Silicon Laboratories Mighty Gecko MGM12P User Manual
V. 2/18
UG290: MGM12P Mighty Gecko Module
Wireless Starter Kit User's Guide
A Silicon Labs Wireless Starter Kit for the MGM12P Mighty Gecko
Mesh Networking Module for zigbee® and Thread is an excellent
starting point to get familiar with the device, and it provides all necessary tools for developing a Silicon Labs wireless application.
The Wireless Starter Kit Mainboard contains sensors and peripherals enabling easy
demonstration of the many capabilities of the MGM12P. An on-board J-Link debugger allows debugging of the attached radio board as well as providing a debug connection for
external hardware.
A plug-in Radio Board contains the reference design for the MGM12P itself, including the
RF section and device-specific hardware.
WSTK MAINBOARD FEATURES
• Ethernet and USB connectivity
• Advanced Energy Monitor
• Virtual COM Port
• Packet Trace Interface support
• SEGGER J-Link on-board debugger
• Supports debugging the attached radio
board or an external device
• Silicon Labs' Si7021 Relative Humidity
and Temperature sensor
• Ultra low power 128x128 pixel Memory
LCD
• User LEDs / Pushbuttons
• 20-pin 2.54 mm header for expansion
boards
• Breakout pads for direct access to all radio
I/O pins
• Power sources include USB and CR2032
coin cell battery.
BRD4304A RADIO BOARD FEATURES
• MGM12P12P32F1024GA Module
• 1024 kB Flash and 256 kB RAM
• 18 dBm output power
• -105 dBm sensitivity
• 8 Mbit low-power serial flash for over-theair upgrades.
Singel 3 | B-2550 Kontich | Belgium | Tel. +32 (0)3 458 30 33 | info@alcom.be | www.alcom.be
Rivium 1e straat 52 | 2909 LE Capelle aan den Ijssel | The Netherlands | Tel. +31 (0)10 288 25 00 | info@alcom.nl | www.alcom.nl
SOFTWARE SUPPORT
• Simplicity Studio™
• zigbee and Thread mesh networking
software
• Blue Gecko Bluetooth software
Table of Contents
1. Introduction ................................4
1.1 Radio Boards ..............................4
1.2 Ordering Information ...........................4
1.3 Getting Started .............................4
2. Hardware Overview .............................5
2.1 Hardware Layout .............................5
2.2 Block Diagram..............................6
3. Connectors ................................7
3.1 J-Link USB Connector ...........................7
3.2 Ethernet Connector ............................7
3.3 Breakout Pads .............................8
3.4 Expansion Header ............................8
3.4.1 Expansion Header Pin-out .......................9
3.5 Debug Connector.............................10
3.6 Simplicity Connector............................11
3.7 Debug Adapter .............................12
4. Power Supply and Reset .......................... 13
4.1 Radio Board Power Selection ........................13
4.2 Board Controller Power...........................14
4.3 MGM12P Reset .............................14
5. Peripherals ............................... 15
5.1 Push Buttons and LEDs ..........................15
5.2 Memory LCD-TFT Display..........................16
5.3 Serial Flash ..............................17
5.4 Si7021 Relative Humidity and Temperature Sensor .................18
5.5 Virtual COM Port .............................19
6. Board Controller ............................. 20
6.1 Admin Console .............................20
6.1.1 Connecting .............................20
6.1.2 Built-in Help ............................20
6.1.3 Command Examples .........................21
6.2 Virtual UART ..............................21
7. Advanced Energy Monitor ......................... 22
7.1 Introduction...............................22
7.2 Theory of Operation ............................22
7.3 AEM Accuracy and Performance .......................23
silabs.com
| Building a more connected world. Rev. 1.00 | 2
7.4 Usage ................................23
8. On-Board Debugger ............................ 24
8.1 Host Interfaces .............................24
8.1.1 USB Interface ............................24
8.1.2 Ethernet Interface ..........................24
8.1.3 Serial Number Identification .......................24
8.2 Debug Modes ..............................25
8.3 Debugging During Battery Operation ......................26
9. Kit Configuration and Upgrades ....................... 27
9.1 Firmware Upgrades ............................27
10. Mechanical Details ............................ 28
11. Schematics, Assembly Drawings and BOM................... 29
12. Radio Board Revision History and Errata ................... 30
12.1 BRD4304A Revision History ........................30
12.2 BRD4304A Errata ............................30
13. Kit Revision History ........................... 31
13.1 SLWRB4304A Revision history........................31
14. Document Revision History ........................ 32
silabs.com
| Building a more connected world. Rev. 1.00 | 3
UG290: MGM12P Mighty Gecko Module Wireless Starter Kit User's Guide
Introduction
1. Introduction
The MGM12P Mighty Gecko Module itself is featured on a Radio Board that forms a complete reference design, inluding the RF section
and other components.
