1. Manuals
  2. Brands
  3. Parallax Manuals
  4. Microcontrollers
  5. BASIC Stamp II
  6. Manual

Parallax BASIC Stamp II Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
BASIC Stamp II
Thank you for purchasing the BASIC Stamp Programming Package.
This is the manual for our new BASIC Stamp II module (shown above).
Everything you need to know about programming the Stamp II may
be found in this manual. However, even if you're only interested in the
Stamp II, you may gain useful knowledge by referring to the Stamp I
manual. The Stamp I manual has a collection of interesting application
notes, which may only need slight modification to run on the Stamp II.
If you have any questions, please let us know.
BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the BASIC Stamp II and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Parallax BASIC Stamp II

Summary of Contents for Parallax BASIC Stamp II

  • Page 1 The Stamp I manual has a collection of interesting application notes, which may only need slight modification to run on the Stamp II. If you have any questions, please let us know. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 1...
  • Page 2 BLANK PAGE...

  • Page 3: Table Of Contents

    LOOKDOWN ..................41 LOOKUP ....................42 LOW ..................... 43 NAP ...................... 44 OUTPUT ....................45 PAUSE ....................46 PULSIN ....................47 PULSOUT ..................... 48 PWM ....................49 BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 3...
  • Page 4 XOUT ....................68 Stamp II Application Notes ............69 Note 1: Controlling lights and appliances with X-10 (XOUT) ....69 Note 2: Using SHIFTIN and SHIFTOUT ..........75 Page 4 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 5: Hardware Setup

    • Stamp II programming cable (serial port DB9-to-DB9) • Stamp II manual (this booklet) • 3.5-inch diskette If any items are missing, please let us know. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 5...

  • Page 6: Connecting To The Pc

    4) Supply power to the carrier board, either by connecting a 9-volt battery or by providing an external power source. Prototyping Area 9-volt Battery Clips Header Reset BS2-IC Button Socket RS-232 Serial Header Port Page 6 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 7: Bs2-Ic Pinout

    ** During normal operation, the Stamp II takes about 7 mA. In various power-down modes, con- sumption can be reduced to about 50 µA. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 7...

  • Page 8: Using The Editor

    DSR and RTS (this connection is made on the carrier board). If the DSR-RTS connection is not present, then you must tell the software which port to use, as shown above. Page 8 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 9: Entering & Editing Programs

    Show memory usage maps Alt-I Show version number of BASIC interpreter Alt-Q Quit editor and return to DOS Enter Enter information and move down one line Same as Enter BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 9...
  • Page 10 Cut marked text and place in clipboard Alt-C Copy marked text to clipboard Alt-V Paste (insert) clipboard text at cursor Alt-F Find string (establish search information) Alt-N Find next occurrence of string Page 10 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 11: Basic Instruction Summary

    Make pin output low. Make pin output high. HIGH Make pin an output and toggle state. TOGGLE Measure an input pulse (resolution of 2 µs). PULSIN BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 11...
  • Page 12 Output PWM, then return pin to input. This can be used to output analog voltages (0-5V) using a capacitor and resistor. Measure an RC charge/discharge time. Can be RCTIME used to measure potentiometers. Page 12 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...
  • Page 13 Sleep until the power cycles or the PC connects. Power consumption is reduced to approximately 50 µA. PROGRAM DEBUGGING Send variables to PC for viewing. DEBUG BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 13...

  • Page 14: Programming The Stamp Ii

    This memory is cleared each time the BS2 is powered up, reset, or down- loaded to. The 2K-byte EEPROM is arranged as follows: byte $000 Data start Data end Program end byte $7FF Program start Page 14 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...
  • Page 15 INH the low bit of INS (corresponds to I/O pin P0) IN15 the high bit of INS (corresponds to I/O pin P15) BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 15...
  • Page 16 DIRH DIR0 the low bit of DIRS - corresponds to pin P0 DIR15 the high bit of DIRS - corresponds to pin p15 Page 16 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 17: Defining Variables (Var)

    ‘make “mouse” a bit variable byte ‘make “dog” a byte variable rhino word ‘make “rhino” a word variable snake bit(10) ‘make “snake” a 10-piece bit variable BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 17...
  • Page 18 LOWBYTE ‘low byte of a word HIGHBYTE ‘high byte of a word BYTE0 ‘byte0 (low byte) of a word BYTE1 ‘byte1 (high byte) of a word Page 18 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...
  • Page 19 - symbol is a unique name for a variable - size is either WORD, BYTE, NIB, or BIT - (array) is an optional expression which declares an array size For defining variables-within-variables or alias-variables: BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 19...

