Objective Development Forums 2012-08-08T09:27:27+02:00 https://forums.obdev.at/app.php/feed/topic/6929 2012-08-08T09:27:27+02:00 2012-08-08T09:27:27+02:00 https://forums.obdev.at/viewtopic.php?t=6929&p=22396#p22396 <![CDATA[Tiny45 USB device not recognized after a reboot (solution)]]> Windows could not recognize it after a reboot. It was recognizeed only after reconnecting.
I solved this problem by adding the following code:

Code: 

# include <avr/wdt.h> / / connect the library, watch dog timer
....
int main (void / / Start of program
{
   ......
   wdt_enable (WDTO_8S); / / give the command to restart the controller through 8 s, if WDT not reseted
   for (; ;) {/ * start the main program loop * /
       if (usbConfiguration! = 0) wdt_reset (); / / reset wd_timer if device connected to the USB and recognized by OS
       ..........
   }
}


That is, after starting the controller checks the value of usbConfiguration, if it is nonzero,
then the connection is successfully established and you can reset WDT.
If within 8 seconds, the device is not determined by the system, it goes to reboot.

Statistics: Posted by obrubov — Wed Aug 08, 2012 9:27 am

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