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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Re: Core id problem
2006-02-16 by arm7dude
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