Fault injection testing on TPL bus

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Fault injection testing on TPL bus

736 Views
andersagnvall
Contributor I

Hi!

Is there a recommended method or tool available to perform fault injection testing on the TPL interface? 

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6 Replies

409 Views
ovenystas2
Contributor I

Hi,

I'm working for the same company as andersagnvall.
When I look at the description of the TPL sniffer it only lists TPL2 devices as supported. We will also use newer TPL3 devices (MC33775). Will this TPL sniffer be able to sniff TPL3 messages?
I see that the TPL sniffer uses the MC33664 chip internally to sniff the TPL bus. Is that chip able to send and receive TPL3 messages?

Best Regards,
Ove Nystås

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475 Views
andersagnvall
Contributor I

Hi, 
I would highly appreciate your feedback on my above question. This topic has a major impact on our verification strategy.

/ Anders Agnvall

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462 Views
TomasVaverka
NXP TechSupport
NXP TechSupport

Hi Anders,

We are having internal discussions about this, we see the benefit for customers, but the development of such a tool is not planned at this point.

Best regards,

Tomas

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723 Views
andersagnvall
Contributor I

Ok, thanks for the quick reply!
Are there future plans for it?

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729 Views
TomasVaverka
NXP TechSupport
NXP TechSupport

Hi Anders,

We have the TPL sniffer to monitor the traffic on the bus, but no tool to inject faulty TPL messages on it at the moment.

Best regards,

Tomas

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615 Views
andersagnvall
Contributor I

Hi again!
Do you have any recommendations on how to verify fault detection on the TPL bus? I see a problem performing safety verification if we cannot emulate faulty messages on the bus.

Best regards,

/ Anders

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