Re: [ts-7000] TS-7200 PortB DIO/COM3 as Inputs

[skot croshere <>]

According to the 7200 Manual;

http://www.embeddedarm.com/documentation/ts-7200-manual.pdf

Pin 2 on the DIO1 header is ground.

-skot

On Jul 13, 2008, at 1:34 PM, linna_lisa wrote:

Hey,

I'm using PortB as DIO with the direction register set up as 0x0F so I 
can use the first 1-4 as outputs and 6-9 as inputs (pin 5 is ground). 
The outputs work fine but when I'm trying to use the inputs a l l the 
pins are high even though they shouldn't be. For a while I was trying 
to figure out why my (simple) code wasn't working, then I put a few 
print statements in to see where it was hanging up and found it was 
going to a part of the code which was based on one of these inputs 
being high. I knew the input shouldn't be high but just to make sure i 
took out all the connections to verify it couldn't possibly be coming 
from my circuit. With nothing going to any of the inputs the pins are 
a logic '1', which must be coming from somewhere else on the board. 
Anyone dealt with this before? 

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