nRF52805CAAA WLCSP pin

[djcrosby]

How are the 28-UFBGA pin assignments translated to numbering used to specify I/O pin numbers in the code. Is this as simple as P0.0 => 0, P0.1 => 1,...? I have seen similar questions asked for other chips, but none of the responses actually answered the question. One indicated port pins could be specified as P0.0, P0.1... but not in any of the code/documentation that I have seen

[Simonr]

Hi

Please check out the pin assignment section in the nRF52805 PS for details here.

For example, ball D6 = P0.00, and ball E1 = ANT, and so on.

Best regards,

Simon

[djcrosby]

Simon,

We already have a board design and yes I do have the datasheet showing pin assignments. The issue at hand here is that Nordic software application examples are referencing I/O ports with a number (0,1,2,3...) but I have not seen how this assignment is being defined for different chips. It might be as easy as I mentioned above: P0.0 = 0, P0.1=1... P1.0=8, etc. I just have not seen this called out anywhere in the documentation.

[Simonr]

Ah okay, sorry about the misunderstanding then. What SDK and SDK version are you using for development exactly? Either way, since the nRF52805 only has the one port (P0.xx) the pin numbering should be as simple as what you suggest, where 0 = P0.00, 1 = P0.01 and so on until 21 = P0.21, and so on...

Best regards,

Simon