SAM-III Construction Manual
See last page for document and copyright information, File: SAM-III Magnetometer Construction.doc, Page 77
Appendix: Using SysInternals PortMon
Install PortMon and run. Generally, it will automatically monitor all equipped serial ports (COM Port) but you will
need to check this. If necessary, refer to the PortMon Help for assistance setting the program up.
PortMon will display and log (unless logging is shut off) all traffic on a serial port in both directions. When PortMon
runs in logging mode for any length of time, say 2 hours or more, it will gradually use up all PC memory and you will
notice that the hard drive continuously runs as Windows constantly swaps the cache between RAM and the hard
drive. You also will notice the PC becomes sluggish and may appear to freeze (and probably has). Therefore, do not
run PortMon in logging mode for more than an hour or two.
The following pages show successful downloading of IB3_ENG.HEX and SAM3_ENG.HEX. Logs in the middle of the
downloading session have been deleted to make it easier to see the beginning and end of a session.
To troubleshoot, compare your PortMon logs to those shown.
