Книга: Microsoft Windows Embedded CE 6.0 Exam Preparation Kit

Command Processor Shell

Command Processor Shell

The command processor shell provides console input and output with a limited set of commands. This shell is available for both display-enabled devices and headless devices without keyboard and display screen. For display-enabled devices, include the Console Window component (Cmd.exe) so that the command processor shell can handle input and output through a command-prompt window. Headless devices, on the other hand, typically use a serial port for input and output.

Table 3-5 lists registry settings that you must configure on the target device to use a serial port in conjunction with the command processor shell.

Table 3-5 Console registry parameters

Location HKEY_LOCAL_MACHINEDriversConsole
Registry Entry OutputTo COMSpeed
Type REG_DWORD REG_DWORD
Default Value None 19600
Description Defines which serial port the command processor shell uses for input and output. Specifies the data transfer rate of the serial port in bits per second (bps).
? Setting this value to -1 will redirect input and output to a debug port.
? Setting this value to zero specifies no redirection.
? Setting this value to a number greater than zero and less than 10 will redirect input and output to a serial port.

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