CN112489385A - Reverse connection prevention burning device - Google Patents
Reverse connection prevention burning device Download PDFInfo
- Publication number
- CN112489385A CN112489385A CN202011305966.8A CN202011305966A CN112489385A CN 112489385 A CN112489385 A CN 112489385A CN 202011305966 A CN202011305966 A CN 202011305966A CN 112489385 A CN112489385 A CN 112489385A
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- CN
- China
- Prior art keywords
- alarm
- pin
- signal
- header connector
- burning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000002265 prevention Effects 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
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- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention provides a reverse connection prevention burning device, which comprises: the positive electrode of the alarm is connected with the grounding pin of the pin header connector, and the positive electrode of the alarm is in a floating state when the recorder is not connected; the negative electrode of the alarm is connected with the 3.3V pin of the pin header connector. When the complex programmable logic device is burned, if the circuit is reversely connected, an alarm signal can be sent out, and the complex programmable logic device is prevented from being damaged due to the reverse connection of the circuit.
Description
Technical Field
The invention belongs to the technical field of complicated programmable logic device burning, and particularly relates to an anti-reverse-connection burning device.
Background
When a CPLD-related product is generally developed, a cable-type CPLD burner is often used to burn a CPLD burning file. The cable burner connects the JTAG signal to the burning pin position needed by the CPLD, loads the synthesized burning file into burning software, and then carries out the work of burning the CPLD. However, in the burning process, attention is usually required to connect the burning signal of the cable-type CPLD to the correct pin, and if the connected burning pins are not aligned, the burning jig of the CPLD or the CPLD itself may be damaged.
Generally, when the CPLD is burned, the power supply on the board is firstly turned off, and then the burning signal burned by the CPLD cable is connected to the correct JTAG burning signal on the board, but generally, when the signal is connected, no other method is used to avoid the signal connection error unless the correct position of the cable of the burning jig is carefully confirmed and checked. The JTAG programming signals required in the general programming signals include eight signals, namely TCK, TMS, TDI, TDO, TMS, TRST,3.3V and GND, and generally, six signals, namely TCK, TMS, TDI, TDO, TMS and TRST, are not problematic in connection, but if 3.3V or GND are connected incorrectly, the CPLD chip or the programmer may be damaged.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an anti-reverse connection burning device to solve the technical problems.
The invention provides a reverse connection prevention burning device, which comprises: the positive electrode of the alarm is connected with the grounding pin of the pin header connector, and the positive electrode of the alarm is in a floating state when the recorder is not connected; the negative electrode of the alarm is connected with the 3.3V pin of the pin header connector.
Further, the alarm is a buzzer.
Further, the alarm is an LED signal lamp.
Furthermore, the alarm is connected with an anti-creeping circuit.
Furthermore, if the pin header connector is connected with the complex programmable logic device burner, the anode of the alarm is connected with the grounding pin of the pin header connector, and the anode of the alarm is in a floating state when the burner is not connected.
Furthermore, if the pin header connector is reversely connected with the complex programmable logic device burner, the alarm is started.
Further, the positive pole of the alarm is 3.3V.
The beneficial effect of the invention is that,
when the anti-reverse connection burning device provided by the invention is used for burning a complex programmable logic device, if the circuit is reversely connected, an alarm signal can be sent out, so that the complex programmable logic device is prevented from being damaged due to reverse connection of the circuit.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
Fig. 2 is a schematic diagram of an application of the apparatus according to an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
The embodiment provides a reverse connection prevention burning device, which comprises: the JTAG pin connector and the buzzer are connected as shown in figure 1, wherein 3.3V on the burned JTAG pin connector is connected to GND grounding signals on the buzzer circuit, and the GND grounding signals on the JTAG pin connector are connected to 3.3V _ Buzzer signals on the buzzer circuit. The 3.3V _ buzzer signal on the buzzer and the 3.3V signal on the board are independently separated, so when the board is powered on and the CPLD recorder is not connected, the 3.3V _ buzzer signal is in a floating state.
