Well here is the summary of the whole root of the Problem and its solution:
What we faced:
Its the own designed DSPIC30F4011 board (UDB3), which is designed for Simulation in Xplane specifically . We are using the latest code version. It simulates all the modes well without telemetry (with Serial_None in options.h). But if we enable any telemetry in options.h, micro-controller works well in manual and stabilized mode and in Auto-Pilot mode it gets reset.
We discussed this at the Gentlenav Group at Google Discussion Forum: You can access it below:
So coming back what the actual problem was?
We were using the older version of MPLab IDE (Version 8.36) which did not use legacy-libc file (meaning you could not use it in this version). This file is generally required to reduce the processing power of cpu accessed by the printf and scanf functions in the programs. Due to this the printf and scanf functions increased the micro-controller's cpu processing upto 65% which led to the micro-controller/G.P.S. resetting whenever we switched to the Auto-Pilot mode (ideal cpu processing is around 8%).
How did we solve it?
With the suggestions from -
uavdevboard › GPS resetting in AutoPilot Mode - We switched to MPLab IDE Version 8.9 which used the legacy-libc file and thus we were able to reduce the processing of the cpu of our micro-controller to 10%.
(How to enable legacy-libc? Go to MPLab - Project - Build Options - Project - MPLAB Link30 - Use alternate settings - add/type " -legacy-libc' at the end)
We simulated our program again and this time when we switched to the Auto-Pilot simultaneously with the telemetry it worked just fine.
Special thanks to Robert, Pete and Bill at Gentlenav's Google Discussion Group and Morli at the DIY Drones discussion forum!!!
You may also access this conversation below:
No comments:
Post a Comment