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ADC on PIC16F91xx

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danielefilisetti

Joined: 27 Apr 2005
Posts: 3
Location: Italy

ADC on PIC16F91xx
Posted: Thu May 05, 2005 3:21 am

I got some problem using AD converter on PIC16F913. It works unlike the other pic devices. I set the ANSEL reg, the ADCON0/1, but it doesn't work correctly. Somebody use AD on this device's family Daniele

PCM programmer

Joined: 06 Sep 2003
Posts: 21708

Posted: Thu May 05, 2005 12:52 pm

Reply with quote

Quote:

I got some problem using AD converter on PIC16F913.
It works unlike the other pic devices.

What is your version of the CCS compiler ?
The version number is at the top of the .LST file, which is generated
when you compile a program. The version will be a number such as:
3.191, 3.223, 3.224, etc.

Quote:

I set the ANSEL reg, the ADCON0/1, but it doesn't work correctly.

This sounds like you are setting the A/D registers directly.
You're not using CCS functions, such as:

setup_adc_ports()
setup_adc()
set_adc_channel()
read_adc()

If you want to skip the CCS functions and write your own code,
then you need to carefully study the data sheet.

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