UM1975 STMICROELECTRONICS | Alldatasheet
Document overview
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- PDF pages: 20
Technical content
Datasheet sections
- 1 Getting Started
- 1.1 Hardware requirements
- 1.2 System requirements
- 1.3 Setting up the board
- 2 Hardware description
- 2.1 X-NUCLEO-IDW01M1 expansion board for STM32 Nucleo
- 2.2 UART and GPIO connection options
- 2.3 Current measurement
- 2.4 X-NUCLEO-IDW01M1 component placement details
- 3 Component descriptions
- 3.1 SPWF01SA module
- 3.2 User push-buttons and LED
- 3.3 Radio certification
- 3.3.2 Formal notices required by Industry Canada (IC)
- 3.3.3 Formal notices required by the ETSI (CE)
- 4 Board schematic and bill of materials
- 4.1 STM32 Nucleo connections
- 4.2 Bill of materials
- 4.3 Schematic diagram
- 4.4 Revision history
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 an tenna. 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)
Figure 1: X-NUCLEO-IDW01M1 Wi-Fi expansion board based on SPWF01SA module
Table 1: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (ST morpho Table 2: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (ST morpho Table 3: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (Arduino UNO R3 Table 4: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (Arduino UNO R3 Table 5: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 through (Arduino Table 6: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 through (Arduino
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.
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 UM1975
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 Pin Name Fcn Fcn Name Pin 1 2
3 PC12 WIFI_RST GPIO10 PD2 4
5 VDD E5V 6
7 GND 8
11 IOREF 12
13 RESET 14
15 PA14 GPIO13 +3V3 16
19 GND GND 20
21 PB7 USART_RX* GND 22
23 VIN 24
UM1975 Hardware description CN7 odd CN7 even 25 26
27 USART_CTS* PA0 28
29 USART_RTS* PA1 30
33 VBAT 34
Table 2: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (ST morpho connector - CN10) CN10 odd CN10 even Pin Name Fcn Fcn Name Pin
1 GPIO6 PC8 2
3 PB8 I2C_SCL# 4
5 PB9 I2C_SDA# USART_RX* PC5 6
7 AVDD U5V 8
9 GND 10
11 USART_RTS PA12 12
13 USART_CTS PA11 14
15 SPI_CS# PB12 16
17 PB6 USART_TX* 18
19 GND 20
21 PA9 USART_TX 22
25 SPI_MOSI# PB15 26
27 SPI_MISO# PB14 28
29 SPI_CLK# PB13 30
31 AGND 32
33 PA10 USART_RX USART_TX* PC4 34
35 PA2 USART_TX* 36
37 PA3 USART_RX* 38
Table 3: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (Arduino UNO R3 Connector CN6 - Power) Signal Name NC IOREF RESET 3V3 5V GND GND VIN Pin 1 2 3 4 5 6 7 8 MCU Name Fcn 3V3 GND GND
Hardware description UM1975 Table 4: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 (Arduino UNO R3 Connector CN8 - Analog) Signal Name A0 A1 A2 A3 A4 A5 Pin 1 2 3 4 5 6 MCU Name PA0 PA1 PA4 PB0 PC1/ PB9 PC0/ PB8 Fcn USART_CTS* USART_RTS* GPIO13* Table 5: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 through (Arduino UNO R3 Connector CN5 - Digital) Signal Name D15 D14 AREF GND D13 D12 D11 D10 D9 D8 Pin 10 9 8 7 6 5 4 3 2 1 MCU Name PB8 PB9 PA5 PA6 PA7 PB6 PC7 PA9 Fcn I2C_ SCL# I2C_ SDA# GND UART_ TX* UART_ TX Table 6: Interconnection between STM32 Nucleo board and X-NUCLEO-IDW01M1 through (Arduino UNO R3 Connectors CN9 - Digital) Signal Name D7 D6 D5 D4 D3 D2 D1 D0 Pin 8 7 6 5 4 3 2 1 MCU Name PA8 PB10 PB4 PB5 PB3 PA10 PA2 PA3 Fcn UART_RX USART_RX(1) USART_TX(1) Notes: (1)used by STM32 on Nucleo board and connected to ST-LINK
2.2 UART and GPIO connection options
As stated previously, the connection between the SPWF01SA and the STM32 Nucleo boards is made via a four wire UART (with hardware flow control) and some GPIOs. A multiple connection arrangement offers maximum modularity (See Table 4). The alternative pins could be useful in case of conflicts with additional X-NUCLEO expansion boards.
UM1975 Hardware description Table 7: SPWF01SA module UART interface - (optional) with STM32 Nucleo board SPWF01SA Pin / Signal STM32 Pin Placement 6 / TXDI PA10 (default) CN10 – pin 33 CN9 – Pin 3 To use this connection: mount R4 and remove R33, R34, R37 PC5 CN10 – pin 6 To use this optional connection: mount R33 and remove R4, R34, R37 PB7 CN7 – pin 21 To use this optional connection: mount R34 and remove R4, R33, R37 PA3 CN9 – pin 2 CN10 - pin 35 To use this optional connection: mount R37 and remove R4(1)), R33, R34 8 / RXDI PA9 (default) CN10 – pin 21 CN5 – pin 1 To use this optional connection: mount R11 and remove R9, R35, R36 PC4 CN10 – pin 34 To use this optional connection: mount R35 and remove R8, R9, R36 PB6 CN10 – pin 17 CN5 – Pin 3 To use this optional connection: mount R9 and remove R8, R35, R36 PA2 CN9 – pin 1 CN10 – pin 37 To use this optional connection: mount R36 and remove R8(1), R9, R35 9 / CTS1_DN PA11(default) CN10 – pin 14 To use this connection: mount R2 and remove R39 PA0 CN8 – pin 1 CN7 – pin 28 To use this optional connection: mount R39 and remove R2 10 / RTS1_DP PA12 CN10 – pin 12 To use this connection: mount R6 and remove R38 PA1 CN8 – pin 2 CN7 – pin 30 To use this optional connection: mount R38 and remove R6 Notes: (1) please refer to UM1724 for instructions on how to modify the STM32 Nucleo board to use these pins. To use the optional connections, you need to modify the firmware for the right allocation of STM32 resources.
Hardware description UM1975
2.3 Current measurement
To monitor the power consumption of the onboard SPWF01SA module, remove the R3 (0 Ω resistor) and, using jumper JP1 contacts as connectors, insert an ammeter probe between pins 1 and 2 of the connector and measure current absorption. Since the power consumption of the SPWF01SA module is usually very low, accurate instrumentation able to take measurements in the order of a few µA may be required.
2.4 X-NUCLEO-IDW01M1 component placement details
The following figure shows component placement on the X-NUCLEO-IDW01M1 board Figure 3: X-NUCLEO-IDW01M1 component placement details
UM1975 Component descriptions
3 Component descriptions
This section describes the devices included on the X-NUCLEO-IDW01M1 expansion board. check whether resistor R21 is present on the X-NUCLEO-IDW01M1 board; if it is, please remove it as it may interfere with JTAG debug.
3.1 SPWF01SA module
The SPWF01SA module is FCC (FCC ID: VRA-SG9011203), IC (IC: 7420A-SG9011203) and CE certified. The SPWF01SA contains a low power Wi-Fi b/g/n transceiver SoC - a highly integrated Wi-Fi system dedicated to the WLAN management and compliant with Wi- Fi network specifications. The interface of the device to the STM32 Nucleo boards is via a UART interface and some GPIO pins. The SPWF01SA module also integrates an SMD antenna and has an embedded 38.4 MHz oscillator for the embedded Wi -Fi radio. Table 8: SPWF01SA details Feature Description Sales type SPWF01SA.11 Package SMD 30 pin Operating voltage Typ. 3.3 V
3.2 User push-buttons and LED
To command certain I/O signals and signal SPWF01SA module status information, the X - NUCLEO-IDW01M1 expansion board has two push-buttons and four LEDs. The hardware and firmware functions associated with the push-buttons and LEDs are shown in the following table: Table 9: Push-buttons and LED functions Feature Description RESET (hardware, by the user) Push the SW1 push-button on the board GPIO7_ADC1 module signal (hardware & firmware dependent, by the user) Push the SW2 push-button on the board
3.3 V board power supply on LED 1 (green) lit
GPIO10 mod. signal (firmware dependent) LED 2 (blue) lit GPIO14 mod. signal (firmware dependent) LED 3 (red) lit GPIO13 mod. signal (firmware dependent) LED 4 (yellow) lit
Component descriptions UM1975
3.4 Radio certification
3.4.1 Formal notices required by the U.S. Federal Communications Commission (FCC) Any changes or modifications to this equipment not expressly approved by STMicroelectronics may cause harmful interference and void the user’s authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including any interference that may cause undesired operation. This device uses, generates and radiates radio frequency energy. The radio frequency energy produced by this device is well below the maximum exposure limit established by the Federal Communications Commission (FCC). The X-NUCLEO-IDW01M1 contains the FCC certified SPWF01SA module (FCC ID: VRA- SG9011203).
