bugAVR C Runtime Library - Bugs: bug #45420, avr/wdt.h: Allow enabling watchdog...


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bug #45420: avr/wdt.h: Allow enabling watchdog in interrupt mode

Submitter:  Matthijs Kooijman <matthijs>
Submitted:  Fri 26 Jun 2015 07:29:48 PM UTC
Category:  Header Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Header files
Status:  None Assigned to:  None
Percent Complete:  0% Open/Closed:  Open
Release:  Any Fixed Release:  None

Fri 26 Jun 2015 07:29:48 PM UTC, original submission:  

wdt.h provides a wdt_enable() function, which conveniently abstracts enabling the watchdog and setting the timeout at the same time.

A similarly easy way to enable interrupt (and probably also interrupt + reset) mode would be a useful addition.

I'm not sure how this API would look. This could be a a function wdt_enable_interrupt() and wdt_enable_reset_and_interrupt() to set the timeout and enable just the interrupt or both reset and the interrupt (function names would need some work).

Alternatively, having a separate function to set the timeout and one to enable (just) the interrupt mask (which I think doesn't require the WDCE dance) would also work, then thos can be combined for interrupt-only mode, and wdt_enable with the enable interrupt mask function would enable system+reset.

Matthijs Kooijman <matthijs>


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