SPI Slave

[Mathy]

Hello !

Is someone already changed the existing SPI macro to make a SPI slave ?

It will be very usefull to me

Thank you !

[Enamul]

Hi
I am not quite clear what you are looking for! You can easily use existing SPI to communicate data to&from slave SPI device just need to know some basic bits about the slave device..like address, clk transition,SPI clock polarity and supported speed.

[Mathy]

Oh sorry, my english is still so bad

I have already use the existing SPI macro to communicate with digital potentiometer for exemple. No problem for that.
But I would like to use SPI in slave mode to share data between two MCU or more so I need one MCU with a master SPI and some MCU with slave SPI.

Is it more clear ?

[Enamul]

OK. Thanks. That's much clear now. If you don't need to strict to SPI you can use I2C to communicate between PIC. Here is a link for that where the code is mainly written for FCv4 but can be used for FCv5 with some correction for some of the chips.
http://www.matrixmultimedia.com/mmforum ... f=7&t=7081