> On Wed, Dec 17, 2008 at 4:34 AM, Bob Ammerman > wrote: >> Does anyone know of a freeware and/or open source program for analyzing >> serial communications? >> >> What I am looking for is a program that uses the RX line on two separate >> serial ports and a special 'tap' cable to monitor both the RX and TX >> lines >> of a standard serial port. I want to be able to view the communication >> in >> hex, preferably with byte-by-byte timestamps. Extra points if the >> software >> can save an interaction to disk and reload it to view later. >> >> Thanks, >> >> -- Bob Ammerman >> RAm Systems > > > Check out RealTerm: > http://realterm.sourceforge.net/ > > It works pretty well. It has a "spy mode" but you have to pay for the > drivers to do that. > The last time I wanted to spy on a serial line I used a multi-port USB > to RS232 adapter with which I could simultaneously capture the RX and > TX lines of the "target" device. It worked well enough for me (and was > free) > > - > ML Not free, but I get a lot of use out of the TechTools DigiView. It's a USB logic analyzer that decodes async, I2C, and SPI. I use it a LOT! Harold -- FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist