ZYNQ-based low-speed signal test measurement control equipment

Abstract

The utility model belongs to the technical field of communication low-speed interface signal processing, and discloses a ZYNQ-based low-speed signal test measurement control device. The ZYNQ-based low-speed signal test measurement control device comprises a ZYNQ main control chip, an RS485 driver, a transmitter, a receiver, a CAN driver, an Ethernet PHY transceiver chip, a single-pole three-throw switch and a power interface. According to the utility model, the test, measurement, operation and configuration requirements of low-speed signals in a digital signal processing system are integrated and unified, the test and measurement requirements of various low-speed signals are met through special equipment, the test process is simplified, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to communication low -speed interface signal processing technical field, in particular to a kind of based on ZYNQ low-speed signal test measurement control equipment. BACKGROUND

[0002] TTL signal is a kind of digital logic level standard, noise suppression ability is strong, low power consumption, fast response, with simple, reliable and widely used characteristics, has been widely used in digital circuit and communication system.

[0003] RS485 is widely used in data acquisition and control applications, one of its main advantages is to allow multiple RS485 devices on the same bus, so that multiple nodes can be connected to each other.

[0004] In digital signal processing system, usually involves above multiple low-speed signal processing functions. Such as using board selects GPIO signal to identify signal processing module, define ID for chip in system;Through CAN bus transmission module health status information, realize module state monitoring management;Use TTL level signal to control module power on and off enable. Surround these low-speed interface signal generates a large number of test, measurement, operation, configuration needs. Such as reading CAN bus ID, test CAN bus rate;Measure whether TTL signal waveform is square wave and square wave high level is specific value;Need to realize different serial port switching by manually inputting hot key combination;Manual operation board selection code jumper pin is configured. These test measurement needs involve multiple software and hardware test tools, such as CAN analyzer and software, oscilloscope, not enough unified;Operation, configuration involves a lot of manual operation, very low efficiency in module production test. SUMMARY

[0005] The utility model discloses a kind of based on ZYNQ low-speed signal test measurement control equipment, the test, measurement, operation, configuration needs of low-speed signal involved in digital signal processing system are integrated and unified, satisfy the test measurement needs of multiple low-speed signals by special equipment, simplify test process, improve test efficiency.

[0006] To achieve the above object, the utility model provides a kind of based on ZYNQ low-speed signal test measurement control equipment, including ZYNQ master chip, RS485 driver, transmitter, receiver, CAN driver, Ethernet PHY transceiver chip, single-pole three-throw switch, power interface, DDR memory, FLASH device;

[0007] ZYNQ master chip includes controller, driver, several GPIO interfaces, several serial port switching interfaces, I2C interface, SPI interface, XADC interface, RGMII interface, CAN interface, UART interface;

[0008] The driver in the ZYNQ master chip is connected with several groups of transmitters and receivers, the GPIO interface is connected with several measured modules, the serial port switching interface is connected with several single-pole triple-throw switches, the XADC interface is connected with several single-pole triple-throw switches, the RGMII interface is connected with an Ethernet PHY transceiver chip, the CAN interface is connected with a CAN driver, and the UART interface is connected with an RS485 driver.

[0009] Further, the controller included in the ZYNQ master chip is an RS422 controller, and the driver included in the ZYNQ master chip is an RS422 driver.

[0010] Further, the transmitter is an RS422 transmitter, and the receiver is a low-power RS422 receiver or a low-power RS485 receiver.

[0011] Further, the RS422 driver is connected with two RS422 transmitters and two RS422 receivers.

[0012] Further, the serial port switching interface is connected with two single-pole triple-throw switches, and the XADC interface is connected with one single-pole triple-throw switch.

[0013] Further, the two single-pole triple-throw switches connected by the serial port switching interface are each provided with three external serial ports, and the single-pole triple-throw switch connected by the XADC interface is connected with a temperature control component and a voltage monitoring component.

[0014] Further, an RJ45 interface is further included, and the Ethernet PHY transceiver chip is connected to the RJ45 interface.

[0015] Further, an SPI interface and a connector are further included, the SPI interface is connected with the connector, and the CAN driver is connected with several CAN communication terminals and the connector.

[0016] Beneficial effects: the utility model provides a kind of based on ZYNQ low-speed signal test measurement control equipment, with following beneficial effects: (1) by providing equivalent test measurement function, it can replace the third party software and hardware tools used in traditional test measurement, such as Can test analysis equipment, oscilloscope, Xcom test tool, etc., realize the unity of test measurement equipment;Test personnel changes from needing to be familiar with multiple test measurement tools to only needing to be familiar with test measurement special equipment interface operation mode, which liberates test personnel from tedious test measurement process;(2) replace part of manual operation in traditional test measurement with software, such as board selection code jumper operation, serial port switching operation, simplify test measurement operation process, further save test time;(3) test measurement function can be called through API function interface, greatly simplify the automation complexity of test measurement work, provide the basis for complete automation of test measurement process, can bring significant improvement in efficiency and productivity for mass production, can save a lot of manpower investment;(4) test measurement special equipment can automatically compare test results according to qualified criteria, greatly reduce the risk of errors and inconsistencies by minimizing human intervention, ensure higher test measurement quality and fewer human errors. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is the system architecture diagram related to the embodiment of the utility model;

[0018] Fig. 2 is the test measurement control equipment system block diagram related to the embodiment of the utility model.

