CN214704619U - Universal debugging clamp circuit board - Google Patents

Abstract

A universal debugging clamp circuit board is electrically connected with a debugging board comprising an MCU and used for switching an interface in development and debugging of the debugging board comprising the MCU. The circuit board is divided into a plurality of square blocks, each block is an independent functional circuit, and the functional circuits of the blocks comprise a GPIO interface circuit, a UART interface circuit, an IIC interface circuit, an SPI interface circuit, a USB interface circuit, a CAN interface circuit, a variable resistance network circuit, a memory circuit and a power supply circuit.

Description

Universal debugging clamp circuit board

Technical Field

The utility model belongs to the technical field of electronic circuit, in particular to general debugging anchor clamps circuit board.

Background

When embedded equipment is developed, different MCU platforms can be frequently replaced according to needs, and at the moment, a debugging board is usually required to be manufactured so as to master the use method of the MCU. The debugging board comprises an MCU, a power supply conversion circuit and various peripheral circuits, and the manufacturing of the whole debugging board needs to consume a small amount of expenditure and period. As shown in fig. 1. If the development board provided by the MCU manufacturer is directly purchased, the cost is high, and under the normal condition, the peripheral circuit provided by the development board is simpler and cannot meet all the requirements of development.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an one of, a general debugging anchor clamps circuit board, this circuit board is connected with the debugging board electricity including MCU, and is used for right interface switching in the development and debugging of the debugging board including MCU.

The circuit board is divided into a plurality of square blocks, each block is an independent functional circuit, and the functional circuits of the blocks comprise a GPIO interface circuit, a UART interface circuit, an IIC interface circuit, an SPI interface circuit, a USB interface circuit, a CAN interface circuit, a variable resistance network circuit, a memory circuit and a power supply circuit.

The utility model discloses to prior art's defect, provide a general debugging anchor clamps of a section, including power conversion and various peripheral circuit on the anchor clamps circuit board, because the function is cut apart clearly, adaptable all kinds of MCU's development and debugging have become a general debugging anchor clamps interface board, have effectively practiced thrift the manpower and materials cost of new product development.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:

fig. 1 is a schematic diagram of a conventional debug circuit.

Fig. 2 is a schematic diagram of a circuit principle of a debugging fixture according to one embodiment of the present invention.

Fig. 3 is a schematic diagram of a circuit board layout of a debugging fixture according to one embodiment of the present invention.

Detailed Description

In accordance with one or more embodiments, fig. 1 and 2. A universal debugging clamp circuit board is electrically connected with a debugging board comprising an MCU and used for switching an interface in development and debugging of the debugging board comprising the MCU.

In fig. 2, the circuit board is divided into a plurality of square blocks, each block is an independent functional circuit, and the functional circuits of the blocks include a GPIO interface circuit, a UART interface circuit, an IIC interface circuit, an SPI interface circuit, a USB interface circuit, a CAN interface circuit, a variable resistance network circuit, a memory circuit, and a power supply circuit. Wherein,

the active devices, the passive devices and the connectors of the block functional circuits are positioned on the front surface of the circuit board and positioned in the respective circuit board blocks, and the block functional circuits are connected with each other only through leads. The power circuit is located in the central area of the circuit board, and other block functional circuits surround the power circuit. And when the circuit board is electrically connected with the debugging board, the block functional circuit is correspondingly connected with the respective MCU interface.

As shown in fig. 1, the GPIO interface circuit includes a key and an indicator light; the UART interface circuit comprises a serial port communication chip; the IIC interface circuit comprises an EEPROM chip and a keyboard chip; the SPI interface circuit comprises a FLASH chip and an SPI network port chip; the USB interface circuit comprises a USB interface chip; the CAN interface circuit comprises a CAN level conversion interface; the variable resistance network circuit is used for connecting an ADO interface of the debugging circuit board; the memory circuit comprises an SRAM, an SD card and an LCD. The serial port communication chip comprises an RS232 interface chip and an RS485 interface chip.

The utility model discloses a general debugging anchor clamps circuit board can correspond different MCU debugging boards, connects all kinds of peripheral hardware and interface through connector or the mode of flying the line connection. The development personnel can debug the MCU on the debugging board, and can also cooperate with the general debugging fixture to carry out the development of earlier stage.

It is worth noting that while the foregoing has described the spirit and principles of the present invention with reference to several specific embodiments, it is to be understood that the present invention is not limited to the disclosed embodiments, nor is the division of aspects, which is for convenience only as the features in these aspects cannot be combined. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (3)

1. A universal debugging clamp circuit board is characterized in that the circuit board is electrically connected with a debugging board comprising an MCU and is used for switching an interface in development and debugging of the debugging board comprising the MCU,

the circuit board is divided into a plurality of square blocks, each block is an independent functional circuit, and the functional circuits of the blocks comprise a GPIO interface circuit, a UART interface circuit, an IIC interface circuit, an SPI interface circuit, a USB interface circuit, a CAN interface circuit, a variable resistance network circuit, a memory circuit and a power circuit, wherein,

the active devices, passive devices and connectors of the block functional circuits are positioned on the front surface of the circuit board and positioned in the respective circuit board blocks, the block functional circuits are connected only through leads,

the power circuit is located in the central area of the circuit board, other block functional circuits surround the power circuit,

and when the circuit board is electrically connected with the debugging board, the block functional circuit is correspondingly connected with the respective MCU interface.

2. The universal commissioning fixture circuit board of claim 1,

the GPIO interface circuit comprises a key and an indicator light;

the UART interface circuit comprises a serial port communication chip;

the IIC interface circuit comprises an EEPROM chip and a keyboard chip;

the SPI interface circuit comprises a FLASH chip and an SPI network port chip;

the USB interface circuit comprises a USB interface chip;

the CAN interface circuit comprises a CAN level conversion interface;

the variable resistance network circuit is used for connecting an ADO interface of the debugging circuit board;

the memory circuit comprises an SRAM, an SD card and an LCD.

3. The universal debugging fixture circuit board of claim 2, wherein the serial port communication chips comprise RS232 and RS485 interface chips.

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