• RFFT CMSIS-DSP - Fluctuating index
    I am using the Cortex M4 with CMSIS 5.4.0 DSP library. I'm using the arm_rfft_f32() function and the max_arm_f32() function to compute the maximum frequency bin of injected pure sine wave with an external...
  • Cortex-M processors in DSP applications. Why not?
    Have you ever been in a situation where you successfully validated your algorithm and asked yourself: is there a hardware platform with DSP capabilities so I can get my embedded project to market quickly...
  • CMSIS-DSP on ARMv8-m
    Hi, I'm reading through the sources of CMSIS-DSP and came across the following question: The define of "ARM_MATH_DSP" is only set if the target architecture is "ARM_ARCH_7EM". Does this mean, that all...
  • Where are the DSP prebuild libraries?
    I'm trying to learn a little about DSP in stm32 microcontrollers. I follow the instructions on the official site: arm-software.github.io/.../index.html And i downloaded the CMSIS package from github:...
  • How to speed up DSP processing using Cortex-M0+
    My product is using M0+ core of MCU. And it has FFT and FIR process using CMSIS-DSP. But I faced an issue for performance of these process. It cannot finish doing process within some period of system...