Microchip Technology ATWILC3000 Shield Manuel utilisateur

ATWILC3000

ATWILC3000 Shield User Guide

Introduction

The ATWILC3000 Shield is an interface board designed to demonstrate the ATWILC3000-MR110CA, a

single chip IEEE® 802.11 b/g/n RF/Baseband/MAC network controller with Bluetooth® Low Energy. This

module is optimized for low-power applications. The ATWILC3000 module can be connected to the host

MCU board using any of the following interfaces:

• For Wi-Fi®, either Secure Digital Input/Outputs (SDIO) or Serial Peripheral Interface (SPI) is used.

• For Bluetooth, Universal Asynchronous Receiver/Transmitter (UART) is used.

Figure 1. ATWILC3000 Shield Board

Features

• Debug I2C and UART Header Footprints

• External Power Supply Header

• Current Measurement Header

• Power and User LED

• Chip Antenna

• Supports 32.768 kHz Low-Power Surface Mount Device (SMD) Crystal Oscillator

• Arduino Shield Stacking Connector

– Supports Wi-Fi through SDIO by default. Pinout is compatible with ATSAMA5D4-XULT

– Supports Wi-Fi through SPI (optional). Pinout is compatible with Arduino header specification

– Supports Bluetooth through UART

• Raspberry Pi Stacking Connector

– Supports Wi-Fi through SDIO or SPI

– Supports Bluetooth through UART

ATWILC3000

Table of Contents

Introduction......................................................................................................................1

Features.......................................................................................................................... 1

1. Kit Overview.............................................................................................................. 4

2. ATWILC3000 Shield Peripheral Configuration...........................................................5

3. Design Documentation and Relevant Links...............................................................6

4. Hardware Specifications............................................................................................7

4.1. ATWILC3000 Shield Arduino Shield Stacking Connectors.......................................................... 7

4.2. ATWILC3000 Shield Raspberry Pi Stacking Connector...............................................................9

4.3. Power Supply Connector............................................................................................................11

4.4. Current Measurement Header....................................................................................................11

4.5. Debug Connectors......................................................................................................................11

5. CE and FCC............................................................................................................ 13

6. Hardware Revision History and Known Issues........................................................14

6.1. Identifying Product ID and Revision........................................................................................... 14

6.2. Revision......................................................................................................................................14

7. Document Revision History..................................................................................... 15

The Microchip Web Site................................................................................................ 16

Customer Change Notification Service..........................................................................16

Customer Support......................................................................................................... 16

Microchip Devices Code Protection Feature................................................................. 16

Legal Notice...................................................................................................................17

Trademarks................................................................................................................... 17

Quality Management System Certified by DNV.............................................................18

Worldwide Sales and Service........................................................................................19

1. Kit Overview

The ATWILC3000 Shield is a shield board containing the low-power ATWILC3000-MR110CA 802.11 b/g/n

IoT module. By default, the ATWILC3000 Shield is configured to use with the SDIO interface which is

compatible with SAMA5D4-XULT.

Figure 1-1. ATWILC3000 Shield Evaluation Kit Overview

Raspberry Pi

40-pin Connector

Wi-Fi

UART

Debug

I2C Current

Measurement

Header

External

Power

Supply

Arduino

Compatible

Headers

32 KHz Crystal Oscillator

Power & Status LED

ATWILC3000-MR110CA

Module

The ATWILC3000 Shield can also be configured to use with other host MCU boards using SPI peripheral

interface exposed through Arduino compatible connectors. For more details, see ATWILC3000 Wiki for

the list of supported boards and related documents.

ATWILC3000

Kit Overview

2. ATWILC3000 Shield Peripheral Configuration

The ATWILC3000 module on the shield board can communicate with the host board using either SDIO or

SPI. By default, SDIO is supported. A resistor combination must be modified to add SPI support. The

following table provides resistor configuration details.

Table 2-1. ATWILC3000 Shield Resistor Configuration for SDIO/SPI

Peripheral Interface Required Modification for Resistors

SDIO Mounted resistors: R311, R218, R219, R220, R221

Not mounted resistors: R214, R215, R216, R217, R310

SPI Mounted resistors: R214, R215, R216, R217, R310

Not mounted resistors: R218, R219, R220, R221, R311

Figure 2-1. ATWILC3000 Shield SDIO-SPI Resistors

ATWILC3000

ATWILC3000 Shield Peripheral C...

3. Design Documentation and Relevant Links

The following list contains links to the most relevant documents and software available for the

ATWILC3000 Shield.

•Xplained Boards is a series of small-sized and easy-to-use evaluation kits for microcontrollers and

other products. It consists of low-cost MCU boards for evaluation and demonstration of features

and capabilities of different MCU families.

•Atmel Studio provides a free Atmel IDE for development of C/C++ and assembler code for

microcontrollers.

•Data Visualizer is a program used for processing and visualizing data. The Data Visualizer can

receive data from various sources, such as the embedded debugger data gateway interface found

on Xplained Pro boards and COM ports.

•ATWILC3000 page provides information and documentation on the Microchip ATWILC3000-

MR110CA module.

•ATWILC3000 Wireless Wiki page is an online directory to access source code and documentation

for the ATWILC3000.

•SMART SAMA5 ARM® Cortex® based MPUs page is an online directory to access the tools and

software for SAMA5 Cortex-A5-Based Embedded MPUs.

ATWILC3000

Design Documentation and Relevant Links

4. Hardware Specifications

This chapter describes the connectors and header of the ATWILC 3000 Shield board.

4.1 ATWILC3000 Shield Arduino Shield Stacking Connectors

The ATWILC3000 Shield contains Arduino shield stacking connectors, which are used to connect the

board to an MCU base board. This is also used to expose the unused pins to the user. The pinout

definition for the shield connectors are given in the following tables.

