u-blox EVK-NORA-W10 Evaluation kit User Guide

User Guide for u-blox models including: EVK-NORA-W10 Evaluation kit, EVK-NORA-W10, Evaluation kit, kit

EVK-NORA-W1, user guide

Evaluation kit for NORA-W10 series modules

EVK-NORA-W1 user guide

EVK-NORA-W10 | u-blox

EVK-NORA-W1, user guide - U-blox

Jul 22, 2022 — u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this document.

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EVK-NORA-W1 UserGuide UBX-22002764

EVK-NORA-W10
Evaluation kit for NORA-W10 series modules
User guide

Abstract
The document describes how to set up the EVK-NORA-W101 and EVK-NORA-W106 evaluation kits to evaluate the NORA-W10 series modules. To obtain the different options for debugging and the development capabilities included in the evaluation board see NORA-W10 system integration manual [2].

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EVK-NORA-W1 - User guide

Document information

Title Subtitle Document type Document number Revision and date Disclosure restriction

EVK-NORA-W1

Evaluation kit for NORA-W10 series modules

User guide

UBX-22002764

R01

3-May-2022

C1-Public

Product status
In development / Prototype Engineering sample

Corresponding content status

Objective specification

Target values. Revised and supplementary data will be published later.

Advance information

Data based on early testing. Revised and supplementary data will be published later.

Initial production

Early production information Data from product verification. Revised and supplementary data may be published later.

Mass production/ End of life

Production information

Document contains the final product specification.

This document applies to the following products:

Product name

Document status

EVK-NORA-W101

Objective specification

EVK-NORA-W106

Objective specification

For information about the hardware, software, and status of the available product types, see the

NORA-W10 data sheet [1].

u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this document. Copying, reproduction, modification or disclosure to third parties of this document or any part thereof is only permitted with the express written permission of u-blox. The information contained herein is provided "as is" and u-blox assumes no liability for its use. No warranty, either express or implied, is given, including but not limited to, with respect to the accuracy, correctness, reliability and fitness for a particular purpose of the information. This document may be revised by u-blox at any time without notice. For the most recent documents, visit www.u-blox.com. Copyright © u-blox AG.

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Document information

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EVK-NORA-W1 - User guide
Contents
Document information ................................................................................................................................ 2 Contents .......................................................................................................................................................... 3 1 Product description .............................................................................................................................. 4
1.1 Key features ................................................................................................................................................. 4 1.2 Items included in kit.................................................................................................................................... 5
1.2.1 EVK-NORA-W101 kit contents........................................................................................................ 5 1.2.2 EVK-NORA-W106 kit contents........................................................................................................ 5
2 Setting up the evaluation board ....................................................................................................... 6 3 Hardware description ........................................................................................................................... 7
3.1 Power ............................................................................................................................................................. 7 3.1.1 Powering the board ............................................................................................................................ 7
3.2 Reset.............................................................................................................................................................. 8 3.3 Buttons.......................................................................................................................................................... 9 3.4 LEDs.............................................................................................................................................................10 3.5 Serial communication ..............................................................................................................................11 3.6 32.768 kHz low frequency clock.............................................................................................................12 3.7 Current sensing headers .........................................................................................................................13 3.8 External JTAG debug interface..............................................................................................................14 3.9 QSPI .............................................................................................................................................................15 3.10 GPIO jumpers .............................................................................................................................................16 3.11 Header pin-out ...........................................................................................................................................17
Appendix ....................................................................................................................................................... 20 A Glossary ................................................................................................................................................. 20 Related documentation ........................................................................................................................... 21 Revision history .......................................................................................................................................... 21 Contact.......................................................................................................................................................... 22

