During the Summer of 2013, I loaded Arduplane 2.74b into my APM 2.5. This being the default available at the time. I was also using the current Mission Planner at the time ( not sure which version ). In November 2013 I wanted to re create 2.74b in a second APM but found the current Mission Planner at that time had a problem with past firmware versions. As a result of a posting last November, Mission Planner was corrected.
However the 2.74 version that recent Mission Planners now load is 2.74 and not 2.74b. I have tried running a range of Mission Planner versions from last Summer but these also now only show 2.74 not 2.74b
I have looked at firmware.diydrones.com and have found several .hex files relating to 2.74b. dated 16th to 19th July 2013. Should I be using the latest of these ?. Can anyone confirm this. Is this where Mission Planner gets it's files from?
I have downloaded the source for 2.74b from the ardupilot-mega/downloads/list ( dated 15th July ) and even managed to compile it on Arduino IDE on one occasion (although I now get Arduino.h and other .h errors). I did however save the .hex file from this but has a size of 665 kb .The files in firmware.diydrones.com are all about 570 kb.
I am keen to re create 2.74b as after hundreds of flights have found it reliable and want to use a known program in a second bixler.
Replies
Yes you can use these hex files, there is a text file beneath the hex file to tell you the firmware version, but I think you will need to hunt for the exact exact version of 2.74b that you are looking for.
You can download the hex file into your downloads folder and then use mission planner/install firmware/load custom firmware tab to load the firmware from there, so you don't need to faf about compiling with arduino, unless of course you want to!
Martin:)