How to use SPI in Atmel SAME70 xplained

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Harikrishnan911
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#1
Posted by Harikrishnan911: Fri. Sep 9, 2016 - 12:37 PM
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HI, Am new to Atmel SAM processors.

I really need some help with the ASF programming.

 

Can anybody provide a sample code to demonstrate data transfer using SPI?

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Tags:

Atmel SMART ARM-based MCUs and MPUs, Atmel Cortex-M MCUs, #SPI #samE 70 #ARM, solved, Atmel SAME 70, #timer #Interrrupts, #SAME70 #SAM
Last Edited: Tue. Nov 29, 2016 - 11:12 AM
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Greg_Muth
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This reply has been marked as the solution. 
Posted by Greg_Muth: Sun. Sep 11, 2016 - 02:38 AM
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File -> New -> Example projects...  There is an example project titled "SPI Example - SAME70 XPLD"

 

BTW, you posted in the wrong community.  You should have posted here.

 

Greg Muth

Portland, OR, US

Xplained/Pro/Mini Boards mostly

 

Make Xmega Great Again!

 

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Harikrishnan911
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Posted by Harikrishnan911: Tue. Sep 13, 2016 - 04:22 AM (Reply to #2)
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Sorry, Am new to this.

I'll keep that in mind in my next post.

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By any means can I move this post to that location?

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Harikrishnan911
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Posted by Harikrishnan911: Fri. Sep 16, 2016 - 06:42 AM
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Hi Guys,

 

I have managed to get the SPI working.

But now am in a confusion like, hot to change the SPI clock frequency.

I did see a function like "spi_set_baudrate_div"

 

Even after using the function like in the example code, the frequency doesn't seem to change.

 

Any Idea?

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Harikrishnan911
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Posted by Harikrishnan911: Fri. Sep 23, 2016 - 06:48 AM
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I have some how managed to make the internal SPI work without any issues.

Still I haven't got a clear cut idea regarding how things really work.

 

One more query.

Am not able to make the SPI clock frequency below 250kHz.

Is there any reason behind that?
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Harikrishnan911
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Posted by Harikrishnan911: Tue. Nov 29, 2016 - 11:12 AM
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It is working good for now.
But I really don't know why I couldn't bring the clock frequency below 250kHz.

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jackxl
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Posted by jackxl: Tue. Sep 19, 2017 - 08:30 AM (Reply to #6)
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What did you do to SPI works. ? My SPI doesn't work with SD card on extended board IO1 Explained. I don't have even SPI clock.

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Harikrishnan911
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Posted by Harikrishnan911: Thu. Oct 19, 2017 - 04:53 AM (Reply to #7)
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Check conf_board.h & see if SPI has been defined?

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jackxl
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Posted by jackxl: Thu. Oct 19, 2017 - 05:52 AM
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I solved it and problem wasnt't enable spi.

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Harikrishnan911
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Posted by Harikrishnan911: Sat. Oct 28, 2017 - 07:44 AM (Reply to #9)
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yes

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