No Serial Port Is Available. Global Error
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.net Serial Port Library
Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users c# serial port readasync Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a c# serial port asynchronous read minute: Sign up Error opening Python Serial Port up vote 0 down vote favorite I am attempting to run a script that a classmate has written and demonstrated to me. So I know the code is correct, it just has to do with the difference in how our machines are configured. Here is the code: #!/usr/bin/python #import statements import serial import
Serialport Basestream Readasync
os import time #global constants control_byte = '\n' ACL_1_X_addr = ord('X') ACL_1_Y_addr = ord('Y') ACL_1_Z_addr = ord('Z') GYRO_1_X_addr = ord('I') GYRO_1_Y_addr = ord('J') GYRO_1_Z_addr = ord('K') #clear the screen os.system('clear') #initialize the serial port s = serial.Serial() s.port = 10 s.baudrate = 56818 s.open() Everything runs up to the last line s.open where it gives me the error: Traceback (most recent call last): File "serial_reader.py", line 25, in
peripheral devices, I use serial data streams a lot. Mostly USB virtual serial posts from FTDI, but also the USB Communication Device ben voigt serial port Class and real 16550-compatible UARTs on the PCI bus. Since looking at c# serialport datareceived data through an in-circuit emulator debug interface is generally a miserable experience, getting serial data communication with a
C# Serial Port Alternative
custom PC application is essential to analyzing data quality and providing feedback on hardware designs. C# and the .NET Framework provide a rapid application development that is ideal for http://stackoverflow.com/questions/19670110/error-opening-python-serial-port early development that needs to track changing requirements as hardware designs evolve. Ideal in most respects, I should say. The System.IO.Ports.SerialPort class which ships with .NET is a glaring exception. To put it mildly, it was designed by computer scientists operating far outside their area of core competence. They neither understood the characteristics of serial communication, nor common use cases, http://www.sparxeng.com/blog/software/must-use-net-system-io-ports-serialport and it shows. Nor could it have been tested in any real world scenario prior to shipping, without finding flaws that litter both the documented interface and the undocumented behavior and make reliable communication using System.IO.Ports.SerialPort (henceforth IOPSP) a real nightmare. (Plenty of evidence on StackOverflow attests to this, from devices that work in Hyperterminal but not .NET because IOPSP makes setting certain parameters mandatory, although they aren’t applicable to virtual ports, and closes the port on failure. There’s no way to bypass or ignore failure of these settings during IOPSP initialization.) What’s even more astonishing is that this level of failure occurred when the underlying kernel32.dll APIs are immensely better (I’ve used the WinAPI before working with .NET, and still do when I want to use a function that .NET doesn’t have a wrapper for, which notably includes device enumeration). The .NET engineers not only failed to devise a reasonable interface, they chose to disregard the WinAPI design which was very mature, nor did they learn from two decades of kernel team experience with s
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from GoogleSign inHidden fieldsBooksbooks.google.com - Embedded Microcomputer Systems: Real Time Interfacing provides an in-depth discussion of the design of real-time embedded systems using 9S12 microcontrollers. This book covers the hardware aspects of interfacing, advanced software topics (including interrupts), and a systems approach to typical embedded...https://books.google.com/books/about/Embedded_Microcomputer_Systems_Real_Time.html?id=dSMJAAAAQBAJ&utm_source=gb-gplus-shareEmbedded Microcomputer Systems: Real Time InterfacingMy libraryHelpAdvanced Book SearchGet print bookNo eBook availableCengageBrain.comAmazon.comBarnes&Noble.comBooks-A-MillionIndieBoundFind in a libraryAll sellers»Get Textbooks on Google PlayRent and save from the world's largest eBookstore. Read, highlight, and take notes, across web, tablet, and phone.Go to Google Play Now »Embedded Microcomputer Systems: Real Time InterfacingJonathan W. ValvanoCengage Learning, Jan 1, 2011 - Technology & Engineering - 793 pages 0 Reviewshttps://books.google.com/books/about/Embedded_Microcomputer_Systems_Real_Time.html?id=dSMJAAAAQBAJEmbedded Microcomputer Systems: Real Time Interfacing provides an in-depth discussion of the design of real-time embedded systems using 9S12 microcontrollers. This book covers the hardware aspects of interfacing, advanced software topics (including interrupts), and a systems approach to typical embedded applications. This text stands out from other microcomputer systems books because of its balanced, in-depth treatment of both hardware and software issues important in real time embedded systems design. It features a wealth of detailed case studies that demonstrate basic concepts in the context of actual working examples of systems. It also features a unique simulation software package on the bound-in CD-ROM (called Test Execute and Simulate, or TExaS, for short) that provides a self-contained software environment for designing, writing, implementing, and testing both the hardware and software components of embedded systems.Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version. Preview this book » What people are saying-Write a reviewWe haven't found any reviews in the usual places.Selected pagesTitle PageTable of ContentsIndexContentsMicrocomputerBased Systems1 Design of Software Systems60 Interfacing Methods150 Interrupt Synchronization189 RealTime Operating Systems251 Timing Generation and Measurements288 Serial IO Devices3