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237 lines
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<title>9. Connection Window — SavvyCAN 189 documentation</title>
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<div class="section" id="connection-window">
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<h1><span class="section-number">9. </span>Connection Window<a class="headerlink" href="#connection-window" title="Permalink to this headline">¶</a></h1>
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<p>.</p>
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<img alt="_images/ConnectionWindow.png" src="_images/ConnectionWindow.png" />
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<p>The connection window is used to add, remove, and modify connections. At the moment it is possible
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to use any QT SerialBus compatible device and any GVRET compatible device in any of the supported
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operating systems. SerialBus supports socketcan on linux, passthrough on Linux and Windows 32
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bit, and Vector, PeakCAN, and TinyCAN on supported OS’s.</p>
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<p>At this time GVRET compatible devices are: EVTVDue, EVTV CANDue (1.3/2/2.1/2.2),
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Teensy 3.1-3.6, Macchina M2, EVTV ESP32 Due.</p>
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</div>
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<div class="section" id="connecting-to-a-dongle">
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<h1><span class="section-number">10. </span>Connecting To A Dongle<a class="headerlink" href="#connecting-to-a-dongle" title="Permalink to this headline">¶</a></h1>
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<p>SavvyCAN is able to connect to GVRET compatible devices to capture new traffic. These
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devices will present as serial ports on the connected PC.
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To connect to a dongle select the proper serial port and click “Create New Connection”.
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If a valid device is found on that serial port the first statusbar section will update
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and the currently set canbus speeds will show in the table at the left of the window.
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These speeds can then be changed by clicking on the speed (or otherwise selecting the cell
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in the table) and typing in a new value. Leaving the cell will update the speed to the new
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value. GVRET devices also support setting “listen only” on each bus. This mode causes the
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device to not acknowledge any traffic or try to modify the bus at all. It is as it says,
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a mode where you can only listen to whatever traffic is found on the bus. Some older GVRET
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devices supported a mode where you could change the second bus between single wire CAN
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and normal CAN. This is deprecated. However, newer GVRET devices have dedicated single
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wire CAN buses and the relevant bus will show the checkbox.</p>
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<p>SavvyCAN can also connect to a wide variety of CAN hardware through the built-in QT
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SerialBus drivers. These drivers vary by operating system but support socketcan on LINUX
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and Vector tools on both LINUX and Windows. When you select “QT SerialBus Devices” you will
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get a list of device types supported. Select a device type and for most devices you should see
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the Port list fill out with all registered and valid ports for that driver. Socketcan devices, for
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instance, are automatically detected now. Then push “Create New Connection” and you should
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see the new connection in the table on the left of the window. Note that SocketCAN devices
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don’t support changing the baud rate within a program. You must do this when you set up
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the connection via console commands. This is outside the scope of this documentation.
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Consult the SocketCAN documentation for details on configuring such devices.</p>
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<p>The last connection option is “Remote Host.” If you select this option then Port will change
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to a textbox. Enter the IP address of the remote (but still local to your LAN) IP address. Currently
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this works with EVTV ESP32 boards and M2 boards.</p>
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</div>
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<div class="section" id="debugging-connection-problems">
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<h1><span class="section-number">11. </span>Debugging Connection Problems<a class="headerlink" href="#debugging-connection-problems" title="Permalink to this headline">¶</a></h1>
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<p>GVRET devices present as serial ports and have significant configuration options.
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However, the ability to configure so many things and the ability to compile the firmware
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yourself both come as a double edged sword. They present many opportunities for things
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to go wrong. Because of this there is a debugging console present on the connection window.
