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Help With 12f683 Two Analog Inputs
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arachid



Joined: 15 Oct 2016
Posts: 11

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PostPosted: Tue Feb 19, 2019 6:43 pm     Reply with quote
according to datasheet page 62 note 4:
4: When the device frequency is greater than 1 MHz, the FRC clock source is only recommended if the
conversion will be performed during Sleep.

them yo have two choice not use the internal FRC :

Code:

setup_adc(ADC_CLOCK_DIV_8);
//this case adc will need 2us to make convesion
or
setup_adc(ADC_CLOCK_DIV_16);
//this case adc will need 4us to make convesion

arachid



Joined: 15 Oct 2016
Posts: 11

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PostPosted: Tue Feb 19, 2019 6:55 pm     Reply with quote
according to datasheet page 62 note 4:
4: When the device frequency is greater than 1 MHz, the FRC clock source is only recommended if the
conversion will be performed during Sleep.

them yo have two choice not use the internal FRC :

Code:

setup_adc(ADC_CLOCK_DIV_8);
//this case adc will need 2us to make convesion
or
setup_adc(ADC_CLOCK_DIV_16);
//this case adc will need 4us to make convesion

Rez



Joined: 10 Feb 2019
Posts: 26

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PostPosted: Tue Feb 19, 2019 7:02 pm     Reply with quote
Everything is working now and I changed the ADC clock as well, Thanks everyone.
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