Method, device and chip for reading boot loader based on system on chip (SoC)

A boot loader and chip technology, applied in the direction of input/output to record carrier, preventing unauthorized use of memory, etc., can solve the problem of memory security reduction and achieve the effect of improving security and saving pins

Active Publication Date: 2013-02-13
BEIJING HUADA INFOSEC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a SoC-based boot loader reading method, device and chip to solv

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  • Method, device and chip for reading boot loader based on system on chip (SoC)
  • Method, device and chip for reading boot loader based on system on chip (SoC)
  • Method, device and chip for reading boot loader based on system on chip (SoC)

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Embodiment Construction

[0051] The following embodiments of the present invention provide a SoC-based boot loader reading method, device and chip, and select and read the memory of the boot loader through the control bits stored on the non-volatile memory of the SoC, thereby improving the security performance of the memory.

[0052] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0053] seefigure 1 , is a flow chart of an embodiment of the bootloader reading method based on the system-on-chip SoC of the present invention:

[0054] Step 101: After the SoC is powered on, obtain the control bits stored in th...

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Abstract

The embodiment of the invention discloses a method, a device and a chip for reading a boot loader based on a system on chip (SoC). A nonvolatile memory and a read-only memory (ROM) are arranged on the SoC, and the method comprises the following steps of: after the SoC is electrified, acquiring a control bit saved on the nonvolatile memory; and reading the boot loader from a memory indicated by the acquired control bit. The memory for reading the boot loader is indicated by the control bit saved on the nonvolatile memory of the SoC, so that a pin on the SoC is saved; and moreover, because the control bit saved on the nonvolatile memory is difficult to change, the boot loader on the memory is difficult to read by maliciously changing the control bit correspondingly; and therefore, the safety of the memory is improved.

Description

technical field [0001] The invention relates to the technical field of chip design, in particular to a boot loader reading method, device and chip based on a System on Chip (SoC, System on Chip). Background technique [0002] System on Chip (SoC, System on Chip) refers to an electronic device that integrates all or part of the necessary electronic circuits on a single chip. Usually, the SoC can integrate a central processing unit (CPU, Central Processing Unit) and various memories. For example, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), programmable memory (FLASH), electrically erasable programmable memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), Non-volatile random access memory (NVRAM, Non-Volatile Random Access Memory), etc., and the device where the SoC is located may also be provided with a memory. When the SoC is powered on, it needs to read the bootloader program from the memory. Since the SoC cor...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F12/14
Inventor 于立波滕虓宇马文波
Owner BEIJING HUADA INFOSEC TECH
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