Console
Table of Contents
General Description
CHARON-AXP offers two-port serial console on all supported AXP models.
Example for OPA0 console ("COM1" port):
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When using the TTA0 console ("COM2" port):
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Refer to Mapping Serial line controllers to system resources for details of mapping.
General parameters
CHARON-AXP console lines COM1 and COM2 have the following parameters:
All the values in the following tables are case insensitive.
alias
Parameter | alias | |
|---|---|---|
Type | Identifier | |
Value | This parameter is used to set an useful name for COM1 or COM2 ports. Usually it is "OPA0" for COM1 and "TTA0" for COM2 Example:
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communication
Parameter | communication |
|---|---|
Type | Text string |
Value |
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baud
Parameter | baud | |
|---|---|---|
Type | Numeric | |
Value | Forces the baud rate of the corresponding TTY port to a specified value.The variety of supported values depends on the underlying physical communication resource (TTY port). The most widely used values are: 300, 1200, 9600, 19200, 38400. Example:
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break_on
Parameter | break_on | |
|---|---|---|
Type | Text string | |
Value | Specifies what byte sequences received over the physical serial line will trigger a HALT command. This parameter works only for the console line. Specify the following values: "Ctrl-P" , "Break" or "none" ("none" disables triggering a HALT condition). If your guest operating system is OpenVMS in addition to "none" setting you have to set a specific console parameter "controlp" to "off" in the following way: The second line is to preserve the ROM settings. Example:
The default value is "Break". This parameter can be specified only for COM1 (OPA0) console |