Set up Variant Nano 33 BLE to use internal RC OSC

Other Hardware 3rd Party Boards
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Hello, I have developed a program on the Nano 33 BLE and have moved to a custom hardware implementation. Due to a miscommunication with the hardware designer a different NRF52840 Module was used (BMD-340) instead of the Nina-B306. The BMD does not have an external LF clock on the module and code will not execute without a LF clock source.

Is there a way to make the clock source the internal RC OSC? The only thing I was able to find was a setting in mbed_config.h when change to NRF_LF_SRC_RC did not make a difference.

I know the MCU is good as I was able to run a blinky using a nrf sdk example.

Thanks!

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