US 10,481,675 B2 · Dual-processor system and control method thereof

Abstract

A dual-processor system includes a power supply, a temporary memory, a non-volatile memory and two processors. The non-volatile memory stores an initialization program code, a first configuration file corresponding to a first operating system, and a second configuration file corresponding to a second operating system. Compared to the first operating system, the second operating system has a shorter interrupt latency and a shorter thread switching latency. After the power supply starts to supply power, the first processor executes the initialization program code to perform operations of initializing the temporary memory, loading the second configuration file into the temporary memory, notifying the second processor to fetch the second configuration file from the temporary buffer, loading the first configuration rile into the temporary memory and establishing the first operating system according to the first configuration file.

Claims16

Dependent claims

A dual-processor system, comprising:

a power supply;
a temporary memory;
a non-volatile memory, storing a first configuration file corresponding to a first operating system and a second configuration file corresponding to a second operating system, the second operating system having a shorter interrupt latency and a shorter thread switching latency compared to the first operating system;
a first processor;
and
a second processor;
wherein, after the power supply starts supplying power to the first processor, the first processor performs operations of:
initializing the temporary memory;
loading the second configuration file into the temporary memory;
notifying the second processor to establish the second operating system according to the second configuration file in the temporary memory;
loading the first configuration file into the temporary memory;
and
establishing the first operating system according to the first configuration file in the temporary memory;
and
before the first processor completes establishing the first operating system, the second processor has completed establishing the second operating system.

12 more elements

A control method for a dual-processor system, the dual-processor system comprising a power device, a temporary memory, a non-volatile memory, a first processor and a second processor;

the non-volatile memory storing a first configuration file corresponding to a first operating system and a second configuration file corresponding to a second operating system, the second operating system having a shorter interrupt latency and a shorter thread switching latency compared to the first operating system;
the control method comprising:
after the power supply starts supply power to the first processor:
initializing the temporary memory by the first processor;
loading the second configuration file into the temporary memory by the first processor;
notifying the second processor to establish the second operating system according to the second configuration file in the temporary memory by the first processor;
loading the first configuration file into the temporary memory by the first processor;
and
establishing the first operating system according to the first configuration file by the first processor;
wherein, before the first processor completes establishing the first operating system, the second processor has completed establishing the second operating system.

7 more elements

Dependencies are inferred from the claim text.

Dual-processor system and control method thereof

Life of this patent

Dual-processor system and control method thereof

Life of this patent

Abstract

Claims16