Table 4-1. J200 Stacking Connector

Pin Number Function Description

1 SD_DAT2 SDIO Data 2

2 SD_DAT1 SDIO Data 1

3 SPI_SS SPI select. By default, this pin is not connected. Mount

R217 (0Ω) to connect.

4 SPI_MOSI SPI MOSI. By default, this pin is not connected. Mount

R216 (0Ω) to connect.

5 SPI_MISO SPI MISO. By default, this pin is not connected. Mount

R215 (0Ω) to connect.

6 SPI_SCK SPI Clock. By default, this pin is not connected. Mount

R214 (0Ω) to connect.

7 GND Ground

8 NC Not connected

9 NC Not connected

10 NC Not connected

Table 4-2. J201 Stacking Connector

Pin Number Function Description

1 NC Not connected

2 NC Not connected

3 NC Not connected

4 VCC_INT_P3V3 3.3V power supply. Mount jumper cap on J300-1 and

J300-2 to use this supply.

5 NC Not connected

6 GND Ground

7 GND Ground

8 NC Not connected

ATWILC3000

Hardware Specifications

Table 4-3. J202 Stacking Connector

Pin Number Function Description

1 SD_DAT3 SDIO Data 3

2 SD_CLK SDIO Clock

3 SD_CMD SDIO command

4 PWML2/RTC_CLK By default, this pin is not connected. Mount R315 (0Ω) to

connect.

5 SD_DAT0 SDIO Data 0

6 SLEEP Sleep mode control

7 UART_RX Bluetooth® UART RXD. By default, this pin is not

connected. Mount R222 (0Ω) to connect.

8 UART_TX Bluetooth® UART TXD. By default, this pin is not

connected. Mount R223 (0Ω) to connect.

Table 4-4. J203 Stacking Connector

Pin Number Function Description

1 RST ATWILC3000 Reset to be controlled by the host MCU

2 IRQN Host interrupt request output

3 RTS Bluetooth® UART RTS output. By default, this pin is not

connected. Short J208 to connect.

4 CTS Bluetooth® UART CTS input. By default, this pin is not

connected. Short J209 to connect.

5 CHIP_EN Chip enable

6 GPIO3/SUSPEND GPIO signal

7 NC Not connected

8 NC Not connected

Table 4-5. J204 Stacking Connector

Pin Number Function Description

1 UART_RX_1 Bluetooth® UART receive

2 UART_TX_1 Bluetooth® UART transmit

3 NC Not connected

4 NC Not connected

5 NC Not connected

6 NC Not connected

ATWILC3000

Hardware Specifications

Pin Number Function Description

7 NC Not connected

8 NC Not connected

Table 4-6. J206 Stacking Connector

Pin Number Function Description

20 UART_RTS Bluetooth® UART RTS output

21 UART_CTS Bluetooth® UART CTS input

35 GND Ground

36 GND Ground

4.2 ATWILC3000 Shield Raspberry Pi Stacking Connector

The ATWILC3000 Shield contains a Raspberry Pi compatible 40-pin stacking connector used to connect

the board to a Raspberry Pi base board. This is also used for exposing the unused pins to the user. The

pinout definition for the Raspberry Pi connector is given in the following table.

Table 4-7. J207 Stacking Connector

Pin Number Function Description

1 VCC_INT_P3V3 3.3V power supply. Insert jumper cap on J300-1 and

J300-2 to use this power supply.

2 NC Not connected

3 GPIO2/SUSPEND GPIO signal

4 NC Not connected

5 CHIP_EN ATWILC3000 Chip enable is controlled by the host

MCU

6 GND Ground

7 IRQN Host interrupt request output

8 UART_RX Bluetooth® UART receive

9 GND Ground

10 UART_TX Bluetooth® UART transmit

11 CTS Bluetooth® UART CTS input

12 GEN1/RTC_CLK By default, this pin is not connected. Mount R315 (0Ω)

to connect.

13 SDDATA3 SDIO Data 3. By default, this pin is not connected.

Mount R227 (0Ω) to connect.

14 GND Ground

ATWILC3000

Hardware Specifications

Pin Number Function Description

15 SDCLK SDIO Clock. By default, this pin is not connected.

Mount R228 (0Ω) to connect.

16 SDCMD SDIO Command. By default, this pin is not connected.

Mount R232 (0Ω) to connect.

17 NC Not connected

18 SDDATA0 SDIO Data 0. By default this pin is not connected.

Mount R229 (0 Ω) to connect.

19 SPI MOSI SPI Master Output Slave Input. By default, this pin is

not connected. Mount R216 (0Ω) to connect.

20 GND Ground

21 SPI MISO SPI Master Input Slave Output. By default this pin is

not connected. Mount R215 (0Ω) to connect.

22 SDDATA1 SDIO Data 1. By default, this pin is not connected.

Mount R230 (0Ω) to connect.

23 SPI SCLK SPI Clock. By default, this pin is not connected. Mount

R214 (0Ω) to connect.

24 SPI CS0 SPI Select. By default, this pin is not connected. Mount

R217 (0Ω) to connect.

25 GND Ground

26 SLEEP Sleep mode control

27 NC Not connected

28 NC Not connected

29 NC Not connected

30 GND Ground

31 NC Not connected

32 RST ATWILC3000 Reset is controlled by host MCU

33 NC Not connected

34 GND Ground

35 NC Not connected

36 RTS Bluetooth® UART receive output. By default, this pin is

not connected. Short J208 to connect.

37 SDDATA2 SDIO Data 2. By default, this pin is not connected.

Mount R231 (0Ω) to connect.

38 NC Not connected

ATWILC3000

Hardware Specifications

Table des matières

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