Thanks Guile and Shah-lascaux. Yes the watchdog on LPC has features that allows it to be used just as an interval timer. There is your answer Jurgen. >Message: 5 > Date: Thu, 16 Mar 2006 13:29:30 -0500 > From: "K B Shah-lascaux" <kbshah@...> >Subject: Re: Re: LPC2138 Watchdog > >Hi, >Philips Semiconductors Preliminary User Manual > >LPC2119/2129/2194/2292/2294 ARM-based Microcontroller > >Watchdog Mode Register (WDMOD - 0xE0000000) > >The WDMOD register controls the operation of the Watchdog as per the >combination of WDEN and RESET bits. > >WDEN WDRESET > >0 X Debug/Operate without the Watchdog running > >1 0 Debug with the Watchdog interrupt but no WDRESET > >1 1 Operate with the Watchdog interrupt and WDRESET > >Once the WDEN and/or WDRESET bits are set they can not be cleared by >software. Both flags are cleared by an external reset > >or a Watchdog timer underflow. > >----- Original Message ----- > From: Guillermo Prandi > To: lpc2000@yahoogroups.com > Sent: Thursday, March 16, 2006 12:36 PM > Subject: [lpc2000] Re: LPC2138 Watchdog > > > Jaya: the LPC allows you to choose between reset and interrupt when > Watchdog is triggered by means of the WDMOD register. If you set > WDMOD to 0x01, you'll get a normal IRQ through the VIC when the > watchdog is triggered; if you set it to 0x03, you will get a reset > (which is similar to a hardware reset). > > Guille > > --- In lpc2000@yahoogroups.com, Jayasooriah <jayasooriah@...> wrote: > > > > Hi Juergen, > > > > You cannot use the watchdog as a periodic timer interrupt because > on > > watchdog interrupt the CPU is reset almost equivalent to an > external reset. > > > > Jaya Send instant messages to your online friends http://au.messenger.yahoo.com
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Re: LPC2138 Watchdog
2006-03-16 by Jayasooriah
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