[ts-7000] Regarding ADC calibration

["holy_12_hans" <>]

Hello Friends,

        I am using ts-7200, and I want to use 5 ADC input channels provided
by EP902 itself.
I tried to run the sample code at http://www.pastecode.com/14646 which
is lastly updated as of Apr 29, 2005 and found the following output. 

Calibration Values =
[ 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0  ]
Board has been calibrated by Technologic Systems...
Channel 0: 2.509V
Channel 1: 2.509V
Channel 2: 2.509V
Channel 3: 2.509V
Channel 4: 2.509V

Now i have few questions regarding the code ::

1) why the output shows 0x0 calibration values as according to
http://tech.groups.yahoo.com/group/ts-7000/message/934 
   there should be any data ?

2) In the code, why 0x10000 is being added in the following statement
or if one can eloborate the meaning please (Line No. 181)
        (((((double)(stored_cal[i][1] + 0x10000)   - stored_cal[i][0]) / 2.5
) * 3.3 )); 

3) Also why the following statement is included? (Line No. 190)
        if(avg < 0x7000) avg = avg + 0x10000;

4) In the code,  #define CALIB_LOC    2027 is used for location of
calibration values but according to ts-manual-rev2.2.pdf 
   on page 28 the location is defined as 0x07EB through 0x07FE that
holds the calibration values, so how the mapping is
   done ? (Line No. 14)

   Kindly any suggestions are really appreciated..

  Thank You,

  Have a Nice time and good day ahead..

  Ankur Patel. 
   



 
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