BASIC SDK Help

INDEX

• BASIC COMMAND DICTIONARY

• SCIENTIFIC & MATHEMATICAL CALCULATIONS

• BASIC COMPOSITION

• BASIC VARIABLE

• Entering Numeric and Characters

• Priority of Calculation

• FILE Commands

• ERROR MESSAGES

• CHARACTER CODE TABLE

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  BASIC COMMAND DICTIONARY

  The following pages contain an alphabetic listing of the BASIC commands that you can use on the device.

  For simplicity, the following conventions have been adopted in compiling this dictionary:

  expression	Indicates a numeric value, numerical variable or a formula including numeric values and numerical variables.
  variable	Indicates a numerical variable or string variable including array variables.
  "string"	Indicates a character string enclosed in quotation marks.
  string variable	Indicates a string variable or string array variable.
  Line number	Indicates a line number (10-30000)
  *label	Indicates *label.
  d:	Indicates a device name. The following are device names used on the device: E:FLASH disk E: COM:Serial I/O device
  [ ]	The parameter in square brackets is optional. The brackets themselves are not part of the command entry.
  ( )	Used to enclose parameter values in certain commands. They should be entered as part of the command.
  " "	Used to enclose string parameter values in certain commands.
  A B	A or B can be selected.

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  INDEX of Commands

  AND   ASC
  BEEP
  CHR$   CIRCLE   CLEAR   CLS
  DATA   DATE$   DEGREE   DIM
  END   ERASE
  FOR...NEXT
  GCURSOR   GLEN   GOSUB...RETURN   GOTO   GPRINT   GRAD
  HEX$
  IF...THEN...ELSE   INKEY$   INPUT
  LEFT$   LEN   LET   LINE   LOCATE
  MDF   MID$
  NOT
  ON...GOSUB   ON...GOTO   OR
  PAINT   POINT   PRESET   PRINT   PSET
  RADIAN   RANDOMIZE   READ   REM(')   RESTORE   RIGHT$   RND
  STOP   STR$
  TIME$
  USING
  VAL
  VER
  WAIT
  XOR

  
  Data File Access Commands

  CLOSE
  EOF
  FRE
  INPUT#
  KILL
  LOF
  OPEN
  PRINT#

  
  Error Trap Commands

  ERL
  ERN
  ON ERROR GOTO
  RESUME

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  BASIC COMPOSITION

  BASIC PROGRAM is composed line.

  Line is as follow.
      line number_[*label name:] Statement    (_ is space.)
      line number : Indicates a line number (10-30000)
      label name : Max character length is 16.
      Statement : Command or expression.
      Max line length is 255 characters.

  Multi Statement:
  line number_[*label name:] Statement [:Statement]    (_ is space.)

  In some case, error will be occurred or error number message (error number or  error line number, or result of ERL/ERN function) is no correct in Multi Statement.  Please don't use Multi-statement in that case.

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  BASIC VARIABLE

  The kinds of variables as following.

  NUMERIC VARIABLE:	NUMERIC SINGLE VARIABLE NUMERIC ARRAY VARIABLE	AB,BQ etc. AB(2,3) etc.
  STRING VARIABLE:	STRING SINGLE VARIABLE STRING ARRAY VARIABLE	AB$,BQ$ etc. AB$(2,3) etc.

  The variable name consists of a letter and up to 2 alphanumeric characters. For string variables, "$" is attached to the end of the variable name. String variable is 16 character length in default. To change length, refer "DIM" Command. Numerical array and string array variables are recognized as different arrays. At the beginning of a program whole variables are cleared. Refer "DIM" Command for array variable.

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  Entering Numeric and Characters

  Numeric entering
      Normal numbers
          plus +0.000000001  -  +9999999999
          minus -0.000000001  -  -9999999999
          ZERO 0

      Exponent numbers
          plus +1E-99  -  +9.999999999E99  = +1*10^-99   -  +9.999999999*10⁹⁹
          minus -1E-99  -  -9.999999999E99  = -1*10^-99   -  -9.999999999*10⁹⁹

      Hexadecimal numbers
          & Hx  0 <= x <= 2540BE3FF

  Note  Hexadecimal numbers needs more time to execute than normal numbers, please use normal numbers in the program which needs speedy execution.

  Strings
          "String"   : Character length is 255.

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  Priority of Calculation

  1:    PI 
  2:    FUNCTION
  3:    ^ 
  4:    SIGN(+, -)
  5:    *, /
  6:    +, -
  7:    >, >=, <, <=, <>, =
  8:    AND, OR, XOR

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  FILE Commands

  File can be used using with the commands as following.

  If the software version is the version that the VER function result is "49, 50", there is the possibility that the file commands do not work correct.  So please check the software version before using FILE commands like as shown in EXAMPLE, and do not execute file command if the version is "49, 50".

  COMMANDS FOR FILE

  OPEN/CLOSE/KILL/EOF/LOF/FRE/PRINT#/INPUT#

  EXAMPLE:
  10 A=VER
  20 IF (A<>49)*(A<>50) THEN 100
  30 PRINT "This Program cannot be used this version software."
  40 PRINT " Please use this program after system up-date."
  50 WAIT
  60 PRINT"(HIT ENTER KEY FOR EXIT)"
  70 END
  100 CLEAR
  110 ...

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  CHARACTER CODE TABLE