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=== Resetting a Serial Port's RTS and DTR Signals when Windows Starts === == Resetting a Serial Port's RTS and DTR Signals when Windows Starts ==
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{{{MODE COM3; dtr=off rts=off}}} {{{MODE COM3: dtr=off rts=off}}}
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[[DXLabDiscussionGroup|Post a question or suggestion on the DXLab Discussion Group]]
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[:TransceiverControl:Getting Started with Transceiver Control] [[TransceiverControl|Getting Started with Transceiver Control]]
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[:GettingStarted:Getting Started with DXLab] [[Multimode_Setup|Setting up CW, Phone, PSK, and RTTY Operation]]

[[WindowsTricks| Windows Tricks]]

[[GettingStarted|Getting Started with DXLab]]

Resetting a Serial Port's RTS and DTR Signals when Windows Starts

de Joe W4TV

You can reset a serial port's RTS and DTR signals on Windows startup by creating a Windows Batch File containing the appropriate command, and then creating a Window Shortcut to this Batch File in the Windows Startup Folder. To reset COM3's RTS and DTR signals, for example, use Windows Notepad to create a Batch File named RESETCOM3.bat that contains

MODE COM3: dtr=off rts=off

On Windows XP, the pathname of the Windows Startup Folder is

C:\Documents and Settings\%username%\Start Menu\Programs\Startup

where %username% is the username you used to log in to Windows.

On Windows 7, the pathname of the Windows Startup Folder is

C:\users\%username%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup

To create the required Shortcut, run two instances of Windows Explorer. In the first instance, navigate to the folder in which you created RESETCOM3.bat; in the second instance, navigate to the Windows Startup Folder. Then depress-and-hold the ALT key while dragging RESETCOM3.bat from the first instance of Windows Explorer to the second; when you release the left mouse button, a shortcut to RESETCOM3.bat will appear in the Windows Startup Folder.


Post a question or suggestion on the DXLab Discussion Group

Getting Started with Transceiver Control

Setting up CW, Phone, PSK, and RTTY Operation

Windows Tricks

Getting Started with DXLab

ResetCOMDTRRTS (last edited 2018-07-04 19:41:50 by AA6YQ)