topic unable to open and write file using MPC5554 in Classic/Legacy CodeWarrior

unable to open and write file using MPC5554

tkm_moog — Wed, 15 Oct 2008 10:02:03 GMT

I am using MPC5554EVB with code Warrior version 2.3 and Nexus (P&E) debugger.

I want to open a file and write some data or string into the file..

I have added fopen() and fwrite() with MSL macros and source files in my default project.. and runnning it

on NEXUS (P&E) debugger. I have not found any errors while compiling and linking with codewarrior.

But after running test.elf build file on P&E debuuger its not opening any file..no run errors..

Please guide me what needs to be used to use file handling in Codewarrior for MPC5554 board.

Thanks

Taranath

Re: unable to open and write file using MPC5554

CrasyCat — Thu, 16 Oct 2008 16:41:48 GMT

Hello

Support for file I/O function is not available in the MPC55xx bare board tool chain.

Usage of file I/O requires a file system and probably an operating system.

Look at {Install}\Help\PDF\MSL C Reference.pdf.

In chapter "Configuring MSL" there is a section speaking about configuring file I/O.

Look at "Configuring Input and Output".

Basically you need to provide your implementation of fopen, fwrite, and so on.

If you have an underlying operating system providing file I/O capability, you can they hook up the OS system call to the MSL function.

CrasyCat

Re: unable to open and write file using MPC5554

tkm_moog — Fri, 17 Oct 2008 09:57:54 GMT

Thanks for your reply Crasy,

I followed the Help/PDF/MSL c reference ..in that configuring input and output. (Console IO)

I am adding these in my default project c source file, which was created while opening the default project in the IDE.

#inlcude<stdio.h>

#inlcude<stdlib.h>

and the following MSL pragmas is set in my c file to..

#define _MSL_OS_DISK_FILE_SUPPORT 1

#define _MSL_CONSOLE_SUPPORT 1
#define _MSL_BUFFERED_CONSOLE 1
#define _MSL_CONSOLE_FILE_IS_DISK_FILE 1
#define _MSL_FILE_CONSOLE_ROUTINES 1
#define _MSL_NULL_CONSOLE_ROUTINES 0

i was able to build with this, and this is running in nexus debugger(P&E) but no file is opened by this..

I have attached the project folder which i am using..

Thanks

Taranath

Copy of MPC5554test.zip

Message Edited by t.dowe on 2009-08-31 04:13 PM

Re: unable to open and write file using MPC5554

CrasyCat — Fri, 17 Oct 2008 18:33:27 GMT

Hello

Did you provide an implementation for the file I/O function?

Function available in the MSL library are empty. You need to provide source code for fopen.

CrasyCat

Re: unable to open and write file using MPC5554

tkm_moog — Mon, 20 Oct 2008 09:12:18 GMT

Hello Crasy,

Thanks for your suggestion, i will try to provide the fopen implementation for file I/O.

Message Edited by 05-Oct-2008 on 2008-10-20 03:15 AM

Re: unable to open and write file using MPC5554

tkm_moog — Wed, 22 Oct 2008 12:34:33 GMT

Hi Crasy,

I tried to provide the fopen implementation.. i have observed some functions in

${CWFOLDER}/MSL/MSL_C/MSL_Common/src/file_io.c ..does these functions have the full implementation for fopen(), fclose() etc..

can you give more details about this..

Thanks

Taranath

Re: unable to open and write file using MPC5554

CrasyCat — Wed, 05 Nov 2008 18:28:21 GMT

Hello

This will not be enough. Functions in module file_io.c are calling other functions like __open_file, __read_file, __write_file, .. which need to be implemented.

The file \PowerPC_EABI_Support\MSL\MSL_C\PPC_EABI\SRC\file_io.stub.c includes containers for these functions.

But you need to provide the actual implementation.

CrasyCat

Re: unable to open and write file using MPC5554

tkm_moog — Wed, 05 Nov 2008 19:03:17 GMT

Hi Crasy,

I am trying to add some functions to these...if i find and problems in between i will get back to you..

please suggest me which is better..without having file I/O is that good enough to dump data using the break point ..Actually i am using RTRT with this..

Thanks

Taranath

Re: unable to open and write file using MPC5554

CrasyCat — Tue, 11 Nov 2008 18:33:25 GMT

Hello

According to my understanding you are trying to dump content of memory when you reach a breakpoint.

