US 2003/0120977 A1Published application

Debugging method through serial port under system shutdown and standby conditions

OwnerChih-Chien Tanginventor

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Abstract

The invention is a debugging method through a computer serial port under system shutdown and standby conditions. The object of the invention is to implant a power-off debug program and a standby debug program into Basic Input Output system of a computer. Power management is used to supply power to the BIOS and serial port when the system is booting up. A switch is provided to turn on/off the serial port output condition of the destination system. A cable is used to connect a remote system and the destination system. Monitoring software is executed in the remote system and the remote system is used to monitor the BIOS debug conditions of the destination system. The invention allows a local system to debug under system boot-up or system standby conditions. The efficiency of the system debug process is thus increased.

Claims11

Dependent claims

A debugging method through serial port under system shutdown condition and standby condition, the debugging method is used in a remote system to debug a destination system, comprises following steps:

a programming step:
a power-off debug program and a standby debug program are compiled and burn into a BIOS,
a power supply management providing step:
a power supply management of said destination system is set to be performed when the system is shutdown and supply power to the BIOS and said destination system,
a system connecting step:
a cable is used to connect a remote serial port of the remote system and the destination serial port of said destination system,
a monitoring step:
a monitoring software is executed in the remote system, the result from the destination serial port of said destination system is read by said monitoring software, and
a debugging step:
the monitoring software is used to check if the output from the destination serial port of said destination system is normal.

7 more elements

Dependencies are inferred from the claim text.