CN105550005B - Method for debugging and upgrading through USB port - Google Patents
Method for debugging and upgrading through USB port Download PDFInfo
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- CN105550005B CN105550005B CN201610054204.2A CN201610054204A CN105550005B CN 105550005 B CN105550005 B CN 105550005B CN 201610054204 A CN201610054204 A CN 201610054204A CN 105550005 B CN105550005 B CN 105550005B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Debugging And Monitoring (AREA)
- Stored Programmes (AREA)
Abstract
The invention discloses a method for debugging and upgrading through a USB port, which comprises the following steps: a user starts the debugging and upgrading platform, starts the USB-Host functional unit in the debugging and upgrading platform and runs an ISP debugging and upgrading program; connecting the target equipment with a debugging and upgrading platform through a USB connecting Device, running a boot debugging and upgrading program after the target equipment is powered on, starting a USB-Device communication function, and not starting internal pull-up of the target equipment; a USB-Host functional unit in the debugging and upgrading platform monitors the connection action of target equipment through a trigger signal provided by a pull-up resistor in a USB connection device, and informs an ISP debugging and upgrading program, and the ISP debugging and upgrading program sends a debugging and upgrading command packet to the target equipment; and the target equipment enters a debugging and upgrading mode after receiving the debugging and upgrading command packet. When the user needs to debug and upgrade, the method can conveniently finish the debugging and upgrading operation of the target equipment only provided with the USB interface of the embedded system.
Description
The technical field is as follows:
the invention relates to a method for debugging and upgrading through a USB port.
Background art:
with the rapid development of electronic information technology, embedded systems are applied everywhere, and updating and upgrading of the embedded systems are not frequent but essential. The boot debug upgrade program (BootLoader) in the embedded system is mainly used for realizing the functions of remote upgrade, update and the like of the embedded system, the boot debug upgrade program (BootLoader) is firstly operated after the embedded system is powered on, and whether the debugging upgrade is carried out or not is judged according to some specific triggering conditions. Generally, the triggering method of the embedded system debugging upgrade includes: firstly, through an additional physical detection mode, such as key pressing, cold jumping and the like; secondly, monitoring the self-defined data packet in a limited time through a certain interface (a USB interface, a serial port and the like).
For the first mode, a manufacturer may need to leave an embedded system debugging and upgrading interface for receiving a physical trigger signal on an external package of an embedded system product, but this may affect the overall beauty of the embedded system product and cause hardware cost waste; if the interface is not reserved on the external package of the embedded system product, the product needs to be disassembled to perform debugging and upgrading, which is very inconvenient for users to use.
For the second mode, if the target device with the USB interface is connected to the computer, the BootLoader (BootLoader) running first in the target device may simulate a USB device, that is, a USB device is popped up on the computer, and the USB device is not desirable for the user who does not need to perform the debugging and upgrading. For example: when the target Device is a USB disk, a user-defined USB Device or an Unknown USB Device (Unknown Device) is popped up from the computer, and then a USB disk Device appears, which affects the use of the user who does not need to perform debugging and upgrading.
In summary, it is an urgent need to provide a method for debugging and upgrading through a USB port.
The invention content is as follows:
the present invention aims to provide a method for debugging and upgrading through a USB port in order to solve the above problems. When a user needs to debug and upgrade, the USB connecting device in the method is used for connection, so that the debugging and upgrading operation can be conveniently completed on target equipment only provided with an embedded system USB interface, the integral attractiveness of the target equipment is kept, and the hardware cost is saved. Under most conditions, users do not need to debug and upgrade, and the USB device is connected by using a common USB wire, so that the phenomenon of two times of USB devices does not exist.
The invention is realized by the following technical scheme:
a method for debugging and upgrading through a USB port, the method comprising: a user starts the debugging and upgrading platform, starts the USB-Host functional unit in the debugging and upgrading platform, runs an ISP debugging and upgrading program, and the debugging and upgrading platform is in an automatic monitoring mode; connecting target equipment with a debugging and upgrading platform through a USB connecting Device, wherein the USB connecting Device comprises a pull-up resistor for providing a connecting action signal for the debugging and upgrading platform, running a boot debugging and upgrading program (BootLoader) after the target equipment is powered on, starting a USB-Device communication function, and not starting the internal pull-up of the target equipment; a USB-Host functional unit in the debugging and upgrading platform monitors the connection action of target equipment through a trigger signal provided by a pull-up resistor in a USB connection device, and informs an ISP debugging and upgrading program, and the ISP debugging and upgrading program sends a debugging and upgrading command packet to the target equipment; and the target equipment enters a debugging and upgrading mode after receiving the debugging and upgrading command packet.
According to the method for debugging and upgrading through the USB port, the USB connecting device adopts a USB connecting line or a USB connector, and the USB connecting line or the USB connector comprises a pull-up resistor for providing a connecting action signal for a debugging and upgrading platform.
