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Boot starting method and starting device of digital signal processor

A digital signal and processor technology, applied in the field of embedded software and hardware systems, can solve the problems of inflexible use and difficult to achieve real-time processing, and achieve the effect of saving capacity space, realizing real-time processing, and improving signal processing speed

Active Publication Date: 2019-08-23
58TH RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These bootloading methods involve peripheral interfaces and peripheral chips. Users need to strictly abide by the relevant design requirements to successfully bootload the corresponding programs. For complex applications, it is not flexible to use.
When dealing with applications with a large amount of data, it is difficult to achieve the effect of real-time processing

Method used

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  • Boot starting method and starting device of digital signal processor
  • Boot starting method and starting device of digital signal processor
  • Boot starting method and starting device of digital signal processor

Examples

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Embodiment Construction

[0024] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0025] Such as figure 1 As shown, the starting device of a boot program according to the present invention includes: a digital signal processor with paging storage function, an address decoder and multiple external external memories, and the address line of the digital signal processor is divided into two parts, A part of the address line is directly connected to the address line of the external memory for reading and writing data; the other part of the address line is connected to the address decoder, which is respectively connected to the external memory, and the address decoder performs decoding processing to select the external memory .

[0026] The digi...

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Abstract

The invention relates to a boot starting method of a digital signal processor and a starting apparatus thereof. In the boot starting method of a digital signal processor, a boot program is stored in an application program storage page, a start page is shared with the application program storage page in which the boot program is stored, and address space of the start page and of the application program storage page in which the boot program is stored is mapped on a same external memory by using an address decoder. The boot starting method comprises the following steps: setting MP / MC to 1, OVLY to 1, and DROM to 0; powering on or resetting the digital signal processor; executing a start page program according to an instruction of an external memory connected with the digital signal processor; and jumping, according to a page sharing mechanism, to the application program storage page in which the boot program is stored to execute the boot program. Memory capacity space is effectively saved, a signal processing speed is improved, and a real-time processing effect is realized.

Description

technical field [0001] The invention belongs to the field of embedded software and hardware systems, and in particular relates to a boot starting method of a digital signal processor and a boot program starting device. Background technique [0002] Boot loader is the first piece of code executed by the embedded system after it is powered on. After it completes the initialization of the CPU and related hardware, it loads the solidified embedded application into the memory, and then jumps to the memory space where the application is located. The entry address to start the application to run. [0003] For embedded systems, the boot loader is implemented based on a specific hardware platform. Therefore, it is almost impossible to establish a general boot loader for all embedded systems, and different processor architectures have different boot loaders. Boot loader not only depends on the architecture of the CPU, but also depends on the configuration of the embedded system boar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/445
Inventor 张梅娟石乔林俞光耀张铆包小钰
Owner 58TH RES INST OF CETC
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