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  • 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 CODEC. SSI0 and uDMA are being used to take in…

  • Fixed-point calculation using CMSIS_library

    Hi.

    I'm a robot engineer and I usually use MCUs such as nrf52832(cortex-M4f) or ST32f407(cortex) to use various sensors. 

    Since those MCUs have an FPU inside, calculating time was quite fast without any burdensome optimizations. 

    The problem is, I have to…

  • ARM DSP is the way to go – An intern’s perspective

    I’ve been interning at ARM for the last two months as a summer student and spent a fair amount of time looking into the Digital Signal Processing (DSP) market and how it relates to ARM. DSP is used in speech recognition, radar signal analysis,…

  • 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? Guess what: other people have dealt with the…