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Old 02-24-2016, 05:56 AM   #1
nishakunasekaran
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Registered: Oct 2011
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GPIO or I2C


Hi,

The board i'm working has a I2C slave that has watchdog timer.

This watchdog timer can be reset either using a I2C command or by toggling a Processor's GPIO pin.


Which method should i use and why?

What is the speed difference?

I2C speed is 100kb/s.
GPIO samples at 111MHz.

Thanks in advance.

/Nisha K
 
Old 02-24-2016, 08:23 AM   #2
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Location: The Netherlands
Distribution: CentOS 7, Ubuntu 12.04, Linux-Mint 17.3
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GPIO should be faster(intuitively). What kind of research have you done until now?
 
  


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