Now OD callback return val ahev influance on SDO transmission (if callback fall, SDO abord may be signaled)
#include "TestMaster.h"
void TestMaster_heartbeatError(CO_Data* d, UNS8);
UNS8 TestMaster_canSend(Message *);
void TestMaster_initialisation(CO_Data* d);
void TestMaster_preOperational(CO_Data* d);
void TestMaster_operational(CO_Data* d);
void TestMaster_stopped(CO_Data* d);
void TestMaster_post_sync(CO_Data* d);
void TestMaster_post_TPDO(CO_Data* d);
void TestMaster_post_emcy(CO_Data* d, UNS8 nodeID, UNS16 errCode, UNS8 errReg);
void TestMaster_post_SlaveBootup(CO_Data* d, UNS8 nodeid);