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Click a bus in the table then click “Enable Console” to cause it to start logging serial
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traffic. From this console you can see what is going on. It shows what SavvyCAN is sending
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and what it is getting back. It has extended status messages that might help to narrow down
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what is going wrong. Additionally, if you’re feeling adventurous you can send traffic to
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the serial device from the Send line. “Send Hex” accepts a set of hex values separated
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by spaces. “Send Text” will send the raw text you type on the line. GVRET traffic is
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ordinarily binary so “Send Text” won’t work very well for that. But, there is also a
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text console possible on GVRET devices. If you connect to them with a serial program you can
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configure things via a text console. Type ? and follow it up with some form of line
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ending (Cr, Lf, CrLf, any will work).</p>
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</div>
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</div>
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</div>
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</div>
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<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
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<div class="sphinxsidebarwrapper">
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<h1 class="logo"><a href="index.html">SavvyCAN</a></h1>
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<h3>Navigation</h3>
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<ul class="current">
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<li class="toctree-l1"><a class="reference internal" href="mainscreen.html">1. Main / Start Up Screen</a></li>
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<li class="toctree-l1"><a class="reference internal" href="mainscreen.html#the-main-frame-list">2. The Main Frame List</a></li>
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<li class="toctree-l1"><a class="reference internal" href="mainscreen.html#the-bottom-statusbar">3. The Bottom Statusbar</a></li>
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<li class="toctree-l1"><a class="reference internal" href="mainscreen.html#the-rest-of-the-main-window">4. The Rest of the Main Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="mainscreen.html#loading-and-saving-frames">5. Loading And Saving Frames</a></li>
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<li class="toctree-l1"><a class="reference internal" href="mainscreen.html#filters">6. Filters</a></li>
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<li class="toctree-l1"><a class="reference internal" href="mainscreen.html#what-is-dbc-and-why-would-i-care">7. What is DBC and why would I care?!</a></li>
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<li class="toctree-l1"><a class="reference internal" href="mainscreen.html#how-dbc-interacts-with-the-main-screen">8. How DBC interacts with the main screen?</a></li>
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<li class="toctree-l1 current"><a class="current reference internal" href="#">9. Connection Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="#connecting-to-a-dongle">10. Connecting To A Dongle</a></li>
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<li class="toctree-l1"><a class="reference internal" href="#debugging-connection-problems">11. Debugging Connection Problems</a></li>
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<li class="toctree-l1"><a class="reference internal" href="preferences.html">12. Preference Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="preferences.html#setting-preferences">13. Setting Preferences</a></li>
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<li class="toctree-l1"><a class="reference internal" href="dbc_manager.html">14. DBC File Manager</a></li>
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<li class="toctree-l1"><a class="reference internal" href="dbc_manager.html#working-with-dbc-files">15. Working with DBC Files</a></li>
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<li class="toctree-l1"><a class="reference internal" href="dbc_manager.html#dbc-file-ordering">16. DBC File Ordering</a></li>
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<li class="toctree-l1"><a class="reference internal" href="dbc_editor.html">17. DBC Message Editor</a></li>
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<li class="toctree-l1"><a class="reference internal" href="dbc_editor.html#working-with-nodes">18. Working with Nodes</a></li>
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<li class="toctree-l1"><a class="reference internal" href="dbc_editor.html#working-with-messages">19. Working with Messages</a></li>
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<li class="toctree-l1"><a class="reference internal" href="signaleditor.html">20. DBC Signal Editor</a></li>
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<li class="toctree-l1"><a class="reference internal" href="signaleditor.html#defining-and-editing-signals">21. Defining and Editing Signals</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphwindow.html">22. Graphing Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphwindow.html#creating-a-new-graph">23. Creating a new Graph</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphwindow.html#selecting-a-graph">24. Selecting a Graph</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphwindow.html#editing-a-graph">25. Editing a Graph</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphwindow.html#deleting-graphs">26. Deleting Graphs</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphwindow.html#moving-around">27. Moving Around</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphwindow.html#loading-and-saving-graphs">28. Loading and Saving Graphs</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphwindow.html#real-time-graphing">29. Real Time Graphing</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphwindow.html#hidden-tricks">30. Hidden Tricks</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphsetup.html">31. Graph Setup</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphsetup.html#setting-up-a-graph">32. Setting up a Graph</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphsetup.html#graphing-a-dbc-signal">33. Graphing a DBC Signal</a></li>
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<li class="toctree-l1"><a class="reference internal" href="graphsetup.html#manual-signal-graphing-or-editing">34. Manual Signal Graphing (Or Editing)</a></li>
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<li class="toctree-l1"><a class="reference internal" href="flowview.html">35. Flow View Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="flowview.html#the-purpose-of-flow-view">36. The Purpose of Flow View</a></li>
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<li class="toctree-l1"><a class="reference internal" href="flowview.html#selecting-an-id-to-flow">37. Selecting an ID to Flow</a></li>
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<li class="toctree-l1"><a class="reference internal" href="flowview.html#viewing-the-flow">38. Viewing the Flow</a></li>
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<li class="toctree-l1"><a class="reference internal" href="flowview.html#controlling-the-flow">39. Controlling the Flow</a></li>
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<li class="toctree-l1"><a class="reference internal" href="flowview.html#additional-control-options">40. Additional control options</a></li>
