Hi Charlie,
On Wed, 2 Jun 2010, Charles wrote:
>> In the example code provided by TS, adc_7250.c , there is
>> some manipulation of the output of the adc, which looks suspiciously like
>> "magic" to me :-)
>>
>> Anyone know where, if anywhere this is defined?
>
> Not sure what you refer to, but I'd guess the TS calibration values or
> working with the *signed* data...
>
> Take a look here (and the referenced threads):
> http://tech.groups.yahoo.com/group/ts-7000/message/11067
Thanks for the ref. There you advise "Take a look at the transfer function
of voltage vs returned value in the cirrus ep9301 manual." It was this info
I really needed. I re-searched the user guide but did not find anything,
only Chapter 20 which details the programming interface. But after further
searching, it seems what I need is in the Data sheet, page 32.
The numbers do not seem magic any more!
Thanks
Jim
>
> If 'it' still looks like magic, you will have to be a little more specific.
>
> regards, .......... Charlie
>
>>
>> I'm simply after a linear integer value that is proportional to applied
>> voltage.
>>
>> cheers
>> Jim
>>
>
>
>
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