Subversion Repositories sockit_owm

/*************************************************************************

* Copyright (c) 2004 Altera Corporation, San Jose, California, USA.      *

* All rights reserved. All use of this software and documentation is     *

* subject to the License Agreement located at the end of this file below.*

**************************************************************************

* Description:                                                           *

* The following is a simple hello world program running MicroC/OS-II.The *

* purpose of the design is to be a very simple application that just     *

* demonstrates MicroC/OS-II running on NIOS II.The design doesn't account*

* for issues such as checking system call return codes. etc.             *

*                                                                        *

* Requirements:                                                          *

*   -Supported Example Hardware Platforms                                *

*     Standard                                                           *

*     Full Featured                                                      *

*     Low Cost                                                           *

*   -Supported Development Boards                                        *

*     Nios II Development Board, Stratix II Edition                      *

*     Nios Development Board, Stratix Professional Edition               *

*     Nios Development Board, Stratix Edition                            *

*     Nios Development Board, Cyclone Edition                            *

*   -System Library Settings                                             *

*     RTOS Type - MicroC/OS-II                                           *

*     Periodic System Timer                                              *

*   -Know Issues                                                         *

*     If this design is run on the ISS, terminal output will take several*

*     minutes per iteration.                                             *

**************************************************************************/

#include <stdio.h>

#include "includes.h"

#include "ownet.h"

#include "temp10.h"

#include "findtype.h"

// defines

#define MAXDEVICES         20

#define ONEWIRE_P           0

// local functions

void DisplaySerialNum(uchar sn[8]);

/* Definition of Task Stacks */

#define   TASK_STACKSIZE       2048

OS_STK    task1_stk[TASK_STACKSIZE];

OS_STK    task2_stk[TASK_STACKSIZE];

/* Definition of Task Priorities */

#define TASK1_PRIORITY      1

#define TASK2_PRIORITY      2

/* Prints "Hello World" and sleeps for three seconds */

void task1(void* pdata)

{

          uchar FamilySN[MAXDEVICES][8];

          float current_temp;

          int i = 0;

          int j = 0;

          int NumDevices = 0;

          SMALLINT didRead = 0;

          //use port number for 1-wire

          uchar portnum = ONEWIRE_P;

          //----------------------------------------

          // Introduction header

          printf("\r\nTemperature\r\n");

      // attempt to acquire the 1-Wire Net

          if (!owAcquire(portnum,NULL))

          {

             printf("Acquire failed\r\n");

             while(owHasErrors())

                printf("  - Error %d\r\n", owGetErrorNum());

             return;

          }

          printf("Acquire done\r\n");

          do

          {

             j = 0;

             // Find the device(s)

             NumDevices = FindDevices(portnum, FamilySN, 0x28, MAXDEVICES);

             if (NumDevices>0)

             {

                printf("\r\n");

                // read the temperature and print serial number and temperature

                for (i = NumDevices; i; i--)

                {

                   printf("(%d) ", j++);

                   DisplaySerialNum(FamilySN[i-1]);

                   didRead = ReadTemperature(portnum, FamilySN[i-1],&current_temp);

                   if (didRead)

                   {

                      printf(" %5.1f Celsius\r\n", current_temp);

                   }

                   else

                   {

                      printf("  Convert failed.  Device is");

                      if(!owVerify(portnum, FALSE))

                         printf(" not");

                      printf(" present.\r\n");

                      while(owHasErrors())

                         printf("  - Error %d\r\n", owGetErrorNum());

                   }

                }

             }

             else

                printf("No temperature devices found!\r\n");

             printf("\r\nPress any key to continue\r\n");

             i = getchar();

          }

          while (i!='q');

          // release the 1-Wire Net

          owRelease(portnum);

}

/* Prints "Hello World" and sleeps for three seconds */

void task2(void* pdata)

{

  while (1)

  {

    printf("Hello from task2\n");

    OSTimeDlyHMSM(0, 0, 3, 0);

  }

}

/* The main function creates two task and starts multi-tasking */

int main(void)

{

  printf("Hello before OS\n");

  OSTaskCreateExt(task1,

                  NULL,

                  (void *)&task1_stk[TASK_STACKSIZE-1],

                  TASK1_PRIORITY,

                  TASK1_PRIORITY,

                  task1_stk,

                  TASK_STACKSIZE,

                  NULL,

                  0);

  OSTaskCreateExt(task2,

                  NULL,

                  (void *)&task2_stk[TASK_STACKSIZE-1],

                  TASK2_PRIORITY,

                  TASK2_PRIORITY,

                  task2_stk,

                  TASK_STACKSIZE,

                  NULL,

                  0);

  OSStart();

  return 0;

}

/******************************************************************************

*                                                                             *

* License Agreement                                                           *

*                                                                             *

* Copyright (c) 2004 Altera Corporation, San Jose, California, USA.           *

* All rights reserved.                                                        *

*                                                                             *

* Permission is hereby granted, free of charge, to any person obtaining a     *

* copy of this software and associated documentation files (the "Software"),  *

* to deal in the Software without restriction, including without limitation   *

* the rights to use, copy, modify, merge, publish, distribute, sublicense,    *

* and/or sell copies of the Software, and to permit persons to whom the       *

* Software is furnished to do so, subject to the following conditions:        *

*                                                                             *

* The above copyright notice and this permission notice shall be included in  *

* all copies or substantial portions of the Software.                         *

*                                                                             *

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  *

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,    *

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *

* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      *

* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING     *

* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER         *

* DEALINGS IN THE SOFTWARE.                                                   *

*                                                                             *

* This agreement shall be governed in all respects by the laws of the State   *

* of California and by the laws of the United States of America.              *

* Altera does not recommend, suggest or require that this reference design    *

* file be used in conjunction or combination with any other product.          *

******************************************************************************/

// -------------------------------------------------------------------------------

// Read and print the serial number.

//

void DisplaySerialNum(uchar sn[8])

{

   int i;

   for (i = 7; i>=0; i--)

      printf("%02X", (int)sn[i]);

}