About KJans.1

KJans.1 · 2021-11-29

I have a STM32L433 driving a FDA802 using SAI in I2S standard mode, and it randomly swaps the left and right channels. I have compiled with a small table of interleaved data (two sine waves of different amplitudes) to try an fault find. the code I am...

KJans.1 · 2021-06-28

Hi There,I'm looking for help with the SAI4 for this device. I have setup the DMA for SAI4A which is linked to BDMA Channel 2. I have defined my buffers within the D3 domain and have enabled the event on the BDMA channel to request number 15 (sai4_a...

KJans.1 · 2021-11-29

Further to the above, I can see the WS swapping on the scope side even though the buffers are still populated in the correct order of interleaved data, so I assume the FDA802 amplifier is not the issue and is simply doing what it is told. Also this s...

KJans.1 · 2021-06-30

Thanks for the feedback. It was a memory access issue. I had defined my dma buffers in the correct D2 and D3 sections but this was done in the RAM.ld file which wasn't being used by the project. I defined the sections in the Flash.ld and DMA started ...

KJans.1 · 2021-06-29

Thanks for the quick reply. The BDMA registers are not displayed in my SFRs window. Here is the DMAMUX3 which I presume is DMAMUX2 just labelled incorrectly. Kline

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