[0019] MARKED FOR EXPLANATION:

[0020] RGMII is gigabit media independent interface;UART is asynchronous transceiver interface;GPIO is general input and output interface;SP3T is single-pole three-throw switch;RJ45 is Ethernet cable interface. DETAILED DESCRIPTION

[0021] The preferred mechanism and implemented method of the utility model are further described below in combination with the drawings and specific embodiments.

[0022] As Figs. 1-2 shown, the embodiment of the utility model discloses a kind of based on ZYNQ low-speed signal test measurement control equipment technical scheme. Fig. 1 is the system architecture diagram related to the embodiment of the utility model; Fig. 2 is the test measurement control equipment system block diagram related to the embodiment of the utility model. EMBODIMENT

[0023] A kind of low-speed signal test measurement control equipment based on ZYNQ, including ZYNQ master chip, RS485 driver, RS422 transmitter, low-power RS422 receiver, CAN driver, Ethernet PHY transceiver chip, single-pole three-throw switch, power interface, DDR memory, FLASH device, RJ45 interface, SPI interface and connector;

[0024] ZYNQ master chip includes RS422 controller, RS422 driver, several GPIO interfaces, several serial port switching interfaces, I2C bus, SPI interface, XADC interface, RGMII interface, CAN interface, UART interface;

[0025] RS422 driver is connected 2 RS422 transmitter and 2 RS422 receiver;

[0026] GPIO interface connects 3 measured modules;

[0027] Serial port switching interface connects 2 single-pole three-throw switches, and the two single-pole three-throw switches connected by serial port switching interface are each provided with three external serial ports;

[0028] XADC interface connects 1 single-pole three-throw switch, and the single-pole three-throw switch connected by XADC interface is connected temperature control component and voltage monitoring component;

[0029] RGMII interface connects Ethernet PHY transceiver chip, CAN interface connects CAN driver, and UART interface connects RS485 driver;

[0030] Serial port switching interface connects 2 single-pole three-throw switches, and XADC interface connects 1 single-pole three-throw switch;

[0031] The two single-pole three-throw switches connected by serial port switching interface are each provided with three external serial ports, and the single-pole three-throw switch connected by XADC interface is connected temperature control component and voltage monitoring component;

[0032] Ethernet PHY transceiver chip is connected on RJ45 interface;

[0033] SPI interface connects connector, and CAN driver connects several CAN communication terminals and connector.

[0034] The utility model discloses a kind of low-speed signal test measurement control equipment based on ZYNQ, the test, measurement, operation, configuration requirement involved low-speed signal in digital signal processing system are integrated and unified, satisfy the test measurement needs of multiple low-speed signals by special equipment, simplify test process, improve test efficiency.

[0035] Finally, it should be noted that the above is only the preferred embodiment of the present application / new type, and is not intended to limit the present application / new type, although the embodiments are described in detail, for those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced, but any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application / new type should be included in the protection scope of the present application / new type.

Claims

1. A ZYNQ-based low-speed signal test measurement control device, characterized in that: The ZYNQ master chip, an RS485 driver, a transmitter, a receiver, a CAN driver, an Ethernet PHY transceiver chip, a single-pole three-throw switch, a power interface, a DDR memory, and a FLASH device are included. The ZYNQ master chip includes a controller, a driver, a plurality of GPIO interfaces, a plurality of serial port switching interfaces, an I2C interface, an SPI interface, an XADC interface, an RGMII interface, a CAN interface, and a UART interface. The driver in the ZYNQ master chip is connected to a plurality of transmitters and receivers, the GPIO interfaces are connected to a plurality of measured modules, the serial port switching interfaces are connected to a plurality of single-pole three-throw switches, the XADC interface is connected to a plurality of single-pole three-throw switches, the RGMII interface is connected to the Ethernet PHY transceiver chip, the CAN interface is connected to the CAN driver, and the UART interface is connected to the RS485 driver.

2. The ZYNQ-based low-speed signal test measurement control device according to claim 1, wherein: The controller included in the ZYNQ master chip is an RS422 controller, and the driver included in the ZYNQ master chip is an RS422 driver.

3. The ZYNQ-based low-speed signal test measurement control device of claim 2, wherein: The transmitter is an RS422 transmitter, and the receiver is a low-power RS422 receiver or a low-power RS485 receiver.

4. The ZYNQ-based low-speed signal test measurement control device of claim 3, wherein: The RS422 driver is connected to two RS422 transmitters and two RS422 receivers.

5. The ZYNQ-based low-speed signal test measurement control device according to claim 1, wherein: The serial port switching interface is connected to two single-pole three-throw switches, and the XADC interface is connected to one single-pole three-throw switch.

6. The ZYNQ-based low-speed signal test measurement control device of claim 5, wherein: The two single-pole three-throw switches connected by the serial port switching interface each have three external serial ports, and the single-pole three-throw switch connected by the XADC interface is connected to a temperature control component and a voltage monitoring component.

7. The ZYNQ-based low-speed signal test measurement control device of claim 1, wherein: An RJ45 interface is further included, and the Ethernet PHY transceiver chip is connected to the RJ45 interface.

8. The ZYNQ-based low-speed signal test measurement control device of claim 1, wherein: An SPI interface and a connector are further included, the SPI interface is connected to the connector, and the CAN driver is connected to a plurality of CAN communication terminals and the connector.

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