Hint: Use the tree menu to navigate groups of related pages
FreeRTOS Support Archive
The FreeRTOS support forum can be used for active support both from Amazon Web Services
and the community. In return for using our software for
free, we request you play fair and do your bit to help others! Sign up
to receive notifications of new support topics then help where you can.
This is a read only archive of threads posted to the FreeRTOS support forum.
The archive is updated every week, so will not always contain the very latest posts.
Use these archive pages to search previous posts. Use the Live FreeRTOS Forum
link to reply to a post, or start a new support thread.
First of all let me say that FreeRTOS is a Great project!
Problem: I was doing some USB stuff on a AT91SAM7S64 when I was getting Data Aborts (dabtvec), Prefech Aborts (pabtvec) and other unexpected results and eventual crashes (hangups).
Cause: Lack of task stack space. I was setting the task stacks to 100 (in SAM7 it is 100x4 bytes). My estimations of local variable calculations were correct BUT the GOTCHA was the functional depth. I totally ignored the stack usage when functions are called. As you get deeper it uses more stack to store your parameters etc.
Solution: Increased the stack size. Its working like a charm since then!