i want to implement A to D conversion for PIC 18f67J90 (which has 10 bit ADC converter)
I am using 3.5V battery
I need to vary the voltage from 1.25 to 2.0 V in steps of 0.075V using the potentiometer and 3.5 V source
When I read 1.25V from multimeter, counter should display 1
1.25+0.075 = 1.325V from multimeter counter should display 2
1.325+ 0.075=1.4V from multimeter counter should display 3 and so on upto 2V
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I have implemented a code but it gives inaccurate results.
for 2V I see the correct counter value
but that value stays until 1.6V reading from the multimeter
Also for 1.25 V counter shows 1 which is correct
But there is no uniformity between the other multimeter readings and counter value
That is, I am not getting the counter value corresponding to the multimeter readings which increase in steps of 0.075V
How do I go about fixing this issue?
If anyone has an idea please let me know
Thanks
I am using 3.5V battery
I need to vary the voltage from 1.25 to 2.0 V in steps of 0.075V using the potentiometer and 3.5 V source
When I read 1.25V from multimeter, counter should display 1
1.25+0.075 = 1.325V from multimeter counter should display 2
1.325+ 0.075=1.4V from multimeter counter should display 3 and so on upto 2V
_________________________________________________________________________________________
I have implemented a code but it gives inaccurate results.
for 2V I see the correct counter value
but that value stays until 1.6V reading from the multimeter
Also for 1.25 V counter shows 1 which is correct
But there is no uniformity between the other multimeter readings and counter value
That is, I am not getting the counter value corresponding to the multimeter readings which increase in steps of 0.075V
How do I go about fixing this issue?
If anyone has an idea please let me know
Thanks
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