Hi Dave, I can think of 2 ways of doing this. You could use the master to manipulate the JTAG state machine of the daughter board to read out some unique ID/address. Or you could enter a "discover mode" where you would set the pins as a GPIO and bit bang an ID request from the master and an ID response from the daughter. I'll check around for some examples or app notes. Let me know if this helps though.
↧