Application using crossbar switch of MPC5643l

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Application using crossbar switch of MPC5643l

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arthivenkatasub
Contributor III

HI,

Please provide some examples or applications using crossbar switch of MPC5643L.

Regards,

ARTHI V

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petervlna
NXP TechSupport
NXP TechSupport

Hi,

As I was for some time out of office, expect that you have figured it out yourself. Now when you are familiar with XBAR it should not be any issue.

Just in case:

In master priority register you can configure priority of Masters on XBAR:

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And debugger screen:

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And slave port masters priority:

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Let me know if you have additional questions.

Peter

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arthivenkatasub
Contributor III

Hi Sir,

Thanks for your answer. I understood the concept of CROSSBAR.  I got familiar with this module. 

Regards,

Arthi Venkatasubramanian 

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petervlna
NXP TechSupport
NXP TechSupport

Hi,

In every example code it is used XBAR. It is just not configured as 99% of applications uses default XBAR configuration.

If you want some user specific XBAR configuration tell me the priority order or masters and slaves.

But XBAR is so simple that you can configure it in 5 mins yourself.

Peter

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arthivenkatasub
Contributor III

Hi,

Master is eDMA  and Slave is SRAM. How they will interact?

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petervlna
NXP TechSupport
NXP TechSupport

Hi,

They will interact exactly as it is configured in your XBAR.

eDMA is master and will have accesses based on configured priority on SRAM slave.

Peter

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arthivenkatasub
Contributor III

Hi Sir, 

You replied me that XBAR will be left with default settings. I understand the concept of XBAR. But I have no idea how to configure XBAR.

It has 4 masters and 3 slaves. Default settings means which master is assigned as highest priority. Whether any changes to be done in master and slave module registers. I am going to start with XBAR in MPC5643L as we are new to this controller. Can you tell me how to do?

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arthivenkatasub
Contributor III

Hi Sir,

Thanks for your reply. Since I am a fresher, I dont know where to start, thats why I post it as a question. I have no idea that it can be configured within 5 minutes.

Have a nice day.

Regards,

Arthi V

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