Software reboot

Projects Programming
1

Is there any possibility to programmatically reboot the Arduino?

Ogogon.

2

Yes.

3

And how?

Ogogon.

4

Huh. Despite the many discussions about rebooting / resetting the processor the topics are surprisingly difficult to locate through search.

First, you need a watchdog friendly bootloader. Optiboot (the newest bootloader) and ADAboot are good choices.

Second, you add this to the top of your Sketch...

<avr/wdt.h>

Finally, you call this...

void reboot( void )
{
wdt_enable(WDTO_15MS);
while(1) {};
}

Here is a nice summary and a way to make it work with watchdog hostile bootloaders...
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1222941939/12#12

More details here...
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1229317367/all

5

First question, is why do you want to reset your processor in run time?
There are more ways than just using the bootloader.

void (*reset)(void) = 0x0000;
or
asm volatile ("jmp 0");

And there are more ways.

6

Jumping to address zero does not reset / reboot the processor.