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Craeting and using Task

mans
Expert 1005 points
Other Parts Discussed in Thread: CCSTUDIO

Hello,

 I am new in DSP/BIOS and I want to learn how to create and use a task in DSP/BIOS. I am using 620sim target (a simulator). I wrote a simple hello world and it works well. Now I want to add a new task to it. I use visual configure to add a task to project ( with the name of Task).

My code is as follow:

#include <std.h>
#include <log.h>


extern LOG_Obj trace;
void main()
{
 LOG_printf(&trace,"Program started\n");
}

 

Void Task(Arg id_arg)
{

 LOG_printf(&trace,"In Task\n");
 TSK_disable();
 IDL_run();
 TSK_enable();
}

When I compile the code, I am getting the following warning:

[Linking...] "C:\ProgramFiles\CCStudio_v3.3\C6000\cgtools\bin\cl6x" -@"Debug.lkf"
<Linking>
>> C:\\ProgramFiles\\CCStudio_v3.3\\MyProjects\\TestTask\\TestTaskcfg.cmd, line 96: warning:
               symbol _Task from file
               C:\\ProgramFiles\\CCStudio_v3.3\\MyProjects\\TestTask\\Debug\\main.obj being redefined

and when I am running this code, the output is as follow:

0 Program started

 

This means that Task never called. What is the problem and how can I solve it?

I have another question: Is there any web page that has all the documents related to dsp/bios and their name and title, so I can go there and select the appropriate one for reading?

Regards

 

 

 

  • 0
    TI__Mastermind 18130 points

    There are two things you need to change with the code snippet you posted. First, you need to make sure you include the BIOS-generated configuration header file. Second, you need to point the task object to the task function you create in your source file. For example, if you created a function named myTask() then the Task object would point to _myTask inside the .tcf file. 

    mans said:
    #include "bios_file_namecfg.h"

    Void myTask(Arg id_arg)
    {

     LOG_printf(&trace,"In Task\n");
     TSK_disable();
     IDL_run();
     TSK_enable();
    }



    *edit* I've tweaked my post a bit.

     

  • 0 in reply to TimHarron
    Expert 1005 points

    Thanks.

    Now my main.c is as follow:

     

     

     

    #include <std.h>
    #include <log.h>
    #include "TestTaskcfg.h"

    void main()
    {
     LOG_printf(&trace,"Program started\n");
    }

    Void Task1(Arg id_arg)
    {

      LOG_printf(&trace,"In Task1\n");
      TSK_disable();
      IDL_run();
      TSK_enable();

    }

    and my *.tcf  is as follow:

    /* The following DSP/BIOS Features are enabled.  */
    bios.enableMemoryHeaps(prog);
    bios.enableRealTimeAnalysis(prog);
    bios.enableRtdx(prog);
    bios.enableTskManager(prog);

    bios.MEM.instance("SDRAM0").createHeap = 1;
    bios.MEM.BIOSOBJSEG = prog.get("SDRAM0");
    bios.MEM.MALLOCSEG = prog.get("SDRAM0");
    bios.LOG.create("trace");
    bios.TSK.create("Task1");
    bios.TSK.instance("Task1").order = 1;
    bios.TSK.instance("Task1").allocateTaskName = 1;
    bios.TSK.instance("Task1").fxn = prog.extern("Task1");

     

    bios.TSK.instance("TSK_idle").order = 1;

     

    // !GRAPHICAL_CONFIG_TOOL_SCRIPT_INSERT_POINT!

    prog.gen();

     

    And I am getting this error:

     
    [main.c] "C:\ProgramFiles\CCStudio_v3.3\C6000\cgtools\bin\cl6x" -g -fr"C:/ProgramFiles/CCStudio_v3.3/MyProjects/TestTask/Debug" -d"_DEBUG" -@"Debug.lkf" "main.c"
    "main.c", line 19: error: declaration is incompatible with "TSK_Obj Task1" (declared at line 23 of "TestTaskcfg.h")
    1 error detected in the compilation of "main.c".

    Could you please help me?

    Best regards

  • 0 in reply to mans
    Expert 1005 points

    I found the problem! The name of function and the name of task are the same. I renamed the task function (in main.c source code to Task_1 and it is working now.

     

  • 0 in reply to mans
    TI__Mastermind 24340 points

    Hi mans,

    I'm glad you found it! Right on target! The task name and the name of the function the Task calls can not be the same...

     

  • 0 in reply to Mariana
    Expert 1005 points

    Thank you and Tim help.

    I have another question but I think I should open another topic as it is not about creating and using task but on task scheduling.