• 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: Matrix Inverse problem
    Hello, While debugging a DSP algorithm, I realized the problem is duo to the CMSIS matrix inverse function: arm_mat_inverse_f32. It's really strange and is driving me crazy. arm_mat_inverse_f32 returns...
  • 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 - FIR decimation
    Hi, I am trying to implement FIR decimation on PDM input. Which FIR decimator function should I use? I am now trying to implement arm_fir_decimate_fast_q15 since I need to feed the output (hopefully PCM...
  • CMSIS DSP new functionality proposal
    CMSIS DSP is a great tool which allows Cortex-M4 devices to have a great app field range, even replacing some general purpose DSP sometimes. However I am missing some "simple" new functions that could...