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FreeRTOS Support ArchiveThe FreeRTOS support forum is used to obtain active support directly from Real Time Engineers Ltd. In return for using our top quality software and services for free, we request you play fair and do your bit to help others too! Sign up to receive notifications of new support topics then help where you can.
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RTOS Trace utilitiesPosted by Sachin Bhujbal on November 20, 2009 Dear All, I am using FreeRTOS Trace Facility with STR9. I used StartTrace & EndTrace function by passing buffer to it. then I passed that buffer to HyperTerminal & captured file in it. Then I copied the HyperTerminal Data to another text file & saved it as "trace.bin". Then I run "tracecon_little_endian.exe" which given trace.txt. I copied that txt file data to excel which given me below results 14548735.0000005 65568.0000005 65568.00000032 14483488.00000032 14483488.0000005 2097184.0000005 2097184.00000032 13762592.00000032 13762592.0000007 65568.0000007 65568.00000032 13762592.00000032 13762592.0000007 2097184.0000007 2097184.00000032 13041696.00000032 13041696.0000009 65568.0000009 65568.00000032 13041696.00000032 13041696.0000009 2097184.0000009 2097184.00000032 12320800.00000032 12320800.00000011 65568.00000011 65568.00000032 12320800.00000032 12320800.00000011 2097184.00000011 2097184.00000032 11599904.00000032 11599904.00000013 65568.00000013 65568.00000032 11599904.00000032 11599904.00000013 2097184.00000013 2097184.00000032 10879008.00000032 10879008.00000015 65568.00000015 65568.00000032 10879008.00000032 10879008.00000015 2097184.00000015 2097184.00000032 540672032.00000032 540672032.00000017 65568.00000017 65568.00000032 540672032.00000032 540672032.00000017 2097184.00000017 2097184.00000032 9437216.00000032 9437216.00000019 65568.00000019 65568.00000032 9437216.00000032 9437216.00000019 2097184.00000019 2097184.00000032 539361312.00000032 539361312.00000021 65568.00000021 65568.00000032 and so on..... but log shows that more than 8 tasks are running but I have only 8 tasks which are running and In time scale it is showing 65568.000000 at most of the places, which I feel its error in reading. TaskList function gives following output TaskCANHandler R 4 60 3 TaskKeypadLCD R 4 154 6 TaskEMT R 4 74 5 TaskPulser R 4 74 4 TaskInit R 4 370 0 TaskMemory R 4 74 7 IDLE R 0 152 2 ,ðŸå,ðŸå,ðŸå,ðŸ B 4 70 1 If we see last line it is got corrupted. I saw same output of both function for many times. Please verify whether it is correct or not & please guide me for correct tracing. Thanks & Regards Sachin D. Bhujbal RE: RTOS Trace utilitiesPosted by Dave on November 20, 2009 Are you checking that the buffer is not being overflowed, and that the task stacks are not overflowing? Corruption like you are seeing in the task list is often caused by stack overflow. http://www.freertos.org/Stacks-and-stack-overflow-checking.html
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