Tektronix Scopes

Notes about TestBench Scopes.

• Serial Port Screen Printing

• Serial Port Screen Printing

Some Tektronix Scopes have a screen printing function, this can be either built-in, or as an expansion module. By using a serial cable you can dump a screen grab from the scope to your PC.

The stty command can be used to set up the PC's serial port. You need to select raw mode, otherwise the image data will be corrupted.

> stty -F /dev/ttyS0 raw 9600

The oscilloscope settings are shown below.

RS232 Menu Options	Printer Menu Options, Page 1	Printer Menu Options, Page 2

Simply cat the serial port to a file, then press the scope's print button. You will need to monitor the file size to see when it stops increasing.

> cat /dev/ttyS0 > image.bmp

An example screen grab. An eye diagram from a serial comms link