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Chapter 2 New for OEM7 – Firmware
2.2.34 USBCONFIG
Configure the USB ports
Platform: OEM729, OEM719, OEM7700
Use this command to configure the USB controller operating mode and speed.
OEM7 receivers include USB 2.0 device interfaces capable of either Full-Speed (12Mb/s) or
High-Speed (480Mb/s) transfer rates. On the OEM719 and OEM729 receivers, the default trans-
fer rate for the USB Device port is Full-Speed (12Mb/s). The USB device interface on the
OEM7700 receiver is set for a default of High-Speed (480Mb/s). The device interface will not
auto-negotiate the speed with the Host computer.
The setting configured using this command can be saved using the SAVEUSBCONFIG command
(see page 65). The USB configuration is not affected by a standard FRESET command, so the
settings will not be lost when issuing FRESET to clear other information from the receiver's
NVM. To clear the saved USB configuration from NVM, issue the FRESET USBCONFIG com-
mand.
After a USB connection has already been established between the receiver and the Host,
changing the speed from Full-Speed to High-Speed may not always be successful. For-
cing a re-enumeration of the USB Device after the speed change has been done will
ensure the connection is completed successfully.
Message ID: 1959
Abbreviated ASCII Syntax:
USBCONFIG [USBController] [USBMode] USBSpeed
ASCII Example:
USBCONFIG CONTROLLER1 DEVICE FULL
Do not send a USBCONFIG command when there is activity on the USB port.
Field
Field Type
USBCONFIG
1
header
OEM6 to OEM7 Integration Guide v1
Binary
ASCII Value
Value
-
-
Binary
Description
Format
Command header.
See Messages for
-
more information.
Binary
Binary
Bytes
Offset
H
0
74
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