DS18B20 MODEL For Proteus

Fragrance said:

hi

In respect of vsmlibs and andrew here is the model for DS18B20 for proteus with test stuff and lib file model dll based copy model in model folder and lib in lib folder enjoy

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Listo said:

Thank to Mr. fragrance for have help me with usefull pdf file.
But I want try the model with CodeVisionAVR demo and the ds18b20.hex.
I know that work with my board but he cannot work with Proteus.
He say no DS18B20, why ???

Pleeeeeease help me.

//Felipe

Code:

/* Multipoint thermometer with LCD display
   using the Maxim DS18B20
   1 Wire bus temperature sensors

   CodeVisionAVR C Compiler
   (C) 2000-2005 HP InfoTech S.R.L.
   [url]www.hpinfotech.ro[/url]

   Chip: ATmega8515
   Memory Model: SMALL
   Data Stack Size: 128 bytes
   
   THE ATmega8515 CLOCK FREQUENCY MUST BE 3.6864 MHz

   The DS18B20 sensors are connected to
   bit 6 of PORTA of the ATmega8515 as follows:

   [DS18B20]     [STK500 PORTA HEADER]
    1 GND         -   9  GND
    2 DQ          -   7  PA6
    3 VDD         -  10 +5V

   All the temperature sensors must be connected
   in parallel
   
   AN 4.7k PULLUP RESISTOR MUST BE CONNECTED
   BETWEEN DQ (PA6) AND +5V !
*/
#asm
    .equ __w1_port=0x1b
    .equ __w1_bit=6
#endasm

/* Use an 2x16 alphanumeric LCD connected
   to PORTC as follows:

  [LCD]   [STK500 PORTC HEADER]
   1 GND- 9  GND
   2 +5V- 10 VCC  
   3 VLC- LCD contrast control voltage 0..1V
   4 RS - 1  PC0
   5 RD - 2  PC1
   6 EN - 3  PC2
  11 D4 - 5  PC4
  12 D5 - 6  PC5
  13 D6 - 7  PC6
  14 D7 - 8  PC7
*/

#asm
    .equ __lcd_port=0x15
#endasm

#include <lcd.h> // LCD driver routines
#include <ds18b20.h>
#include <delay.h>
#include <stdio.h>

char lcd_buffer[33];

/* maximum number of DS18B20 connected to the 1 Wire bus */
#define MAX_DEVICES 8

/* DS18B20 devices ROM code storage area */
unsigned char rom_code[MAX_DEVICES][9];

main()
{
unsigned char i,j,devices;

lcd_init(16);
lcd_putsf("CodeVisionAVR\n1 Wire Bus Demo");
delay_ms(2000);
lcd_clear();

/* detect how many DS18B20 devices
   are connected to the 1 Wire bus */
devices=w1_search(0xf0,rom_code);
sprintf(lcd_buffer,"%u DS18B20\nDevice detected",devices);
lcd_puts(lcd_buffer);
delay_ms(2000);

/* display the ROM codes for each device */
if (devices)
   {
   for (i=0;i<devices;i++)
       {
       sprintf(lcd_buffer,"Device #%u ROM\nCode is:",i+1);
       lcd_clear();
       lcd_puts(lcd_buffer);
       delay_ms(2000);
       lcd_clear();
       for (j=0;j<8;j++)
           {
           sprintf(lcd_buffer,"%02X ",rom_code[i][j]);
           lcd_puts(lcd_buffer);
           if (j==3) lcd_gotoxy(0,1);
           };
       delay_ms(5000);
       };
   }
else
while (1); /* stop here if no devices were found */

/* configure each DS18B20 device for 12 bit temperature
   measurement resolution */
for (i=0;i<devices;)
    if (!ds18b20_init(&rom_code[i++][0],20,30,DS18B20_12BIT_RES))
       {
       sprintf(lcd_buffer,"Init error for\ndevice #%u",i);
       lcd_clear();
       lcd_puts(lcd_buffer);
       while (1); /* stop here if init error */
       };

/* measure and display the temperature(s) */       
while (1)
      {
      j=1;
      for (i=0;i<devices;i++)
          {
          sprintf(lcd_buffer,"t%u=%+.3f\xdfC",j++,ds18b20_temperature(&rom_code[i][0]));
          lcd_clear();
          lcd_puts(lcd_buffer);
          delay_ms(500);
          };
      };
}

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beto_mmf said:

hi you have to set the fuses or set the clock of the microcontroler in the proteus buecause the 1 wire protocol is high precision in the time of wave form , cofigure this well and this problem of the 0 devices will be resolve. good luck

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gonzalonal said:

Does this model support SearchRom command?
thanks!

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