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SPIM in PSoC4 | Cypress Semiconductor


Summary: 2 Replies, Latest post by hli on 27 Jun 2013 07:23 AM PDT
Verified Answers: 2
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HiZ's picture
27 posts

I want to connect 4 SPI slaves to PSoC4 CY8C42 family device. Is it possible?

HIMA's picture
Cypress Employee
169 posts

 You can use UDB based SPI Master componenet. Connect 1:4 Demultiplexer on the slave select pin and thus generate 4 slave select signal. This design is given in the SPIM component datasheet, Page 4. Please refer to that.

user_78878863's picture
2553 posts

Or you just handle the Slave Select signals manually in firmware, then you can use also the fixed-function SPI component.

Remember - SPI works mostly like a bus, except for the select signals. Or do you need to handle parallel transfers to multiple slaves?

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