PHY pull-up resistor on EtherCAT PHY board

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JeroenVDZ
Level 1
Level 1
First question asked Welcome!

On the EtherCAT PHY dev board there is a pull-up resistor on RXD0 of the second PHY (R232)
Anyone knows why it is needed, and also why it is not on the first PHY?

 

I forgot to place on my custom board an we wonder if this is a big problem, because it all seems to work fine...

 

Thank you,

 

Jeroen Vandezande

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ncbs
Moderator
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500 replies posted 50 likes received 250 sign-ins

Hi @JeroenVDZ,

Could you specify which XMC EtherCAT kit are you referring to?

Regards,
Nikhil

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