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A system and method for programming flash memory

A flash memory and data writing technology, applied in the field of flash memory programming, can solve the problems of reduced development efficiency, troublesome process, inability to perform bootstrapping, etc., to achieve the effect of simplifying the programming process and having strong versatility

Active Publication Date: 2016-12-07
BYZORO NETWORK LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the FLASH socket connected to the BOOT FLASH needs to be soldered on the board. However, if the BOOTFLASH chip is inserted and removed from the socket multiple times or the board vibrates and falls during transportation, the socket contact will be unreliable and the main control The processor cannot read the data in the BOOT FLASH, and cannot start bootstrapping; further, to perform programming through the FLASH burner, the board needs to be powered off first, and then the BOOT FLASH is unplugged from the board to perform programming. Finally, insert the BOOT FLASH into the board, and then power on and restart the board. The process is quite troublesome and greatly reduces the development efficiency.

Method used

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  • A system and method for programming flash memory
  • A system and method for programming flash memory
  • A system and method for programming flash memory

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Embodiment Construction

[0027] The basic idea of ​​the present invention is: the software download module sends the complex programmable logic device (CPLD) sintering file and BOOT FLASH programming data to the CPLD module through the PC interface module, and the CPLD module runs the CPLD sintering file, writes the BOOT FLASH programming data Enter BOOT FLASH. Wherein, the CPLD sintering file is used to make the CPLD module run, and transmit the BOOT FLASH interface signal according to the timing sequence of the BOOT FLASH interface.

[0028] The present invention will be described in detail below through specific embodiments and accompanying drawings.

[0029] A system for programming FLASH, such as image 3 As shown, the system includes: a software download module 301, a PC interface module 302, and a CPLD module 303; wherein, the software download module 301 is located on a PC, and the CPLD module 303 and the PC interface module 302 are located on a single board.

[0030] The software download m...

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Abstract

The invention discloses a system for programming FLASH. The system includes: a software download module, which is connected with a PC interface module through a JTAG interface and a FLASH programming interface, and is used for sending CPLD sintering files and BOOT FLASH programming data to the PC interface module ;The PC interface module is connected to the CPLD module through the JTAG interface and the FLASH programming interface, and is used to provide a connection channel between the software download module and the CPLD module; Enter BOOT FLASH. The invention also discloses a method for programming FLASH, which has strong versatility, simplifies the programming process and is stable in use.

Description

technical field [0001] The invention relates to the field of embedded systems, in particular to a system and method for programming flash memory (FLASH) in the embedded system. Background technique [0002] In an embedded system, all processors on a single board need to be started in a certain way, which can be simply divided into two types: bootstrap startup and slave startup. In an embedded system, the main control processor generally needs to be bootstrapped to start, and the non-main control processor adopts a slave start mode. The bootstrap startup of the main control processor means that after power-on reset, the startup code is automatically read and run from the boot flash memory (BOOT FLASH), and the startup is completed; the slave startup of the non-master control processor refers to the startup of the main control processor. After completion, the startup code of the non-master processor is downloaded to the non-master processor, and the non-master processor start...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C16/10
CPCG11C16/10
Inventor 刘克华
Owner BYZORO NETWORK LTD
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