• arm_cmplx_mag_f32() producing all-zero output
    Hi, I'm trying to use arm FFT from the DSP library. The provided example (arm_fft_bin_example) is working, but once I use my own sinus wave values, I see an unexpected behavior. The values in arm_fft_bin_example_f32...
  • arm_mat_inverse_f32 producing incorrect singularities
    Hi there, I am trying to invert a matrix using arm_mat_inverse_f32(). I am getting correct results for some martices, but in the code below status3 = ARM_MATH_SINGULAR. status1 and 2 = ARM_MATH_SUCCESS...
  • 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: /* =================================================...
  • warning: L6989W
    Hi, I am using DSP for FFT function. and after compiling I seeing this warning. I searched for solution in Google, and I followed this guide: https://www.keil.com/support/docs/3853.htm but the...
  • --multifile produces no output file
    Hello, I am stumbled on use of the --multifile option of armcc. I need it to build a large application image that would not fit the chip otherwise (a few hundreds of bytes gained from optimizations...