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'[PIC]: PIC18F452'
2003\06\24@073258 by =?us-ascii?Q?Omer_Yalhi?=

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Is there a way to reset the chip with software?  Do I just write:

goto 0x000

regards

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2003\06\24@082048 by

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 RESET

/Jan-Erik.



Omer Yalhi wrote:

> Is there a way to reset the chip with software?

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2003\06\24@093649 by iso-8859-1?Q?=D6mer_Yalhi?=

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That was easy!

-----Original Message-----
From: pic microcontroller discussion list [PICLISTspamKILLspamMITVMA.MIT.EDU]On Behalf Of Jan-erik Söderholm (QAC)
Sent: Tuesday, June 24, 2003 3:19 PM
To: .....PICLISTKILLspamspam.....MITVMA.MIT.EDU
Subject: Re: [PIC]: PIC18F452


 RESET

/Jan-Erik.



Omer Yalhi wrote:

> Is there a way to reset the chip with software?

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2003\06\24@120305 by Byron A Jeff

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On Tue, Jun 24, 2003 at 02:18:51PM +0200, Jan-erik S?derholm (QAC) wrote:
>   RESET

Note that this instruction only changes the registers to its default values.
You'll still need to jump to the reset vector afterwards from my reading of
the instruction.

BAJ

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2003\06\24@121454 by

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Well, it says "Reset all registers and flags that
are affected by a MCLR Reset".

Note that the PCH/PCL are all set to zero on a
MCLR reset...

Jan-Erik.

{Original Message removed}

2003\06\24@122706 by

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See also the "SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT"
on page 24 of DS39564B. Note "RESET Instruction" in the picture.
RESET does *exactly* the same thing as an external MCLR reset
or a "VDD Rise Detect" reset, as far as I can see...

Jan-Erik.


{Original Message removed}

2003\06\24@160242 by Byron A Jeff

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On Tue, Jun 24, 2003 at 06:12:58PM +0200, Jan-erik S?derholm (QAC) wrote:
> Well, it says "Reset all registers and flags that
> are affected by a MCLR Reset".
>
> Note that the PCH/PCL are all set to zero on a
> MCLR reset...

Good point!

BAJ

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2003\06\24@172519 by Olin Lathrop

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> Is there a way to reset the chip with software?

Not really.  You can try to duplicate the startup state of anything you
care about, though.

> Do I just write:
>
> goto 0x000

That won't "reset" the chip.  However, if your initialization code sets
all the state it cares about, then it can be like a reset.


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(978) 742-9014, http://www.embedinc.com

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2003\06\24@173315 by

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(Note that the subject specifies a series 18 chip...)

RESET

Jan-Erik.

PS.
And, as has been vented earlier on the list, it sometimes
pay to check the earlier replys in the thread...
DS.

Olin Lathrop wrote:

>> Is there a way to reset the chip with software?
>
> Not really.  You can try to duplicate the startup state of anything you
> care about, though.

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2003\06\24@175150 by Olin Lathrop

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> (Note that the subject specifies a series 18 chip...)
>
> RESET

Oh, yeah, I didn't notice the subjet line (then again, the body should be
self-contained).


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