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ADC and Digital mixing on other pin port authorized ?

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hobby

Bascom Member

Joined: 12 Apr 2004
Posts: 109
Location: Brussels

Posted: Mon Dec 17, 2018 11:53 am Post subject: ADC and Digital mixing on other pin port authorized ?

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Hi,

I use Mega2560, but i needed many I/O and only 3 ADC.
It's authorized this config:

Code:

Config Adc = Single , Prescaler = Auto , Reference = Avcc  

Config Portf.3 = Input

Config Portf.4 = Output

Config Portf.5 = Input

Config Portf.6 = Output

Config Portf.7 = Output

Config portk = Output

Dim W as Word

Do

w= getadc(0)

print w

w= getadc(1)

print w

w= getadc(2)

print w

toggle portf.3

loop

Works in hardware, but maybe create problem ?

Thanks
Olivier

(BASCOM-AVR version : 2.0.8.1 )

MWS

Bascom Member

Joined: 22 Aug 2009
Posts: 2262

Posted: Mon Dec 17, 2018 12:31 pm Post subject: Re: ADC and Digital mixing on other pin port authorized ?

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hobby wrote:

Works in hardware, but maybe create problem ?

As long every ground- and power-line is connected correctly, in- or output pins are driven within their specs and switching pins does not occur while ADC-sampling is underway, there should not be a problem.

hobby

Bascom Member

Joined: 12 Apr 2004
Posts: 109
Location: Brussels

Posted: Mon Dec 17, 2018 1:13 pm Post subject:

Thanks to reply. it reassures me, no software problem in sight. Bye Olivier

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