AnsweredAssumed Answered

3-wire and 4-wire SPI slave devices on the same bus?

Question asked by Michael Wloch on Jan 28, 2019
Latest reply on Jan 28, 2019 by G.w. Sun



I have a project with LCD segment driver PCF8551B. It has got a 3-wire SPI interface.


I would like to connect PCF8551B and other 4-wire SPI device as a slave to the same SPI bus.


Is it possible for these devices to work on the same bus in a good way?


Waiting for reply.


Best regards,