  • Page 20: Defining Constants (Con)

    ‘“level” is same as 10 in program limit CON 10*4<<2 ‘“limit” is 160 expressions after CON can contain the following binary operators and are resolved left-to-right: Page 20 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 21: Defining Data (Data)

    0; “Here is a string...” is broken into individual bytes and placed into EEPROM memory sequentially. Alt-M and two <SPACE>s will show you the result of this line. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 21...
  • Page 22 • Byte-size data is assumed, but ‘word’ can be used to break a word into two bytes of storage. • The @ sign is used to redirect the DATA pointer. If a symbol preceeds Page 22 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 23: Run-Time Expressions

    “DOG” becomes “D”,”O”,”G”. “String”+$80 becomes: “S”,”t”,”r”,”i”,”n”,”g”+$80. Variables can be accessed a number of ways: somevar Some variable. wordvar.highbit Use modifiers to access sub-variables. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 23...
  • Page 24 0-255 radial units. Sine of 8-bit value. Result is in the range of +-127, unit circle is 0-255 radial units. Examples: sin bytevar Page 24 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...
  • Page 25 Parentheses can be placed to special-order the pattern of expression resolution. Though unary operators have highest priority and binary operators have secondary priority, and with those rules expressions BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 25...
  • Page 26 To summarize, here are some examples: outs = ~ dcd nibarray(index) ‘lookup a nibble, decode it, not it IF x<1 or not y>3 and (z=0 xor r=3) then loopback Page 26 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 27: Basic Instructions

    If index=0, a GOTO label0 will be executed. If index=1, a GOTO label1 will be executed. If the index exceeds the number of label entries, no branch will occur and execution will proceed at the next instruction. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 27...

  • Page 28: Button

    Label specifies where to go if the button is in the target state. Please refer to the Stamp I manual for an in-depth description of the BUTTON instruction. Page 28 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 29: Count

    Note that a word variable (16 bits) must be used to count above 255. If you only need values between 0-255, then a byte variable will work. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 29...

  • Page 30: Debug

    Print value in signed hex - 1-4 digits IHEX value Print value in hex w/’$’ IHEX1-IHEX4 value Print value in hex w/’$’ - 1-4 digits Page 30 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...
  • Page 31 = count + 1 ’Increment count if count <> 0 then loop2 ’Loop until count rolls over pause 1000 ’Pause for 1 second goto loop1 ’Repeat the program BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 31...

  • Page 32: Dtmfout

    The pin may be filtered by an RC circuit to achieve a clean sine-wave. High-impedance speakers may be driven with a coupling cap and a filter cap (see below). Page 32 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 33: End

    Enter low-power mode and keep I/O’s updated. Every ~2.3 seconds the I/O’s will go high-z for ~18ms. Approximately 50µa average cur- rent will be consumed. END is terminated only by a hardware reset. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 33...

  • Page 34: For

    TO 0' without specifying a negative STEP value.). FOR...NEXT loops can be nested up to 16 deep. Note: NEXT is stand-alone and implies the variable from the last FOR statement. Page 34 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 35: Freqout

    The pin may be filtered by an RC circuit to achieve a clean sine-wave. High-impedance speakers may be driven with a coupling cap and a filter cap (see below). BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 35...

  • Page 36: Gosub

    RETURN is encountered (in ledset), execution continues at the in- struction following the GOSUB. GOSUB’s may be nested up to 4 deep and you are allowed 255 of them in your program. Page 36 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 37: Goto

    GOTO Go to a new point in the program. usage: GOTO joe A branch to joe will occur, rather than execution continuing at the next instruction. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 37...

  • Page 38: High

    Make a pin an output and have it output 1. usage: HIGH pin Pin is 0-15. Make the pin an output, and change its output latch to 1. Page 38 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...
  • Page 39 IF x=1 then redoit If the result of conditionalexpression is not 0, execution will be contin- ued at label. Otherwise, execution continues at the next instruction. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 39...

  • Page 40: Input

    BASIC Stamp II INPUT Make a pin an input. usage: INPUT pin Pin is 0-15. Make a pin an input. The pin’s output latch is unaffected. Page 40 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 41: Lookdown

    This process continues until a true is yielded, at which time the index is written into variable, or until all entries are exhausted, in which case variable is unaffected. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 41...

  • Page 42: Lookup

    If index=0, then value0 will be written to variable. If index=1, then value1 will be written to variable. If the index exceeds the number of value entries, then variable will not be affected. Page 42 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 43: Low

    Make a pin an output and have it output 0. usage: LOW pin Pin is 0-15. Make the pin an output, and change its output latch to 0. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 43...

  • Page 44: Nap

    I/O’s will go high-z for ~18ms and execution will continue at the next instruction. The x values for NAP are as follows: ~seconds 0.018 0.036 0.072 0.140 0.290 0.580 1.200 2.300 Page 44 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 45: Output

    OUTPUT Make a pin an output. usage: OUTPUT pin Pin is 0-15. The pin will be made an output. The pin’s output latch is not affected. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 45...

