New nRF52840-DK vs PDK -- which MCU revision?

[cormacc]

See a new landing page on the nordic website for the nRF52840-DK (as opposed to PDK), which states that..

"The nRF52840 replaces the nRF52840 PDK which is not recommended for new designs."

1. Does this new DK use a more recent revision of the MCU?

2. Is it generally available yet? Not currently listed by our local distributor (Mouser/IE)

We've done some evaluation work using the PDK -- looks promising, but the 8MHz SPI limitation of the Engineering A chip revision on the PDK is a deal-breaker for us. Would be great to be able to evaluate using Rev C samples (or even Rev. B -- which I understand from another post is good for up to 16MHz?)

Regards,

Cormac

[Mttrinh]

Hi,

1. Yes, the new DK uses a more recent revision of the MCU.

2. You should contact your RSM, he will be able help you. If you don't know who that is PM me and I will let you know.

So the new high speed SPIM interface, NRF_SPIM3, are present on rev B and later. 32 MHz is the highest supported data rate and this only applies to SPIM3. The other SPI masters are specified to up to 8 MHz. According to this, you can only run for up to 16Mhz on rev B. But this errata is fixed on rev C - so it works now also at 32Mhz.