[NRF51822] NRF_CLOCK_LFCLKSRCS

[Terry]

Hi, I want to know what's the differences between the NRF_CLOCK_LFCLKSRC_RC_250_PPM_xxMS_CALIBRATION and NRF_CLOCK_LFCLKSRC_XTAL_xx_PPM where xx means a decimal number. when I use the NRF_CLOCK_LFCLKSRC_XTAL_20_PPM as the param of BLE_STACK_HANDLER_INIT(), my board doesn't work, and if I use the NRF_CLOCK_LFCLKSRC_RC_250_PPM_500MS_CALIBRATION, my board can works, but it seems very slow to show log info while I use Master Control Panel to find services. (NRF_CLOCK_LFCLKSRC_XTAL_20_PPM is work well on NRF51822 PCA10004 board), what's the problem? Can anyone give me some advice?

[Ole Morten]

Please take a look at this question for information on the different clock sources.

Beware that there should be no functional difference between the sources, so I suspect this speed difference is caused by something else. If you need more help, can you please post a separate question, possibly including your code and a more elaborate description of the problem?

PS: It's possible to use tags here, so you don't have to write the chip in the question title. Instead, you can just write nRF51822 in the tags field when posting. :)

[Terry]

copy that, thank you.