Hi Utsavi,
You are not giving too much information to provide a suggestion. So, let me start the the basics. You could go and take a look to the TAD tool (MQX menu).
1. I would start by checking the MQX errors option and check if something is wrong there.
2. The stack usage is also a good start to review if you are a lack of memory.
3. Task summary will tell you if each one of the task has errors, status of each one and what are they waiting for in case they are stuck.
4. Kernel log is your last change to get data of what is going on in the system. The example of how to use that is in C:\Freescale\Freescale_MQX_4_0\mqx\examples\klog
I hope this helps you to troubleshoot the issue.
Regards,
Garabo
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