Serial port

After my question on the parallel port, I must ask you something about
the serial port. Why I cannot see on my scope the data signal if I put
my scope directly to the pins. To see it, I must connect the serial
port on an other device and then, put the scope on the line.

Thanks for all yours valuable input!!!
Fred
.

Relevant Pages

  • Re: Serial port
    ... >>the serial port. ... Why I cannot see on my scope the data signal if I put ... > Connect your scope ground to SIGNAL GROUND in the serial port ... select the setup options, and 'advanced', and set 'flow control', to ...
    (sci.electronics.design)
  • Re: Serial port
    ... > After my question on the parallel port, I must ask you something about ... > the serial port. ... Why I cannot see on my scope the data signal if I put ...
    (sci.electronics.design)
  • Re: Parallel Port Interface between PIC and PC
    ... >>which would then transmit the readings to the laptop on the robot. ... >> the laptop has two ports, a USB port and a parallel port. ... > on a desktop with a real serial port before committing to the USB to ...
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  • Re: Talk to computers?
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  • Re: parallel & serial port questions
    ... For serial communication, you need to configure the port. ... rather lengthy "Parallel Port" thread in this group about a year ago. ... > What is the filename parameter for the COM1 serial port in createfile? ...
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