PICBASIC PLUS LITE Manual - Profe Saul

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PICBASIC PLUS Compiler2.4. Customising the editor.The editor itself may be customised to a certain degree by choosing File->Editor Options.You will be presented with an options box that allows the syntax colours to bealtered along with how the editor handles tabs etc: -All the new settings are remembered by the compiler, so there’s no need to alter themevery time the editor is opened.10Copyright Crownhill 2001
PICBASIC PLUS Compiler3 - Program RulesAs with any language, there are rules you must follow when producing a program andPICBASIC PLUS is no exception. These are laid out in this section.3.1. Device specific issues.Before venturing into your latest project, always read the datasheet for the specific devicebeing used. Because some devices have features that may interfere with expectedpin operations. The PIC16C62x and the 16F62x devices are examples of this. ThesePICmicros have analogue comparators on PORTA. When these chips first power up,PORTA is set to analogue mode. This makes the pin functions on PORTA work in astrange manner. To change the pins to digital, simply add the following line near thefront of your BASIC program, or before any of the pins are accessed: -CMCON = 7Any PICmicro with analogue inputs, such as the PIC16C7xx, PIC16F87x andPIC12C67x series devices, will power up in analogue mode. If you intend to use themas digital types you must set the pins to digital by using the following line of code: -ADCON1 = 7Another example of potential problems is that bit-4 of PORTA (PortA.4) exhibits unusualbehaviour when used as an output. This is because the pin has an open drain outputrather than the usual bipolar stage as in the rest of the output pins. This means it canpull to ground when set to 0 (low), but it will simply float when set to a 1 (high), insteadof going high.To make this pin act as expected, add a pull-up resistor between the pin and 5 Volts. Atypical value resistor may be between 1K and 33K, depending on the device it is driving.If the pin is used as an input, it behaves the same as any other pin.Some PICmicros, such as the PIC16F87x range, allow low-voltage programming. Thisfunction takes over one of the PORTB (PortB.3) pins and can cause the device to acterratically if this pin is not pulled low. In normal use, It’s best to make sure that lowvoltageprogramming is disabled at the time the PICmicro is programmed. By default,the low voltage programming fuse is disabled, however, if the CONFIG directive is used,then it may inadvertently be omitted.All of the PICmicro pins are set to inputs on power-up. If you need a pin to be an output,set it to an output before you use it, or use a BASIC command that does it for you. Onceagain, always read the PICmicro data sheets to become familiar with the particular part.The name of the port pins on the PIC12C67x and 12CE67x devices is GPIO. The namefor the TRIS register is TRISIO: -GPIO.0 = 1TRISIO = %101010‘ Set GPIO.0 high‘ Manipulate ins and outs11Copyright Crownhill 2001
Page 2 and 3: PICBASIC PLUSLITECOMPILERVersion 1.
Page 4 and 5: PICBASIC PLUS CompilerTable of Cont
Page 6 and 7: Table of Contents (continued…)PIC
Page 8 and 9: PICBASIC PLUS Compiler1.2. PICBASIC
Page 10 and 11: PICBASIC PLUS Compiler2.3. Ready to
Page 14 and 15: PICBASIC PLUS Compiler3.2. Identifi
Page 16 and 17: PICBASIC PLUS Compiler3.8. Numeric
Page 18 and 19: PICBASIC PLUS Compiler4.3. Multiply
Page 20 and 21: 4.8. Bitwise operators.PICBASIC PLU
Page 22 and 23: PICBASIC PLUS Compiler5 - PICBASIC
Page 24 and 25: PICBASIC PLUS Compiler5.1. ADINSynt
Page 26 and 27: 5.2. ASM - ENDASM and @PICBASIC PLU
Page 28 and 29: PICBASIC PLUS Compiler5.4. BRANCHLS
Page 30 and 31: PICBASIC PLUS CompilerAddress, is a
Page 32 and 33: PICBASIC PLUS Compiler5.6. BUSOUTSy
Page 34 and 35: PICBASIC PLUS CompilerYou may imagi
Page 36 and 37: PICBASIC PLUS Compiler5.8. CDATASyn
Page 38 and 39: PICBASIC PLUS Compiler5.9. CLSSynta
Page 40 and 41: PICBASIC PLUS Compiler5.11. COUNTER
Page 42 and 43: PICBASIC PLUS Compiler5.13. CURSORS
Page 44 and 45: PICBASIC PLUS Compiler5.15. DATASyn
Page 46 and 47: BUSIN, BUSOUT Declares.LCD Declares
Page 48 and 49: PICBASIC PLUS CompilerDECLARE LCD_R
Page 50 and 51: PICBASIC PLUS CompilerIf the DECLAR
Page 52 and 53: PICBASIC PLUS Compiler5.17. DELAYMS
Page 54 and 55: PICBASIC PLUS Compiler5.19. DEVICES
Page 56 and 57: PICBASIC PLUS Compiler5.21. DIMSynt
Page 58 and 59: PICBASIC PLUS CompilerRAM space for
Page 60 and 61: PICBASIC PLUS Compiler5.23. ENDSynt
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PICBASIC PLUS Compiler5.25. EWRITES
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PICBASIC PLUS Compiler5.27. GOSUBSy
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PICBASIC PLUS Compiler5.29. HIGH (o
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PICBASIC PLUS CompilerThe ELSE is o
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PICBASIC PLUS CompilerFor example:
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PICBASIC PLUS Compiler5.33. INPUTSy
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PICBASIC PLUS Compiler5.35. LCDREAD
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PICBASIC PLUS Compiler5.37. LOOKDOW
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PICBASIC PLUS Compiler5.39. LOOKUPS
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5.41. LOW (or CLEAR)PICBASIC PLUS C
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PICBASIC PLUS CompilerInf:LOW LEDDE
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PICBASIC PLUS CompilerAlso the STAT
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PICBASIC PLUS CompilerCURSOR 1 , 3I
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PICBASIC PLUS Compiler5.44. ORGSynt
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PICBASIC PLUS Compiler5.46. PIXEL
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PICBASIC PLUS CompilerGraphic LCD p
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PICBASIC PLUS Compiler5.49. POTSynt
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PICBASIC PLUS CompilerSamsung S6B01
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PICBASIC PLUS CompilerUsing a Graph
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PICBASIC PLUS CompilerNotice the da
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PICBASIC PLUS CompilerThe below dia
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PICBASIC PLUS Compiler5.52. PULSOUT
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PICBASIC PLUS Compiler5.54. RANDOMS
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PICBASIC PLUS Compilerstops. With t
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PICBASIC PLUS Compiler5.56. READSyn
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5.58. REPEAT … UNTILPICBASIC PLUS
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PICBASIC PLUS Compiler5.60. RETURNS
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PICBASIC PLUS CompilerVirtually any
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PICBASIC PLUS CompilerDECLARE RSOUT
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PICBASIC PLUS CompilerThe width of
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PICBASIC PLUS Compiler5.65. SHINSyn
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PICBASIC PLUS Compiler5.66. SHOUTSy
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PICBASIC PLUS Compiler5.67. SNOOZES
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PICBASIC PLUS CompilerAnother metho
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PICBASIC PLUS Compiler5.69. SOUNDSy
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PICBASIC PLUS Compiler5.71. SWAPSyn
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PICBASIC PLUS Compiler5.73. UNPLOTS
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PICBASIC PLUS Compiler6 - Incorpora
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PICBASIC PLUS CompilerAssembler Var
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PICBASIC PLUS CompilerMemory Manipu
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PICBASIC PLUS CompilerAlso, numeric
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PICBASIC PLUS CompilerIf the EPIC t
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