Help with ncrt0 please!

Hello,
I have some problems when trying to compile a file.c with the nc30
compiler.
The chip I use is a mitsubishi. I don't know anything about assembly.
I just modified the C source. I read the manual of the nc30 compiler
(nc30ue.pdf).
I was able to obtain the AA.r30 file from the AA.c.
Now, what is ncrt0.a30? When I lauch ln30 I get the following error
messages:

ncrt0.a30 172 Error (asp30): Undefined symbol exist 'heap_top'

or

ncrt0.a30 96 Error (asp30): Section name is missing 'data_FO'

The number of errors is 54! They are all like these.
What can I do?
As I have already said I don't need to modify any file except the
AA.c, but because I don't know even what the ncrt0 file is, I'm lost.
I know the informations I gave are not exhaustive, so ask everything
you need, I'll try to answer...
Please help me!
Thanks a lot,
Luke

In article <d48d96b5.0409010650.237c60d@posting.google.com>, sagoweb@hotmail.com (Luke Phoenix) wrote:
>Hello,
>I have some problems when trying to compile a file.c with the nc30
>compiler.
>The chip I use is a mitsubishi. I don't know anything about assembly.
>I just modified the C source. I read the manual of the nc30 compiler
>(nc30ue.pdf).
>I was able to obtain the AA.r30 file from the AA.c.
>Now, what is ncrt0.a30? When I lauch ln30 I get the following error
>messages:

ncrt0.a30 is the startup file. It includes file sect30.inc. Both of those files 
need to be modified for your hardware and application.

>
>ncrt0.a30 172 Error (asp30): Undefined symbol exist 'heap_top'
>
>or
>
>ncrt0.a30 96 Error (asp30): Section name is missing 'data_FO'
>
>The number of errors is 54! They are all like these.
>What can I do?
>As I have already said I don't need to modify any file except the
>AA.c, but because I don't know even what the ncrt0 file is, I'm lost.
>I know the informations I gave are not exhaustive, so ask everything
>you need, I'll try to answer...
>Please help me!
>Thanks a lot,
>Luke

pjb658@NOSPAMcomcast.net (Paul J. Bosselaers) wrote in message news:<wzqZc.9498$3l3.5278@attbi_s03>...

> 
> ncrt0.a30 is the startup file. It includes file sect30.inc. Both of those files 
> need to be modified for your hardware and application.

Thank you very much. I found the sect30.inc and the errors vanished! I hope
I won't need to modify those files, as they should be already ok.
Thanks again!
Luke

I have another problem.
I have the ncrt0.r30, sect30.inc and my cb_e464.r30. When I run ln30 I
get the following errors:

Linkage Editor (ln30) for M16C Family Version 4.00.01  
Copyright 2000, MITSUBISHI ELECTRIC CORPORATION
AND MITSUBISHI ELECTRIC SEMICONDUCTOR SYSTEMS CORPORATION
All Rights Reserved.

now processing pass 1
processing "ncrt0.r30"
processing "CB_E464.r30"
processing "Libraries"
now processing pass 2
processing "ncrt0.r30"
sect30.inc 151 Error (ln30): ncrt0.r30 : '_VoutAltaSoglia1' value is
undefined
sect30.inc 156 Error (ln30): ncrt0.r30 : '_VinAlta' value is undefined

    [...]

processing "CB_E464.r30"
../Common/CB_E464.c 133 Error (ln30): CB_E464.r30 :
'_posizioneInRx0Buffer' value is undefined
../Common/CB_E464.c 134 Error (ln30): CB_E464.r30 :
'_posizioneInRx1Buffer' value is undefined

    [...]

 == too many errors and warnings ==

There are so many errors that I think I have the wrong files, but as I
don't know what these files are I don't know what to look for.

The lines 145-151 of sect30.inc are the following:

	.section	vector		; variable vector table
	.org	VECTOR_ADR 

	.lword	dummy_int		; BRK	(vector 0)
	.org	(VECTOR_ADR+16)
	.glb	_VoutAltaSoglia1
	.lword	_VoutAltaSoglia1	

Again, I'm lost.
Once I manage to obtain the .x30 file from the .c file I should be ok.
I have some versions of the files, but I don't know which is the right
one!
Please help me!
Thank you very much
Luca

In article <d48d96b5.0409020136.336f28f8@posting.google.com>, sagoweb@hotmail.com (Luke Phoenix) wrote:
>I have another problem.
>I have the ncrt0.r30, sect30.inc and my cb_e464.r30. When I run ln30 I
>get the following errors:

Sounds like you are missing a file.

>
>Linkage Editor (ln30) for M16C Family Version 4.00.01  
>Copyright 2000, MITSUBISHI ELECTRIC CORPORATION
>AND MITSUBISHI ELECTRIC SEMICONDUCTOR SYSTEMS CORPORATION
>All Rights Reserved.
>
>now processing pass 1
>processing "ncrt0.r30"
>processing "CB_E464.r30"
>processing "Libraries"
>now processing pass 2
>processing "ncrt0.r30"
>sect30.inc 151 Error (ln30): ncrt0.r30 : '_VoutAltaSoglia1' value is
>undefined
>sect30.inc 156 Error (ln30): ncrt0.r30 : '_VinAlta' value is undefined
>
>    [...]
>
>processing "CB_E464.r30"
>.../Common/CB_E464.c 133 Error (ln30): CB_E464.r30 :
>'_posizioneInRx0Buffer' value is undefined
>.../Common/CB_E464.c 134 Error (ln30): CB_E464.r30 :
>'_posizioneInRx1Buffer' value is undefined
>
>    [...]
>
> == too many errors and warnings ==
>
>There are so many errors that I think I have the wrong files, but as I
>don't know what these files are I don't know what to look for.
>
>The lines 145-151 of sect30.inc are the following:
>
>        .section        vector          ; variable vector table
>        .org    VECTOR_ADR 
>
>        .lword  dummy_int               ; BRK   (vector 0)
>        .org    (VECTOR_ADR+16)
>        .glb    _VoutAltaSoglia1
>        .lword  _VoutAltaSoglia1        
>
>Again, I'm lost.
>Once I manage to obtain the .x30 file from the .c file I should be ok.
>I have some versions of the files, but I don't know which is the right
>one!
>Please help me!
>Thank you very much
>Luca