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Contents

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EVK-NORA-W1 - User guide
1 Product description
The EVK-NORA-W10 evaluation kit provides stand-alone use of the NORA-W10 series module. All features of the NORA-W10 series modules are easily accessed from the evaluation board. A simple USB connection provides power, programming, and COM ports. Four user buttons are available, as well as a USB peripheral connector, user LEDs, and a reset button.
GPIO signals are available on headers that are compatible with the Arduino® form factor. This allows easy use of existing Arduino shields. Current sense resistors allow for measuring current into the module and into the shield. This guide provides setup instructions for starting development and describes the hardware functionality of the EVK-NORA-W10 board.
1.1 Key features
· Used for evaluation of NORA-W101 or NORA-W106 modules · COM ports and debug ports over USB · Full GPIO of the NORA-W1 series · Buttons and LEDs for user interaction · 32.768 kHz Crystal · USB peripheral connector · Power input via USB-C or pin sockets · Current measurements via pin headers and jumpers

Figure 1: EVK-NORA-W10 evaluation board (top view)

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1.2 Items included in kit
1.2.1 EVK-NORA-W101 kit contents
· EVK-NORA-W10 evaluation board with NORA-W101 module · USB-C to USB-A cable · 2.4 GHz U.FL antenna kit

EVK-NORA-W1 - User guide

1.2.2 EVK-NORA-W106 kit contents
· EVK-NORA-W10 evaluation board with NORA-W106 module · USB-C to USB-A cable · 2.4 GHz antenna integrated onto NORA-W106 module (no external antenna)

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EVK-NORA-W1 - User guide
2 Setting up the evaluation board
The EVK-NORA-W10 is delivered without any software (open CPU) and the software must be developed by the user.
The following devices are applicable:
· EVK-NORA-W101 · EVK-NORA-W106
The module is designed to be used only with the applicable software and only compatible software can be flashed on the module.
Connect external power supply to the EVK as described in Powering the board. The status light (D10) (green) lights up, indicating that the internal EVK 3.3 V is on.
When using the evaluation board with external antenna, before powering up the EVK, ensure that
you have connected the 2.4 GHz antenna with the U.FL antenna connector (J12). Failing to do so may cause undesired operation.
Observe that the inrush current when powering-up the EVK can be significantly higher than during
normal operation.
The operating system will install the correct COM port drivers automatically. The drivers will need to be installed only when you connect the unit to a new computer for the first time. For more information about the COM ports and their configuration, see the FTDI FT231XQ-R Datasheet [3].
One COM port will automatically be assigned to the unit by the Windows OS. To view the assigned COM ports on Windows 10, follow the steps mentioned below:
· Open the Control Panel and click Hardware and Sound. · Click Device Manager in Devices and Printers. This will open the Device Manager window where
you can view the assigned COM ports.
The NORA-W10 open CPU variants are to be used when developing custom software based on the Espressif SDK ESP-IDF. Before compiling custom software, the ESP-IDF must be configured for the NORA-W10 open CPU variant.
More information on this topic can be found in the NORA-W10 system integration manual [2].

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3 Hardware description
Design files for the EVK-NORA-W10 PCB may be requested from your local u-blox support team.
3.1 Power
The EVK-NORA-W1 has three possible power sources, as listed below: · USB from the debug interface · USB peripheral on the NORA-W1 itself · 2.54 mm pitch pin header (J1 pin-8) for supplying + 5 V [ 3.6 5.5 V] Each of the three power sources are separated via a Schottky diode (D1 D3, MBR120VLSFT3G). This prevents reverse voltage to any of the other supplies thus the power sources can be connected simultaneously.
Only if the power protection circuits are left intact can the USB be safely connected at the same
time as external power. This makes programming of the module easier.
The EVK USB type C connectors are only capable of handling 5 V input, 12 V is not allowed.
3.1.1 Powering the board
By moving the power switch to "ON" VBUS is fed into the 3.3 V LDO regulator and the board is powered-up. This is indicated by the power LED D10 (green) lights up. The LDO regulator powers the +3V3, VDD, and VDD-IO power rails.

Figure 2: EVK schematic - power supply

Figure 3: EVK schematic - IOREF separation
+3V3 (J1 pin 4) can source max 50 mA to supply external parts.
IOREF (J1 pin 2) is the external supply input to the IO voltage level shifters (optional). It is separated from +3V3 with a protection diode (Maxim MAX40203AUK) having voltage drop of 28 mV at 100 mA.

