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Avnet公司的MiniZed?開發(fā)是基于Xilinx公司的Zynq 7Z007S器件，它是單核ARM? Cortex?-A9處理器系統(tǒng)，最大工作頻率667MHz，256KB RAM，邏輯單元（LE）等效于Artix -7 FPGA，23K邏輯元件，1.8Mb區(qū)塊RAM.而MiniZed?開發(fā)板存儲了Micron 512 MB DDR3L，Micron 128 Mb Quad SPI NOR閃存，Micron 8GB eMMC，以及用于JTAG和UART的Micro USB連接器，用于大功率模式外接電源的Micro USB以及用于USB從器件連接的USB Type A主連接器。主要用在入門級/低成本Zynq開發(fā)環(huán)境，采用Wi-Fi和爛牙的無線設(shè)計，音頻信號處和IoT/云連接。本文介紹了Zynq 7Z007S主要特性，MiniZed?開發(fā)板主要特性，框圖，電路圖，材料清單和PCB設(shè)計圖。

MiniZed? is a single-core Zynq 7Z007S development board.With the advent of the latest cost-optimized portfolio fromXilinx， this board targets entry-level Zynq developers witha low-cost prototyping platform.

This compact design features on-board connectivity through USB， Wi-Fi andBluetooth. Peripherals can be plugged into dual Pmod-compatible connectors，the Arduino-compatible shield interface or the USB 2.0 host interface. JTAGcircuitry is incorporated onto the MiniZed base board， so with a single micro-USB cable to your laptop you are already up and running. User LED’s， a buttonand a switch allow for a physical board interface.

Micron memory solutions are presented for QSPI flash， DDR3L memory andon-board eMMC instead of an external SD card. The Murata Type 1DX wirelesssolution incorporates 802.11b/g/n Wi-Fi as well as Bluetooth 4.1， whichprovides both Bluetooth Classic and Low Energy （BLE）。 The integrated powersupply from Dialog generates all on-board voltages， while an auxiliary supplyinput can be used to power designs that require additional current. From STMicro there is an on-board motion and temperature sensor， as well as a digitalmicrophone.

MiniZed provides for an efficient hardware reference design， while it is alsoan inexpensive board that can be used to run workshops and tutorials. Theboard aims to showcase the power of Zynq， where the Cortex A9 processorcore integrates seamlessly with the programmable fabric to provide signalprocessing and control solutions. The on-board digital microphone serves asan input for a variety of illustrations of how to implement FIR filters， FFT’s anddirect memory access.

MiniZed?開發(fā)板包括：

--MiniZed development board

--Voucher for SDSoC license from Xilinx

--Micro USB cable

The main purposes of the MiniZed Kit are the following：

? Be a low-cost starter kit for ZynqSoC developers

? Showcase the Zynq 7000S single-core family

? Incorporate the Murata 1DX Bluetooth and Wireless solution

? Demonstrate Bluetooth for peripherals or phone/tablet user interfaces

? Use an on-board microphone as input for PL-PS signal processing reference designs

? Allow for the use of Arduino-compatible， PmodTM-compatible and USB peripherals

? Showcase hardware acceleration for software bottlenecks

圖1.MiniZed?開發(fā)板外形圖

MiniZed?開發(fā)板主要特性：

? Zynq single-core System-on-Chip （SoC） device ： XC7Z007S-1CLG225C

? Storage ? Micron 512 MB DDR3L

? Micron 128 Mb Quad SPI NOR flash

? Micron 8GB eMMC

? Micro USB connector for on-board JTAG and UART via FTDI device

? Micro USB connector for external power in high power mode

? USB Type A host connector for a USB slave device connection

? Arduino Shield connectors for Arduino-compatible peripherals

? Pmod sockets x 2

? Murata wireless“Type 1DX”module： LBEE5KL1DX ? based on the Cypress BCM4343W

? 2.4 GHz Wi-Fi complies with 802.11b/g/n

? Bluetooth ? Bluetooth Version 4.1 plus EDR （Enhanced Data Rate）

? Power Class 1 （10dBm max） and BLE （Bluetooth Low Energy）

? Leverages certification of reference design that uses PCB antenna

? Dialog PMIC （power-management IC） with I2C interface ： DA9062

? Bi-element user LEDs x 2

? Single-color LEDs for Power， Config Done， Wifi， and Bluetooth

? Reset pushbutton & user PS pushbutton x 1

? User PL switch x 1

? ST Micro Accelerometer and Temperature sensor ： LIS2DS12

? ST Micro MEMS microphone sensor ： MP34DT05

MiniZed?開發(fā)板目標(biāo)應(yīng)用：

--Entry level/Low-cost Zynqdevelopment environment

--Training， prototyping andproof-of-concept demo platform

--Wireless design and demonstrationsusing Wi-Fi and Bluetooth

--Audio signal processing examplesusing the microphone input

--IoT/Cloud connectivity for on-boardand peripheral sensors

The Zynq 007S device （in the CLG-225 package） contains：

? Processor System （PS）： ? Single-core ARM? Cortex?-A9

? Max frequency 667MHz

? 256 KB on-chip RAM

? 84 PS I/O pins

? USB 2.0 OTG， SDIO x 2， UART x 2， SPI x 2， I2C x 2 etc.

? Logic Elements （LE）： ? Programmable logic architecture equivalent to an Artix -7 FPGA

? 23K Logic Cells

? 1.8Mb Block RAM （50 x 36Kb blocks）

? 54 High Range （1.2V to 3.3V） I/O pins

? The 225-pin package is used since this is the lowest cost device in this family

? This package restricts the DDR interface to 16 bits

? Only one USB master interface is supported

? Only 1 of the 2 SDIO controllers in the PS are available directly from the PS，the other through EMIO. The CLG225 does not support booting from SD Card.

? One PS UART is routed to the computer via USB， the other is used for communication with the Bluetooth part of the Murata wireless module. For communication with Shield or Pmod peripherals， one of these UARTs can be re-purposed or another UART can be instantiated in the PL.

? I/O levels of 3.3V are supported for PMOD and Arduino peripherals.

? All MIO pins are 3.3V.