  • Page 46: Pause

    BASIC Stamp II PAUSE Pause for x milliseconds (x=0 to 65535). usage: PAUSE x A delay of x milliseconds will occur. Page 46 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 47: Pulsin

    2µs resolution, and the result will be written into variable. If an overflow occurs while waiting for any edge, (>65535*2µs or >131ms), 0 will be written into variable. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 47...

  • Page 48: Pulsout

    Pin will be left in output mode with OUTx state. Period may be a value from 0-65535; a value of 0 will result in no output pulse. Page 48 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 49: Pwm

    A digital-to-analog converter can be made by connecting the pin to a resistor which goes to a cap which goes to GND. The resistor-cap junc- tion will reflect the duty (0-5V) during and after PWM (see below). BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 49...

  • Page 50: Random

    BASIC Stamp II RANDOM Pseudo-randomly iterate a word variable. usage: RANDOM wordvariable wordvariable will be iterated 16 times to potentially change every bit. Page 50 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 51: Rctime

    Loop: HIGH 0 'Discharge capacitor PAUSE 1 'Allow time for discharge RCTIME 0,1,Pot 'Measure chrage time DEBUG ?Pot 'Show result on PC GOTO loop 'Repeat the process BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 51...

  • Page 52: Read

    BASIC Stamp II READ Read a byte from the EEPROM. usage: READ location,variable Location is 0-2047. Variable will receive the byte read from location. Page 52 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 53: Return

    The execution point is set to the instruction after the GOSUB that got into the subroutine executing the RETURN. If a RETURN is executed without a corresponding GOSUB, execution begins anew at the start of the program. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 53...

  • Page 54: Reverse

    The pin will be changed from an input to an output, or from an output to an input. The state of its output latch is not affected. Page 54 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 55: Serin

    RS232 signals, so no in-line resistor is necessary. In either case, the low/high threshold is at 1.4 volts (anything below reads as 0, anything above reads as 1). BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 55...
  • Page 56 4800 baud, 8-bit, no parity, true data 84 +$6000 9600 baud, 7-bit, parity, inverted data 19200 baud, 8-bit, no parity, true data 38400 baud, 8-bit, no parity, true data Page 56 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...
  • Page 57 Input signed indicated hex value. ISHEX variable Input signed indicated hex value of fixed length. ISHEX1-ISHEX4 variable Input binary value. BIN variable Input binary value of fixed length. BIN1-BIN16 variable BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 57...
  • Page 58 Input indicated binary value of fixed length. IBIN1-IBIN16 variable Input signed indicated bin value. ISBIN variable Input signed indicated bin value of fixed length. ISBIN1-ISBIN16 variable Page 58 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 59: Serout

    Stamp II is connected has “real” +/- voltage generation circuitry. Real RS232 voltages are standard on most serial devices, such as PCs, printers, modems, etc. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 59...
  • Page 60 Timeout is an optional value that specifies how long to wait before giv- ing up and branching to tlabel. The amount of time is measured in Page 60 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...
  • Page 61 Outputdata follows the DEBUG formatting conventions. Please refer to the DEBUG description earlier in this manual. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 61...

  • Page 62: Shiftin

    Bits is an optional bit count. Values from 1-16 can be given; 8 is the default. The following symbols are defined for use with SHIFTIN: Symbol Value MSBPRE LSBPRE MSBPOST LSBPOST Page 62 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 63: Shiftout

    Bits is an optional bit count. Values from 1-16 can be given; 8 is the default. The following symbols are defined for use with SHIFTOUT: Symbol Value LSBFIRST MSBFIRST Data is shifted out at approximately 16 kbits per second. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 63...

  • Page 64: Sleep

    When x seconds have been accrued in SLEEP mode, execution contin- ues at the next instruction. Though the granularity of SLEEP is ~2.3 seconds, the error is within 1% over extended periods of time. Page 64 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 65: Stop

    Execution is frozen, but low-power mode is not entered. This is like END, except that the I/O’s never go high-z; they remain driven. Hardware reset will end STOP. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 65...

  • Page 66: Toggle

    The pin will be made an output and its output state (0 or 1) will be toggled: output of 0 is changed to 1; output 1 is changed to 0. Page 66 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

  • Page 67: Write

    BASIC Stamp II WRITE Write a byte into the EEPROM. usage: WRITE location,byte Location is 0-2047. Byte is 0-255. Byte will be written into location. BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 67...

  • Page 68: Xout

    Stamp II Pin Zpin Mpin Application note #1 gives a good description of the X-10 system, as well as how to use it with the Stamp II. Page 68 • BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333...

Table of Contents