Unlock instant, AI-driven research and patent intelligence for your innovation.

Chip flashing method and system

A chip and main control chip technology, applied in the field of vehicles, can solve the problems affecting the mechanical structure and tightness of the vehicle ECU, inconvenient for mass production operation of products, adverse effects of mechanical structure design, etc., to achieve convenient and efficient flashing, avoid Risk of CAN network load, avoiding the effect of mechanical structure design

Inactive Publication Date: 2017-11-21
GUANGZHOU AUTOMOBILE GROUP CO LTD
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this flashing method of the slave chip will affect the mechanical structure and sealing of the vehicle ECU
Because the debug interface is used to flash the program and data of the slave chip, the existence of the debug interface will have an adverse effect on the design of the mechanical structure, thereby affecting the sealing of the product. At the same time, this method is not convenient for the mass production operation of the product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Chip flashing method and system
  • Chip flashing method and system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0018] figure 1 It is a flow chart of the steps of the method for flashing a chip provided by the first embodiment of the present invention. The method is applicable to a system for flashing a chip, and the method for flashing a chip in the embodiment of the present invention can safely, conveniently and efficiently flash a slave chip, please refer to figure 1 The method for flashing a chip in this embodiment may include the following steps 100-109.

[0019] Step 100, the controller sends flash data including a flash request message to the main control chip.

[0020] Wherein, the controller may be a control device such as a host computer, and the main control chip is a core component of a vehicle electronic control unit (ECU). In addition to the flashing request message, the flashing data may also include some data required to implement corresponding functions of the chip to be flashed, such as data for sharing the function of the main control chip or realizing the function ...

no. 2 example

[0041] figure 2 It is a main structural block diagram of a system for flashing a chip provided by the second embodiment of the present invention. Please refer to figure 2 , The system for flashing the chip includes: a controller 201 and a main control chip 203 .

[0042] Specifically, the controller 201 can be connected to the main control chip 203 through the CAN bus 200, and is used to send the flash data including the flash request message to the main control chip 203;

[0043] The main control chip 203 can be connected to multiple slave chips 205 through the SPI bus 207, which is used to receive the flash data sent by the controller 201, and obtain the flash mode according to the flash request message; if the flash mode is the slave chip flash mode, the master chip 203 sends a control command to the slave chip 205 to be flashed to control the slave chip 205 to enter the flash state; the master chip 203 writes the flash data to the slave chip 205 to be flashed.

[0044...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Embodiments of the invention disclose a chip flashing method and system. The method comprises the steps that a controller sends flashing data comprising a flashing request message to a main control chip; the main control chip receives the flashing data sent by the controller and obtains a flashing mode according to the flashing request message; if the flashing mode is a slave chip flashing mode, the main control chip sends a control command to a to-be-flashed slave chip to control the to-be-flashed slave chip to enter a flashing state; and the main control chip flashes to-be-flashed data to the to-be-flashed slave chip. According to the chip flashing method and system, the slave chip can be flashed securely, conveniently and efficiently.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a method and system for flashing a chip. Background technique [0002] With the rapid development of automotive electronics technology, more and more vehicle-mounted ECUs have begun to replace traditional mechanical parts and are used in vehicle control systems, which have an increasing impact on the overall safety of vehicles; The software and hardware design of the chip is constantly improving in terms of integration and complexity, and the risk of failure of the vehicle ECU is also gradually increasing. The main manifestation is that there are more and more large-scale vehicle recalls in recent years. Therefore, how to better balance the contradiction between the functionality and reliability of the vehicle ECU has become one of the focal issues in the field of automotive electronic functional safety. [0003] Aiming at the contradiction between the increasingly complex func...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
CPCG06F8/65
Inventor 宫成黄少堂马逸行陈彩霞
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD