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lwIP Rowley demo on SAM7X

Posted by Nobody/Anonymous on June 19, 2006
I can't even seem to set this demo loaded, keep getting "loader verify failed". I'm using Crossstudio 1.6 with a IAR jlink jtag (Seggar I think)and a brand new AT91SAM7X256-EK. I've used other programs written with crossworks and they all load & debug well using their CTL. I'm sure its a simple setup issue, anyone point me in the right direction please.

RE: lwIP Rowley demo on SAM7X

Posted by Nobody/Anonymous on June 19, 2006
I have only used a CrossConnect on the SAM7 so cannot answer directly. Have you compared the j-link settings between the project that does work and the project that does not?

1/ Open a project that you can get working on the SAM7 using a j-link.

2/ Select Targets from the Target menu in CrossStudio.

3/ Right click on the Segger j-link entry in the targets pain the opens, then select properties from the pop up menu.

4/ Note down the settings that are displayed.

5/ Open up the lwIP demo and do the same to check that the settings are the same in this project also.

Failing that, try the Rowley tech support. I have found them to resolve problems quickly.

RE: lwIP Rowley demo on SAM7X

Posted by Nobody/Anonymous on June 23, 2006
Try setting the "speed" property of the j-link from 0 to 1000 or so.

RE: lwIP Rowley demo on SAM7X

Posted by David Williams on July 14, 2006
I have noticed with the newer Sam7X's that the Rowley tools do report a verify failure after programming. If you do a memory compare, however, everything seems to be OK.

RE: lwIP Rowley demo on SAM7X

Posted by Nobody/Anonymous on July 17, 2006
I had this problem too. Make sure that you have explicitly loaded support for the AT91SAM7X256-EK into CrossWorks. You can find the relevant file at:

http://www.rowleydownload.co.uk/arm/packages/index.htm?http://www.rowleydownload.co.uk/arm/packages/Atmel_AT91SAM7S_AT91SAM7X_AT91SAM7A3.htm

RE: lwIP Rowley demo on SAM7X

Posted by Nobody/Anonymous on July 19, 2006
Download build 3 of version 1.6 (CrossWorks). Seems better.


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