About Table 6-50 of i.MX 7 Dual Reference Manual

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About Table 6-50 of i.MX 7 Dual Reference Manual

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goto11
Contributor III

Hello,

Please tell me the correspondence between Full Speed Phase Selection and Full Speed Delay Selection with QSPI_WMPR [DDRSMP].
As an example, please tell us about two cases.
What is QSPI_WMPR [DDRSMP] set when Full Speed Phase Selection is "1" and Full Speed Delay Selection is "0"?
What is QSPI_WMPR [DDRSMP] set when Full Speed Phase Selection is "1" and Full Speed Delay Selection"1"?

Regards,

Goto

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Goto

 

parameter QSPI_WMPR [DDRSMP] is set based on timings used qspi-nor part (can be found

in its datasheet),  sect.10.2.10.2 Input timing in DDR mode with internal sampling 

i.MX 7Dual Applications Processor Reference Manual

and sect.4.10.11.2 DDR Mode  i.MX 7Dual Family of Applications Processors Datasheet

 

Best regards
igor

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goto11
Contributor III

Hello,

 

Can you tell me the value in the "?" Column in the table below?

 

Full Speed Phase Selection |   0   |   1   |   0   |   1

_______________________________________________________________

Full Speed Delay Selection  |   0   |   0  |   1   |   1

_______________________________________________________________

QSPI_WMPR [DDRSMP]    |   ?   |   ?  |   ?   |   ?

 

Regards,

Goto

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igorpadykov
NXP TechSupport
NXP TechSupport

where did you find it  : "Full Speed Phase Selection" ?

Any document, link ?

 

Best regards
igor

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goto11
Contributor III

Hello,

Table 6-50 of i.MX 7 Dual Reference Manual (page 1236) of the i.MX 7 Dual Applications Processor Reference Manual.

 

Can you tell me the value in the "?" Column in the table below?

 

Full Speed Phase Selection |   0   |   1   |   0   |   1

_______________________________________________________________

Full Speed Delay Selection  |   0   |   0  |   1   |   1

_______________________________________________________________

QSPI_SMPR [DDRSMP]    |   ?   |   ?  |   ?   |   ?

 

Regards,

Goto

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igorpadykov
NXP TechSupport
NXP TechSupport

>Can you tell me the value in the "?" Column in the table below?

 

these parameters should be set based on qspi-nor flash datasheet values.

In particular for MX25L51245GZ2I-10G part used in i.MX7D Sabre SD board

there is example in mfg tool package, file qspi-nor-macronix-mx25l51245g-config

 

Best regards
igor

 

 

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