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Dallas iButton High Resolution Delays with No Preemption

Question asked by Brian Miller on Jan 29, 2016
Latest reply on Feb 15, 2016 by Zeljko Stefanovic

I am using the MQX 4.1 on a custom board derived from the TWR-K70.  I need to interface to the Dallas Semiconductor iButton which requires timing resolutions down to 1uS.  Therefore, I need to write a  delay routine with 1uS resolutions.  And these routines cannot be preempted by MQX or any other interrupts.  How can I create a timing delay routine with this resolution that prevents any preemption in order to preserve these strict timing requirements of the Dallas Semiconductor iButton?  Thanks.

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