On Thu, 8 Jan 2009, Farley, Kenneth - AES wrote:
> Jim:
> I'm not interested in accessing the ADC. I am interested in accessing
> Pin 4 of the DIO1 Header per the documentation of the ts-7200 manual.
> The Pin 4 of the DIO1 Header, in the default configuration, is accessed
> via bit 0 of Port C in the EP9302. The address location 0x8084_0008 is
> Port C Data Register and 0x8084_0018 is Port C Directon Register. So the
> question is can I access Pin 4 of the DIO1 Header by PortC Bit0? If so,
> then how?
ok sorry, but in my documentation there is no mention of adc0 and port_C0
sharing the same external pin.
Having had a quick look at the EP9301 manual (there maybe a 9302 manual
these days - for a long time there wasn't), the only thing I can suggest is
making sure you power down the ADC (ADCPD bit = 1 in the DeviceCfg system
controller register) and make sure the ADC interface is disabled (ADCEN bit
= 0 in the same register), then try accessing port C.
I'd be interested in knowing how you get on.
>
> Thanks,
> Ken F
>
.......snipped the silly disclaimer........
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