Alinx AX516 Manuel utilisateur

Spartan-6 FPGA

Development Board

AX516

User Manual

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Spartan-6 FPGA Development Board AX516 User Manual

Contact Email: [email protected]

Version Record

Version

Date

Release By

Description

Rev 1.0

2019-04-28

Rachel Zhou

First Release

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Spartan-6 FPGA Development Board AX516 User Manual

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Table of Contents

Part 1: FPGA Development Board Introduction.......................................... 4

Part 2: Structure Diagram........................................................................... 7

Part 3: Power.............................................................................................. 8

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

Part 4.1: JTAG Interface.................................................11

Part 4.2: FPGA Power Supply........................................12

Part 5: 50Mhz Clock ................................................................................. 14

Part 6: QSPI Flash.................................................................................... 15

Part 7: DDR3 DRAM................................................................................. 16

Part 8: EEPROM 24LC04......................................................................... 19

Part 9: Real time clock DS1302................................................................ 20

Part 10: Gigabit Ethernet Interface........................................................... 22

Part 11: USB to Serial Port....................................................................... 25

Part 12: VGA Port..................................................................................... 27

Part 13: USB 2.0....................................................................................... 29

Part 14: SD card slot ................................................................................ 32

Part 15: Expansion Header ...................................................................... 34

Part 16: LED............................................................................................. 36

Part 17: Buttons........................................................................................ 37

Part 18: Camera Module Interface ........................................................... 39

Part 19: PMOD interface (AX516 Reserved)............................................ 40

Part 20: SMA Interface ............................................................................. 42

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Spartan-6 FPGA Development Board AX516 User Manual

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The AX516 FPGA development board uses the XILINX SPARTAN6 family

chips, model XC6SLX16-2CSG324. As a core processor, FPGA has rich

hardware resources and peripheral interfaces. In the design, adhere to the

"exquisite, practical, simple" design concept, it is very suitable for software radio,

industrial control, multimedia applications, IC verification, parallel computing

and other project development, and it can also be applied to college teaching,

FPGA training, personal research learning and DIY, etc.

The Photograph of FPGA Board

Part 1: FPGA Development Board Introduction

The FPGA chipset is Xilinx Spartan-6 XC6SLX16 device in FBGA324

package, the feature summary of this FPGA device are listed below:

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Spartan-6 FPGA Development Board AX516 User Manual

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Table 1-1: The Feature Summary of FPGA Device

The main resources and features are listed (see Table 1-2):

Parameter

Value

Logic Cells

14579

DSP48 Slices （18 x 18 multiplier, an adder, and

accumulator）

Configurable Logic Blocks(CLBs)

136Kb

Block RAM Blocks

576Kb

CMTs

MAX User I/O

218

Core Power Supply

1.15V-1.25V (recommended 1.2V)

Operation Temperature

0-85℃

Table 1-2: The Main Resources and Feature of Xilinx Spartan6 XC6SLX9

The layout of the board that indicates the location of the connector and key

components, provide a quickly overview of AX516 board (see Figure 1-2)

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FPGA

XC6SLX16

128MByte

DDR3

50M

晶振 EEPROM

24LC04

实时时钟

128Mbit

FLASH

千兆以太网

芯片

USB2.0

芯片

USB转

串口

按键1按键2按键3按键4Micro

SD卡座

配置键复位键

千兆

网口

65535色

VGA接口

摄像头

接口

40针扩展口（34个IO口，1路5V，2路3.3V，3路GND

USB

接口

串口

接口

+5V电源

接口

电源

开关

JTAG口

PMOD接口

3.3V电源

1.2V电源

1.5V电源

DDR电源

SMA

时钟

4个用户LED灯

2个配置指示灯

电源

指示灯 2.5V IO

电源

Figure 2-1: The Layout of the AX516 board

Through this diagram, we can see the functions that the development

platform can achieve.

