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ARM: STM32 real time FIR filter from ADC samples (2 Replies)

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Hello, I have a Nucleo-L476RG board and I'm trying to make a lowpass filter with the FIR function (using cmsis libraries) to filter the samples I get from the ADC in realtime. Then I'd like to get the processed signal out through the DAC. Both ADC and DAC work at a sampling frequency of 20khz, triggered by two (tim6 and tim7) timers. They use DMA. FIR function is called every time the ADC ends a conversion. I'm using arrays of 1 element as buffers, so the number of bloc

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