PCA10056 nRF52840 Q1AAAA Unstable

[Dave_couling]

I'm finding my PCA10056 nRF52840 Q1AAAA development kit to be acting very strangely. 

1) I takes almost 3x as long to program as a PCA10040

2) Generally I have to program it twice as the first time usually doesn't work

3) When debugging often it will start in a random area and crash i.e nrf_atomic module or crash at nrf_long_init().  But when I program it a second time it run fines.  

Are these symptoms of silion issues with this revision of chip?

-DC

[Kenneth]

Hi,

You are using a very early engineering version of the nRF52840 that is not tested. Make sure to order a new nRF52840-DK, they are all using the production hardware revision of the nRF52840 now (PCA10056 v1.0.0, build code QIAAC0).

Best regards,
Kenneth