AURIX™ Forum Discussions

[amoljadhav]

I am using TC3XX uC family for Automotive product.

I have configured three ADC group G0, G1 and G8, with 3-5 ADC channel in each group.

Now I have to meet the safety requirement, So I want to use safety features  Pull-Down Diagnostics, Multiplexer Diagnostics, Converter Diagnostics and Broken Wire Detection. But I have doubt is, Shall I use existing channel for safety that already using for application. I am not sure either I can use safety feature on my existing ADC channels or I have to configure new ADC group to utilize safety feature. 

If I use my current ADC group for safety feature for sometime and again change ADC group it again to application use ?

[DownyK]

I think you should read AURIXTC3XX_um_part2_v2.0.pdf 32.12.

In my opinion, the ADC ch being used as an application can be used for safety tests as it is.

[KB · Accepted solution]

Hello amoljadhav,

Not all channel support PDD,MDPD,MDPU. Refer AURIX family specific user-manual to check if your desired channel support the diagnostic functionalities.

Usually you can add all the desired channels (which supports diagnostic feature) to Test Queue. The Queue 2 is called Test Queue.
You can trigger this queue every time after the conversion of your configured groups to perform PDD,MDPD,MDPU tests on the channels.

Refer chapter 32.12.6 for more information.

Thank You

Regards,
KB