Miromico FMLR User manual
About this Document
Title FMLR Breakout Board
Subtitle High Performance LoRaWAN® Development Board
Document Type uickstart Guide
Revision 1.025
Date 22.11.19
Document Status Preliminary
Contents
1 Overview.................................................................................................................................................. 3
1.1 Connectors and UI................................................................................................................................ 3
1.2 Pinout.................................................................................................................................................... 4
2 Detailed Description................................................................................................................................. 5
2.1 Prerequisites.......................................................................................................................................... 5
2.2 Powering on the Device........................................................................................................................5
2.3 Programming the Device......................................................................................................................5
2.4 Programming by U B (UART)................................................................................................................ 6
2.5 Flashing Firmware with development tool............................................................................................6
2.6 Rebooting the Device........................................................................................................................... 6
2.7 Debugging the Device by U B (UART).................................................................................................6
We reserve the right to make technical changes, which serve to improve the product, without prior notification.
SAFETY-CRITICAL, MILITARY, AND AUTOMOTIVE APPLICATIONS DISCLAIMER: Miromico products are not designed for and
will not be used in connection with any applications where the failure of such products would reasonably be expected to result in
significant personal injury or death (“Safety-Critical Applications”) without an Miromico officer's specific written consent. Safety-
Critical Applications include, without limitation, life support devices and systems, equipment or systems for the operation of
nuclear facilities and weapons systems. Miromico products are not designed nor intended for use in military or aerospace
applications or environments. Miromico products are not designed nor intended for use in automotive applications unless
specifically designated by Miromico as automotive-grade.
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1 Overview
1.1 Connectors and UI
Function Description
FMLR Module FMLR Module
TAG Connect Programming Interface for Tag Connect and Miromico programing adaptor
For more information on the FMLR Module, please refer the the respective datasheets,
found on the Miromico website:
https://miromico.ch/wp-content/uploads/2018/12/FMLR_61_x_RSS3-3.pdf
https://miromico.ch/wp-content/uploads/2018/12/FMLR-72-x-32L0-2.pdf
Note:
This uickstart Guide is aimed at the FMLR-72-x-32L0-xx. Please inquire for information on other
modules.
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2 Detailed Description
This section will guide you through the initial setup of the FMLR Breakout Board.
2.1 Prerequisites
The FMLR Breakout Board needs some additional equipment before it can be used:
•FMLR Module
•Pin headers
•STLink V2
•FTDI-Cable
•Tag connect cable
•Interconnect board
•Soldering equipment
2.2 Prepare the Device
Before the FMLR Breakout Board can be properly used, some hardware preparations have
to be conducted.
First, an FMLR Module has to be soldered onto the breakout board. Use the prepared space
on the top of the board (see Overview) and make sure all the pins are connected, as shown
in the image below.
Next, the pin headers have to be soldered onto the FMLR Module. This enables the use of a
breadboard to connect to each pin individually.
arning:
Make sure no neighboring pins are accidentally connected and cause a short circuit!
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2.3 Debug Connection
In order to view the debugging output of the FMLR Module, you need a suitable terminal
application. We recommend YAT.
You can download the latest version from the YAT website:
https://sourceforge.net/projects/y-a-terminal/
1. Plug the FTDI cable into your computers USB port
2. Plug the FTDI cable into the interconnect board
3. Connect the TAG-connect cable to the interconnect board
4. Connect the TAG-connect to the FMLR Breakout Board
5. Start YAT
6. Start a new terminal (might happen on its own)
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7. Choose the right Port Name for your device (found in the device manager on
Windows, use “dmesg | grep tty” on Linux)
8. Ensure to set the baudrate, databits, parity and stopbits to the right values (see
screenshot below)
You should now be able to see the debug output of the FMLR Module as soon as you power
on the device and you can communicate with it via its AT command interface. See the
documentation of the respective module for more information.
Alternatively to using the TAG-connect adapter, you may use the DBGRX and DBGTX pins
to directly connect the device to a serial port.
2.4 Powering on the Device
To power on the FMLR Breakout Board, after connecting it to a computer via the
Interconnect board, you can simply connect the power pins of the Interconnect board and
press the reset button.
Alternatively, you can directly connect the 3V3 pin to a 3.3 V power source and at least one
of the GND pins to ground.
Note:
Ensure your power supply is capable of delivering at least 0.5A
2.5 Programming the Device
The FMLR Module can be programmed with a “ready-to-go” firmware (e.g. .hex-files) or by
uploading and debugging your own firmware.
For uploading existing firmware you need to use the “FLASHER-STM32” Software.
You can download the latest version from the STMicroelectronics website:
https://www.st.com/en/development-tools/flasher-stm32.html
For uploading and debugging your own firmware we recommend using TrueSTUDIO® for
STM32.
You can download the latest version from the Atollic website:
https://atollic.com/truestudio/
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2.6 Programming by UART
1. Connect your ST-Link V2 to the Interconnect board and your computer
2. Additionally connect everything as described in 2.3
3. Connect your power supply (3.3V, min. 0.5A) to the BM (Boot Mode) pin
4. Reset the device while the BM pin is connected (you can remove the connection
after resetting is done)
5. Start the «FLASHER-STM32” software as administrator
6. Set the right Port Name for your device
7. Press Next
8. You should see the following message when the tool recognizes the used ST-
Microcontroller on the Module
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9. Click Next in the next window that shows up and do not change any parameters
10. Check the “Download to device” option and select your .hex file you want to flash
onto the device
11. Check the “Erase necessary pages” option and click on “Next”
12. The flash progress is complete once the following message appears
2.7 Flashing Firmware with development tool
Please see the documentation for your specific software development tool.
2.8 Rebooting the Device
Reboot the device using the reset button on the Interconnect bard or by connecting your
power supply to the RES# pin.
Notes:
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