I converted my house-control application from NP to NP2 including moving from CW2's wonderful One wire implementation (FW 4.1) to the new standard NETMF One wire implementation. Everything worked in the test configuration, but when I exchanged the board in the 'real' configuration, One Wire did not Work.
I am using GPIO 13 for One wire and using a pull up of 1.8K. This was ok with NP but not with NP2.
Is there a difference between the two hardware interfaces? - Any advices?
Well - I could do some tests with various resistors, but the distance between the test bench and my 'real' implementation is 150 miles, so I need to do it right Next time!
NP2 OneWire problem
Started by OZ8ET, Dec 17 2012 09:17 AM
1 reply to this topic
#1
OZ8ET
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Posted 17 December 2012 - 09:17 AM
#2
Chris Walker
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Posted 17 December 2012 - 11:47 PM
Hi OZ8ET,
The best way to diagnose these things is, for better or worse, with a logic analyzer.
How do your test setup and the production setup differ, hardware- and software-wise?
Chris
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