[ECOS] interrupt handling

[Ashutosh]

Dear all,

We had ported eCos on ARM7. I want to know about the context switching
between two threads. When a thread is running and a interrupts occurs, ISR
is executed and after completion of ISR , DSR is posted. When DSR is
executed , and a thread with higher priority is also running, Then context
switch takes place to the highest priority thread. I am not able to
understand how this switching takes places from DSRs.
I have gone through the source code and documents also but could not found
any thing, which can remove my doubts.

Thanks ,
Ashutosh Vyas


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