AnsweredAssumed Answered

W6 pin internal Pull-up setting at ECSPI Boot for i.MX6Solo

Question asked by yuuki on Jan 19, 2016
Latest reply on Jan 26, 2016 by yuuki

Dear all,

 

In our system, two Flashs are connected to SS0 and SS1 of ECSPI1 port.
And ECSPI Boot from SS0 is used.

 

We have a problem that boot fail occurs infrequently.

 

W6 pin is used as ECSPI1_SS1.
This W6 pin is GPIO Input 100K pull-up by default.

ESCPI_SS1.png

We checked SS pins of ECSPI.
We found that SS1 became Low at SS0 assertion.

ESCPI_SS1_atBooting.png

 

We think that internal Pull-up is not enabled.

 

Is the description of the data sheet right?

Is there the method that this pin sets to the High(Pull-up) during ECSPI Boot?

 

May I have advice?

 

Best Regards,

Yuuki

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