About changing the drive strength in i.MX6DQ.

[keitanagashima]

Dear All,

Hello.

I have a question about changing the drive strength in IOMUX of i.MX6DQ.

My customer will use the three kind of frequency for uSDHC operation and wants to set DSE to each frequency.

1. Initialization mode : 347.22 kHz

2. High speed mode : 50 MHz

3. SDR104 mode : 208 MHz

Is it possible to change the "DSE" field at the switching the mode?

(i.e. May I change DSE during start-up)

Best Regards,

Keita

[igorpadykov]

Hi Keita

no, "DSE" can not be changed automatically

at switching the mode (SD operating frequency)

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

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

-----------------------------------------------------------------------------------------------------------------------

[keitanagashima]

Dear Igor,

Hello. Thank you for your reply.

> no, "DSE" can not be changed automatically at switching the mode (SD operating frequency)

If user adds the changing the DSE in their code manually, may one change the DSE while working?

Best Regards,

Keita

[igorpadykov · Accepted solution]

Hi Keita

yes right, one can change DSE code manually

Best regards

igor

[keitanagashima]

Dear Igor,

Hello. Thank you for your reply.

OK. I got it.

I’ll have my customer change the code.

Best Regards,

Keita