Bmp085 object

AS · 2011-03-29 08:52

Hi!

I´m not sure how it should be used.
I wrote the code BAROMETRO.SPIN.
All the files I use are in attachement!

CON
  _clkmode = xtal1 + pll16x                  ' System clock &#8594; 80 MHz
  _xinfreq = 5_000_000
  CR = 13 

VAR
  word t,p   
 
OBJ
  Baro       :  "bmp085Object"
  Debug      :  "FullDuplexSerialPlus"

PUB Init
  Debug.Start(31, 30, 0, 115200)
  waitcnt(clkfreq * 2 + cnt)
  Baro.init(0,1)
  main

PUB Main 
  repeat
         Debug.Str(String(CR, "start calculations.....")) 
         baro.GetPressureTemp(0,1,3,t,p)
         Debug.Str(String(CR, "T = "))
         Debug.Dec(t)
         Debug.Str(String(CR, "P = "))
         Debug.Dec(P)
         waitcnt(clkfreq*1000 + cnt)

Thanks a lot

th3jester · 2011-03-29 10:10

I've had trouble with the BMP085 as well. Although I ultimately concluded the sensor was bad. What problems are you having?

AS · 2011-03-29 10:40

Hello!
I think the problem is not in the sensor but how i "call" bmp085 object!!! (I think)

I can get the constants (READ REGISTERS) AC1..AC6; B1, B2; MB, MC, MD. I´m not sure about the signal (positive and negative). And i´m not sure about UT and UP values because i used the program from SMD500.

When i discovery the object (BMP085) i thought that i have my problem solved but i think I don´t know how use the object.

The files that i send now are just to READ REGISTERS from the sensor and it works.

Thanks

AS · 2011-04-06 06:48

Hello Tim Moore!
I need to say thanks because bmp085Object help me a lot

.
You go think that i´m a big dummy in spin programing

(it´s true)

at this moment i just ask why this code to call bmp085Object don´t work:

CON
  _clkmode = xtal1 + pll16x                  ' System clock &#8594; 80 MHz
  _xinfreq = 5_000_000
  CR = 13 
VAR
  long t,p
  
OBJ
  Baro       :  "bmp085Object"
  Debug      :  "FullDuplexSerialPlus"

PUB Init
  Debug.Start(31, 30, 0, 115200)
  waitcnt(clkfreq * 2 + cnt)
  Baro.init(0,%1110_1110)
  main
PUB Main 
  repeat
    Debug.Str(String(CR, "start calculations.....")) 
    baro.GetPressureTemp(0,%1110_1110,1,t,p)

    ' Display Result
     Debug.Str(String(CR, "T = "))
     Debug.Dec(t)
     Debug.Str(String(CR, "P = "))
     Debug.Dec(P)

     
     waitcnt(clkfreq + cnt)

I get always t=p=0

I use the logic of bmp085Object to build a program without object and it works very good

I need to learn a lot!
Thanks a lot for share.
AS

Bmp085 object

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