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LPC213X - Watchdog and IAR JLink

Hello world. I'm at the end of a project and I've started using the watchdog (disabled during debug). When I need to make some changes to the program I found extemely hard ...

Re: Watchdog in LPC2000

--- In l...@yahoogroups.com, "Nishant Agrawal" wrote: > > Hi Nagaraju, > > I think the watchdog can be disabled by accessing the CPSR & changing the > value of bit I...

LPC2102, with i2c and watchdog   [2 Articles]

hello, i\'m a newbie (and also an outsider of electronics) so my question sounds a bit stupid... now i\'m using LPC2102, and the watchdog works perfectly (device reboots when...

LPC2194 Watchdog

Hi, is it possible to change the Watchdog periode, if the Watchdog is enabled? -- Steffen Rose ...

Watchdog and external Interrupt problem   [7 Articles]

Hi I am nearing the end of our first project with the LPC2294 and need to implement the watchdog. I am pretty sure I have it setup correctly, and with it i...

Watchdog rest not clean?   [9 Articles]

I am having problems recovering after a watchdog reset. I enable the watchdog, then to test it, I put the cpu into a loop, toggling a pin connected to a logic probe...

Re: LPC2138 Watchdog

Hi, how can I use the watchdog as a periodic timer? >using the watchdog with interrupt has two options, you use it as a >periodic timer interrupt or for debugging,... The...

does watchdog work ?   [4 Articles]

I can't get the watchdog timer to work. I set up with the following // set watchdog to be 1 second WDTC = 15000000; // enable the watchdog interrupt WDM...

Re: LPC2138 Watchdog   [2 Articles]

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 --- In lpc2...

Watchdog and ISP   [4 Articles]

Dear Forum Members, I am using LPC2106 for time attendance application. I have enabled WATCHDOG at the start of my code. It is working fine. Sometimes I need to upgrade the ...

LPC2138: watchdog as periodic timer ?   [2 Articles]

Hi guys, I searched the messages and I couldn't find a final answer concerning this issue. Is it possible to use the watchdog as a periodic timer or not ? According LPC21...

Watchdog problem

Hello everybody, I am facing a unique problem. I am using a LPC 2103 and the watchdog sometimes doesn't seem to reset the system once it hangs up. I tried hang...

Reg: WATCHDOG TIMER

Hello Friends, I am working in lpc2106. I didn't using any Watchdog timer. I want to know that does the watchdog timer will automatically restart ARM when it is stru...

gnu arm - lpc register definitions   [7 Articles]

I have a question about register definitions (in WinARM). I read in user manual that WD for instance has four registers: 0xE000 0000 0xE000 0004 0xE000 0008 0xE000 000C Shoul...

LPC236x watchdog timer problem

Hello, I just started using the watchdog timer in my application, and I discovered that it was resetting the chip (LPC2364 and LPC2368) even though the counter was not expir...

Watchdog issues   [3 Articles]

All work fine with WDOG enabled. After heavy interrupt load on Timer0 (100us), watchdog sporandicaly restart the uP. Feed sequence is enlosed betwen interrupt enable/disable ...

Do not over-feed the Watchdog (?)   [3 Articles]

Can someone point me to a definitive / application reference for the Watchdog circuit used in the LPC2xxx - )one that is better than the user manual for LPC2292) I recently st...

External watchdog and flash loader   [15 Articles]

Hi, I'm working on an LPC2138 design and just moved into ESD testing. After some ESD hits there was no damage, but the processor would be left not running. Impleme...

LPC2378 and watchdog   [8 Articles]

Hi, The erratasheet of the LPC2378 explain that feed the watchdog cause a reset, so how use the watchdog with the LPC2378 ??? :s Thanks ...

Need help setting up the watchdog timer to generate an interrupt

I'm trying to get the watchdog timer on the 2138 to timeout and generate an interrupt. If I have the reset bit set in WDMOD it does reset after 5 seconds, but...

LPC2148 - Differences between external reset and internal (watchdog) reset ?

Does anyone have any information or experience of the above ? I'm using Keil RealView on a custom LPC214x board. I've noticed that, following a watchdog reset, the USB doesn'...

WatchDog   [2 Articles]

Has anyone had any problems using the watchdog in the LPC2138?? I can not seem to keep it updated reliably. Thanks, Mike ...

Re: Watchdog in LPC2000   [2 Articles]

--- In l...@yahoogroups.com, "Nagaraju" wrote: > > Thanks Mr.Nishant and Mr.Derbaier, > I understood your reply, but when I have feeded the watch dog in > mast...

Re: LPC2138 Watchdog

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: ...

Re: what's the reason of restart

--- In l...@yahoogroups.com, "wilnfl" wrote: > > Hello All: > I face a problem, I use LPC2468 chip and I use RTX os, after I > start the system, the program will ju...

watchdog restart - WDTR vs BODR

Hi, When I restart the MCU (LPC 2378) with the watchdog, the WDTR flag is never set, there is only the BODR flag... POR and EXTR works properly. It is written that the fl...

i need to know WatchDog.c   [2 Articles]

have any one have written watchdog program for LPC2104 please guide me! source code. or how to write n calculate for watchdog how to determine reload time ??? Thanking you! W...

Re: WDT reset while in an ISR   [15 Articles]

--- In l...@yahoogroups.com, "relentless_6995" wrote: > Turning on WDT for the first time. I was testing it a few different > ways. One way involves a Data Abort IRQ. My ...

How to stop watchdog messing up J-Link debugging

I've found that having the watchdog enabled causes problems with debug mode, e.g. when you stop, then try restarting things generally don't happen, presumably as the WDT has kept ...

LPC2138 Watchdog   [3 Articles]

When enabled and timed out, the LPC2138 watchdog with generate an interrupt and may cause a reset depending on the state of WDMOD:WDRESET bit. I can see t...

Re: Bootloader not always invoked after reset with P0.14 low   [2 Articles]

Hi Guile, I may be misunderstanding the problem. You made the comment: >It looks like this behavior is 'by design' so there is no other workaround >than switching off the un...

Does value of variable in SRAM save after watchdog reset?   [3 Articles]

Hello! I have one question for membership of this group. In my programm i want to save value of variable, that is situated in SRAM, after watchdog reset. I declare my variabl...

LPC Reset..   [3 Articles]

Is there any way to reset the processor from within the firmware? I am currently using the Watchdog feature, and I know if I stop toggling the watchdog then ...

Re: LPC2368 ISP problems   [2 Articles]

Hi, I experienced some problem with ISP but it was due to watchdog, make sure your application is running with the watchdog enabled before the programmation through ISP. I ...

Problem with watchdog   [17 Articles]

Hi all. I am trying to enable the watchdog but the result is a total hang of the board. Not even the bootloader is possible to reach after the crash and I have to rea...

Internal Watchdog - pros and cons   [7 Articles]

Hi All I am thinking about the protection provided by the internal watchdog in the LPC210x. There is a brown-out reset controller on my board which ensure ...

Watchdog problem   [10 Articles]

Hi When i execute : WDTC=0x3FFFFFFF; WDMOD= 3; WDFEED = 0xAA; // First Watchdog feed sequence WDFEED = 0x55; the cpu seems te reset almost immediate, Any Idea?...

lpc 2214 data ram corruption when return from watchdog   [4 Articles]

Hi everyboby, I'm working with lpc2214 and I've got a problem coming back from watchdog: the ram location 0x40000128 is corrupted (ie its value is changed). Does someone have the...

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 contro...