Send out ADV packet in <100ms after power on the chip

[bihu]

I have download latest S130 SDK. And I try to send ADV in 100ms. Now it takes >= 250 ms. I use the scope and find SOFTDEVICE_HANDLER_INIT takes 248ms on PCA10028 board.

The softdevice I used is from: www.nordicsemi.com/.../32925

How can I achieve this?

[endnode]

This depends on LF clock start time and if you use external crystal it can take up to 1s (according to product documentation). If you use internal RC or synth you will advertise in few milliseconds.

[bihu]

I change it to use SRC_SYNTH, it only takes ~16ms. Thanks!

[endnode]

Just note that Nordic Soft Device isn't officially supported with SYNTH LF clock source (you should use RC, however it works for me as well).