I am having a hard time digging through all of the XeThru resources to determine what libraries and/or examples might be available for our system design. We purchased the X4SIP02 subsystem and designed our own antenna board. We are now trying to figure out how to begin communicating with the X4 with an MCU of our own choosing (perhaps an Arduino?). Most of the libraries + examples seem to assume the user has purchased the X4M200 or some other full module with an MCU onboard. We have our own MCU we are planning on using and we want to figure out how to begin SPI communication/configuration with the X4SIP02. Is there a header/documentation/example that could be used for this type of implementation?