all boards on 4.0 use ChibiOS (except linux) The difference between Pixhawk1-1M and Pixhawk1 is that the 1M has lots of stuff removed, like ADSB to get the build under 1M size. Mission planner tends to install the same build as you had on previously, I suggest you download the .apj from the link and upload it using the load custom firmware button.
Hi Pete,
For the ADS-B param, I compare 2 FC, one is Revo, the other is Pixhawk.
This param appears in MP when connected to Revo, but does not appear when connected to Pixhawk.
Copter in both cases is 4.0.3. I have not yet bought the ADS-B receiver.
Pls see the links to the screen shot of “Message” for both FC.
Could you please explain why the param does not appear in the case of Pixhawk ?
Thank you