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dsPIC33EP64GS502 ADC [SOLVED]

 
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RicSToz87



Joined: 19 Feb 2017
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dsPIC33EP64GS502 ADC [SOLVED]
PostPosted: Tue Aug 29, 2017 2:47 pm     Reply with quote
Hello!

I'm trying to read the dsPIC ADC pin (an0), but if I try the following code the microcontroller freezes:

Initialization:
Code:
setup_adc(ADC_CLOCK_SYSTEM);
setup_adc_ports(sAN0);


ADC Read:
Code:
set_adc_channel(1);
vetor_ad1[0] = read_adc();


Reading the dsPIC33EP512GS502 datasheet I found that this device has a "dedicated ADC Module"...

How I can use this module?

Compiler Version 5.074
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Ricardo

Last edited by RicSToz87 on Wed Aug 30, 2017 7:45 am; edited 1 time in total
Ttelmah



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PostPosted: Wed Aug 30, 2017 12:00 am     Reply with quote
You need to look at ex_adc_epgs.c
This is the example of using the ADC on this type of chip.
There are several more things that have to be setup, than simply the master clock....

You also need to study the data sheet about which ADC accesses which input pin. You channel selection would be wrong even without the dedicated ADC (AN0 != channel 1....).
RicSToz87



Joined: 19 Feb 2017
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[SOLVED]
PostPosted: Wed Aug 30, 2017 6:54 am     Reply with quote
Ttelmah wrote:
You need to look at ex_adc_epgs.c
This is the example of using the ADC on this type of chip.
There are several more things that have to be setup, than simply the master clock....

You also need to study the data sheet about which ADC accesses which input pin. You channel selection would be wrong even without the dedicated ADC (AN0 != channel 1....).


Thanks, Ttelmah!

Works fine as the example!
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Ttelmah



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PostPosted: Wed Aug 30, 2017 7:02 am     Reply with quote
Good. Smile
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