I’m integrating a device with a Photon using SPI. In hooking up the pins, I’m a bit confused about which pins are appropriate.
I looked at the documentation here: http://docs.particle.io/photon/photon-datasheet/#3-3-pin-out-diagrams and compared it with the P0 schematic here: http://docs.particle.io/photon/photon-datasheet/#6-5-schematic-p-wi-fi-module
Specifically, it seems to me that there’s a discrepancy in the pin for SPI SS. The pinout spreadsheet from the Photon Datasheet Section 3.3 lists SPI1_SS as matching Photon Pin A2. However, pin A2 is lined up with the P0 pin MICRO_GPIO_6 in that same spreadsheet.
The P0 schematic would seem to confirm this, as it shows SPI_SS/PA4 corresponding to Photon pin DAC.
Am I missing something here, or should the spreadsheet in the Photon Datasheet section 3.3 be updated to list SPI1_SS as matching pin DAC?