• CMSIS-DSP: CFFT with Q15, wrong output
    Hi, I changed the CMSIS-DSP frequency bin example to Q15 format (or at least I'm trying to do so), but I'm getting wrong results. My changed code: /* =================================================...
  • Type conversion(short to Q15)
    Dear all I have sampled some data using a 16bit ADC the data is in short(16-bit int) format, now I want to use the Cortex CMSIS DSP library to do some calculations like calculating rms values.I have...
  • FFT and IFFT using CMSIS DSP library, q15 fractional format
    Hello, I am currently trying to use the CMSIS DSP library to implement DSP functionality, by doing FFT or IFFT. I don't have an embedded Floating point Unit, thus I would like to use the fixed q15 fractional...
  • ARM CMSIS IIR Q15 filter problem
    Hi, I am trying to implement IIR filter using CMSIS library and "arm_biquad_cascade_df1_q15" function. First of all I already made a design with "arm_biquad_cascade_df2T_f32" function but for...
  • Using CMSIS DSP on STM32F746ZG for FIR filtering
    Hi! We're trying to use the CMSIS DSP library to filter a real-time signal using the CMSIS dsp fir function. We are using the STM32746ZG board. We've calculated the coefficients in C and they are correct...