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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

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.