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adc interfacing programs

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saidutt

saidutt

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hi friends,
I am interfacing ADC with temperature sensor(LM35) and micro-controller.
the output (voltage) values of ADC is Hex values which is voltage values of LM35.


if voltage at LM35 output is 2.4 volts and the ADC will give you hex value of 2 volts only.it will omit 0.4 volts.if i want to display 2.4 Volts on to the hyper terminal.

voltage at LM35 output from 2.1 volts to 2.9 Volts and the ADC will give you hex value of 2 volts only.


so how do get that value?please help me out figure it out
 

Hi,

Sounds like your program code is incorrect but you give no details of your hardware circuit or program code...
 

    saidutt

    saidutt

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It seems like that values you are converting are in integer format rather then float format.
post your code so that we can check it.
 

    saidutt

    saidutt

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engr.hayee said:
It seems like that values you are converting are in integer format rather then float format.
post your code so that we can check it.
Click to expand...

hi friends,


my program is attached below.
i am using 8051 micro-controller and ADC as 0809.
please help me out.
 

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