How to do FIR with STM32F429?

Carter Lee · ‎2018-01-19

Posted on January 19, 2018 at 09:30

Dear all

I'm trying to make a Low Pass Filter from ADC signal within STM32F429.

I came across some relative document as the below

But it seems to need more information how to do the FIR with STM32F429x.

I can successively get the some filter coefficients as the below

But I don't know how to apply that coefficients and how to implement with STM32F429x within Keil.

Would you please help me how to apply and implement that FIR filter?

Additionally, I found

arm_fir_f32

function from

Does arm_fir_f32() mean that I can use it as low pass filter or high pass filter or band pass filter by using only coefficients?

What if I want to use it as low or high or band pass filter, then do I only need fir coefficients?