SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 328

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

Figure 21-2. Xmodem Transfer Example
21.4.3
328
328
SAM3X/A
SAM3X/A
USB Device Port
The device uses the USB communication device class (CDC) drivers to take advantage of the
installed PC RS-232 software to talk over the USB. The CDC class is implemented in all
releases of Windows
www.usb.org, describes a way to implement devices such as ISDN modems and virtual COM
ports.
The Vendor ID (VID) is Atmel’s vendor ID 0x03EB. The product ID (PID) is 0x6124. These refer-
ences are used by the host operating system to mount the correct driver. On Windows systems,
the INF files contain the correspondence between vendor ID and product ID.
For More details about VID/PID for End Product/Systems, please refer to the Vendor ID form
available from the USB Implementers Forum:
http://www.usb.org/developers/vendor/VID_Only_Form_withCCAuth_102407b.pdf
"Unauthorized use of assigned or unassigned USB Vendor ID Numbers and associated Product
ID Numbers is strictly prohibited."
Atmel provides an INF example to see the device as a new serial port and also provides another
custom driver used by the SAM-BA application: atm6124.sys. Refer to the document “USB Basic
Application”,
literature number
Host
®
SOH 01 FE Data[128] CRC CRC
SOH 02 FD Data[128] CRC CRC
SOH 03 FC Data[100] CRC CRC
, from Windows 98SE to Windows XP. The CDC document, available at
6123, for more details.
ACK
ACK
ACK
EOT
ACK
C
Device
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12