Yahoo Groups archive

Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

Re: Core id problem

2006-02-17 by Serdar

--- In lpc2000@yahoogroups.com, "arm7dude" <arm7dude@...> wrote:
>

Thanks for your attention dude,
but your advice doesnt work at all..
I can programme the flash only twice and i dont know how..
Is there any thing else to do? 

Thanks for your help... 






> Serdar,
> 
> Your jtag speed is set too fast. The segger driver 3.10d will help 
a
> lot. You can also set the speed to fixed at 1000, assuming your 
CCLK
> is 12mhz or better. These are set in the JLink selection in 
Options.
> 
> Hope this helps
> 
> --- In lpc2000@yahoogroups.com, Serdar Demirdag <SerdarDemirdag@>
> wrote:
> >
> > Hi everyone,
> >    
> >   I obtain the following message when i try to download the code
> with J-Link;
> >    
> >   "Could not identify firmware(identification string has length 
of 0)"
> >    
> >   or 
> >    
> >   "Received 0xFFFFFFFF as core Id.
> >   No communication with core"
> >    
> >   I checked all J-Link connections and LPC pins.
> >    
> >   I use;
> >   MCU :  LPC2131
> >   Comp:  IAR 4.30A
> >    
> >   I hope someone can help me.
> >   Have a nice day,
> >    
> > 
> > 		
> > ---------------------------------
> >  Yahoo! Autos. Looking for a sweet ride? Get pricing, reviews, &
> more on new and used cars.
> > 
> > [Non-text portions of this message have been removed]
> >
>

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