9 years, 8 months ago.

BLEnano(nRF51822)'s HFCLK source?

I'm using RedBearLab's BLEnano, with the libraries of BLE_API and nRF58122. I checked the value of register HFCLKSTAT, and it was 0x1000, which means that nRF51822's HF clock is running with internal 16MHz RC. Is nRF51822 running with internal RC 16MHz oscillator, not with crystal 16MHz oscillator? If so, why?

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