Unable to configure DMA for ADC using Atmel Start

Log in or register to post comments
Go To Last Post
5 posts / 0 new
Author
Message
ineedhelp123
ineedhelp123's picture
Level: New Member
Joined: Thu. May 27, 2021
Posts: 3 View posts
#1
Posted by ineedhelp123: Tue. Jun 29, 2021 - 05:37 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0


Hi guys, I am working on a project that requires the adc, and I want to use the DMA. 

I have been able to get the adc to work using the sync drivers (I haven't tried async), but when I use the DMA no conversion seems to be happening. 

The callback is never ran, and now values are put into the buffer besides 0.

 

Here is my adc configuration:

 

Here's My DMA configuration

 

 

Here is the setup and callback

 

 

 

Any help would be greatly appreciated, this has been driving me crazy.

 

Tags:

Tools, Atmel Software Framework (ASF) and Atmel Start (ASFv4) (ARM-related), #ADC #interrupt #DMA #AtmelStart
Last Edited: Tue. Jun 29, 2021 - 07:30 PM
Top
ki0bk
ki0bk's picture
Level: 10k+ Postman
Joined: Mon. Sep 8, 2014
Posts: 10632 View posts
Location: Over the rainbow
Posted by ki0bk: Tue. Jun 29, 2021 - 05:51 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Which AVR is this for?

 

 

FF = PI > S.E.T

 

Top
ineedhelp123
ineedhelp123's picture
Level: New Member
Joined: Thu. May 27, 2021
Posts: 3 View posts
Posted by ineedhelp123: Tue. Jun 29, 2021 - 06:19 PM (Reply to #2)
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Sorry, I am using the Samd21ja18A on the Xplained pro board

Top
jgmdesign
jgmdesign's picture
Level: Moderator
Joined: Mon. Mar 19, 2007
Posts: 18740 View posts
Location: Long Island New York
Posted by jgmdesign: Tue. Jun 29, 2021 - 07:30 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I'll move this to the proper forum

 

Jim - Moderator

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

Top
Lajon
Lajon's picture
Level: Raving Lunatic
Joined: Fri. Mar 12, 2004
Posts: 2934 View posts
Location: Linköping, Sweden
Posted by Lajon: Wed. Jun 30, 2021 - 05:35 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0
	/* Enable ADC freerun mode in order to make example work */

You don't have "Free Running Mode" enabled.

/Lars

 

Top