# How to work with USB ports in MatLab? **URL:** \ **Category:** Uncategorized\ **Created:** [June 8, 2001, 9:19am UTC](https://psychtoolbox.discourse.group/t/how-to-work-with-usb-ports-in-matlab/1286 "2001-06-08T09:19:05Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\ **Post date:** [June 8, 2001, 9:19am UTC](https://psychtoolbox.discourse.group/t/how-to-work-with-usb-ports-in-matlab/1286/1 "2001-06-08T09:19:05Z")
I used to use SERIAL.M in Psychophysics Toolbox to receive and send signal through Printer and Modem serial ports. But my new Mac G4 does not have these ports, instead it has 6 USB ports. Is it possible to use SERIAL.M to control USB ports, or is there any other ToolBox in MatLab to control USB ports? BTW, I can not connect the forum site. So please send email to me [xrli@...](mailto:xrli@...) Thank you in advance. Xiangrui Li ---
**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\ **Post date:** [June 8, 2001, 2:36pm UTC](https://psychtoolbox.discourse.group/t/how-to-work-with-usb-ports-in-matlab/1286/2 "2001-06-08T14:36:45Z")
Check out: [http://www.geethree.com/?src=macintouch](http://www.geethree.com/?src=macintouch) for one way to add serial ports to your G4 You can also try a usb-serial converter. Gr. Frans > \>I used to use SERIAL.M in Psychophysics Toolbox to receive and > \>send signal through Printer and Modem serial ports. But my new Mac G4 does > \>not have these ports, instead it has 6 USB ports. Is it possible to use > \>SERIAL.M to control USB ports, or is there any other ToolBox in MatLab to > \>control USB ports? > \> > \>BTW, I can not connect the forum site. So please send email to me > \> > \>[xrli@...](mailto:xrli@...) > \> > \>Thank you in advance. > \> > \>Xiangrui Li > \> > \> > \>To Post a message, send it to: [psychtoolbox@...](mailto:psychtoolbox@...) > \> > \>To Unsubscribe, send a blank message to: [psychtoolbox-unsubscribe@...](mailto:psychtoolbox-unsubscribe@...) > \> > \>psychtoolbox web site: [http://color.psych.ucsb.edu/psychtoolbox/](http://color.psych.ucsb.edu/psychtoolbox/) > \> > \>Your use of Yahoo! Groups is subject to [http://docs.yahoo.com/info/terms/](http://docs.yahoo.com/info/terms/) -- Frans W. Cornelissen Laboratory of Experimental Ophthalmology School for Behavioral and Cognitive Neurosciences (BCN) University of Groningen P.O. Box 30.001 Hanzeplein 1 9700 RB Groningen, The Netherlands e-mail: [f.w.cornelissen@...](mailto:f.w.cornelissen@...) Telephone: + 31 50 3614173/2510 Telefax: + 31 50 3611709 Private: + 31 50 5264050 Web-page: [http://www.med.rug.nl/leo/](http://www.med.rug.nl/leo/)