Eddie Dawydiuk wrote:
> There is an error in the EP9301 User's Guide, I don't have the manual in
> front of me but the proper bit is bit 0 as documented in Technologic
> Systems manual, you will find bit 1 is incorrect as documented in Cirrus
> Logic's EP9301 User's Guide. The terminology in the schematic and in the
> User's Manual does differ in some places as you have found although all
> of the information is correct as far as I know.
The main document I quoted from was the TS-7250 manual. My other reference is
the EP9301 manual (although the chip on the TS-7250 is an E0 revision of an
EP9302). The EP9301 manual indicates that the IRQ's from Port F bits 0 to 2
should be on GPIO0INTR to GPIO2INTR (IRQ's 20 to 22).
In practice I am pulsing pin 8 of DIO1 which seems to be generating interrupts
via bit 1 of Port F which I am counting using an interrupt handler on IRQ 20
(rather than the expected IRQ 21).
--
Cheers!
Kevin.
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