Is the signal of the mcc172 trig connected to the raspberry pi side?

[ahnjs1987]

I saw the block diagram of MCC172, It looks like accessing trig signal from raspberry pi.

Is the signal of the MCC172 trig connected to the raspberry pi side?

[Fausto]

Hello @ahnjs1987.

The MCC 172's external trigger is shared with the Raspberry Pi's header pin GPIO05. 

[ahnjs1987]

Hello @Fausto

But I input 3.3V on TRIG and  connected GPIO05 with voltage meter, It didn't show 3.3V.

Is there any configuration for share trigger signal with RPI?

[Fausto]

Hello @ahnjs1987.

The TRIG screw terminal is not connected to GPIO05.  An external trigger signal should be connected to the TRIG screw terminal, on the MCC 172.  

[ahnjs1987]

I connected external signal on TRIG port of MCC172, And I couldn't sensing signal from GPIO05.

Do you mean TRIG Signal can only be share between MCC172s?

[Fausto]

On 2/10/2023 at 3:19 PM, Fausto said:

The TRIG screw terminal is not connected to GPIO05.

The Raspberry Pi GPIO05 is used to synchronize multiple MCC 172 boards. 

[ahnjs1987]

I totally understood.

Thanks.