The Radio Board plugs directly into a Wireless Starter Kit Mainboard. The Mainboard features several tools for easy evaluation and
development of wireless applications. An on-board J-Link debugger enables programming and debugging on the target device over
USB or Ethernet. The Advanced Energy Monitor (AEM) offers real-time current and voltage monitoring. A virtual COM port interface
(VCOM) provides an easy-to-use serial port connection over USB or Ethernet. The Packet Trace Interface (PTI) offers invaluable debug
information about transmitted and received packets in wireless links.
All debug functionality, including AEM, VCOM and PTI, can also be used towards external target hardware instead of the attached radio
board.
To further enhance its usability, the Mainboard contains sensors and peripherals demonstrating some of the many capabilities of the
MGM12P.
1.1 Radio Boards
A Wireless Starter Kit consists of one or more mainboards and radio boards that plug into the mainboard. Different radio boards are
available. Each featuring different Silicon Labs devices with different operating frequency bands.
Since the mainboard is designed to work with all different radio boards, the actual pin mapping from a device pin to a mainboard feature
is done on the radio board. This means that each radio board has its own pin mapping to the Wireless Starter Kit features such as
buttons, LEDs, the display, the EXP header and the breakout pads. Because this pin mapping is different for every radio board, it is
important that the correct document be consulted which shows the kit features in context of the radio board plugged in.
This document explains how to use the Wireless Starter Kit when the MGM12P Mighty Gecko Mesh Networking Module Radio Board
(BRD4304A) is combined with a Mainboard. The combination of these two boards is hereby referred to as a Wireless Starter Kit (Wireless STK).
1.2 Ordering Information
BRD4304A can be obtained as a separate radio board, SLWRB4304A. The radio board is intended to be used together with a Wireless
STK Mainboard that can be obtained with any Silicon Labs Wireless Starter Kit.
Table 1.1. Ordering Information
Part Number Description Contents Notes
SLWRB4304A MGM12P Mighty Gecko Module Radio
Board
1.3 Getting Started
Detailed instructions for how to get started can be found on the Silicon Labs web pages:
http://www.silabs.com/start-efr32mg
1x BRD4304A MGM12P Mighty Gecko Mesh Networking Module Radio Board
silabs.com | Building a more connected world. Rev. 1.00 | 4
MGM12P
Module
Radio Board
Breakout pads
Breakout pads
1.28" Memory-LCD Display
Ultra-low power
128 x 128 pixel resolution
SPI interface
Ethernet RJ-45
J-Link Debugger
Virtual COM port
Packet Trace
Advanced Energy Monitoring
USB Mini-B
J-Link Debugger
Virtual COM port
Packet Trace
Advanced Energy Monitoring
Coin Cell Holder
CR2032 Battery
Power Select Switch
BAT / USB / AEM
2x User Push Buttons
2x User LEDs
Simplicity Connector
Virtual COM port
Packet Trace
Advanced Energy Monitoring
Debug Connector
ARM Coresight 19-pin
OUT: External targets
IN: External debug probes
Reset Button
Si7021
Relative Temperature &
Humidity Sensor
EXP Header
Expansion board connector
UG290: MGM12P Mighty Gecko Module Wireless Starter Kit User's Guide
Hardware Overview
2. Hardware Overview
2.1 Hardware Layout
The layout of the MGM12P Mighty Gecko Mesh Networking Module Wireless Starter Kit is shown in the figure below.