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EVK-NORA-W1 - User guide
3.2 Reset
The EVK-NORA-W10 provides a hardware reset to the NORA-W10 module. The Reset button is connected to the module RESETn signal. If the BOOTn button is held down during the EVK power on, it causes the module to enter its bootloader mode.

Figure 4: EVK schematic - reset and boot buttons

Figure 5: Alternative BOOTn and RESET via UART-DTR and RTS

Signal name GPIO0/BOOTn
RESETn

Description
GPIO0 input to module interface during normal operation. Drive low during power-up to enter bootloader mode on NORA-W1 module.
NORA-W1 reset signal.

Table 1: EVK reset signals

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3.3 Buttons
The evaluation board has four user buttons that are active low and connect to ground when pressed. Table 2 associates the button number and corresponding components. The internal pull-up resistor of each NORA-W10 GPIO pin must be enabled for proper operation.

Button 1 2 3 4

Switch SW1 SW2 SW3 SW4

GPIO GPIO46 GPIO0 GPIO47 GPIO48

Table 2: User button components

Protection diode D21 D22 D23 D24

Figure 6: EVK schematic - user buttons

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EVK-NORA-W1 - User guide
3.4 LEDs
A RGB LED is provided on the evaluation board. It is powered by +3V3 and turned on by pulling the associated GPIO low. The RGB LED can be disconnected from the GPIO by removing the associated resistor R78 R79. The evaluation board is also equipped with LEDs that shows the signal status of UART0

RGB LED

Associated GPIO

Red (pin1) GPIO5/ADC1-CH4

Green (pin2) GPIO2/ADC-CH1

Blue (pin3) GPIO8/ADC1-CH7

Table 3: RGB LED associated signals

Comments Remove R77 to disconnect R-LED Remove R78 to disconnect G-LED Remove R79 to disconnect B-LED

RGB-LED

UART0 status LED

Figure 7 Schematic RGB and power LED

Figure 8 Schematic UART0 status LEDs

Table 4: UART0 LEDs associated signals

LED D4 D5 D6 D7 D8 D9 D10

LED color Green Orange Green Orange Green Orange Green

GPIO GPIO43/UART0-TxD GPIO44/UART0-RxD GPIO45/UART0-RTS GPIO6/UART0-CTS GPIO1/UART0-DTR GPIO7/UART0-DSR -

Pin socket J3-7 J3-8 J5-1 J5-2 J5-3 J5-4

Comments Power ON LED

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3.5 Serial communication
The evaluation board allows for easy serial communication with the NORA-W10 module and a connected computer. The EVK is using a single FTDI interface IC providing one COM port. · The single port is connected to module UART0 through 1K resistors. This allows for simultaneously
connecting UART0 signals to pin sockets J3 and J5. See also Table 5.

NORA-W1 pin name G9 G8 F9 F8 E9 E8

NORA-W1 function GPIO44/UART0-RxD GPIO43/UART0-TxD GPIO6/UART0-CTS GPIO45/UART0-RTS GPIO7/UART0-DSR GPIO1/UART0-DTR

Table 5: COM port connections

Resistor/Jumper enable R20 R22 R23 R29 R30 R32

Interface IC function FTDI-TxD FTDI-RxD FTDI-RTS FTDI-CTS FTDI-DTR FTDI-DSR

Figure 9: UART0 level shifters and pin socket

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Figure 10: The FTDI drawing, 1 port default
3.6 32.768 kHz low frequency clock
The evaluation board has a 32.768 kHz crystal connected to the NORA-W10 module to allow use of the external crystal oscillator option If the signals GPIO15/ADC2-CH4 and GPIO16/ADC2-CH5 want to be used, the crystal can be removed from the circuit by opening jumpers J19 and J21 and soldering across the normally open positions. This connects XT-32k-p and XT-32k-n to the EVK pin socket J2 pin 5 and pin 6.
Figure 11: Schematic 32 kHz crystal

