Alinx AX7035 User manual

ARTIX-7 FPGA

Development Board

AX7035

User Manual

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Version Record

Version

Date

Release By

Description

Rev 1.0

2019-04-26

Rachel Zhou

First Release

The English version was translated by Shanghai Tianhui Trading

Company. They has not been officially Review by ALINX and are for reference

only. If there are any errors, please send email to rachel.zhou@aithtech.com

for correction.

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Customer Service Information

Wechat/Skype: 15026866269

Technical Email:supp[email protected]om

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Table of Contents

Version Record .............................................................................................2

Part 1: FPGA Development Board Introduction .......................................... 5

Part 2: Structure Diagram ............................................................................8

Part 3: Power Supply ................................................................................... 9

Part 4: FPGA Chip ..................................................................................... 10

Part 5: 50M active crystal oscillator ........................................................... 11

Part 6:DDR3 DRAM ...................................................................................12

Part 7: QSPI Flash .....................................................................................15

Part 8: Gigabit Ethernet Interface ..............................................................17

Part 9: HDMI1 Output interface ................................................................. 19

Part 10: HDMI1 input interface (also used as an output) ..........................22

Part 11: USB 2.0 Communication Interface .............................................. 25

Part 12: SD Card Slot ................................................................................ 26

Part 13: USB to Serial Port ........................................................................28

Part 14: EEPROM 24LC04 ........................................................................29

Part 15: Digital Tube .................................................................................. 30

Part 16: Temperature Sensor .................................................................... 33

Part 17: Expansion Header ....................................................................... 34

Part 18: FPC Expansion Ports ...................................................................37

Part 19: JTAG Interface ............................................................................. 39

Part 20: User Keys .....................................................................................40

Part 21: LED Light ......................................................................................42

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The AX7035 FPGA development board, it is the ARTIX-7 FPGA

development platform.

The ARTIX-7 FPGA development platform uses XILINX's ARTIX-7 chip,

and theAX7035 FPGA development board are designed with a rich peripheral

interface. For example, one HDMI input interface, one HDMI output interface,

one Gigabit Ethernet interface, one USB2.0 interface, Uart interface,

downloader interface and two 40-pin expansion ports, and so on.It meets

user's requirements for high-speed data transmission, video processing and

industrial control. It is a "Versatile" ARTIX-7 FPGA development platform. It

provides the possibility for pre-verification and post-application of high-speed

video transmission, data communication, image processing and data

processing. This product is very suitable for students, engineers and other

groups engaged in FPGA development.

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Part 1: FPGA Development Board Introduction

The AX7035 FPGA development board uses Xilinx's ARTIX-7 series of

FPGA chipsXC7A35T-2FGG484I, 484-pin FBGA package. The FPGA chip is

connected with a 256M byte DDR3 memory chip to achieve high-speed data

reading and writing between FPGA and DDR3. The data bit width is 16 bits, the

DDR read/write clock frequency reaches 400Mhz, and the bandwidth of the

whole system is up to 12.8Gb/s. (800M*16bit), which satisfies the data buffer

requirement during data processing. A 128Mbit QSPI FLASH is used as an

FPGA configuration chip to store FPGA configuration files and some user data.

The AX7035 FPGA development board has expanded a wide range of

peripheral interfaces, including one HDMI output interface, one HDMI input

interface, one Gigabit Ethernet interface, one USB2.0 interface, one UART

serial interface, one SD card interface, two 40-pin Expansion port, keys, LEDs,

EEPROM and sensor circuits.

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Figure 1-1: TheSchematic Diagram of the AX7035

Through this diagram, you can see the interfaces and functions that the

AX7035FPGA Development Board contains:

Xilinx ARTIX-7 Series FPGA Chip XC7A35T-2FGG484I

A large-capacity 2Gbit (256MB) high-speed DDR3 SDRAM can be used

as a buffer for FPGA chip data

A 50Mhz active crystal onboard provides a stable clock source for the

FPGA system

1-channelGigabit Ethernet InterfaceRJ-45 interface

The Gigabit Ethernet interface chip uses Micrel's KSZ9031RNX

Ethernet PHY chip to provide network communication services to users.

