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rsrumrill

20 Posts
Posted - 02 Jun 2005 :  15:38:07  Show Profile  Email Poster
Can I rightly assume that PA0-2 can be used as analog inputs (0-2.5V range) and PA3-4 can be used as digital outputs at the same time?

Can PA5-7 be used as "low power" digital outputs if I keep in mind the 33kohm series resistor (normally part of the AD input divider)?

hchin

30 Posts
Posted - 10 Jun 2005 :  11:57:02  Show Profile  Email Poster
This was taken off line but here is the relevant piece to the response for those who have similar questions.

For your questions about Port A (PA0-7), you should be able to use them as you described because we are phasing out those options (setup 1,2 and 3) in the ADSmartIO so that you can get the flexibility you need with the IOs.
You can choose to have any pin be a digital input or output. You can configure as inputs any Port A lines you wish to use as A/Ds. Be careful not to write a "1" to those bits, or you will enable the software pull-ups, which will affect your A/D signal.

See our forum topic 306 for more details on changes/revision to the ADSmartIO.
Edited by - hchin on 10 Jun 2005 13:42:00
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