About NBees.1

NBees.1 · 2020-10-29

Hi there,I am trying to do some digital signal processing on a STM32G031F6 by interfacing an SPH0645 MEMS microphone via I²S. I'm running into strange issues however, that I haven't been able to solve in the last few days. I am switching to an analog...

NBees.1 · 2020-11-02

I would expect that because the documentation states:[...] when a 24-bit data frame or a 32-bit data frame is selected the Size parameter means the number of 16-bit data length.That tells me that if I want to read the 32-bit data frame I need to use ...

NBees.1 · 2020-11-02

Since your answers point towards a mistake on my end instead of a clock issue (like I thought initially), maybe a few lines of code can resolve the issue:uint16_t data_i2s[2]; // Define a double sized (32 bit) pointer for data. // Receive two words...

NBees.1 · 2020-11-01

I did that. Worked perfectly fine. I tried it with both a predefined array as well as in a loop. Both worked without any wrong values. I also polled the I2S interface while from within the loop to see if that would throw things off, but it changed no...

NBees.1 · 2020-11-01

That's a good tip and something I should've done earlier. Thank you!

NBees.1 · 2020-10-31

Well graphing out the data externally is working perfectly fine. The problem is (as mentioned in my first post) that when I do the same on the chip itself, I only get rubbish as a result which is due to the the values shown via UART are not the same ...

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