Hi, I need to monitor and log the status of input pin RxD serial port RS232. I need only status logical 1 and logical 0 in time. Im searching for utility or script to log this info. Thanks for answers. Michal
You can't see the status of the receive data pin directly.
If you want to use the serial port as a digital input, use the input handshaking pins, not the data pin.
-- Peter Bennett VE7CEI email: peterbb4 (at) interchange.ubc.ca GPS and NMEA info and programs: http://vancouver-webpages.com/peter/index.html Newsgroup new user info: http://vancouver-webpages.com/nnq
chart recoder ?
I don't think you can, easily, with the typical 8250 descendant found in PCs. Does it have to be RxD?
I can use the handshaking pin. Do you know a easy way to monitor the handshaking pin. I need to see a diagram or count up the logical 1 between logical 0. Im not a good programmer. I need a script or utility to redesign. Thanks for your time.
Unless the port is also being used for data reception, Peter's answer is the method normally used.
I would strongly recommend that you have a look at any of the many free newsreaders, and news servers. These are both often easier than google to use, faster, and also post properly. Google posts (on many newsreaders) end up at the beginning of threads, with no indication of who you are replying to, and make it hard for you to include context to show this.
Anyway, first you're going to have to say what OS you're running under, if any.
It might be an idea to post on what you're doing, this will frequently come up with easier answers.
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.