ST X-NUCLEO-IDW01M1 User manual

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www.st.com

UM1975

User manual

Getting started with X-NUCLEO-IDW01M1 Wi-Fi expansion

board based on SPWF01SA module for STM32 Nucleo

Introduction

This document provides detailed hardware requirements and board connections for the X-NUCLEO-

IDW01M1 Wi-Fi board based on SPWF01SA Serial-to-Wi-Fi Modules, to allow expansion of the STM32

Nucleo boards. The SPWF01SA module is FCC (FCC ID: VRA-SG9011203), IC certified (IC: 7420A-

SG9011203) and CE certified and includes an STM32 MCU, a low-power 2.4 GHz IEEE 802.11 b/g/n

transceiver with integrated power amplifier and power management, and an SMD antenna.

The X-NUCLEO-IDW01M1 can be plugged onto STM32 Nucleo boards thanks to the ST morpho and

Arduino™ UNO R3 connectors, and the same connectors allow different expansion boards to be easily

stacked on the X-NUCLEO-IDW01M1 board so you can evaluate Wi-Fi connectivity with different

devices in several applications.

The expansion board has the following features:

Onboard SPWF01SA module (order code: SPWF01SA.11) based on the STM32 MCU and a low

power Wi-Fi b/g/n transceiver SoC

USART configurable connections

Jumpers to obtain the SPWF01SA module RESET and I/O board signals (user software

dependent)

Getting Started

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Figure 1: X-NUCLEO-IDW01M1 Wi-Fi expansion board based on SPWF01SA module

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Contents

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Contents

1Getting Started ................................................................................ 6

1.1 Hardware requirements.....................................................................6

1.2 System requirements ........................................................................7

1.3 Setting up the board..........................................................................7

2Hardware description...................................................................... 8

2.1 X-NUCLEO-IDW01M1 expansion board for STM32 Nucleo .............8

2.2 UART and GPIO connection options............................................... 10

2.3 Current measurement ..................................................................... 12

2.4 X-NUCLEO-IDW01M1 component placement details ..................... 12

3Component descriptions .............................................................. 13

3.1 SPWF01SA module ........................................................................ 13

3.2 User push-buttons and LED............................................................ 13

3.3 Radio certification............................................................................ 14

3.3.1 Formal notices required by the U.S. Federal Communications

Commission (FCC)........................................................................................... 14

3.3.2 Formal notices required by Industry Canada (IC) ............................ 14

3.3.3 Formal notices required by the ETSI (CE) ....................................... 14

4Board schematic and bill of materials ......................................... 15

4.1 STM32 Nucleo connections ............................................................ 15

4.2 Bill of materials................................................................................ 15

4.3 Schematic diagram .........................................................................18

4.4 Revision history............................................................................... 19

List of tables

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List of tables

Table 1: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (ST morpho

connector - CN7).........................................................................................................................................8

Table 2: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (ST morpho

connector - CN10).......................................................................................................................................9

Table 3: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (Arduino UNO R3

Connector CN6 - Power).............................................................................................................................9

Table 4: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (Arduino UNO R3

Connector CN8 - Analog) .........................................................................................................................10

Table 5: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 through (Arduino

UNO R3 Connector CN5 - Digital) ............................................................................................................10

Table 6: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 through (Arduino

UNO R3 Connectors CN9 - Digital) ..........................................................................................................10

Table 7: SPWF01SA module UART interface - (optional) with STM32 Nucleo board .............................11

Table 8: SPWF01SA details .....................................................................................................................13

Table 9: Push-buttons and LED functions ................................................................................................13

Table 10: Bill of materials (1 of 2) .............................................................................................................15

Table 11: Bill of materials (2 of 2) .............................................................................................................16

Table 12: Document revision history ........................................................................................................19

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List of figures

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List of figures

Figure 1: X-NUCLEO-IDW01M1 Wi-Fi expansion board based on SPWF01SA module ..........................2

Figure 2: X-NUCLEO-IDW01M1 plugged with STM32 Nucleo board ........................................................6

Figure 3: X-NUCLEO-IDW01M1 component placement details...............................................................12

Figure 4: X-NUCLEO-IDW01M1 board schematic ...................................................................................18

Getting Started

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1 Getting Started

This section describes the hardware requirements for the X-NUCLEO-IDW01M1 expansion

board.

1.1 Hardware requirements

The X-NUCLEO-IDW01M1 is an expansion board for the STM32 Nucleo boards. To

function correctly, the X-NUCLEO-IDW01M1 must be plugged to the STM32 Nucleo board

through the ST morpho or ARDUINO UNO R3 connectors as shown in the figure below.

Information on STM32 Nucleo is available on ST website at http://www.st.com/stm32nucleo

Figure 2: X-NUCLEO-IDW01M1 plugged with STM32 Nucleo board

The interconnection between the STM32 Nucleo board and the X-NUCLEO-IDW01M1 is

designed to work with any STM32 Nucleo board, even though complete testing was

focused on the NUCLEO-L053R8 hosting the ultra-low power STM32L053R8T6, the

NUCLEO-F401RE hosting the dynamic efficiency STM32F401RET6 and the NUCLEO-

F103RB hosting the Mainstream Performance line STM32F103RBT6.

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1.3 System requirements

Using the STM32 Nucleo boards with the X-NUCLEO-IDW01M1 expansion board requires

the following software and hardware:

Windows PC (XP, Vista, 7, 8) to install the firmware package

USB type A to Mini-B USB cable to connect the STM32 Nucleo board to the PC

Installation of the board firmware package (order code: X-CUBE-WIFI1) and the Wi-Fi

graphical user interface utility on the user PC requires the following:

128 MB of RAM

40 MB of hard disk space

The X-CUBE-WIFI1 firmware and relative documentation are available on www.st.com

1.4 Setting up the board

To set up the board:

1. Ensure that a jumper on the JP3 (position 1-2) connector is connected. This jumper

provides the RESET signal to the SPWF01SA module on the board.

2. Ensure that a jumper on the JP4 (position 1-2) connector is connected. This jumper

provides the 2.5 V internal power supply to the GPIO6_ADC0 module signal.

3. Plug the X-NUCLEO-IDW01M1 on the STM32 Nucleo board, as shown in Figure 2:

"X-NUCLEO-IDW01M1 plugged with STM32 Nucleo board"

4. Power the STM32 Nucleo board through the Mini-B USB cable

5. Program the STM32 Nucleo board using the sample firmware provided

6. Reset the STM32 Nucleo board MCU with the onboard Reset button

7. The solution is ready to be used to evaluate Wi-Fi connectivity

Hardware description

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2 Hardware description

This section describes the X-NUCLEO-IDW01M1 features and provides useful information

for understanding the board schematics.

2.1 X-NUCLEO-IDW01M1 expansion board for STM32 Nucleo

The expansion board allows the user to test the functionality of the module. The

SPWF01SA module embeds a low power Wi-Fi b/g/n transceiver SoC, SMD antenna and

STM32 MCU.

Board functionality can be manipulated through the firmware packaged with the X-CUBE-

WIFI1 software, which must be programmed on the STM32 Nucleo board microcontroller.

Please, refer to user manuals UM1724 and UM1725 available on www.st.com for further

information on STM32 Nucleo boards.

The SPWF01SA module and the STM32 Nucleo board are connected through connectors

CN7 (see Table 1: "Interconnection between STM32 Nucleo board and X-NUCLEO-

IDW01M1 (ST morpho connector - CN7)") and CN10 Table 2: "Interconnection between

STM32 Nucleo board and X-NUCLEO-IDW01M1 (ST morpho connector - CN10)".

Moreover, considering that signals available on CN5, CN6, CN8 and CN9 are also

replicated on CN7 even and CN10 odd pin, it useful to indicate the indirect connection

between STM32 Nucleo board and X-NUCLEO-IDW01M1 (see tables from Table 3:

"Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (Arduino UNO

R3 Connector CN6 - Power)" to Table 6: "Interconnection between STM32 Nucleo board

and X-NUCLEO-IDW01M1 through (Arduino UNO R3 Connectors CN9 - Digital)").

Pins marked with an asterisk (*) indicate an alternative pin for that specific

function and pins marked with a hash (#) indicate a specific function reserved for

future use and, not yet implemented on the module SPWF01SA.

Table 1: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (ST morpho

connector - CN7)

CN7 odd

CN7 even

Name

Fcn

Name

PC12

WIFI_RST

GPIO10

PD2

VDD

E5V

GND

IOREF

RESET

PA14

GPIO13

+3V3

+5V

GND

PB7

USART_RX*

GND

VIN

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CN7 odd

CN7 even

USART_CTS*

PA0

USART_RTS*

PA1

VBAT

Table 2: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (ST morpho

connector - CN10)

CN10 odd

CN10 even

Name

Fcn

Name

GPIO6

PC8

PB8

I2C_SCL#

PB9

I2C_SDA#

USART_RX*

PC5

AVDD

U5V

GND

USART_RTS

PA12

USART_CTS

PA11

SPI_CS#

PB12

PB6

USART_TX*

GND

PA9

USART_TX

SPI_MOSI#

PB15

SPI_MISO#

PB14

SPI_CLK#

PB13

AGND

PA10

USART_RX

USART_TX*

PC4

PA2

USART_TX*

PA3

USART_RX*

Table 3: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (Arduino

UNO R3 Connector CN6 - Power)

Signal Name

IOREF

RESET

3V3

GND

VIN

MCU Name

Fcn

3V3

GND

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