Proxim RangeLAN2 7920 Uživatelský manuál stáhnout pdf (Strana 72)

//Flush serial port B & C input buffer

serBrdFlush();

serCrdFlush();

//Wait for the Heading message from compass card and convert to an integer

while ((n = serBread(HeadIn, MAXSIZE-1, TIMEOUT)) == 0) ;

HeadIn[n] = 0;

HDGMAG = atoi(HeadIn);

CTS = WPHEAD;

printf("cts = %f\n",CTS);

/*Apply magnetic dev and var corrections and determine velocity and time average hdg.*/

HDGTRU = HDGMAG + DEV + VAR;

if (SOG > 1) Speed = SOG;

else Speed = 0;

if (fabs(AVGCSE - HDGTRU) >= 20) AVGCSE = HDGTRU;

AVGCSE = (AVGCSE + HDGTRU + Speed*COG)/(2+Speed);

ABSDIFF = fabs(AVGCSE-CTS);

DIFF =(AVGCSE-CTS);

}

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Proxim RangeLAN2 7920 Uživatelský manuál Strana 72