Is that correct?

The debugger delivered with MPC5554 comes from P&E.

So I would recommend you to ask them how you can achieve that.

They have a forum at following URL:

http://www.pemicro.com/support/forums_index.cfm

CrasyCat

Re: unable to open and write file using MPC5554

tkm_moog — Wed, 12 Nov 2008 10:28:02 GMT

Hello CrasyCat,

I am able to dump memory from the debugger back to RTRT..

I have one question if i am able to work with file handlers in Codewarrior thats fine, then no break point is required in P&E debugger for RTRT to collect the runtime data.. does Frescale have the updated library which is not available in the current version for the file handling. Then instead of breakpoint i can Automate the process by collecting data in a file.

I tried to update the functions available in the MSL library for file handling but i am not understanding this completley.

Thanks

Message Edited by 05-Oct-2008 on 2008-11-12 02:35 AM

Re: unable to open and write file using MPC5554

CrasyCat — Wed, 12 Nov 2008 20:48:55 GMT

Hello

I do not know is something like that is available.

I would recommend you to submit a service request to ask for this library.

Click here to submit a service request.

CrasyCat

Re: unable to open and write file using MPC5554

tkm_moog — Tue, 10 Feb 2009 18:15:46 GMT

Hi Crasy,

I am able to build the project in RTRT using the library files of Code Warrior.

Its working fine with no stubs and I am able to debug it in nexus debugger.

Now I have a problem with the stubs in RTRT, its giving undefined Stub name..

Following are the errors I am getting by adding the stubs..........................

TestRT attolcc1 - INFO: Function UartControlStatus renamed

Linking .\PowerPc5554\Test.elf...
### mwldeppc.exe Linker Error:
#   undefined: 'UartControlStatus'    #Stub call
#   Referenced from 'CheckGroundInterlocks' in COMCheckGroundInterlocks.o
### mwldeppc.exe Linker Error:
#   Link failed.
exit from the link Function before return
Executing .\PowerPc5554\Test.elf...
No trace PowerPc5554\TTest.rio generated.

Looking for more information . I can give the necessary files if you need.

Thanks,

Taranath

Re: unable to open and write file using MPC5554

CrasyCat — Thu, 12 Feb 2009 18:10:02 GMT

Hello

I would recommend you to submit a service request for that.

Click here to submit a service request.

Make sure to attach a reproducible project and installed product information to the service request.
To generate the required information:
- Start CodeWarrior
- Open the project
- Select "Help" -> "Pack and Go" and follow instructions on the screen.

Attach the generated .zip file to the SR.

CrasyCat

Re: unable to open and write file using MPC5554

tkm_moog — Fri, 13 Feb 2009 10:18:45 GMT

Thanks for your reply Crasy,

I would do that.

Taranath

Re: unable to open and write file using MPC5554

FournierDavid — Sat, 11 Apr 2009 02:49:40 GMT

Hi everybody,

i saw the post from Taranath and i wonder what can be the solution to his problem... since i have the EXACT SAME PROBLEM right now when i try to use RTRT with CodeWarrior for Mobile GT.

Hi Crasy,

I am able to build the project in RTRT using the library files of Code Warrior.

Its working fine with no stubs and I am able to debug it in nexus debugger.

Now I have a problem with the stubs in RTRT, its giving undefined Stub name..

Following are the errors I am getting by adding the stubs..........................

TestRT attolcc1 - INFO: Function UartControlStatus renamed

Looking for more information . I can give the necessary files if you need.

Thanks,

Taranath

I am pretty new to RTRT so if you have any clue and/or a solution for this problem, I'd like to hear that!

Thanks in advance!!

David

Re: unable to open and write file using MPC5554

tkm_moog — Mon, 13 Apr 2009 09:19:58 GMT

Hi David,

Use this option for the Preprocessor, it works fine for me with the integers but i have problem with the floating point values,,, please let me know if you are able to solve this...

SystemP("$cc -E -ppopt pragma -ppopt line -ppopt full $defines $includes \"$src\" > atltmp.i");

Taranath

Re: unable to open and write file using MPC5554

FournierDavid — Tue, 14 Apr 2009 22:22:12 GMT

Thank you very much Taranath, it works fine for me too. You saved the day!

If i use floating point (but for now i don't think so) i will let you know.

Have a good day!