Look again at the photo of the circuit board. That resistor near the top right is 39K ohms, NOT 3902 ohms!
Remember, the last digit is a MULTIPLIER. It tells how many zeros to add after the other digits.
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Re: Stable ADC readings
Look again at the photo of the circuit board. That resistor near the top right is 39K ohms, NOT 3902 ohms!
Remember, the last digit is a MULTIPLIER. It tells how many zeros to add after the other digits.
Last edited by Byte_Butcher; - 16th September 2011 at 03:06.
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Re: Stable ADC readings
it's been said at post 59
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
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Re: Stable ADC readings
Too long to remember....Originally Posted by mister_e
it's been said at post 59
Ioannis
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Re: Stable ADC readings
How I can set (configure) ADCON1 register when I use 16F877A external Vref on RA2, RA3
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Re: Stable ADC readings
Take a look at table 11-2 in the data sheet.
ADCON1 = %00001111
Sets the VREF pins and makes AN0 analog with the remainder digital.
Bits 6 an 7 will set for 8 or 10 bit resolution and FOSC/x
Dave
Always wear safety glasses while programming.
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