[ECOS] SH4 Interrupt Handling

Kiran C kiranc@tataelxsi.co.in
Wed Dec 4 23:11:00 GMT 2002


Hi,

I have a small probleming trying to set up

the interrupt handling......I am working on an SH4 processor(SH7751)

I am trying to write a  monitor program...

In the entry point of my program...which is loaded at 0x8c020000 (RAM)

I set the VBR to ( a Interrupt Handler function address - 0x0000600) (..The
Interrupt handling is the same as in SH3...)

As such now when an interrupt occurs my Handler function should be called...

I realize that I need to set up the INTC et al...but am quite ignorant about
that...

Can u help me detaling the step by step intialization procedure....

I am using REDBOOT to run my proram...soon after I change the VBR....a reset
occurs and control goes back to the REDBOOT Monitor program....

What am I missing out???

Thanks,

Kiran


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