Other Parts Discussed in Thread: TPS3431
From prior projects, any safety related application with a microcontroller , we would use a HARDWARE WATCHDOG ..like a TPS3431...we would "kick the dog" in SW from the uP(send a pulse out from uP to WD)...if the WD chip didnt get kicked , we'd shut down everything...the thought being Hardware trumps software for safety apps,
does the Hercules have a HW watchdog embedded in it?...I know all uP have a SW watchdog embedded, where you upload or reset a register every so often to keep the processor going....but again, this is internal and is a SW thing...
in the qualifications of the Hercules, does it actually negate the use of such a HW device for monitoring? (i.e. is it qualified without such HW monitoring)...
we also would use a similar approach for power....(hardware monitors power...if power dips/drops on one/several lines, shut things down)...
does the Hercules have a voltage level HW watchdog embedded in it?...
I see that the TPS65381 is designed specifically for use with the hercules and has all the hardware watchdogs in it....am I correct in saying this TPS65381 is HARDWARE watchdogs/monitoring?