Alinx AC7021B Manuel utilisateur

ZYNQ-7000 FPGA

Development Board

AX7021B

User Manual

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Version Record

Version

Date

Release By

Description

Rev 1.0

2019-03-27

Rachel Zhou

First Release

Rev 1.1

2020-09-21

Rachel Zhou

Correct the corresponding pins of B34_L15_N/P.

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

Part 2: AC7021B Core Board Introduction .............................. 7

Part 2.1: ZYQN Chip ...................................................................9

Part 2.2 DDR3 DRAM ............................................................... 12

Part 2.3 QSPI Flash .................................................................. 14

Part 2.4: eMMC Flash ...............................................................16

Part 2.5: Clock configuration ..................................................17

Part 2.6: USB to serial port ..................................................... 19

Part 2.7: LED .............................................................................20

Part 2.8: Reset button ..............................................................22

Part 2.9: JTAGE Interface ........................................................23

Part 2.10: DIP switch configuration ....................................... 24

Part 2.11: Power ....................................................................... 24

Part 2.13: Connector pin definition ........................................27

Table 14-4: Pin Assignment of CON4 .................................... 33

Part 3: Carrier Board ................................................................33

3.1 Carrier Board Introduction ................................................34

3.2 Gigabit Ethernet interface .................................................34

3.3 USB2.0 Host interface ....................................................... 39

3.4 HDMI Output Interface .......................................................41

3.5 USB to serial port ...............................................................43

3.6 SD card slot ........................................................................ 44

3.7 JTAG Interface ................................................................... 45

3.8 LED ...................................................................................... 46

3.9 User Button ........................................................................ 47

3.10 Extension Port ..................................................................48

3.11 Power Supply ................................................................... 51

3.12 Carrier Board Structure diagram ................................... 53

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This ZYNQ7000 FPGA development platform adopts the core board + carrier

board mode, which is convenient for users to use the core board for

secondary development. The core board uses XILINX's Zynq7000 SOC chip

solution, which combines dual-core ARM Cortex-A9 and FPGA programmable

logic on a single chip using ARM+FPGA SOC technology. In addition, the

core board contains 2 pieces of 1GB high-speed DDR3 SDRAM chip, 1 piece

32GB eMMC memory chip and 1 piece 256Mb QSPI FLASH chip.

In the design of the carrier board, the user has extended a wealth of

peripheral interfaces, such as 5-port Gigabit Ethernet interfaces, 4-port

USB2.0 HOST interfaces, 1-port HDMI output interface, Uart serial port

communication interface, SD card holder, 40-pin carrier header, etc. It meets

the requirements of users for various Ethernet high-speed data exchange,

data storage, video transmission processing and industrial control. It is a

"professional" ZYNQ development platform. For high-speed Ethernet data

transmission and exchange, the pre-validation and post-application of data

processing is possible. This product is very suitable for students, engineers

and other groups engaged in ZYNQ development.

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Part 1: FPGA Development Board Introduction

Here, a brief introduction to the AX7021B ZYNQ FPGA development

platform.

The entire structure of the development board, the core board + carrier

board mode design. A high-speed inter-board connector is used between the

core board and the carrier board.

The core board is mainly composed of the minimum system of ZYNQ7020

+ 2 DDR3 + eMMC + QSPI FLASH. It undertakes the high-speed data

processing and storage function of the ZYNQ system. The data width between

the ZYNQ7020 and the two DDR3s is 32 bits, and the two DDR3 capacities up

to 1GB. The 32GB eMMC FLASH memory chip and 256Mb QSPI FLASH are

used to statically store the ZYNQ operating system, file system and user data.

Users can select different startup modes through the DIP switch on the core

board. The ZYNQ7020 uses Xilinx's Zynq7000 series of chips, model number

XC7Z020-2CLG484I. The ZYNQ7020 chip can be divided into processor

system part Processor System (PS) and programmable logic part

Programmable Logic (PL).

The carrier board expands the rich peripheral interface for the core board,

including 5 Gigabit Ethernet interfaces, 4-port USB2.0 HOST interfaces, 1-port

HDMI output interface, 1-port SD Card interface, 1-port UART USB serial port

interface, 1-port SD Card interface, 2-port 40-pin carrier headers and some

button LEDs.

Figure 1-1-1 is the block diagram of the FPGA development board

AX7021B:

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Figure 1-1-1: The block diagram of AX7021B

The interfaces and features included in the development board.

