samd21g18a sdcard init problem

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#1
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hello

 

i am trying to create an application so i can use the sdcard as a drive when connecting my board to a computer.

 

i am using a samd21g18a.

 

i am also using the atmel ASF.

 

i have added the sd-mmc library and the usb library ( composite mode), but i am unable to access my sdcard.

 

i checked the signal SCK but nothing.

 

is there any thing i have missed?

 

thanks for the help.

Last Edited: Fri. Oct 6, 2017 - 01:12 PM
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Probably better asking in the Cortex-M forum.

 

zaki_taleb wrote:
i checked the signal SCK but nothing.  

Well, that is clearly a fundamental problem!

 

But the settings necessary to get the SPI working will be specific to the SAMD - hence probably better asking in the Cortex-M forum...

Last Edited: Fri. Oct 6, 2017 - 11:25 AM
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hello

 

thanks for the response.

 

i will create another topic in the cortex-M forum

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