vb.net barcode scanner programming BITWISE PORT PROGRAMMING in Software

Generating QR Code JIS X 0510 in Software BITWISE PORT PROGRAMMING

14.10 BITWISE PORT PROGRAMMING
Scanning QR Code JIS X 0510 In None
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QR Code Creation In None
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X var word mask var byte mask = %111 do X = INS >> 12 X = X & mask X = X + 1 X = X // 8 X = X << 3 OUTS = X loop ' ' ' ' ' ' ' ' Just want the value of three bits Repeat Program Forever Input Bits are 12 to 14, Shift Down Mask any other bits Increment Output Value Make sure "X" is not greater than 7 Output Bits are 3 to 5, Shift Up Output the Incremented Input
Recognize QR In None
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Draw Quick Response Code In C#
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14.10.2 CONVERTING A VALUE INTO A BINARY-FORMAT STRING
Paint Quick Response Code In Visual Studio .NET
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Numeric values can be readily converted into a string of 0s and 1s by testing to see which power of two bits are set in the value.
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OutputString var byte(8) Power2 var byte Temp var byte X var byte i var byte X = 47 Power2 = 1 for i = 0 to 7 Temp = X & Power2 if (Temp = 0) then OutputString(i) = "0" else OutputString = "1" endif Power2 = Power2 2 next ' ' ' ' ' ' ' ' 8 Bit Output String Power of 2 Variable Value to Convert Counter Initialize the value to convert Start at 2 to the power 0 Temp uses Power2 to Test Bits If Bit is Zero, put in OutputString
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Paint Data Matrix In None
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Increment the Bit to be Tested
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' Output/Process "OutputString" end ' Finished, "OutputString" has Bit Values
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14.10.3 SUMMING BITS INTO A DECIMAL VALUE
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Generate UPCA In Objective-C
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You will have plenty of occasions to convert a set of binary digits into a decimal value. This can be accomplished using the reverse of the previous program:
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Code 128 Code Set A Recognizer In Visual Basic .NET
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InputString var byte (8) Power2 var byte Temp var byte X var byte i var byte InputString(0) = '1' InputString(1) = '1' InputString(2) = '0' ' ' ' ' ' 8 Bit Input Value String Power of 2 Variable Converted Value Counter Define the Input Data
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Data Matrix 2d Barcode Scanner In C#
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COMPUTER PERIPHERALS
InputString(3) = '1' InputString(4) = '1' InputString(5) = '1' InputString(6) = '0' InputString(7) = '0' X = 0 ' Clear the Value Power2 = 1 ' Start at 2 to the power 0 for i = 0 to 7 if (InputString(i) = '1') then X = X + Power2 ' If Bit is Set, then Add Power to Sum endif Power2 = Power2 2 ' Increment the Bit Value to be Tested next ' Output/Process "X" end ' Finished, "X" has Value of the Bits
14.11 From Here
To learn more about . . . Motor specifications Interfacing circuitry to DC motor loads Computers and microcontrollers for robotic control Input and output Interfacing sensors Read 19, Choosing the Right Motor 20, Working with DC Motors 12, An Overview of Robot Brains 15, The BASIC Stamp 2 Microcontroller Part 6, Sensors and Navigation
CHAPTER
THE BASIC STAMP 2 MICROCONTROLLER
f you are familiar with the second edition of this book, you know that the example robot control circuits and programs were written for four different platforms: the PC s parallel port, the Parallax BASIC Stamp, the BasicX microcontroller (MCU), and the OOPic microcontroller. Each of these different platforms provides unique capabilities, but the end result was a book with a bit of a mishmash of different applications, which required the reader to understand each of the different hardware and software development platforms to know what the application was doing and how to convert (or port) it to the one that would be used with the robot. To simplify the book and your work in understanding how each application is to be implemented, it was decided to cut down the number of robot controllers described in the book to one. Choosing a single example microcontroller with software for the book was not an easy task because there are literally hundreds of different microcontrollers with an equal number of software development tools that go with them. In the end, the decision was made to go with the Parallax BASIC Stamp 2 (abbreviated BS2), one of the devices that was already described in the second edition. The BS2 has the following features, which make it a good choice for new robot developers: Low cost for the MCU, and development software Programmer interface is built into the MCU Built-in +5 V regulator with 100 mA output capability Full-featured BASIC derivative language with many enhancements
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