User guide

121
VTB USER GUIDE
7 OPERATORS ............................................................................................................................. 33
7.1 Logic and Mathematical Operators ..................................................................................... 33
7.2 Notes on Expressions .......................................................................................................... 34
8 MATH FUNCTIONS ................................................................................................................. 35
8.1 SIN....................................................................................................................................... 35
8.2 COS ..................................................................................................................................... 35
8.3 SQR ..................................................................................................................................... 35
8.4 TAN ..................................................................................................................................... 35
8.5 ATAN ................................................................................................................................... 36
8.6 ASIN .................................................................................................................................... 36
8.7 ACOS .................................................................................................................................. 36
8.8 ATAN2 ................................................................................................................................. 37
8.9 ABS ..................................................................................................................................... 37
8.10 FABS ................................................................................................................................... 38
9 INSTRUCTIONS TO CONTROL THE PROGRAM FLOW ................................................... 39
9.1 IF-ELSE-ENDIF ................................................................................................................. 39
9.2 LABEL ................................................................................................................................ 39
9.3 GOSUB-RETURN .............................................................................................................. 40
9.4 GOTO .................................................................................................................................. 40
9.5 INC ...................................................................................................................................... 41
9.6 DEC ..................................................................................................................................... 41
9.7 SELECT-CASE-ENDSELECT ........................................................................................... 41
9.8 FOR-NEXT-STEP-EXITFOR ............................................................................................. 42
9.9 WHILE-LOOP-EXITWHILE ............................................................................................. 43
10 FUNZIONI ................................................................................................................................. 44
10.1 Declaration of a function ..................................................................................................... 44
10.2 Declaration of the function internal variables ..................................................................... 45
11 SYSTEM FUNCTIONS ............................................................................................................ 46
11.1 FUNCTIONS FOR THE SERIAL PORT CONTROL ....................................................... 46
SER_SETBAUD .......................................................................................................... 46
SER_MODE................................................................................................................. 46
SER_GETCHAR ......................................................................................................... 46
SER_PUTCHAR .......................................................................................................... 47
SER_PUTS................................................................................................................... 47
SER_PRINTL .............................................................................................................. 47
SER_PRINTF............................................................................................................... 48