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EVK-NORA-W1 - User guide
3.7 Current sensing headers
The evaluation board provides two current sensing headers:
· J7 allows for power consumption measurement of the NORA-W10 module VDD supply. · J8 allows for power consumption measurement of the NORA-W10 module VDD-IO supply.
Each of the 2.54 mm pitch 3-pin header have two pins connected across a 1 current-sense resistor and the third pin connected to GND. Module VDD supply and module VDD-IO supply is sourced via these resistors. To measure current consumption, use a multimeter or other precision voltage measurement device to measure voltage drop across pins 2 and 3. Current can also be measured directly by opening JRMOD, or JRIO to remove the current-sense resistor from the circuit. Use an amp meter in series with the two voltage pins.
Pin 1 of J7, J8 is connected to GND.
Any current sense resistor can be bypassed by soldering the respective jumper: JMOD, or JIO. The default hardware configuration does not require any modification of the current sense headers for the EVK-NORA-W10 to perform properly.

Figure 12: Current sensing header layout

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3.8 External JTAG debug interface
External target hardware can be connected to J20 for firmware programming and debug. The JTAG debug interface is implemented, as shown in Figure 13. J20 is implemented with a 2x5, header with 1.27 mm pitch.

Figure 13: External J-Link debug interface

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EVK-NORA-W1 - User guide
3.9 QSPI
EVK-NORA-W10 can be populated with a Quad SPI FLASH and a Quad SPI PSRAM. These can be supplied via +3V3 or NORA-W10 module internal VDD-SPI supply. The selection between the two are made by populating either R11 or R69 (U1) and R70 or R71 (U2).

Figure 14: Quad SPI FLASH and PSRAM EVK - schematic and EVK board view

Table 6: Quad SPI interface signal overview

Interface function QSPI-CS0 QSPI-CS1 QSPI-CLK QSPI-IO3 HD QSPI-IO2 WP QSPI-IO1 Q QSPI-IO0 D

ESP32-S3 pin 28 32 33 30 31 34 35

NORA-W10 pin E1 C4 F1 F2 D1 E2 D2

Interface IC function

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3.10 GPIO jumpers
Several solder bridge jumpers on the board are available to configure the GPIO functions. Most solder jumpers disconnect on-board components from the GPIO nets thus eliminate interference with external circuitry added on the I/O sockets (female). The GPIO jumpers and associated functions are shown on the bottom of the EVK-NORA-W10 PCB.

Figure 15: Legend for GPIO jumpers

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3.11 Header pin-out
Figure 14 shows the 2.54 mm pitch sockets exposing the IO signals in the NORA-W10 module.

GPIO0 GPIO21 NC . GN D GPIO36 GPIO37 GPIO35 GPIO34 GPIO38 GPIO33 GPIO10 GPIO14 GPIO2 GPIO3 GPIO4 GPIO46 TxD RxD GPIO45 GPIO6 GPIO1 GPIO7 GPI047 GPIO48 GPIO18 GPIO17

LED4:TxD LED5:RxD LED6:RTS LED7:CTS LED8:DTR LED9:DSR

GPIO39 GPIO40 GPIO41 GPIO42

GPIO8 GPIO9

RGB LED RF-port

POWER SW6 POWER LED D10

BTN1:GPIO46 BTN2:GPIO0 BTN3:GPIO47 BTN4:GPIO48

RESET BTN NC .
IOREF RESET
+3V3 VBUS
GN D GN D +Vin GPIO11 GPIO12 GPIO13 GPIO5 GPIO15 GPIO16

Color code Not connected
Pin-1 indicator IO-signals LEDs Buttons and switches Supply voltage Ground connection
Figure 16: EVK-NORA-W10 IO connectors pin-out, buttons and LEDs
To enable the EVK-NORA-W10 I/O pins to handle 5 V signals the level shifters (U102 U104, TI
TXS0108EPWR) must be populated and IOREF must be supplied with +5 V. If using 3.3 V on the EVK-NORA-W1 I/O pins, the Arduino Uno® style shields must be configured to use +3.3 V I/O voltage reference.

