I just did an Arduino deployment of my model and Arduino is not longer able to compile for the Nano 33 BLE. I get this error:
arm-none-eabi-g++: error: ../../../../../../Users/lberndt/Library/Arduino15/packages/arduino/hardware/mbed/1.1.4/variants/ARDUINO_NANO33BLE/libs/libmbed.a: No such file or directory
arm-none-eabi-g++: error: ../../../../../../Users/lberndt/Library/Arduino15/packages/arduino/hardware/mbed/1.1.4/variants/ARDUINO_NANO33BLE/libs/libcc_310_core.a: No such file or directory
arm-none-eabi-g++: error: ../../../../../../Users/lberndt/Library/Arduino15/packages/arduino/hardware/mbed/1.1.4/variants/ARDUINO_NANO33BLE/libs/libcc_310_ext.a: No such file or directory
arm-none-eabi-g++: error: ../../../../../../Users/lberndt/Library/Arduino15/packages/arduino/hardware/mbed/1.1.4/variants/ARDUINO_NANO33BLE/libs/libcc_310_trng.a: No such file or directory
exit status 1
Error compiling for board Arduino Nano 33 BLE.
I switched back to the previous version of the EI library for my model and it compiles fine. It looks like I downloaded that version on July 4th. I checked and I have the latest version of the Nano 33 Board package. I did a quick check and it looks like some CMSIS-NN code may have been added in the interim.