interfacing encoder SSI output to RS-422 port...

[ssankurathri]

Hi,

I am new to working on these protocols. I have couple of encoders which provide SSI output. I need to interface these outputs to RS-422 port of micro. Can I use any RS-422 transceiver to do this?
what kind of interface do I need to use?

Any guidance on this would be much helpful.

Regards,
skr

 

[FvM]

Yes, it's RS-422 physical interface. You can either utilize a SPI master hardware interface (connect SCK and SDI only) or implement a "bit-banging" interface. An application note describing the latter https://www.posital.com/media/posit...teEncoders_Context_Technology_SSI_AppNote.pdf

 

[ssankurathri]

Thank you. Can we change this SSI to UART? Any modules available to do this?

Regards,
skr

 

[FvM]

The encoder implements a synchronous slave interface, clock input and data output. To convert it to UART, you'll need a logic device with some "intelligence", e.g. a microcontroller.