Kontron AM4100, Руководство пользователя

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NetBootLoader AM4100
Page 5 - 4 ID 36126, Rev. 2.0
P R E L I M I N A R Y
Once the boot wait time expires, an image must be copied to the DDR2-SDRAM, either via a
script or from the contents of the NetBootLoader Flash, otherwise the boot operation is aborted.
In the event the boot operation is aborted, control is passed to the command interpreter.
5.2.1 SER0 Serial Interface
The SER0 serial port is used to provide direct operator interfacing to the NetBootLoader. As
soon as the AM4100 has been initialized this port is activated and the operator may input com-
mands. During the boot wait time the operator may terminate the boot operation and take con-
trol of the NetBootLoader. Once the boot wait time is exceeded the command interpreter is
normally deactivated and the boot process is continued. If the NetBootLoader does not copy
an image to the DDR2-SDRAM, the boot process is discontinued and system control returns
to the operator.
The SER0 serial interface may either be directly connected to a terminal device or may inter-
face with a terminal emulator.
5.2.2 SER1 Serial Interface
The SER1 serial port is used to provide the NetBootLoader with the ability to access Motorola
S-Records for programming an image to NBL Flash memory. No command interpreter is avail-
able for this interface.
5.2.3 Ethernet Port Interfaces
The Ethernet ports provide the capability of remote interfacing with the NetBootLoader. As the
NetBootLoader only supports one of the four Ethernet ports, the port to be used must be con-
figured prior to operation. Once configured it is available for remote operations as well as for
accessing of TFTP/FTP file servers.
5.3 NetBootLoader Functions
In addition to initializing the AM4100 for operation and the loading and starting of applications,
the NetBootLoader provides the following operator monitor and control functions:
• NetBootLoader control
• system status monitoring
• network accessing
• NBL Flash memory reading and programming operations
• Motorola S-Record acquisition
These functions are described in detail in the following chapters.
N o t e . . .
The command title (CMD TITLE) is expressed in capital letters and is not the
same as the syntax of the command. The command syntax is always written us-
ing small letters