https://hades.mech.northwestern.edu//index.php?action=history&feed=atom&title=USB_communication_between_PICs 2026-04-08T08:21:17Z Revision history for this page on the wiki MediaWiki 1.35.9 https://hades.mech.northwestern.edu//index.php?title=USB_communication_between_PICs&diff=13331&oldid=prev 2009-06-07T13:56:31Z

<p></p> <p><b>New page</b></p><div>The USB protocol identifies two sides of a communication: the host and the device. The host controls the communication and does more work than the device. Generally the host is a computer, and the PIC is the device. However, if you configure a PIC as a host you can do certain new things:<br /> <br /> * Plug in a flash drive USB device to use as storage.<br /> * Configure another PIC as a USB device and use USB to communicate between them.<br /> <br /> The [[Microchip USB Framework]] includes an embedded host stack that provides code for running a PIC as a USB host. The [[PIC 18f4550]] is &#039;&#039;&#039;not&#039;&#039;&#039; able to run as an embedded host: to run the embedded host stack requires a 16-bit or 32-bit PIC. The 4550 is a mere 8-bit chip.</div>

Gregory McGlynn