Figure 2.1. Kit Hardware Layout
silabs.com | Building a more connected world. Rev. 1.00 | 5
WSTK Mainboard
USB Mini-B
Connector
RJ-45 Ethernet
Connector
Debug
UART
Packet Trace
AEM
Debug
UART
ETM Trace
Packet Trace
AEM
Debug
UART
Packet Trace
AEM
Simplicity
Connector
Debug
Connector
Board
Controller
Multiplexer
OUT
IN
MCU
MGM12P
Mesh Module
GPI
O
EXP
Header
User Buttons
& LEDs
GPIO
128 x 128 pixel
Memory LCD
I2C
Si7021
Temperature
& Humidity
Sensor
SPI
8 Mbit
MX25R
Serial Flash
UG290: MGM12P Mighty Gecko Module Wireless Starter Kit User's Guide
Hardware Overview
2.2 Block Diagram
An overview of the MGM12P Mighty Gecko Mesh Networking Module Wireless Starter Kit is shown in the figure below.
silabs.com | Building a more connected world. Rev. 1.00 | 6
Figure 2.2. Kit Block Diagram
Simplicity
Connector
In/Out Debug
Header
GND
GND
5V
5V
P25
P24
P27
P26
P29
P28
P31
P30
P33
P32
P35
P34
P37
P36
P39
P38
P41
P40
P43
P42
P45
P44
GND
GND
NC
NC
Radio Board
Connectors
Expansion
Header
GND
GND
VMCU
VMCU
P1
P0
P3
P2
P5
P4
P7
P6
P9
P8
P11
P10
P13
P12
P15
P14
P17
P16
P19
P18
P21
P20
GND
GND
P23
P22
VRF
VRF
3V3
3V3
Ethernet
Connector
J-Link USB
Connector
UG290: MGM12P Mighty Gecko Module Wireless Starter Kit User's Guide
Connectors
3. Connectors
This chapter gives you an overview of the Wireless STK Mainboard connectivity. The placement of the connectors can be seen in the
figure below.
Figure 3.1. Mainboard Connector Layout
3.1 J-Link USB Connector
The J-Link USB connector is situated on the left side of the Wireless Starter Kit mainboard. Most of the kit's development features are
supported through this USB interface when connected to a host computer, including:
• Debugging and programming of the target device using the on-board J-Link debugger
• Communication with the target device over the virtual COM port using USB-CDC
• Accurate current profiling using the Advanced Energy Monitor
In addition to providing access to development features of the kit, this USB connector is also the main power source for the kit. USB 5V
from this connector powers the board controller and the Advanced Energy Monitor. It is recommended that the USB host be able to
supply at least 500 mA to this connector, although the actual current required will vary depending on the application.
3.2 Ethernet Connector
The Ethernet connector provides access to all of the Wireless Starter Kit's development features over TCP/IP. The Ethernet interface
provides some additional development features to the user. Supported features include:
• Debugging and programming of the target device using the on-board J-Link debugger
• Communication with the target device over the virtual COM port using TCP/IP socket 4901
• "VUART" communication with the target device over the debug SWD/SWO interface using TCP/IP socket 4900
• Accurate current profiling using the Advanced Energy Monitor
• Packet Trace interface supports real-time radio packet and network analysis
• The "Admin Console", a telnet console that gives access to advanced configuration options, using TCP/IP socket 4902
Please note that the Wireless Starter Kit cannot be powered using the Ethernet connector, so in order to use this interface, the USB
connector must be used to provide power to the board.
