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[Paparazzi-devel] lisa - m upload problem

From: Refik Sever
Subject: [Paparazzi-devel] lisa - m upload problem
Date: Mon, 30 Sep 2013 22:02:03 +0300



Last week, we had a crash. We thought that it was due to interference from GSM base station. Today, we had another crash and we found that the two crashes were not due to interference. 


We flied with the same hex file uploaded to Lisa-M. During flight in auto1, there was no problem. When we switched to auto2, the autopilot again freezed. It was exactly the same behavior with the previous crash, which also happened when we switched to auto2.


After the crash, we tested the autopilot on the ground. We send take off command in auto1, and then we manually switched to standby. When we switched to auto2, and it again freezed.


After that, we re-build the same airframe file and upload the code. Now, everything is normal. It seems that it did not upload correctly.


We are uploading the file using USB cable. Does it verify the uploaded file by reading it back? How can I make it verify the file?


Is is possible that it uploads wrong and partially runs the code? If this is the case, doesn't the MD5 signature become wrong?




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