GW-USB-05
FW v1.03
IQRF USB Gateway
User's Guide
© 2013 MICRORISC s.r.o.
www.iqrf.org
MNGWUSB05_130220 Page 1
GW-USB-05
Description
GW-USB-05 is an IQRF gateway with USB connectivity. It is intended as an interface between IQRF network and PC or similar devices with USB.
The user can realize specific functionality by software for internal TR module.
Applications
• IQRF – PC interface
• IQRF gateway
• Diagnostic tool
• Wireless programmer (RFPGM) for TR modules
Key features
• PC connectivity via USB interface
• 2 USB classes (Custom device and CDC)
• TR module and internal antenna, bidirectional RF
• TR module programming via USB and IQRF IDE
• RTCC (real-time clock/calendar) *
• 3 LEDs
• Compact USB-stick style
• Bootloader for firmware upgrade
Block diagram
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GW-USB-05
Electrical specifications
Power supply
(typical values unless otherwise stated)
5.0 V supplied from USB
USB V2.0 Compliant SIE
Supply current (TR in Sleep mode) 14 mA
Aditional supply current due to TR module 1 mA (TR in Run mode) up to 24 mA (TX mode, max. output power)
Temperature range 0 °C to +70 °C
TR module
Antenna
Frequency band
TR-52D compatible, without temperature sensor
Built-in PCB
868 MHz / 916 MHz, SW selectable
RF output power Up to 3.5 mW, programmable
Dimensions
Weight
59.3 mm x 23.5 mm x 12.3 mm (including the cover)
12 g (including the cover)
Absolute maximum ratings
Stresses above those values may cause permanent damage to the device. Exposure to maximum rating conditions for extended periods may affect device reliability.
Supply voltage (VCC)
Storage temperature
5.5 V
-40 °C to +85 °C
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MNGWUSB04_ 130220 Page 3
GW-USB-05
Hardware
GW-USB-05 consists of main MCU, memories and the TR-52D compatible circuitry with RTCC added. Firmware of the main MCU is fixed. Specific functionality of the device can be implemented by user software for the TR module.
Application for TR module inside (except of RTCC usage) can also be developed using the CK-USB-04 development kit. For detailed information refer to CK-USB-04 User's guide.
Power supply
GW-USB-05 is intended to be supplied from a host via USB connector. LDO voltage regulator converts 5 V from USB to 3.3 V for all internal circuitry. RTCC has a temporary backup by decoupling capacitors, see below.
Reset
Reset can be invoked by connecting a disconnected GW-USB-05 to USB or by the Reset USB Device command in
CDC mode. Actual reset is executed ~5 s after the command is issued. This delay allows to disconnect USB communication on host side in time. See the user's guide CDC Implementation in IQRF USB devices.
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USB
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The device supports two USB modes:
Custom Device mode
Full communication with the IQRF IDE is enabled in this mode. The GW uses identical USB driver like e.g. CK-
USB-04. It is possible to upload the application into internal TR module, display data received from SPI interface of the TR in IQRF IDE Terminal etc. The user can easily create his own PC program using the mpusbapi.dll library. See USB Custom Device Example on IQRF website.
CDC mode
After connecting to PC a virtual serial port is created in this mode. The user can create his own PC program and communicate via this port using the protocol described in document CDC implementation in IQRF platform.
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Switching between the modes:
From Custom Device to CDC:
Using IQRF IDE 4 or higher:
Tools → USB Classes → Switch to CDC mode.
• From CDC to Custom Device:
Using IQRF IDE 4 or higher:
Tools → USB Classes → Switch to Custom Device mode.
Using the Switch to USB Custom Class command in CDC protocol.
Current mode indication see chapter LED. The last selected mode is restored after start-up or reset.
Tip
For testing a communication in CDC mode various SW terminals operating with PC serial ports are available. Select a terminal enabling to issue direct byte commands and data. Refer to the communication protocol described in CDC
Implementation in IQRF USB devices User's guide.
Recommended terminal: Docklight, www.docklight.de. There is a project containing all supported commands for this terminal available at www.iqrf.org/218. It is necessary just to select the COM port used.
Unsuitable terminal: Windows Hyperterminal, Tera Term.
TR module
Wireless IQRF transceiver module compatible with TR-52D, without temperature sensor. Refer to the TR-52D datasheet for details.
Antenna
PCB antenna on GW-USB-05 board.
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MNGWUSB04_ 130220 Page 4
GW-USB-05
RTCC
Real-time clock / calendar MCP7940NT by Microchip has the I2C serial bus shared with the EEPROM. It can be controlled from TR module. Decoupling capacitors ensure RTCC backup for 30 s after disconnecting power supply which allows to quickly replug the device from one host USB to another keeping the RTCC running.
RTCC is not supported at all in current version of firmware and demo user software.
Serial Flash memory
Flash memory 8 Mb with serial SPI interface is connected to main MCU. It is not supported in current firmware version, reserved for future use and optional on request.
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LEDs
Three LEDs inside the case are mainly intended for debug and service purposes.
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LED3 dedicated to the main MCU – red
LED3 flashes for 500 ms after reset.
LED3 flashing in 1 s period means CDC mode (Custom Device mode is without flashing).
LED3 flashes 3x after clicking the Check USB Device (F11) in respective IQRF IDE (to identify the device among other IQRF USB devices in case of multiple IQRF IDE instances).
LED3 flashing in 300 ms period means missing firmware (see Software below).
LEDs dedicated to TR module – LED1 (red) and LED2 (green).
Software
Firmware for the main MCU is fixed but can be upgraded by the user using the code provided by IQRF manufacturer.
Refer to IQRF Application note AN008 – Firmware upgrade for details.
TR module functionality is fully user programmable. Factory default is E03-TR (one of basic IQRF examples).
Programming and uploading the code is similar to the CK-USB-04 development kit.
Product information
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Pack list
GW-USB-05
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Ordering code
GW-USB-05
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Document history
130220
130125
USB gateway, with E03-TR example uploaded in TR module.
USB gateway (serial Flash memory included).
Serial Flash memory is a standard for GW-USB-05 but not an option.
First release.
© 2013 MICRORISC s.r.o.
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MNGWUSB04_ 130220 Page 5
Sales and Service
Corporate office
MICRORISC s.r.o., Delnicka 222, 506 01 Jicin, Czech Republic, EU
Tel: +420 493 538 125, Fax: +420 493 538 126, www.microrisc.com
Partners and distribution
Please visit www.iqrf.org/partners
GW-USB-05
Quality management
ISO 9001 : 2009 certified
Complies with Directive 2002/95/EC (RoHS)
Trademarks
The IQRF name and logo are registered trademarks of MICRORISC s.r.o.
PIC, SPI, Microchip, RFM and all other trademarks mentioned herein are property of their respective owners.
Legal
All information contained in this publication is intended through suggestion only and may be superseded by updates without prior notice. No representation or warranty is given and no liability is assumed by MICRORISC s.r.o. with respect to the accuracy or use of such information.
Without written permission it is not allowed to copy or reproduce this information, even partially.
No licenses are conveyed, implicitly or otherwise, under any intellectual property rights.
The IQRF products utilize several patents (CZ, EU, US)
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MNGWUSB04_ 130220 Page 6