silabs.com | Building a more connected world. Rev. 1.00 | 7
GND
VMCU
P23 / PD15 / DISP_ENABLE / SENSOR_ENABLE
P21 / PD14 / DISP_SCS
P19 / PD13 / DISP_EXTCOMIN
P17 / NC
GND
P15 / NC
P13 / PC10 / EXP16 / I2C_SDA
P11 / PA1 / EXP14 / VCOM_RX
P9 / PA0 / EXP12 / VCOM_TX
P7 / PC9 / EXP10
P5 / PC8 / EXP8 / FLASH_SCLK / DISP_SCLK
P3 / PC7 / EXP6 / FLASH_MISO
P1 / PC6 / EXP4 / FLASH_MOSI / DISP_SI
GNDGND
5V5V
NCNC
P45 / NCNC / P44
P43 / NCNC / P42
P41 / NCNC / P40
3V33V3
P39 / NCNC / P38
P37 / PD15 / DISP_ENABLE / SENSOR_ENABLENC / P36
P35 / NCNC / P34
P33 / PF7 / BUTTON1_LED1NC / P32
P31 / PF6 / BUTTON0_LED0NC / P30
P29 / PF2 / DBG_TDO_SWONC / P28
P27 / PF1 / DBG_TMS_SWDIONC / P26
P25 / PF0 / DBG_TCK_SWCLKPTI_DATA / PB11 / P24
GNDGND
VRF
GND
VMCU
PTI_SYNC / PB13 / P22
VCOM_ENABLE / PA5 / P20
FLASH_SCS / PA4 / P18
NC / P16
GND
NC / P14
I2C_SCL / EXP15 / PC11 / P12
DBG_TDI / EXP13 / PF3 / P10
EXP11 / NC / P8
EXP9 / PF5 / P6
EXP7 / PF4 / P4
VCOM_RTS / EXP5 / PA3 / P2
VCOM_CTS / EXP3 / PA2 / P0
VRF
J101
J102
12
4
8
6
10
3
5
9
7
12
13
14
11
1516
17
18
20 19
VMCU
SPI_MOSI / PC6
SPI_MISO / PC7
SPI_SCK / PC8
SPI_CS / PC9
UART_TX / PA0
UART_RX / PA1
I2C_SDA / PC10
5V
3V3
GND
PA2 / GPIO
PA3 / GPIO
PF4 / GPIO
PF5 / GPIO
NC
PF3 / GPIO
PC11 / I2C_SCL
Board ID SDA
Board ID SCL
Reserved (Board Identification)
MGM12P I/O Pin
UG290: MGM12P Mighty Gecko Module Wireless Starter Kit User's Guide
Connectors
3.3 Breakout Pads
Most pins of the MGM12P are routed from the radio board to breakout pads at the top and bottom edges of the Wireless STK Mainboard. A 2.54 mm pitch pin header can be soldered on for easy access to the pins. The figure below shows you how the pins of the
MGM12P maps to the pin numbers printed on the breakout pads. To see the available functions on each, please refer to the
MGM12P32F1024GA-V2R Data Sheet.
Figure 3.2. Radio Board Pin Mapping on Breakout Pads
3.4 Expansion Header
On the right hand side of the Wireless STK Mainboard an angled 20-pin expansion header is provided to allow connection of peripherals or plugin boards. The connector contains a number of I/O pins that can be used with most of the MGM12P Mighty Gecko's features.
Additionally, the VMCU, 3V3 and 5V power rails are also exported.
The connector follows a standard which ensures that commonly used peripherals such as an SPI, a UART and an I2C bus are available
on fixed locations in the connector. The rest of the pins are used for general purpose IO. This allows the definition of expansion boards
that can plug into a number of different Silicon Labs Starter Kits.
The figure below shows the pin assignment of the expansion header. Because of limitations in the number of available GPIO pins,
some of the expansion header pins are shared with kit features.
silabs.com | Building a more connected world. Rev. 1.00 | 8
Figure 3.3. Expansion Header
UG290: MGM12P Mighty Gecko Module Wireless Starter Kit User's Guide
Connectors
3.4.1 Expansion Header Pin-out
The pin-routing on the MGM12P is very flexible, so most peripherals can be routed to any pin. However, many pins are shared between
the Expansion Header and other functions on the Wireless STK Mainboard. Table 3.1 Expansion Header Pinout on page 9 includes
an overview of the mainboard features that share pins with the Expansion Header.