The method for debugging and upgrading through the USB port comprises the steps that the debugging and upgrading platform comprises a USB-Host communication functional unit and an ISP debugging and upgrading program;
the USB-Host functional unit is used for monitoring the connection action of the USB equipment and communicating with the target equipment;
the ISP debugging and upgrading program is used for communicating with a boot debugging and upgrading program (BootLoader) of the target equipment and sending a debugging and upgrading command packet.
The target Device comprises a USB-Device functional unit, a boot debugging upgrade program (BootLoader) and a user program (Application code);
the USB-Device functional unit is used for communicating with the debugging and upgrading platform;
the boot debugging upgrade program (BootLoader) is used for guiding target equipment to perform debugging upgrade and is a first program which runs after being electrified;
the user program (Application code) is an object program to be run by the user. And when the boot debugging upgrading program is quitted, the user program is operated. If the user does not perform debugging and upgrading, the common USB line connection is adopted, and the target device does not receive the debugging and upgrading command packet within a certain time, the target device can quit the guided debugging and upgrading program overtime, and the user program is operated.
Has the advantages that:
according to the method for debugging and upgrading through the USB port, when a user needs to debug and upgrade, the USB connecting device in the method is used for connection, so that the debugging and upgrading operation can be conveniently completed on the target equipment only provided with the USB interface of the embedded system, the integral attractiveness of the target equipment is kept, and the hardware cost is saved. Under most conditions, users do not need to debug and upgrade, and the USB device is connected by using a common USB wire, so that the phenomenon of two times of USB devices does not exist.
The specific implementation mode is as follows:
the following describes in detail specific embodiments of the present invention. Advantages and features of the present invention will become apparent from the following description, taken in conjunction with the appended claims.
In this embodiment, a method for performing debugging and upgrading through a USB port includes the following steps:
and the user starts the debugging and upgrading platform, starts the USB-Host functional unit in the debugging and upgrading platform, runs the ISP debugging and upgrading program, and at the moment, the debugging and upgrading platform is in an automatic monitoring mode. The debugging and upgrading platform can be on a computer or a mobile phone; connecting target equipment with a debugging and upgrading platform through an external USB connecting Device, wherein the USB connecting Device comprises a pull-up resistor for providing a connecting action signal for the debugging and upgrading platform, running a boot debugging and upgrading program (boot loader) after the target equipment is powered on, starting a USB-Device communication function, and not starting the internal pull-up of the target equipment; a USB-Host functional unit in the debugging and upgrading platform monitors the connection action of target equipment through a trigger signal provided by a pull-up resistor in a USB connection device, and informs an ISP debugging and upgrading program, and the ISP debugging and upgrading program sends a debugging and upgrading command packet to the target equipment; and the target equipment enters a debugging and upgrading mode after receiving the debugging and upgrading command packet.
In this embodiment, a method for performing debugging and upgrading through a USB port is provided, where the USB connection device uses a USB connection line or a USB connector, and the USB connection line or the USB connector includes a pull-up resistor for providing a connection action signal to a debugging and upgrading platform. According to the USB protocol, the upstream port of the USB device end is provided with a pull-up resistor of 1.5kohm, and if the pull-up resistor is connected to D +, the upstream port is a high-speed or full-speed device, and if the pull-up resistor is connected to D +, the upstream port is a low-speed device. The USB-Host port determines the connection and removal of the device and the type of the device by detecting the levels of two data lines in the physical line.
In the embodiment, the debugging and upgrading platform comprises a USB-Host functional unit and an ISP debugging and upgrading program; the USB-Host functional unit is used for monitoring the connection action of the USB equipment, when no equipment is connected, the D + and D-lines of the USB-Host port are both in low level, and when the USB-Device equipment is connected, the D + and D-have a stage of changing into a high level state after a transition time. If the device is a high-speed or full-speed device, the D + is pulled high, and the D-is unchanged; the opposite is true for low speed devices. When the USB-Host detects the signal, the device connection and the type of the device can be judged, and then the device is communicated with the target device; when the device is removed, either D + or D-has a phase that goes to a low state over a transition time. The ISP debugging and upgrading program is used for communicating with a boot debugging and upgrading program (BootLoader) of the target equipment and sending a debugging and upgrading command packet.
