// message format for testing the physical layer -- PhyRadio #ifndef TEST_MSG #define TEST_MSG // include physical layer header defination #include "PhyRadioMsg.h" typedef struct { PhyHeader hdr; // include lower-layer header first uint8_t seqNo; } AppHeader; /* AppHeader should be the same as the sender */ typedef struct { AppHeader hdr; char data[20]; int16_t crc; // crc must be the last field -- required by PhyRadio } AppPkt; #endif