Quickfeather board

============================== QuickFeather Development Board

.. figure:: img/feather-board.png

Overview

This repository contains open hardware design files for the QuickFeather development board <https://www.quicklogic.com/products/eos-s3/quickfeather-development-kit/>_ based on the QuickLogic EOS S3 Sensor Processing Platform <https://www.quicklogic.com/products/eos-s3/>. The design files were created by Antmicro <https://www.antmicro.com> in cooperation with QuickLogic <https://www.quicklogic.com/>. The board has been designed to keep compatibility with the Adafruit Feather <https://learn.adafruit.com/adafruit-feather/feather-specification> ecosystem of evaluation boards. This allows the user to explore functionalities of the EOS S3 platform.

Getting Started

The QuickFeather_UserGuide <https://github.com/QuickLogic-Corp/quick-feather-dev-board/blob/master/doc/QuickFeather_UserGuide.pdf>_ contains instructions for running the pre-installed example program.

Key features

• QuickLogic EOS S3 Processing Platform
• mCube MC3635 <https://mcubemems.com/wp-content/uploads/2019/06/MC3635-Datasheet-APS-048-0044v1.6.pdf>_ accelerometer
• Infineon DPS310 <https://www.infineon.com/dgdl/Infineon-DPS310-DataSheet-v01_01-EN.pdf?fileId=5546d462576f34750157750826c42242>_ pressure sensor
• Infineon IM69D130 <https://www.infineon.com/dgdl/Infineon-IM69D130-DS-v01_00-EN.pdf?fileId=5546d462602a9dc801607a0e46511a2e>_ MEMS microphone
• 16Mbit of on-board flash memory <http://www.gigadevice.com/datasheet/gd25q16c/>_
• User button and RGB LED
• Powered from USB or a single Li-Po battery
• Integrated battery charger <http://ww1.microchip.com/downloads/en/DeviceDoc/20001984g.pdf>_
• USB data signals tied to programmable logic
• IO signals break-routed into general purpose pinheads
• Compatible with standard 0.1" breadboards

Layout and dimensions

.. figure:: img/feather-layout.png

Development ecosystem

Simulation

The board is supported in Renode <https://renode.io/>, the open source simulation framework by Antmicro - you can run a virtual copy of this hardware for software development purposes on your PC. A link to the relevant demo script is provided in Renode's supported boards section <https://renode.readthedocs.io/en/latest/introduction/supported-boards.html>.

Basic Usage

Simple

Connect the micro-usb port of the board to the PC, which will both provide power to the board as well as offer a virtual USB-CDC UART port out of the box.

Advanced

For using the board with advanced scenarios, such as loading a custom FPGA image, an additional dedicated USB-UART board (for example based on the PL2303, FT232 etc.) needs to be connected to the QuickFeather UART pins, as shown below: ::

  +--------------------------+         +--------------+  
  | QF UART RX(IO_45) [J3.3] +-------->+ USB-UART TX  |  
  |                          |         |              |  
  |                          |         |              |  
  | QF UART TX(IO_44) [J3.2] +-------->+ USB-UART RX  |  
  |                          |         |              |  
  |                          |         |              |  
  | QF GND      (GND) [J3.1] +-------->+ USB-UART GND |  
  +--------------------------+         +--------------+  

Refer to QuickFeather_UserGuide <https://github.com/QuickLogic-Corp/quick-feather-dev-board/blob/master/doc/QuickFeather_UserGuide.pdf>_ for further details