Unable to configure DMA for ADC using Atmel Start

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ineedhelp123
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Posted by ineedhelp123: Tue. Jun 29, 2021 - 05:37 PM
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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
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ki0bk
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Posted by ki0bk: Tue. Jun 29, 2021 - 05:51 PM
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Which AVR is this for?

 

 

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ineedhelp123
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Posted by ineedhelp123: Tue. Jun 29, 2021 - 06:19 PM (Reply to #2)
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Sorry, I am using the Samd21ja18A on the Xplained pro board

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jgmdesign
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Posted by jgmdesign: Tue. Jun 29, 2021 - 07:30 PM
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I'll move this to the proper forum

 

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Lajon
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Posted by Lajon: Wed. Jun 30, 2021 - 05:35 PM
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	/* Enable ADC freerun mode in order to make example work */

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

/Lars

 

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