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Interface of two boards with SPI

Question asked by khalo.hilwane on Apr 25, 2014
Latest reply on Apr 26, 2014 by Mark Edwards
Hi,

I'm using the F3 Discovery board  as a Slave with hardware chip select.
I have to communicate this board with another board using the PIC microcontroller acting as a Master.
The problem is that the pin voltage of the master is 0-5v. And so i can't interface it directly with the F3 because of the non compatibility.

I would know is someone knows a buffer circuit that permits to have 5v to 3v.
I have to convert all the pins from 5v to 3v (MOSI,MISO,SCK, CSS)?

Thanks in advance.

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