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Re: Re: eCos linking question


Andrew Lunn wrote:
So .data and .bss get addresses from the internal RAM.. but I don't
get why, they should get addresses from ROM, following
.gcc_except_table. According to the startup assembly code, these
sections should then get copied into ram at startup.
I know I need to use the internal ram too, since the exception vectors
(.rom_vectors and .fixed_vectors) need to start at address 0x0.
I think it should be possible to run code from my external flash or am
I mistaken?
Any suggestions would be greatly appreciated.

Make sure you install/lib/target.ld is up to date. I think the dependencies are broken, so it does not get remade when you change the .ldi files etc.

Also, give the .ld file a good look - it's saved as the result of the preprocessing, so all of your macros should have been expanded. This way you can see if it really looks like you think it should.

--
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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