I am trying to get one Photon to send data to another Photon (with a USB shield) over USB, like so:
where the left Photon talks to the right Photon, which talks to the computer over serial. I cannot get the left Photon to recognize when the right Photon is trying to ask it for USB enumeration data. can anyone please point me in the correct direction?
The Photon does not support USB Host Mode out the box (yet?).
Currently you'd need to build locally and do what's outlined here
Hey all,
I noticed USB host mode is not currently enabled in the firmware for the Photon, so I thought I would do a little research myself to figure out how all this worked. Over the past few days I’ve been familiarizing myself with the different USB modes offered on the STM32F2XX micro controller (mostly by the means of this document and these examples ). Comparing this information and code to the Photon firmware, I noticed the following things:
Only USB_DEVICE_MODE is defined in the Photon f…
Maybe you ping rac146 and BDub or mdma in that thread, to get more background
Could you also post a link to the shield you got there?