Replacing Nrf51 chip with Nrf52 chip

[soumil]

Hi,

What all changes would be needed in the PCB if we want to migrate from NRF51 series chip to NRF52 series chip.

[RK]

You need to re-layout the board to account for the fact the pinout is entirely different. You need to change the matching circuit because the nRF52 matching circuit is entirely different, you need to update the power supply components and you need to change the crystal for a 32MHz one.

So .. basically .. just about everything.