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Message

Re: JTAG Download Errors

2004-06-23 by douglasbolton

--- In lpc2000@yahoogroups.com, "Chris Graham" <chris_e_gr@y...> 
wrote:
> I'm programming an lcp2106 with the IAR tools and J-Link, and 
program was
> dieing.  As a check I turned on JLink's ability to verify a flash 
download
> by reading it back and comparing.
> 
> The verification fails with a series of errors like this:
> 
> Target inconsistency detected at memory address 0x000000F9
> Target inconsistency detected at memory address 0x00000024
> Target inconsistency detected at memory address 0x00000028
> Target inconsistency detected at memory address 0x000000FC
> Target inconsistency detected at memory address 0x00000101
> Target inconsistency detected at memory address 0x00000104
> Target inconsistency detected at memory address 0x0000012C
> Target inconsistency detected at memory address 0x00000110
> Target inconsistency detected at memory address 0x00000020
> Target inconsistency detected at memory address 0x00000070
> Target inconsistency detected at memory address 0x000000A8
> Target inconsistency detected at memory address 0x000000D4
> Target inconsistency detected at memory address 0x00000121
> 
> These are always in the same place in memory.  I lowered the JTAG 
speed to
> minimum, and this did not help, and the errors stayed exactly the 
same.  I
> also switched between ARM the THUMB mode and they stayed the same.
> 
> It's a new chip, and other big programs that I've downloaded with 
Philips
> downloader run fine.  I don't have another chip handy to do a 
comparison.
> 
> Is this likely to be faulty flash memory?  How often does this 
happen in new
> chips?  Could it be a power supply problem?  (although the voltages 
seem
> correct)
> 
> Thanks for any advice you can offer.
> 
> - Chris Graham


I had similiar problems with IAR,Jlink and the 2106

I found that if you had code in the 2106 flash with the PLL enabled I 
would get similiar problems as above. In order to program the 
flash/debug with Jlink the 2106 flash had to be blank or running code 
without the PLL enabled.

Also make sure in the debugger options for Jlink you have -

1. philips LPC flash download ticked.

2. reset asserts hardware reset pin ticked.

In the general options target -

1. The chip radio button is selected with the lpc2106.i79 file

with all this done and after many days of frustration I'm now happily 
using Jlink to debug

Doug

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