Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
Erik Malund
11/30/11 07:17
Read: 396 times
Mt Airy, Nc
USA


 
#184954 - real, but worse if flash
Responding to: Per Westermark's previous message
It is quite common that the power switch results in bounces on the power, in which case the RC reset "consumes" itself based on the first power on, while the microcontroller needs a proper reset pulse timed from the last of the multiple power-on events.

real, but worse is that if there is flash memory involved the risk of an "accidental erase" exist in the above scenario, but even worse, there is no reset as the power drift down after a power off.

Erik

List of 25 messages in thread
TopicAuthorDate
P89V51RD2 And Flash Magic      Arif Deshmukh      11/26/11 18:48      
   please suggest      Andy Neil      11/26/11 23:27      
   reset button      Jan Waclawek      11/27/11 01:52      
      Reset Button      Arif Deshmukh      11/27/11 09:26      
         reset circuit      Jan Waclawek      11/27/11 13:04      
            That's the fundamental flaw with RC resets!      Andy Neil      11/28/11 14:40      
   Use a MAX700      Matthias Arndt      11/29/11 00:15      
      Rest supervisor        Steve M. Taylor      11/29/11 03:56      
         How Many Times      Michael Karas      11/29/11 05:03      
            This will continue until ...      Richard Erlacher      11/29/11 15:08      
               Power dip      Per Westermark      11/30/11 05:01      
                  real, but worse if flash      Erik Malund      11/30/11 07:17      
                  note, that here the main problem is NOT power related...      Jan Waclawek      11/30/11 07:17      
                     Yes      Per Westermark      11/30/11 07:42      
                        the ultimate joke      Erik Malund      11/30/11 08:20      
                           SiLabs watchdog      Andy Peters      11/30/11 09:25      
                              clarification      Erik Malund      11/30/11 09:43      
                                 Beware flash erase time      Maarten Brock      12/01/11 10:03      
                           brownout detection      Maarten Brock      12/01/11 10:07      
                              well,      Erik Malund      12/01/11 10:09      
                  It's not the spec's ... it's the lack of them.      Richard Erlacher      11/30/11 12:43      
   Reset Chip?      Arif Deshmukh      11/29/11 21:04      
      Why Ask???      Michael Karas      11/29/11 21:33      
         Thanks      Arif Deshmukh      11/30/11 00:29      
            a plethora of possible chips      Erik Malund      11/30/11 07:19      

Back to Subject List