ZYNQ7000 Core Board

It consists of XC7Z020+1GB DDR3+32GB eMMC FLASH + 256Mb QSPI

FLASH. In addition, two crystal oscillators provide clocks, one is 33.3333MHz

for PS system and the other is 50MHz for PL logic.

Gigabit Ethernet Interface

5 channels 10/100M/1000M Ethernet RJ45 interface for Ethernet data

exchange with computers or other network devices. The network interface chip

uses JLSemi JL2121-N040IRNX industrial grade GPHY chip, one Ethernet

connection to the PS end of the ZYNQ chip, and four Ethernet connections to the

PL end of the ZYNQ chip.

HDMI Output Display

One HDMI output interface uses SIL9134 HDMI encoding chip of Silion

Image Corporation, which supports up to 1080P@60Hz output and supports 3D

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output.

USB Interface

1 JTAG debug interface, using MINI USB interface, users can debug and

download ZYNQ system through USB cable and onboard JTAG circuit.

LED Light

9 LEDs, include 6 on the core board and 3 on the extension board. There

are 1 power indicator, 1 DONE configuration indicator, 2 user indicators and 2

serial port transceiver indicators on the core board. There are 1 power indicator

and 2 user indicators on the extension board.

Button

3 buttons, 1 reset button on the core board, and 2 user buttons on the

extension board.

Part 2: AC7021B Core Board Introduction

The AC7021B (core board model, the same below) core board is an FPGA

development board based on the Zynq chip XC7Z020-2CLG484I of the XILINX

ZYNQ7000 series. The ZYNQ chip's PS system integrates two ARM CortexTM-

A9 processors, AMBA® interconnects, internal memory, external memory

interfaces and peripherals. The ZYNQ FPGA chip contains a wide range of

programmable logic cells, DSP and internal RAM.

The core board uses two SK Hynix DDR3 chips (H5TQ4G63AFR-PBI),

each with a 4Gbit DDR capacity; two DDR chips form a 32-bit data bus width,

and the read and write data clock frequency between ZYNQ FPGA and DDR3

is up to 533Mhz; such a configuration can meet the system's high bandwidth

data processing needs

In order to connect to the carrier board, the four board-to-board connectors

of the core board extend the USB interface of the PS side, the Gigabit Ethernet

interface, the SD card interface and other remaining MIO ports. As well as

almost all IO ports (198) of BANK13, BANK33, BAN34 and BANK35 on the PL

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side, the level of IO of BANK33 and BANK34 can be modified by replacing the

LDO chip on the core board to meet the requirements of users with different

level interfaces. For users who need a lot of IOs, this core board will be a good

choice. Moreover, the IOs connection part, the routing between the ZYNQ

FPGA chip and the interface is equal length and differential processing. The

core board size is only 2.36 inch* 2.36 inch, which is very suitable for

secondary development.

Figure: AC7021BCore board Front View

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Figure: AC7021B core board rear view

Part 2.1: ZYQN Chip

The development board uses Xilinx's Zynq7000 series chip, model

XC7Z020-2CLG484I. The chip's PS system integrates two ARM CortexTM-A9

processors, AMBA® interconnects, internal memory, external memory

interfaces and peripherals. These peripherals mainly include USB bus interface,

Ethernet interface, SD/SDIO interface, I2C bus interface, CAN bus interface,

UART interface, GPIO, etc. The PS can operate independently and start up at

power up or reset. Figure 2-1 detailed the

Overall Block Diagram of the

ZYNQ7000 Chip.

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Figure 2-1: Overall Block Diagram of the ZYNQ7000 Chip

The main parameters of the PS system part are as follows:

ARM dual-core CortexA9-based application processor, ARM-v7

architecture, up to 1GHz

32KB level 1 instruction and data cache per CPU, 512KB level 2 cache 2

CPU shares

On-chip boot ROM and 256KB on-chip RAM

External storage interface, support 16/32 bit DDR2, DDR3 interface

Two Gigabit NIC support: divergent-aggregate DMA, GMII, RGMII,

SGMII interface

Two USB2.0 OTG interfaces, each supporting up to 12 nodes

Two CAN2.0B bus interfaces

Two SD card, SDIO, MMC compatible controllers

2 SPIs, 2 UARTs, 2 I2C interfaces

4 groups of 32bit GPIO, 54 (32+22) as PS system IO, 64 connected to

High bandwidth connection within PS and PS to PL

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