AVRFreaks.net

BEGIN_PACK
typedef union
{
   uint8_t    message[65];      
} PACK AppMessage_t;

typedef struct
{
   uint8_t        header[APS_ASDU_OFFSET];
   AppMessage_t   data;
   uint8_t        footer[APS_AFFIX_LENGTH - APS_ASDU_OFFSET];
} PACK AppMessageRequest_t;
END_PACK

// global variables
AppMessageRequest_t   outgoingMessage;            


// data you send
outgoingMessage.data.message[0] = 0xXX;       // 1st byte
outgoingMessage.data.message[1] = 0xXX;       // 2nd byte

// global variables
uint8_t received_data[65];

void APS_DataInd(APS_DataInd_t *indData)      
{         
   AppMessage_t *data = (AppMessage_t *) indData->asdu;
   
   
        received_data[0] = data->messsage[0];    // 1st byte
        received_data[1] = data->messsage[1];    // 2nd byte
}