Q1: Does the module support IR remote decoding?
**IR remote decoding is supported.**
---
## Q2: Power consumption during module operation and standby
=== "Sleep Mode 1"
- **Operating state**: Both TX/RX are in sleep, WiFi is off, TX and RX BLE are working
- **How to enter sleep**:
- The application actively calls the Sleep interface
- Automatically enters after detecting no I2S data for a period of time
- **Wake-up method**:
- UART/GPIO interrupt wakes up TX → TX wakes up RX
- UART/GPIO interrupt wakes up RX → RX wakes up TX (bi-directional wake-up)
- **Current**:
- Unidirectional wake-up: TX ≤1mA, RX ≤3mA
- Bidirectional wake-up: TX ≤3mA, RX ≤3mA
=== "Sleep Mode 2"
- **Operating state**: TX WiFi does not sleep, RX WiFi sleeps, TX/RX BLE are off
- **How to enter sleep**:
- The application actively calls the Sleep interface
- Automatically enters after detecting no I2S data for a period of time
- **Wake-up method**:
- The application calls the playback interface (TX automatically wakes up RX)
- RX is automatically woken up when I2S data is detected
- **Current**: RX ≤1mA
---
## Q3: What is the WIFI and BT chip architecture of the module?
A single SoC integrates both WIFI and BT functions.
---
## Q4: Does it support online TX/RX switching?
### Support status:
- Supports online TX/RX switching in WIFI mode
- BT mode limitations:
- SoC only supports BLE5.0
- Does not support Classic BT
- Cannot transmit audio via mobile phone Bluetooth
### Working mode description:
=== "**TV Mode**:"
- The transmitter box is WIFI TX
- The receiving speakers are dual RX (left/right channels)
![TV Mode](/assets/images/faq/wifiaudio_bl/FCM362K_problem_4-1en.png)
=== "**BT Mode**:"
- Left speaker:
* Receives mobile phone signal via BT
* Simultaneously acts as WIFI TX to transmit to the right speaker
- Right speaker: pure WIFI RX mode
![BT Mode](/assets/images/faq/wifiaudio_bl/FCM362K_problem_4-2en.png)
---
## Q5: Bluetooth TWS function implementation
- **Native Bluetooth TWS is not supported**
- **Alternative solution**:
- In BT mode, the left speaker (with IR receiver) acts as TX
- Transmits the right channel to the right speaker via TWS
- The right speaker (without IR receiver) acts as RX to receive the TWS signal
![TWS Solution](/assets/images/faq/wifiaudio_bl/FCM362K_problem_5en.png)
<!-- Structured Data Markup -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "FAQPage",
"mainEntity": [
{
"@type": "Question",
"name": "Does the module support IR remote decoding?",
"acceptedAnswer": {
"@type": "Answer",
"text": "IR remote decoding is supported."
}
},
{
"@type": "Question",
"name": "What is the power consumption during module operation and standby?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Sleep Mode 1: Both TX/RX are in sleep, WiFi is off, TX and RX BLE are working. Unidirectional wake-up: TX≤1mA, RX≤3mA; Bidirectional wake-up: TX≤3mA, RX≤3mA. Sleep Mode 2: TX WiFi does not sleep, RX WiFi sleeps, TX/RX BLE are off, RX≤1mA."
}
},
{
"@type": "Question",
"name": "What is the WIFI and BT chip architecture of the module?",
"acceptedAnswer": {
"@type": "Answer",
"text": "A single SoC integrates both WIFI and BT functions."
}
},
{
"@type": "Question",
"name": "Does it support online TX/RX switching?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Supports online TX/RX switching in WIFI mode. BT mode only supports BLE5.0, does not support Classic BT, and cannot transmit audio via mobile phone Bluetooth."
}
},
{
"@type": "Question",
"name": "How is the Bluetooth TWS function implemented?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Native Bluetooth TWS is not supported. In BT mode, the left speaker acts as TX and transmits the right channel to the right speaker via TWS. The right speaker acts as RX to receive the TWS signal."
}
}
]
}
</script>