When the recorder is normally connected, 3.3V on the recorder is connected with a 3.3V signal of the JTAG pin arranging connector, and GND on the recorder is connected with a GND signal of the JTAG pin arranging connector. At this time, the 3.3V _ buzzer signal on the buzzer circuit is connected with a GND signal of the CPLD burner, the GND signal on the buzzer circuit is connected with a 3.3V signal of the CPLD burner, and the buzzer circuit avoids the electric leakage of the buzzer circuit in the state by using an anti-electric leakage circuit, and the buzzer cannot make a sound because the 3.3V _ buzzer of the buzzer circuit has no voltage at this time.
When the recorder is reversely connected, as shown in fig. 2, when the board is not powered on, the JTAG signal of the CPLD recorder is connected to the upper surface of the JTAG pin bank connector, 3.3V of the upper surface of the recorder is connected to the GND signal of the JTAG pin bank connector, and GND of the upper surface of the recorder is connected to the 3.3V signal of the JTAG pin bank connector. At the moment, the 3.3V _ buzzer signal on the buzzer circuit is connected with the 3.3V signal of the CPLD burner, the GND signal on the buzzer circuit is connected with the GND signal of the CPLD burner, and the circuit on the buzzer circuit is conducted, so that the buzzer can make a sound to tell a user that the connection method of the burning is wrong at the moment, and the problem that the burner or the CPLD chip is burnt out after the board is powered on is avoided.
Example 2
The embodiment provides an anti-reverse connection burning device which comprises a JTAG pin connector and an LED lamp, wherein 3.3V on the burnt JTAG pin connector is connected to a GND grounding signal of the LED lamp, and the GND grounding signal on the JTAG pin connector is connected to a 3.3V positive electrode signal of the LED lamp. The anode of the LED lamp is independently separated from the 3.3V signal on the board, so that when the board is electrified and the CPLD burner is not connected, the anode of the LED lamp is in a floating state.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A reverse connection prevention burning device is characterized by comprising: the positive electrode of the alarm is connected with the grounding pin of the pin header connector, and the positive electrode of the alarm is in a floating state when the recorder is not connected; the negative electrode of the alarm is connected with the 3.3V pin of the pin header connector.
2. The device of claim 1, wherein the alarm is a buzzer.
3. The device of claim 1, wherein the alarm is an LED signal.
4. The device of claim 1, wherein the alarm is connected to a leakage prevention circuit.
5. The device of claim 1, wherein if the pin header connector is connected to a complex programmable logic device burner, the positive connection of the alarm is connected to the pin header connector ground pin, and the positive of the alarm is in a floating state when the burner is not connected.
6. The apparatus of claim 1, wherein if the pin header connector is connected to the plc device in the reverse direction, an alarm is activated.
7. The device of claim 1, wherein the positive pole of the alarm is 3.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011305966.8A CN112489385A (en) | 2020-11-19 | 2020-11-19 | Reverse connection prevention burning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011305966.8A CN112489385A (en) | 2020-11-19 | 2020-11-19 | Reverse connection prevention burning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112489385A true CN112489385A (en) | 2021-03-12 |
Family
ID=74932124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011305966.8A Withdrawn CN112489385A (en) | 2020-11-19 | 2020-11-19 | Reverse connection prevention burning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112489385A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113721744A (en) * | 2021-07-28 | 2021-11-30 | 苏州浪潮智能科技有限公司 | Mainboard and signal connection system thereof |
-
2020
- 2020-11-19 CN CN202011305966.8A patent/CN112489385A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113721744A (en) * | 2021-07-28 | 2021-11-30 | 苏州浪潮智能科技有限公司 | Mainboard and signal connection system thereof |
| CN113721744B (en) * | 2021-07-28 | 2023-07-21 | 苏州浪潮智能科技有限公司 | Mainboard and signal connection system thereof |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210312 |