• CMSIS: DSP Lib - Frequency Bin Example (strange behavior)
    Estimated colleagues, following I explain the strange behavior: I am working the STM32F407 ARM processor, compiling with the GNU Tools ARM (4_9-2014q4) , use the HAL provided by STM32CubeF4 v1.5.0, using...
  • CMSIS: DSP Lib - Frequency Bin Example (strange behavior)
    Estimated colleagues, following I explain the strange behavior: I am working the STM32F407 ARM processor, compiling with the GNU Tools ARM (4_9-2014q4) , use the HAL provided by STM32CubeF4 v1.5.0, using...
  • 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 - 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...
  • 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...