+5V power input, maximum 2A current protection

A large 128Mbyte high-speed DD3 SDRAM can be used as a buffer for

data or as a memory for Microblaze

A 128Mbit QSPI FLASH that can be used as a storage for FPGA

configuration files and user data

One-way 10/100M/1000M Ethernet RJ-45 interface for Ethernet data

exchange with computers or other network devices;

One-way high-speed USB2.0 interface, can be used for USB2.0

high-speed communication between FPGA development board and PC

One USB Uart interface for serial communication with PC or external

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devices

A camera module interface that can connect 5 million OV5640 camera

One-port VGA interface, VGA interface is 16bit, can display 65,536

colors, can display color pictures, etc

A piece of RTC real time clock with battery holder, battery model CR1220

One piece of IIC interface EEPROM 24LC04

4 red user LEDs

4 independent user buttons

On-board 50M active crystal oscillator provides stable clock source for

FPGA development board

1-Way 40-pin ALINX expansion port (0.1”inch), 34 IO ports, one 5V

power supply, two 3.3V power supplies, three GND. Two expansion

modules can be connected at the same time, such as expansion

modules such as 4.3-inch TFT module and AD/DA module.

Reserved JTAG port for FPGA debugging and program curing

One way Micro SD card holder, support SD mode and SPI mode

Reserve a 2.5V power supply, optional IO voltage 3.3V and 2.5V for

FPGA

One SMA interface for input or output of an external clock

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 3.3mm (diameter)

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Figure 2-1: Structure Diagram

Part 3: Power

The FPGA development board power supply input voltage is DC5V. The

power supply design diagram on the development board is as Figure 3-1:

5V 电源

输入

保险丝

MP1482

TPS51200

3.3V/2A

1.2V/2A

VTT

VREF

MP1482

电源开关

1.5V/2A

CN1

SW1

U15

U16

U17

U32

LT1117 2.5V/0.8A

Figure 3-1: Block Diagram of Power Design

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

+1.2V, +1.5V three-way power supply through three-way DC/DC power supply

chip MP1482. It generates +2.5V power supply through one LDO LT1117, and

VTT and VREF voltages (1.5V) required for DDR3 is generated by TPS51200 of

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

Power Supply

Function

+1.2V

FPGA Core Voltage

+3.3V

FPGA, Ethernet, Serial port, RTC, FLASH, EEPROM, USB 2.0 and SD Card

+1.5V

DDR3, Bank3 of FPGA

VREF,VTT

DDR3

+2.5V

FPGA Bank2 optional

The IO voltage of FPGA BANK2 can be selected by two 0 ohm resistors

(R158, R159) on the board. When R158 is installed and R159 is not installed,

the IO level of Bank2 is 3.3V. When R158 is not installed and R159 is installed.

the IO level of Bank2 is 2.5V

FPGA BANK voltage distribution detailed as table 3-1:

XC6SLX16-

2CSG324

Bank0

Bank2

Bank1

Bank3

BANK

Function

Voltage

Description

BANK0

VGA, USB2.0, PMOD, UART

3.3V

BANK1

SD Card, Camera, Ethernet, VGA

3.3V

BANK2

Extend IO，QSPI FLASH, LED, KEY

3.3V/2.5V

BANK3

DDR3, Reset Button

1.5V

Table 3-1: FPGA BANK voltage distribution

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When designing the PCB, we used a 6-layer PCB and reserved a separate

Power layer and GND layer, which ensures the FPGA development board has

very good stability. On the PCB we have reserved test points for each power

supply so that the user can confirm the voltage on the board.

Figure 3-2: The Test Point of Power Voltage

Part 4: FPGA Chip

As mentioned earlier, the FPGA model we use is XC6SLX16-2CSG324,

which belongs to Xilinx Spartan-6. This model is a BGA package with 324 pins.

Again, explain the definition of the FPGA pin. Many people use FPGAs that are

not BGA-packaged, such as 144-pin, 208-pin FPGA chips. Their pin definitions

are made up of numbers, such as 1 to 144, 1 to 208, etc., and when we use

BGA packages. After the chip, the pin name becomes in the form of letters +

numbers, such as E3, G3, etc., so when we look at the schematic, we see the

letters + numbers, which represent the pins of the FPGA. Having said this, let's

look at the functions of the various parts of the FPGA.

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