Yong Chen Tan wrote:
> 
> Hi, I got some doubts regarding the multi-threading.
> I experience some problems when i do multi-threading.
> The thread seems to stuck at the scanf function. Is it normal? Are there ways 
> to solve this problem?

What's the source of your input?  Notice that the default console (haldiag) does
non-interrupt I/O (in fact with interrupts disabled) and will definitely block
all other threads from running.

If you want interruptable console I/O, you'll need to enable the serial drivers.
Check the archives for lengthy discussions on this point.

> Is eCos multithreading - cooperative or preemptive?

Preemptive.

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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