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Low Power RF & Wireless Connectivity
Low Power RF PurePath Wireless Audio Forum
cc85xx latecy's precision
I'm going to order a Cc85xxdk-headset kit to replace the cable from mic to the audio board connected to a PC.
By the way the mic capture a low ultrasonic signal at 24 kHz that has to be delivered to the pc with a fixed latency (no matter what it is) because I need to measure the time of flight of the ultrasonic signal that is sourced by the pc through the same audio board.
I've red in the user guide that the latency is programmable but I'd like to know if this latency is really fixed and what is its precision.
more I can accept packet lost so I don't need packet retransmission; it's possible to configure the system in this way?
The audio clock is synchronized to within ±1 sample across all nodes in audio network. Pin-to-pin audio latency on the I2S pins is configurable to between 512 and 2048 samples.
Have a look at section 188.8.131.52 in the CC85xx user's guide for more details:
Hope it helps
Thank you. i've ordered the headset sdk kit, so I'll take some measurement and will post the result here.
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