topic Re: About Table 6-50 (Quad SPI configuration parameters) of i.MX 7 Dual Reference Manual in i.MX Processors

About Table 6-50 (Quad SPI configuration parameters) of i.MX 7 Dual Reference Manual

goto11 — Mon, 08 Feb 2021 11:44:47 GMT

Hello,

For the settings of Full Speed Phase Selection and Full Speed Delay Selection, is the value of QuadSPIx_SMPR [DDRSMP] updated in DDR mode?

How many QuadSPIx_SMPR [DDRSMP] do you support for each of the examples below?
Example 1
Full Speed Phase Selection: 0
Full Speed Delay Selection: 1
Example 2
Full Speed Phase Selection: 1
Full Speed Delay Selection: 0

best regards
Goto

Re: About Table 6-50 (Quad SPI configuration parameters) of i.MX 7 Dual Reference Manual

nxf63675 — Mon, 08 Feb 2021 20:41:49 GMT

Hi Goto,

The first question is yes.

And for the second question, it just supports two modes for each example.

Hope this helps you.

Regards,

Israel H.

Re: About Table 6-50 (Quad SPI configuration parameters) of i.MX 7 Dual Reference Manual

goto11 — Thu, 11 Feb 2021 05:19:59 GMT

Hello,

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

Regards,

Goto

Re: About Table 6-50 (Quad SPI configuration parameters) of i.MX 7 Dual Reference Manual

goto11 — Fri, 12 Feb 2021 00:08:43 GMT

hello,

I haven't received an answer back, so I'll change the question.

Is the correspondence of the QSPI_SMPR [DDRSMP] register for Full Speed Phase Selection and Full Speed Delay Selection (Table 6-50 in the Reference Manual) in DDR mode as follows?

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

Full Speed Delay Selection | 0 | 0 | 1 | 1
=====================================================
QSPI_SMPR [DDRSMP] | 0 | 1 | 2 | 3

Regards,

Goto