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Anti-reverse-connection burning device

An anti-reverse connection and burner technology, applied in software deployment, instruments, alarms, etc., can solve problems such as CPLD chip burner damage, signal connection errors, etc., to achieve reliable design principles, simple structure, and avoid damage Effect

Inactive Publication Date: 2021-03-12
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, when programming CPLD, the power on the board will be turned off first, and then the programming signal programmed by the CPLD cable is connected to the correct JTAG programming signal on the board, but generally, unless the signal is connected carefully, Confirm and check the correct position of the cable of the programming fixture, otherwise there is no other way to avoid signal connection errors
Among the general programming signals, the required JTAG programming signals include TCK, TMS, TDI, TDO, TMS, TRST, 3.3V, and GND. Generally speaking, TCK, TMS, TDI, TDO, TMS, and TRST There will be no problem if these six signals are connected incorrectly, but if the 3.3V or GND is connected incorrectly, there may be damage to the CPLD chip itself or the programmer

Method used

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Effect test

Embodiment 1

[0023] This embodiment provides an anti-reverse connection programming device, including: JTAG pin header connector and buzzer, such as figure 1 As shown, the 3.3V on the programmed JTAG pin header is connected to the GND ground signal on the buzzer circuit, and the GND ground signal on the JTAG pin header is connected to the 3.3V_buzzer signal on the buzzer circuit superior. The 3.3V_buzzer signal on the buzzer is independent from the 3.3V signal on the board, so when the board is powered on and the CPLD programmer is not connected, the 3.3V_buzzer signal is floating.

[0024] When the programmer is connected normally, the 3.3V on the programmer is connected to the 3.3V signal of the JTAG pin connector, and the GND on the programmer is connected to the GND signal of the JTAG pin connector. At this time, the 3.3V_buzzer signal on the buzzer circuit is connected to the GND signal of the CPLD programmer, the GND signal on the buzzer circuit is connected to the 3.3V signal of th...

Embodiment 2

[0027] This embodiment provides an anti-reverse connection programming device, including a JTAG pin header connector and an LED light. The 3.3V on the programmed JTAG pin header connector is connected to the GND grounding signal of the LED light, and the JTAG pin header is connected to The GND ground signal on the device is connected to the 3.3V positive signal of the LED light. The positive pole of the LED light is independent from the 3.3V signal on the board, so when the board is powered on and the CPLD programmer is not connected, the positive pole of the LED light is in a floating state.

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Abstract

The invention provides an anti-reverse-connection burning device. The device comprises a pin header connector and an alarm; the positive electrode of the alarm is connected with a grounding pin of thepin header connector; the positive electrode of the alarm is in a floating connection state when not connected with a burner; and the negative electrode of the alarm is connected with a 3.3 V pin ofthe pin header connector. When a complex programmable logic device is burnt, if a circuit is reversely connected, an alarm signal is sent out, and the complex programmable logic device is prevented from being damaged due to reverse connection of the circuit.

Description

technical field [0001] The invention belongs to the technical field of programming of complex programmable logic devices, and in particular relates to an anti-reverse connection programming device. Background technique [0002] When generally developing CPLD-related products, it is often necessary to use a cable-type CPLD programmer to burn CPLD programming files. The cable programmer connects the JTAG signal to the required programming pins of the CPLD, loads the synthesized and compiled programming files into the programming software, and then performs the work of programming the CPLD. However, in the process of programming, it is often necessary to pay attention to connecting the programming signal of the cable type CPLD to the correct pin. If the connected programming pin is incorrect, the CPLD programming fixture or the CPLD itself may be damaged. . [0003] Generally, when programming CPLD, the power on the board will be turned off first, and then connect the program...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/18G06F8/61
CPCG06F8/61G08B21/18
Inventor 陈冠嘉
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD