GTM HW Trigger to ADC, Rising/Falling Edge from GTM

[User18151]

Hi all,

Is a GTM HW Trigger to ADC, Rising/Falling Edge from GTM, possible?

Kind regards,
Christine.

#8042000 19768

[User18237]

Hi Christine,

When triggering VADC from GTM, it is common to use triggering (edges) as opposed to gating (levels). The VADC "sees" the signal level of the GTM. So if the signal level changes from low to high, this is associated with rising edge trigger, and vice versa for falling edge. It is important, in this case, to account for the GTM signal level ((A)TOMi_CHx_CTRL.SL) in order to determine where the ADC is triggered. Often it is the case where the VADC specific (A)TOM channel is not routed externally, but internal only. It must be accounted and verified edge placement of rising and falling edges.

Best regards,
Mr. AURIX™

[Abhishek_shambu]

Hi Christine/ Mr Aurix,

We are using TC297 MCU in our application & we need to make GTM hardware trigger (PWM rising edge trigger) to Group 0 ADC channels read. The user manual of TC297 do not say anything on this. 

Does TC297 controller support this feature? Kindly reply on this at the earliest.

Regards,

Abhishek_shambu