System based on RISC-V processor and system starting method thereof

A RISC-V, processor technology, applied in the direction of electrical digital data processing, program loading/starting, instruments, etc., to achieve the effects of easy modification, convenient development and use, and improved applicability and ease of operation

Pending Publication Date: 2019-11-01
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no complete, convenient, and highly applicable process to start embedded linux systems with different configurations based on RISC-V processors. In view of this, it is already a technology in the art to provide a solution to the above technical problems people in need of urgent attention

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  • System based on RISC-V processor and system starting method thereof
  • System based on RISC-V processor and system starting method thereof
  • System based on RISC-V processor and system starting method thereof

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Embodiment Construction

[0035] The core of this application is to provide a RISC-V processor-based system and its system startup method, so as to effectively improve the applicability and ease of operation under various system configurations, so as to make full use of the RISC-V architecture open source, fast, The advantage of low power consumption is convenient for technicians to develop and use.

[0036] In order to describe the technical solutions in the embodiments of the present application more clearly and completely, the technical solutions in the embodiments of the present application will be introduced below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this applicatio...

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Abstract

The invention discloses a system based on an RISC-V processor and a starting method thereof. The starting method comprises the steps: executing a zero-th bootstrap program in an RAM, reading a storageaddress of a first-step bootstrap program stored in a first register in a storage card after a system starting instruction is received, and moving the first-step bootstrap program to a memory; executing a first-step bootstrap program in the memory; reading a storage address of an equipment tree file program stored in a second register, a storage address of a bootstrap program stored in a third register and a storage address of an operating system kernel program stored in a fourth register in the memory card, and moving the equipment tree file program, the bootstrap program and the operating system kernel program into a memory; executing the bootstrap program in the memory, and analyzing the device tree file program so as to initialize the processor core; and executing an operating systemkernel program in the memory to realize system startup. According to the invention, the applicability and the operation convenience under various system configurations are effectively improved.

Description

technical field [0001] The present application relates to the field of embedded development technology, in particular to a RISC-V processor-based system and a system startup method thereof. Background technique [0002] With the continuous development and maturity of the instruction set, RISC-V was produced. It is a brand-new instruction with the characteristics of complete open source, simple design, low power consumption, and strong scalability. Based on this, RISC-V processors are also It has been developed rapidly and began to be applied in various scenarios, such as accelerators, Internet of Things, etc. Its small size, fast, and low power consumption make it especially suitable for modern computing devices, such as warehouse-scale cloud computers, high-end mobile phones and tiny Embedded systems, etc. However, there is currently no complete, convenient, and highly applicable process to start embedded linux systems with different configurations based on RISC-V processo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/4401G06F9/445
CPCG06F9/4406G06F9/44505
Inventor 杨琳琳
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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