3.4.2 Formal notices required by Industry Canada (IC)
English: This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. French: Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. 'Exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. The X-NUCLEO-IDW01M1 contains the IC certified SPWF01SA module (IC: 7420A- SG9011203)
3.4.3 Formal notices required by the ETSI (CE)
This module complies with the following European EMI/EMC and safety directives and standards: ETSI EN 300 328 V1.8.1:2012 EN 301 489-1 V1.9.2:2011 + EN 301 489-17 V2.2.1:2009 EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011 + A2:2013 EN 62479:2010
UM1975 Board schematic and bill of materials
4 Board schematic and bill of materials
4.1 STM32 Nucleo connections
The X-NUCLEO-IDW01M1 expansion board is designed to be plugged directly on the STM32 Nucleo board connectors. The X-NUCLEO-IDW01M1 is configured by default to be compatible with the highest number of STM32 Nucleo boards possible. It may be also be configured, via resistor placement, to use different I/O configurations in order to match specific customer targets. Refer to the X-NUCLEO-IDW01M1 user manual for more detailed information regarding the possible I/O configuration options. Check to see if resistor R21 is present; if it is, please remove it as it may interfere with JTAG debug.
4.2 Bill of materials
Table 10: Bill of materials (1 of 2) Item Quantity Reference Description Note 1 10 C1,C3,C5,C6,C7,C 8, C9,C10,C11,C12 Bypass capacitor / signal delay / filtering 2 1 C2 Bypass capacitor 3 1 C4 Bypass capacitor 4 1 CN8 Arduino UNO R3 connector 5 2 CN6,CN9 Arduino UNO R3 connector 6 1 CN5 Arduino UNO R3 connector 7 2 CN7,CN10 ST morpho connector 8 1 J1 Debug connector Not Mounted 9 2 J2 Module IO for Development 10 2 JP1,JP2 Option jumper 11 2 JP3,JP4 Option jumper 12 1 LED1 Power LED 13 1 LED2 Blinking while module is running 14 1 LED3 Wi-Fi power UP 15 1 LED4 Wi-Fi link UP 16 3 R3,R19,R21 Option resistor (default) 17 1 R15 Filter for IRQ signal 18 3 R18,R22,R23 Current polarization for LEDs 19 1 R5 Current polarization for power LED
Board schematic and bill of materials UM1975 Item Quantity Reference Description Note 20 4 R1,R13,R16,R17 Current limitation for 3.3 V signal 21 1 R24 Signal pull-up 22 1 R14 Signal pull-down 23 0 R7,R20,R26,R28,R 29,R30,R31,R32 Option selection (optional) Not Mounted 24 4 R2,R4,R6,R8 Option selection (default) 25 0 R9,R33,R34,R35,R 36,R37,R38,R39 Option selection (optional) Not Mounted 26 1 U1 LDO power supply 27 1 U2 Signal level shifter 28 2 SW1,SW2 User push button 29 2 TP1,TP2 Test point 30 1 WF1 SPWF01SA Serial-to-Wi-Fi Modules 31 1 PCB X-NUCLEO-IDW01M1 PCB Table 11: Bill of materials (2 of 2) Item Package Manufacturer Manufacturer’s ordering code Value 1 0603 MURATA GRM188R71C104KA01D 100 nF 16 V 2 0603 MURATA GCM188R71C105KA64D 1 uF 16 V 3 0805 MURATA GCM21BR70J106KE22L 10 uF 6.3 V
4 FEMALE ON
SSQ-106-03-G-S 6 pins, 2.54 F
5 FEMALE ON
SSQ-108-03-F-S 8 pins, 2.54 F
6 FEMALE ON
SSQ-110-03-F-S 10 pins, 2.5 F
7 FEMALE ON
Strip 19 x 2p 2.54
8 Female in top STELVIO KONTEK 6778268508410-R
pitch = 1.27 mm 9 7pins x 2lines -- -- strip 7x2p 2.54 10 2pins x 1line -- -- strip 2p 2.54 11 3pins x 1line -- -- strip 3p 2.54 12 0603 -- -- GREEN LED
UM1975 Board schematic and bill of materials Item Package Manufacturer Manufacturer’s ordering code Value 13 0603 -- -- BLUE LED 14 0603 -- -- RED LED 15 0603 -- -- YELLOW LED 16 0603 -- -- 0 Ω 22 0603 -- -- 220 kΩ ±5% 23 0603 -- -- Not mounted 24 0805 -- -- 0 Ω 25 0805 -- -- Not mounted
26 SOT323-5L STMicroelectronics STLQ50C25R STLQ50C25R
27 QFN10 (1.8 x 1.4) Any Interface between a 3.3 V bus and a 2.5 V Mounted on board - STMicroelectronics ST2G3236QTR
28 SMD
SKQYAB (G4822969M) 29 1 pin -- -- strip 1p 30 15.24x26.924 STMicroelectronics SPWF01SA.11 SPWF01SA.11 Serial-to-Wi-Fi Modules)
Board schematic and bill of materials UM1975
4.4 Schematic diagram
Figure 4: X-NUCLEO-IDW01M1 board schematic
UM1975 Board schematic and bill of materials
4.5 Revision history
Table 12: Document revision history Date Version Changes 06-Nov-2015 1 Initial release.