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<li class="toctree-l1"><a class="reference internal" href="flowview.html#reference-values">41. Reference Values</a></li>
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<li class="toctree-l1"><a class="reference internal" href="flowview.html#seeking-to-specific-values">42. Seeking to Specific Values</a></li>
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<li class="toctree-l1"><a class="reference internal" href="bisector.html">43. Bisector Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="bisector.html#using-the-bisector-window">44. Using the Bisector Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="sniffer.html">45. Sniffer Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="sniffer.html#using-the-sniffer-window">46. Using the Sniffer Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="sniffer.html#notching-and-unnotching">47. Notching and Unnotching</a></li>
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<li class="toctree-l1"><a class="reference internal" href="sniffer.html#advanced-options">48. Advanced Options</a></li>
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<li class="toctree-l1"><a class="reference internal" href="sniffer.html#never-expire-ids">49. Never Expire IDs</a></li>
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<li class="toctree-l1"><a class="reference internal" href="sniffer.html#mute-notched-bits">50. Mute notched bits</a></li>
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<li class="toctree-l1"><a class="reference internal" href="sniffer.html#fade-inactive-bytes">51. Fade inactive bytes</a></li>
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<li class="toctree-l1"><a class="reference internal" href="sniffer.html#view-bits">52. View Bits</a></li>
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<li class="toctree-l1"><a class="reference internal" href="framedetails.html">53. Frame Details Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="framedetails.html#the-purpose-of-frame-details-window">54. The Purpose of Frame Details Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="filecomparison.html">55. File Comparison Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="filecomparison.html#the-purpose-of-the-file-comparator">56. The Purpose of the File Comparator</a></li>
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<li class="toctree-l1"><a class="reference internal" href="filecomparison.html#the-layout-of-the-differences-list">57. The layout of the differences list</a></li>
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<li class="toctree-l1"><a class="reference internal" href="fuzzingwindow.html">58. Fuzzing Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="fuzzingwindow.html#the-purpose-of-fuzzing">59. The Purpose of Fuzzing</a></li>
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<li class="toctree-l1"><a class="reference internal" href="fuzzingwindow.html#fuzzing-is-dangerous">60. Fuzzing is Dangerous</a></li>
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<li class="toctree-l1"><a class="reference internal" href="fuzzingwindow.html#controlling-the-fuzzy-beast">61. Controlling the Fuzzy Beast</a></li>
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<li class="toctree-l1"><a class="reference internal" href="fuzzingwindow.html#pulling-the-trigger">62. Pulling the Trigger</a></li>
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<li class="toctree-l1"><a class="reference internal" href="isotp_decoder.html">63. ISO-TP Decoder</a></li>
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<li class="toctree-l1"><a class="reference internal" href="isotp_decoder.html#using-the-iso-tp-decoder">64. Using the ISO-TP Decoder</a></li>
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<li class="toctree-l1"><a class="reference internal" href="rangestate.html">65. Range State Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="rangestate.html#using-the-range-state-window">66. Using the Range State Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="uds_scanner.html">67. UDS Scan Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="uds_scanner.html#purpose-of-the-uds-scan-window">68. Purpose of the UDS Scan Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="uds_scanner.html#using-the-uds-scan-window">69. Using the UDS Scan Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="playbackwindow.html">70. Playback Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="playbackwindow.html#preparing-frames-for-playback">71. Preparing Frames for Playback</a></li>
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<li class="toctree-l1"><a class="reference internal" href="playbackwindow.html#playing-back-frames">72. Playing Back Frames</a></li>
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<li class="toctree-l1"><a class="reference internal" href="playbackwindow.html#playback-status">73. Playback Status</a></li>
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<li class="toctree-l1"><a class="reference internal" href="customsender.html">74. Custom Sender Window</a></li>
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<li class="toctree-l1"><a class="reference internal" href="customsender.html#general-overview">75. General Overview</a></li>
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<li class="toctree-l1"><a class="reference internal" href="customsender.html#layout-of-the-view">76. Layout of the View</a></li>
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<li class="toctree-l1"><a class="reference internal" href="customsender.html#writing-trigger-rules">77. Writing Trigger Rules</a></li>
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<li class="toctree-l1"><a class="reference internal" href="customsender.html#writing-modifications">78. Writing Modifications</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html">79. Scripting Interface</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html#purpose-of-the-scripting-interface">80. Purpose of the Scripting Interface</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html#managing-scripts">81. Managing Scripts</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html#getting-script-status">82. Getting Script Status</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html#writing-scripts">83. Writing Scripts</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html#callback-functions">84. Callback Functions</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html#the-host-object">85. The host Object</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html#the-can-object">86. The can Object</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html#the-isotp-object">87. The isotp Object</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html#the-uds-object">88. The uds Object</a></li>
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<li class="toctree-l1"><a class="reference internal" href="scriptingwindow.html#a-full-example-script">89. A full example script</a></li>
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</ul>
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<div class="relations">
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<h3>Related Topics</h3>
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<ul>
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<li><a href="index.html">Documentation overview</a><ul>
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<li>Previous: <a href="mainscreen.html" title="previous chapter"><span class="section-number">1. </span>Main / Start Up Screen</a></li>
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<li>Next: <a href="preferences.html" title="next chapter"><span class="section-number">12. </span>Preference Window</a></li>
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</ul></li>
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