KSZ9031RNX chip supports 10/100/1000 Mbps network transmission

rate; full duplex and adaptive

1-channel HDMI image video output interface

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Supports up to 1080P@60Hz output and supports data output in

different formats

1-channel HDMI image video input interface

Supports up to 720P@60Hz input and supports data input in different

formats

1-channel high speed USB2.0 interface

Using FT232H single-channel USB chip of FTDI, it can be used for

USB2.0 high-speed communication between development board and

PC, with a maximum speed of 480Mb/s.

1-channel USB Uart interface

1-channel Uart to USB interface for communication with the computer

for user debugging. The serial port chip adopts the USB-UAR chip of

Silicon LabsCP2102GM, and the USB interface adopts the MINI USB

interface.

Micro SD slot

1-channel Micro SDslot, supports SD mode and SPI mode.

A 6-digit digital tube that dynamically displays 6 digits.

Temperature and humidity sensor

Onboard a temperature and humidity sensor chip LM75 for detecting

the temperature and humidity of the environment around the board

2-channel40-pin expansion port

Reserve 2 40-pin 2.54mm pitch expansion ports, which can be

connected to various ALINX modules (binocular camera, TFT LCD

screen, high-speed AD module, etc.). The expansion port contains 1

channel 5V power supply, 2 channel 3.3V power supply, 3 way ground,

34 IOs port.

1-channel FPC expansion port

A 15-pin FPC expansion port is reserved for connecting the user's MIPI

camera module.

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JTAG Interface

A 10-pin0.1 spacing standard JTAG ports for FPGA program download

and debugging.

Key

1 reset key, 4 user keys

LED Light

6LEDs, 1 power indicator, 1 DONE configuration indicator, 2 serial

transmit and receive indicators, 4 user LEDs.

Part 2: Structure Diagram

The size of the development board is a compact 130mm x 90mm, and the

PCB is designed with an 8-layer board. There are 4 screw positioning holes

around the FPGA board for fixing the development board. The hole diameter of

the positioning hole is 3.5mm (diameter)

Figure 2-1: Structure Diagram

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Part 3: Power Supply

The power supply voltage of the AX7035 FPGA development board is

DC5V, and Figure 3-1 is the power supply schematic:

Figure 3-1: Power Supply Schematic

The development board is powered by +5V and converted to +3.3V, +1.5V,

+1.8V, +1.0V four-way power supply through four DC/DC power supply chip

TLV62130RGT. The output current can be up to 3A per channel. VCCIO is

generated by one LDOSPX3819M5-3-3. VCCIO mainly supplies power to

BANK16 of FPGA. Users can change the IO of BANK16 to different voltage

standards by replacing their LDO chip. 1.5V generates the VTT and VREF

voltages required by DDR3 via TI's TPS51200.In addition, 1.5V generates 1.2V

to power the network interface chip through an LDO chip TPS74701. The

functions of each power distribution are shown in the following table:

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Power Supply

Function

+1.0V

FPGACore VoltageVCCINT, VCCBRAM

+1.8V

FPGA auxiliary voltageVCCAUX, VCCBATT,ADC power supply VCCADC

+3.3V

VCCIO ofFPGA, Ethernet, Serial port, HDMI, Sensor, FLASH, EEPROM,

and SD Card

+1.5V

DDR3, Bank34 of FPGA

VREF,VTT

DDR3

VCCIO

FPGA Bank16

Because the power supply of Artix-7 FPGA has the power-on sequence

requirement, in the circuit design, we have designed according to the power

requirements of the chip, and the power-on is 1.0V->1.8V->1.5

V->3.3V->VCCIO.

Part 4: FPGA Chip

As mentioned above, the FPGA model we use is XC7A35T-2FGG484I,

which belongs to Xilinx's Artix-7 series. The speed grade is 2, and the

temperature grade is industry grade. This model is a FGG484 package with

484 pins. Xilinx ARTIX-7 FPGA chip naming rules as below

Figure 4-1: The Specific Chip Model Definition of ARTIX-7 Series

Figure 4-2: FPGA chip on board

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