In the method for performing debugging and upgrading through a USB port in this embodiment, the target Device includes a USB-Device functional unit, a BootLoader (BootLoader), and a user program (Application code); the USB-Device functional unit is used for communicating with the debugging and upgrading platform; the boot debug upgrade program (BootLoader) is used for booting the target device to perform debug upgrade, and is the first program which runs after being electrified. The boot debug upgrade program (BootLoader) is a first section of code executed by the embedded system after power-on, whether to enter a debug upgrade mode is judged according to specific conditions, and if the boot debug upgrade program enters the debug upgrade mode, data transmitted from the USB interface is received for updating a user program (Application code); and if the debugging upgrading mode is not entered, exiting the boot debugging upgrading program to run the user program (Application code). The user program is a target program to be run by a user. And when the boot debugging upgrading program is quitted, the user program is operated. If the user does not perform debugging and upgrading, the common USB line connection is adopted, and the target device does not receive the debugging and upgrading command packet within a certain time, the target device can quit the guided debugging and upgrading program overtime, and the user program is operated.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (1)
1. A method for debugging and upgrading through a USB port is characterized by comprising the following steps: a user starts the debugging and upgrading platform, starts the USB-Host functional unit in the debugging and upgrading platform, runs an ISP debugging and upgrading program, and the debugging and upgrading platform is in an automatic monitoring mode; connecting target equipment with a debugging and upgrading platform through a USB connecting Device, wherein the USB connecting Device comprises a pull-up resistor for providing a connecting action signal for the debugging and upgrading platform, a first program which runs after the target equipment is powered on is a boot debugging and upgrading program, a USB-Device communication function is started, and the internal pull-up of the target equipment is not started; a USB-Host functional unit in the debugging and upgrading platform monitors the connection action of target equipment through a trigger signal provided by a pull-up resistor in a USB connection device, and informs an ISP debugging and upgrading program, and the ISP debugging and upgrading program sends a debugging and upgrading command packet to the target equipment; the target equipment enters a debugging and upgrading mode after receiving the debugging and upgrading command packet; if the user does not carry out debugging and upgrading, the common USB line connection is adopted, and the target equipment does not receive a debugging and upgrading command packet within a certain time, the target equipment exits the guided debugging and upgrading program overtime and runs the user program;
the USB connecting device adopts a USB connecting line or a USB connector, and the USB connecting line or the USB connector comprises a pull-up resistor for providing a connecting action signal for the debugging and upgrading platform;
the debugging and upgrading platform comprises a USB-Host functional unit and an ISP debugging and upgrading program;
the USB-Host functional unit is used for monitoring the connection action of the USB equipment and communicating with the target equipment;
the ISP debugging and upgrading program is used for communicating with a boot upgrading program of the target equipment and sending a debugging and upgrading command packet;
the target equipment comprises a USB-Device functional unit, a boot debugging upgrading program and a user program, and the target equipment comprises a USB interface;
the USB-Device functional unit is used for communicating with the debugging and upgrading platform;
the boot debugging and upgrading program is used for booting target equipment to carry out debugging and upgrading and is the first program which runs after being electrified;
the user program is a target program to be run by a user, and the user program can be run after the user exits the boot debugging upgrading program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054204.2A CN105550005B (en) | 2016-01-27 | 2016-01-27 | Method for debugging and upgrading through USB port |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610054204.2A CN105550005B (en) | 2016-01-27 | 2016-01-27 | Method for debugging and upgrading through USB port |
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| Publication Number | Publication Date |
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| CN105550005A CN105550005A (en) | 2016-05-04 |
| CN105550005B true CN105550005B (en) | 2022-05-03 |
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| CN201610054204.2A Active CN105550005B (en) | 2016-01-27 | 2016-01-27 | Method for debugging and upgrading through USB port |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885650A (en) * | 2016-09-30 | 2018-04-06 | 联芯科技有限公司 | A kind of program debugging method and system |
| CN106406967A (en) * | 2016-11-15 | 2017-02-15 | 恒鸿达信息技术有限公司 | STM32-based USB online upgrade method and system |
| CN106843037B (en) * | 2016-12-30 | 2019-04-12 | 硅谷数模半导体（北京）有限公司 | The upgrade method and system of single-chip microcontroller |
| CN111240965A (en) * | 2020-01-03 | 2020-06-05 | 珠海亿智电子科技有限公司 | ISP real-time debugging method and system |
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| US20070006035A1 (en) * | 2003-08-28 | 2007-01-04 | Kazou Usui | Microcomputer and method for developing system program |
| CN101963910A (en) * | 2010-09-21 | 2011-02-02 | 深圳市元征软件开发有限公司 | General USB (Universal Serial Bus) based equipment firmware updating method |
| CN102169442A (en) * | 2011-03-24 | 2011-08-31 | 杭州华三通信技术有限公司 | Method, equipment, device and system for performing system boot by using USB (universal serial bus) device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103309711A (en) * | 2013-06-18 | 2013-09-18 | 天津七一二通信广播有限公司 | Bootstrap loader circuit based on USB interface |
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- 2016-01-27 CN CN201610054204.2A patent/CN105550005B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070006035A1 (en) * | 2003-08-28 | 2007-01-04 | Kazou Usui | Microcomputer and method for developing system program |
| CN101963910A (en) * | 2010-09-21 | 2011-02-02 | 深圳市元征软件开发有限公司 | General USB (Universal Serial Bus) based equipment firmware updating method |
| CN102169442A (en) * | 2011-03-24 | 2011-08-31 | 杭州华三通信技术有限公司 | Method, equipment, device and system for performing system boot by using USB (universal serial bus) device |
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| CN105550005A (en) | 2016-05-04 |
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Address after: No. 18 Ningshuang Road, Yuhuatai District, Nanjing City, Jiangsu Province, 210012 Applicant after: Nanjing qinheng Microelectronics Co.,Ltd. Address before: No. 18 Ningshuang Road, Yuhuatai District, Nanjing City, Jiangsu Province, 210012 Applicant before: NANJING YI HUO TECHNOLOGY Co.,Ltd. |
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