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EVK-NORA-W1 - User guide Table 7: Header J1Table 7 - Table 12 show the pin assignments of each header.

Pin 1 2 3 4 5 6 7 8 Table 7: Header J1
Pin 1 2 3 4 5 6 Table 8: Header J2
Pin 1 2 3 4 5 6 7 8 Table 9: Header J3

Pin name NC. IOREF RESET +3V3 VBUS GND GND +Vin
Pin name GPIO11 GPIO12 GPIO13 GPIO5 GPIO15 GPIO16
Pin name GPIO10 GPIO14 GPIO2 GPIO3 GPIO4 GPIO46 TxD RxD

NORA-W1 pin J3

Function No connection Level shifter supply voltage ESP-GPIO/AIN6 Supply Supply Ground Ground Supply

NORA-W1 pin PT1/PT2 G3 G2 A6 J8 C6 B6

Function GPIO ADC2-CH0 GPIO ADC2-CH1 GPIO ADC2-CH2 GPIO ADC1-CH4 GPIO ADC2-CH4, XTAL-32K-P GPIO ADC2-CH5, XTAL-32K-N

NORA-W1 pin H3 A5 H8 J9 D8 H7 G8 G9

Function FSPI-IO4 FSPI-DQS ADC1-CH1 ADC-CH2 ADC1-CH3 GPIO46 GPIO43 GPIO44

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Pin 1 2 3 4 5 6 7 8 9 10
Table 10: Header J4

Pin name GPIO0 GPIO21 NC. GND GPIO36 GPIO37 GPIO35 GPIO34 GPIO38 GPIO33

Pin 1 2 3 4 5 6 7 8 Table 11: Header J5
Pin 1 2 3 4 5 6 7 8 9 10 Table 12: Header J20

Pin name GPIO45 GPIO6 GPIO1 GPIO7 GPIO47 GPIO48 GPIO18 GPIO17
Pin name +3V3 JTAG-TMS GND JTAG-TCK GND JTAG-TDO NC. JTAG-TDI GND RESET

NORA-W1 pin F7 C8 B1 C1 C2 B3 A2 D3

EVK-NORA-W1 - User guide
Function BOOTn GPIO21
FSPI-CLK FSPI-Q FSPI-D FSPI-CS0 FSPI-WP FSPIHD

NORA-W1 pin F8 F9 E8 E9 F3 E3 B4 A3
NORA-W1 pin H2 J2 G1 H1 J3

Function RTS CTS DTR DSR SPICLK_P SPICLK_N SDA SCL
Function Supply GPIO42 if J15 is changed Ground GPIO-39 if J16 is changed Ground GPIO40 if J17 is changed No connection GPIO41 if J18 is changed Ground Module reset

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Appendix

A Glossary

Abbreviation ARM CPU CTS DC DC-DC DFU EVK FICR GPIO LDO LE LED LF LiPo NCS NFC QSPI RC RTS RXD SES SIG SoC SPI TXD UICR USB

Definition Arm (Advanced RISC Machines) Holdings Central Processing Unit Clear To Send Direct Current DC to DC converter Device Firmware Update Evaluation Kit Factory Information Configuration Register General Purpose Input / Output Low Drop-Out voltage regulator Low Energy Light Emitting Diode Low Frequency Lithium-Polymer battery nRF Connect SDK Near-Field Communications Quad Serial Peripheral Interface Resistor-Capacitor network Request To Send Receive data signal SEGGER Embedded Studio Special Interest Group System on Chip Serial Peripheral Interface Transmit data signal User Information Configuration Register Universal Serial Bus

Table 13: Explanation of the abbreviations and terms used

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Appendix

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Related documentation
[1] NORA-W10 data sheet, UBX-21036702 [2] NORA-W10 system integration manual, UBX-22005601 [3] FTDI FT231XQ-R Datasheet, FT231X (ftdichip.com)
For product change notifications and regular updates of u-blox documentation, register on our
website, www.u-blox.com.

Revision history

Revision R01

Date 29-04-2022

Name ovik, hekf

Comments Initial release for EVK-NORA-W1 PT2

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References

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