|
Hi, CCK
External reset circuits are useful when you do not want to reset at the voltage given by the Brownout ... ( batt powered devices i.e. )
or if there is no brownout on the device !!!...
They may also be useful if you want particular power-on timings for peripherals ...
one other evident use is NOT to reset the processor, but enter a failsafe section on lowbatts ... with reset circuit connected to an " ordinary " pin !!!
MC 33x64 devices are great for that !!!
Alain
************************************************** ***********************
Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
************************************************** ***********************
IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
*****************************************
|
Most of my designs have MCLR (on those PICs that need it) strapped straight to Vdd... don't bother with any Resistor. By the end of this year I'll have had over a million PICs shipped... never any problems...
The only time I'd consider a supervisory chip is in a life or death situation... eg elevator control (or my coffee maker)...
|
Thanks for the replies guys and gal. I guess my next run of boards I will lose this added expense.
Members who have read this thread : 0You do not have permission to view the list of names.
Posting Permissions
Bookmarks