I have incorporated code to make use of the airspeed sensor in the arducopter software. I based the code changes on this post
https://groups.google.com/forum/#!topic/drones-discuss/wzwCs3Xk7y4
and help from the Tiltrotor Team who had done it for their project. Between the two I was able to get the code compiled.
I'm using the PX4 toolchain to compile code. Compiling code using the console, not eclipse. I started with the tag for arducopter 3.2.1 and modified the code from there. I first compiled the code with no changes and uploaded to the pixhawk just to test my compilation process. Uploading code using MP 1.3.24. Code uploaded successfully however I did not get tones associated with the completion of a firmware load. I got the tones associated with normal startup. The code seems to function fine. Why would I not get the tones associated with a successful upload??? Am I doing something wrong?
Knowing that I could compile and upload successfully for a unmodified AC3.2.1, I modified the code for the airspeed sensor. I got it to successfully compile. however when I upload it to the pixhawk, I don't get any tones just blinking B/E, blinking ACT, and solid white status light. I've attached a zip file that has my log of changes as well as each of the changed files. In most cases I commented at the beginning with my last name (geyer) to allow easier searching for changes. Any help would be appreciated!
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Just wanted to provide an update in case any one has started to look at this. I was able to figure out the issue. The parameter.pde and parameter.h files were not right. Once I got them straightened out everything worked. I even got the proper tones after the firmware load which is puzzling. Thanks in advance to anyone who may have looked at this and thanks again to Trevor and Mike!