barcode reader application in asp.net DEBUGGING YOUR APPLICATIONS in Software

Generator QR Code in Software DEBUGGING YOUR APPLICATIONS

DEBUGGING YOUR APPLICATIONS
QR Recognizer In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Making QR In None
Using Barcode generation for Software Control to generate, create QR Code ISO/IEC18004 image in Software applications.
didn t react to something that did not work exactly as expected, even though it was thought to be good enough. If you have a suspicion that something isn t right, then you should go out and x it before the problem escapes, and you end up with a reputation for shipping shoddy products. When I have a PIC microcontroller application that isn t running properly, the rst things that I check are
Scan QR In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
QR Code ISO/IEC18004 Drawer In Visual C#
Using Barcode printer for Visual Studio .NET Control to generate, create Denso QR Bar Code image in .NET framework applications.
1 Power 2 Reset 3 Clocks
Generating QR Code 2d Barcode In VS .NET
Using Barcode generation for ASP.NET Control to generate, create QR-Code image in ASP.NET applications.
Paint QR-Code In Visual Studio .NET
Using Barcode creation for Visual Studio .NET Control to generate, create QR-Code image in .NET applications.
Fully 90 percent of the problems that I get called on to x have issues in one of these three areas. These values can be checked quickly using a logic or oscilloscope probe. Once this is done, I carry out a scan around the PIC MCU to look at all the input and output voltage levels. It shouldn t be surprising that I record (document) what I observe on a sheet of paper for later comparison against the expected state. Digital logic levels can be checked with a logic probe but not voltage levels. When you rst work with your applications, you may want to check the signal pins with both a logic probe and an oscilloscope or a voltmeter until you get a good understanding of what to expect when probing these pins and which tool works best for you. When checking a PIC microcontroller s external crystal or ceramic resonator oscillator, make sure that you probe both pins with a logic probe or oscilloscope to make sure that the capacitance of the probe doesn t inadvertently set the application running. This will happen with the PIC MCU s OscIn pin but not with the OscOut pin because the extra capacitance of the probe will cause a current ow to the probe tip, which will change the voltage level of the input and cause the oscillator to start running. The best way to avoid this problem is to use a very low impedance FET oscilloscope probe or to check both pins in the case that the probe time affected the operation of the oscillator. When you have done this, compare your notes with what the expected values are. This is an important point because I can t tell you how often I ve thought I ve caught a problem only to discover that I miscounted the pins and was looking at the wrong one, and the one that I thought had a problem was in the correct state. Any actual discrepancies you nd can be put in one of two buckets : the ones that are caused by an external device driving the pin to the invalid state and the ones cause by the application code driving the pin incorrectly. To discover where the problem lies, an ohm meter check is used before and after isolating the input-output (I/O) pin from the circuit. This is known as a oating the pin and can be checked by removing the PIC microcontroller and bending the pin out or breaking the connection from the pin to the circuit. Personally, I prefer breaking the connection to bending the pin; the metal used in chip pins tends to be brittle and easily broken if it is bent back and forth even once. If the circuit turns out to be okay, then you put the circuitry back together (i.e., restore lines by soldering them together), look back at the application code, and try to gure out why the pin could be in an invalid state. When you are looking around the circuit, it is very important to not make any assumptions about what you think the problem is. I call the state of mind that you must be in
Make QR-Code In Visual Basic .NET
Using Barcode creation for .NET framework Control to generate, create QR Code ISO/IEC18004 image in .NET framework applications.
Paint Barcode In None
Using Barcode drawer for Software Control to generate, create bar code image in Software applications.
ANSI/AIM Code 39 Printer In None
Using Barcode creation for Software Control to generate, create Code39 image in Software applications.
Making GTIN - 12 In None
Using Barcode printer for Software Control to generate, create GTIN - 12 image in Software applications.
DataMatrix Printer In None
Using Barcode creator for Software Control to generate, create Data Matrix image in Software applications.
Print Barcode In None
Using Barcode maker for Software Control to generate, create barcode image in Software applications.
Generating Planet In None
Using Barcode creator for Software Control to generate, create USPS PLANET Barcode image in Software applications.
UPC Code Generation In None
Using Barcode creator for Office Word Control to generate, create UCC - 12 image in Office Word applications.
Matrix 2D Barcode Printer In Visual Basic .NET
Using Barcode creator for .NET Control to generate, create Matrix Barcode image in VS .NET applications.
Make 1D In Java
Using Barcode creator for Java Control to generate, create Linear Barcode image in Java applications.
Creating Bar Code In .NET
Using Barcode maker for ASP.NET Control to generate, create barcode image in ASP.NET applications.
Reading USS Code 128 In VB.NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
Printing 2D Barcode In Visual C#.NET
Using Barcode generation for .NET Control to generate, create Matrix 2D Barcode image in VS .NET applications.
Barcode Drawer In Objective-C
Using Barcode generation for iPad Control to generate, create bar code image in iPad applications.
Copyright © OnBarcode.com . All rights reserved.