I try to compile this on Arduino 1.8.13 but can't link the arm_math.h functions

[deftio]

When I try to compile this it can't linke arm_rfft_init_q15. How do I add that to nano BLE sketch / toolchain?

[thomasfischer089]

I have the same problem. Did you find a solution? Best regards

[deftio]

If you use the online compiler from arduino.cc then I got it to work but I can't get it to build on my laptop stand alone...

[thomasfischer089]

When you use the version 1.1.6 in the board manager than it works. Not with the 1.3.0

[deftio]

You're right I got 1.1.6 to work. Thanks!

[thomasfischer089]

No problem. Maybe someon find a fix in 1.3.0

[maxgerhardt]

Can you try

https://github.com/DaleGia/Nano33BLESensor/issues/6#issuecomment-776717279

[carlosperate]

If you use the online compiler from arduino.cc then I got it to work but I can't get it to build on my laptop stand alone...

Looks like the online compiler doesn't work these days either :/

[carlosperate]

arm_math.h has now been released as an Arduino library:

• https://github.com/arduino-libraries/Arduino_CMSIS-DSP
• https://github.com/arduino/ArduinoCore-mbed/issues/7#issuecomment-842179221

I'm currently having an issue compiling it with the "Arduino Mbed OS Nano Boards" core v2.1.0 and v2.0.0, once that is fixed we should have a simple way to compile this again: https://github.com/arduino/ArduinoCore-mbed/issues/228

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Edit: Turns out the issue was due to using an older version of the IDE, after upgrading to v1.8.15 it compiled correctly 😃

[x5115x]

Install "Arduino_CMSIS-DSP" library will fix this error.

[deftio]

Closing this as its an old issue and fixes are mentioned in the thread.