William "Chops" Westfield wrote:
> On Sep 26, 2009, at 12:39 PM, Quintin Beukes wrote:
> 
>> The problem can be reproduced, however, by finish reading from the
>> serial interface, then later one doing an exit(0). After doing that a
>> few times all serial comms in the future are messed up.
> 
> So you are undoubtably running into the differences between doing a  
> "real" reset and the partial re-start that happens (perhaps) when you  
> do exit(0).   A "real" reset will return most of the peripherals to a  
> default state, as well as restarting the program. A "software reset"  
> might ONLY return the program to its start address,

Now, I do not remember what device this is, but executing the RESET
instruction on a PIC18 (or one of the later PIC16 that has that
instruction) is doing all register initializations that a hard
reset does. What we do not know is if the exit(0) realy executes
a real RESET instruction. If it could, depending on the device...
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