• CMSIS DSP stage_rfft_f32 function
    Hi, I am exploring the CMSIS DSP library. After playing for a while I have 2 questions: -in case I want to evaluate DFT over bigger data window than 4096 I would need to provide Twiddle Coefficient...
  • 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: /* =================================================...
  • CMSIS DSP - FFT / RFFT
    Recently I've been trying to implement FFT provided in CMSIS-DSP libraries. And something strange happens - some of output array elements have values below 0. I am using arm_rfft_fast_f32 . According...
  • CMSIS DSP handle large matrices
    Hello I'm using a cortex-m3 low power MCU to remove baseline from a signal acquired through a sensor, 256 float32_t samples for that I'm trying to implement the Asymmetric Least Squares Baseline Subtraction...
  • CMSIS DSP Libraries integration
    Hello, I am using TI Hercules Evaluation Board TMS570LS0714 which is ARM Cortex R. For this processor TI provides pre-compiled libraries, available at http://www.ti.com/tool/HERCULES-DSPLIB .I am...