SDP vs SDPS: whats the difference ..?

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SDP vs SDPS: whats the difference ..?

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dry
Senior Contributor I

Cannot see any reference in iMX8 UG to SDPS, SDP still there.

What is the actual difference ..?

UUU help traces/messages are kind of cryptic on this:

dry_0-1662522030302.png

 

What is "stream download.." here ..?  Is "boot" the only command supported here ..? 

Where does SDPS come from?

 

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joanxie
NXP TechSupport
NXP TechSupport

in the uuu script, you can find

# This command will be run when i.MX6/7 i.MX8MM, i.MX8MQ
SDP: boot -f _flash.bin

# This command will be run when ROM support stream mode
# i.MX8QXP, i.MX8QM
SDPS: boot -f _flash.bin

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joanxie
NXP TechSupport
NXP TechSupport

refer to the uuu document

Support SDP protocol (i.MX6x, i.MX7, i.MX8M, i.MX8MM)
Support SDPS protocol (i.MX8QXP B0, i.MX8QM B0)

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dry
Senior Contributor I

Thank you for replying, but:

Support SDP protocol (i.MX6x, i.MX7, i.MX8M, i.MX8MM)
Support SDPS protocol (i.MX8QXP B0, i.MX8QM B0)

What does this say about how the protocols differ .. ?  Is the difference only that the Same protocol is called SDPS on iMX8 ?

Why I do not see any SDPS reference in the User Guide for iMX8 ? There is still SDP I see.

Is SDPS a UUU variant of SDP ..?

 

 

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joanxie
NXP TechSupport
NXP TechSupport

in the uuu script, you can find

# This command will be run when i.MX6/7 i.MX8MM, i.MX8MQ
SDP: boot -f _flash.bin

# This command will be run when ROM support stream mode
# i.MX8QXP, i.MX8QM
SDPS: boot -f _flash.bin

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dry
Senior Contributor I

Thank you,

seems like they identical, perhaps some fix in uuu was done for difference in SDS between the ROM code of the respective SOCs ...  Speculating.

 

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