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???
11/30/11 16:25
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#184960 - SiLabs watchdog
Responding to: ???'s previous message
Erik Malund said:
PS re "the SILabs chips have an excellent interanl watchdog" I have found that the internal watchdogs work well on chips with a large analog content and not too well on chips with no/very little analog content. I guess this is due to "when doing analog anyhow" to include a good supervisor is simple, if you have to add this analog function to an otherwise digital chip, you take shortcuts.


The watchdogs are great, but when you run the F120 at Full Tilt Boogie, you find yourself petting the dog more often than you'd like. The timer is 21 bits wide in all of the SiLabs parts I've used, and 21 bits at 98 MHz is 20 ms, so there it is.

-a

List of 25 messages in thread
TopicAuthorDate
P89V51RD2 And Flash Magic            01/01/70 00:00      
   please suggest            01/01/70 00:00      
   reset button            01/01/70 00:00      
      Reset Button            01/01/70 00:00      
         reset circuit            01/01/70 00:00      
            That's the fundamental flaw with RC resets!            01/01/70 00:00      
   Use a MAX700            01/01/70 00:00      
      Rest supervisor            01/01/70 00:00      
         How Many Times            01/01/70 00:00      
            This will continue until ...            01/01/70 00:00      
               Power dip            01/01/70 00:00      
                  real, but worse if flash            01/01/70 00:00      
                  note, that here the main problem is NOT power related...            01/01/70 00:00      
                     Yes            01/01/70 00:00      
                        the ultimate joke            01/01/70 00:00      
                           SiLabs watchdog            01/01/70 00:00      
                              clarification            01/01/70 00:00      
                                 Beware flash erase time            01/01/70 00:00      
                           brownout detection            01/01/70 00:00      
                              well,            01/01/70 00:00      
                  It's not the spec's ... it's the lack of them.            01/01/70 00:00      
   Reset Chip?            01/01/70 00:00      
      Why Ask???            01/01/70 00:00      
         Thanks            01/01/70 00:00      
            a plethora of possible chips            01/01/70 00:00      

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