imx6qdl time interval at SCLK.

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imx6qdl time interval at SCLK.

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923件の閲覧回数
dahyunkim
Contributor I

Hello, 

I had a problem in imx6qdl and I have to reduce the interval of the SCLK(spi clock).

Actually, I have to get no interval in spi clock like this.(Yello is SCLK)

pastedImage_1.png

But i.mx6qdl SCLK is like this.

pastedImage_2.png

There is 1us interval time. I use 4.5Mhz spi transfer speed.

I am wondering the way can modify the interval of the spi clock.

Do you know the way control of the spi clock?

Is the interval time related in Clock Controller Module? 

Thank you.

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igorpadykov
NXP Employee
NXP Employee

Hi Dahyun

>I am wondering the way can modify the interval of the spi clock.

>Do you know the way control of the spi clock?

interval is caused by processor internal buses delays and can not be changed, sorry.

>Is the interval time related in Clock Controller Module? 

no

Best regards
igor
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809件の閲覧回数
igorpadykov
NXP Employee
NXP Employee

Hi Dahyun

>I am wondering the way can modify the interval of the spi clock.

>Do you know the way control of the spi clock?

interval is caused by processor internal buses delays and can not be changed, sorry.

>Is the interval time related in Clock Controller Module? 

no

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

0 件の賞賛