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#63954 I2C Bus Problem - Debugging

Posted by tonycampbell on 22 August 2015 - 02:59 PM in General Discussion

Definitely something flakey with the I2C on Netduino. It seems to stop (SCL/SDA locked high) at the drop of a hat.

I can reproduce this simply by connecting my Fluke DVM or Scope probe (1M, 100pF) onto the SCL line (it survives SDA probing). Hooking SDA/SCL into a P82B715 also kills it.

I love my netduino but I need reliable I2C. May need to change hardware if there is no fix for this soon (Hope its not a Netduino board hardware layout issue!).




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