RE: CMSIS / nRF5 SDK version matrix

Priyanka — Mon, 04 May 2026 13:01:29 GMT

Hi Vincent,

It's using CMSIS version 4.30
You can find it here:

nRF5_SDK_15.3.0_59ac345\components\toolchain\cmsis\include\core_cm4.h

-Priyanka

RE: CMSIS / nRF5 SDK version matrix

Priyanka — Mon, 04 May 2026 12:36:11 GMT

Hi Vincent,

I am checking this internally and will get back to you.

-Priyanka

RE: CMSIS / nRF5 SDK version matrix

Vincent Belaïche — Mon, 04 May 2026 12:28:45 GMT

For information, I ran this script below to seek nRF5 SDK 15.3.0 CMSIS version

#! /usr/bin/env bash

# Replace /path/to/nRF5-SDK15.3.0 below by the suitable path

set -e

temp_dir=$(mktemp /tmp/find-cmsis-ver.XXXXXXX)
function on_exit
{
    rm -fr $temp_dir
}

cd "$tem_dir"
found=false;

for tag in 5.5.1 5.5.0 5.4.0 5.3.0 5.2.0 5.1.1 5.1.0 5.0.1 5.0.0 5.2.1-dev3; do
    rm -f arm_cortexM4lf_math.lib
    case $tag in
	5.5.1 | 5.5.0)
	    wget https://media.githubusercontent.com/media/ARM-software/CMSIS_5/refs/tags/$tag/CMSIS/DSP/Lib/ARM/arm_cortexM4lf_math.lib;
	    ;;
	*)
	    wget https://github.com/ARM-software/CMSIS_5/raw/refs/tags/$tag/CMSIS/Lib/ARM/arm_cortexM4lf_math.lib;
	    ;;
    esac
    if diff -s arm_cortexM4lf_math.lib  /path/to/nRF5-SDK15.3.0/components/toolchain/cmsis/dsp/ARM/arm_cortexM4lf_math.lib; then
	found=true;
	break;
    fi
done
if $found; then :; else
    echo "########## NOT FOUND ##########" >&2
fi