pic 18F4520

[tiagoborba]

hello, I have a problem in communication between two PIC 18F4520 microcontroller, communication between them must be made by RS485, but using only the SPI port, my question is, what the IC do I need to implement the output of the microcontroller to convert SPI to RS485?

 

[be80be]

Try this out for size **broken link removed** hope it helps