[ECOS] Help me !!, Hello world on out target

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Hi All!
I am porting eCos on our target which is simmilar with CMA230.
Now, I am working with ecos-1.3.1 (net-release, 27-03-2000).
I was building and testing GDB stubs ROM.
Downloading is OK, but RAM application is not executed.
CPU core of our target is ARM7 and support  FIQ.  But IRQ is not supported.
Is there anything to change in HAL for FIQ ?
While downloading, Is GDB Stub ROM operated by polled or interrupt ?
Thanks a lot !