Watchdog

A watchdog is a hardware feature that resets the processor if the software stops running.

Once the watchdog is enabled, the software must repeatedly execute “watchdog_toggle” within a specified time, otherwise a reset is performed.
Typically the “watchdog_toggle” is executed somewhere in the application main loop.

Currently there is no VI to configure the watchdog, but as a workaround you can insert the following c-nodes:

enable watchdog

Insert this C-node right after program start

toggle watchdog

insert this C-node into the application main loop

notes:

• This c-nodes work on any target, but only in compiled mode
• Once the watchdog is enabled, debugging gets complicated. For this reason add the watchdog only at the very end of a development cycle
• If you need to survey several parallel loops, insert the “watchdog_toggle” into one loop and survey the loop counters of the others
• Remember that a reset during a file function can corrupt a file system