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2 votes
1 answer
71 views

Reason for the degraded I2S signal

I'm working with one of the devices from the NXP's IMX family - the IMX93 evaluation board. I've managed to setup the sound card drivers already, the next step was to test I2S signals output via the ...
Antoni's user avatar
  • 121
3 votes
1 answer
184 views

Why is my frequency being effectively doubled?

I'll try to explain everything with detail as this is one will be a hard one to explain. Essentially what I am trying to achieve is sum both the left & right channel to produce a mono signal to be ...
Leoc's user avatar
  • 1,421
1 vote
1 answer
779 views

Can someone help me explain I2S timings when it comes to master and multiple slaves

I am just getting stuck as to what's happening. Below explains the functionality of each of the hardware and how they interact with each other to give you a better idea of the situation. HARDWARE USED:...
Leoc's user avatar
  • 1,421
0 votes
1 answer
81 views

Synchronizing an oscillator signal and a single wire signal

On some 32bit MCUs(PIC32MX, STM32F4), those SPI pins can read a continuous signal such as I2S/PCM. So I thought to read a single-wire signal that has MHz fixed frequency as SPI. First, I made a ...
Tank2006's user avatar
0 votes
2 answers
2k views

Digital Microphone : I2S data output

I have been playing around with some digital microphones, which have an I2S interface. I managed to get it working (Arduino board with small I2S mems board). At least, I think I did. When reading the ...
Salvatore Castellano's user avatar