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cfernandez
Joined: 18 Oct 2003
Posts: 145
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| CCS Bootloader and WatchDog |
 Posted: Sun Jun 18, 2006 12:34 pm |
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Hi,
I need to have WatchDog in my program and for this I activate this fuse in the CCS bootloader and my program, this is the fuse
| Code: | #include <18F4620.h>
#device *=16
#fuses H4, WDT4096, PROTECT, NOLVP, PUT
#use delay(clock=40000000, RESTART_WDT)
#use rs232(baud=115200, xmit=PIN_C6, rcv=PIN_C7, RESTART_WDT)
#opt 10 |
and in the main put:
| Code: | | setup_wdt( WDT_ON ); |
But the watchdog not work, anybody know where is the problem????
Thank you very much!!
Best Regards, |
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asmallri
Joined: 12 Aug 2004
Posts: 1634
Location: Perth, Australia
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| Posted: Sun Jun 18, 2006 6:14 pm |
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You have reset WDT enabled in #use delay. This means whenever time functions get used (such as delay_ms) or whenever you send a character the WDT is reset. If you program "crashes" in such a manner that it reamins in a loop that uses any delay functions the WDT will never time out.
Because you have used such a large WDT valaue (4096) the easiest solution is to remove the reset wdt from the #use delay statement.
_________________
Regards, Andrew
http://www.brushelectronics.com/software
Home of Ethernet, SD card and Encrypted Serial Bootloaders for PICs!! |
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cfernandez
Joined: 18 Oct 2003
Posts: 145
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| Posted: Mon Jun 19, 2006 9:07 am |
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asmallri,
Thank you very much!, for your answer. I delete RESTART_WDT and now work!.
Best Regards, |
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