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]);
}