PtoEtcSW self check time step modefied to 50ms and receive port check was added
shelter added not finished, motor driver function modefied for shelter and try times parameters added, current check in main modefied for shelter, RunMode Switch 0101 and 1010 function modefied for backward or forward only once, delay_us(1) added in current check function and shelter status echo back to master added, current limit was changed to 3696 and macro define added,