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Altera_Forum
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20 years ago

interfacing to custom logic with an interrupt

I have made an interface to custom logic using an avalon slave port with the following signals, clk, irq, readdata, address, read, chipselect the idea is that custom logic c...
Altera_Forum's avatar
Altera_Forum
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20 years ago

thanks Scott,

I'm pretty sure that the logic is not the problem now. It resets the irq when it detects a read and chipselect going high.

I've tested this by reading the register outside of the ISR (when the irq is high), and sure enough everything goes fine.

So...

Why when I'm in the ISR and read from this register, doesn't the read get asserted?

and...

Why doesn't the DSR ever get called?