Use Arduino Mega 2560 as both Master and Slave via SPI

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here's general layout of i'm trying do.

in labview, have fpga sends byte of information arduino mega via spi.  able capture bytes , display serial monitor.  mega acts slave in case, fpga being master.

what want next take byte (let's it's 150 in decimal), , use test "if" condition in order light led.

this want introduce spi-incorporated single-channel digital pot (mcp4151).  if byte in decimal form being transferred 150, want use mega send 150 digital pot represent wiper step.  mcp4151 has 0-255 steps, , it's 50k ohm max.  if 150 gets there, led light such brightness.

before try second task want know if possible?  using arduino mega first slave, master.  or other arduino board matter (i necessary board if need be).

thanks



Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Use Arduino Mega 2560 as both Master and Slave via SPI


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