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Nordic NRF51822 flashing

Dear all We did nordic beacon board in that we not able to flash the device We are checked core voltage 1.2V and 1.7V are coming .But i want to confirm external CLOCK will generate before code is flashing or after code is flashed then only this clock can turn on.

Regards naga

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0 Øyvind Karlsen over 9 years ago

Hi,

Have you tried connecting a spectrum analyzer to the output of the balun? Also where is your pi-network to match the chip antenna to 50ohm? Please see the general PCB design guidelines, it contains a lot of useful information on designing your layout.
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0 Øyvind Karlsen over 9 years ago

Hi,

Have you tried connecting a spectrum analyzer to the output of the balun? Also where is your pi-network to match the chip antenna to 50ohm? Please see the general PCB design guidelines, it contains a lot of useful information on designing your layout.
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