Table 3.1. Expansion Header Pinout
Pin Connection EXP Header function Shared feature Peripheral mapping
20 3V3 Board controller supply
18 5V Board USB voltage
16 PC10 I2C_SDA SENSOR_I2C_SDA I2C0_SDA #15
14 PA1 UART_RX VCOM_RX USART0_RX #0
12 PA0 UART_TX VCOM_TX USART0_TX #0
10 PC9 SPI_CS USART1_CS #11
8 PC8 SPI_SCLK FLASH_SCLK, DISP_SCLK USART1_CLK #11
6 PC7 SPI_MISO FLASH_MISO USART1_RX #11
4 PC6 SPI_MOSI FLASH_MOSI, DISP_SI USART1_TX #11
2 VMCU MGM12P voltage domain, included in AEM measurements.
19 BOARD_ID_SDA Connected to Board Controller for identification of add-on boards.
17 BOARD_ID_SCL Connected to Board Controller for identification of add-on boards.
15 PC11 I2C_SCL SENSOR_I2C_SCL I2C0_SCL #15
13 PF3 GPIO DBG_TDI
11 NC
9 PF5 GPIO
7 PF4 GPIO
5 PA3 GPIO VCOM_RTS
3 PA2 GPIO VCOM_CTS
1 GND Ground
Note: Pin PF3 is used for DBG_TDI in JTAG mode only. When Serial Wire Debugging is used, PF3 can be used for other purposes.
silabs.com | Building a more connected world. Rev. 1.00 | 9
1 2
4
8
6
10
5
9
12
13 14
11
15 16
17 18
2019
TMS / SWDIO / C2D
TCK / SWCLK / C2CK
TDO / SWO
TDI / C2Dps
TRACECLK
TRACED0
TRACED1
TRACED2
TRACED3
RESET / C2CKps
GND
NC
NC
GND
GND
GND
7
GND
VTARGET
Cable Detect
NC
3
UG290: MGM12P Mighty Gecko Module Wireless Starter Kit User's Guide
Connectors
3.5 Debug Connector
The Debug Connector serves multiple purposes based on the "debug mode" setting which can be configured in Simplicity Studio. When
the debug mode is set to "Debug IN", the debug connector can be used to connect an external debugger to the MGM12P on the radio
board. When set to "Debug OUT", this connector allows the kit to be used as a debugger towards an external target. When set to "Debug MCU" (default), the connector is isolated from both the on-board debugger and the radio board target device.
Because this connector is electronically switched between the different operating modes, it can only be used when the Board Controller
is powered (i.e. J-Link USB cable connected). If debug access to the target device is required when the Board Controller is unpowered,
connect directly to the appropriate breakout pins.
The pinout of the connector follows that of the standard ARM Cortex Debug+ETM 19-pin connector. The pinout is described in detail
below. Even though the connector has support for both JTAG and ETM Trace, it does not necessarily mean that the kit or the on-board
target device supports this.
Figure 3.4. Debug Connector
Note: The pinout matches the pinout of an ARM Cortex Debug+ETM connector, but these are not fully compatible as pin 7 is physically
removed from the Cortex Debug+ETM connector. Some cables have a small plug that prevent them from being used when this pin is
present. If this is the case, remove the plug, or use a standard 2x10 1.27 mm straight cable instead.
Table 3.2. Debug Connector Pin Descriptions
Pin number(s) Function Description
1 VTARGET Target reference voltage. Used for shifting logical signal levels between target and
debugger.
2 TMS / SDWIO / C2D JTAG test mode select, Serial Wire data or C2 data
4 TCK / SWCLK / C2CK JTAG test clock, Serial Wire clock or C2 clock
6 TDO/SWO JTAG test data out or Serial Wire Output
8 TDI / C2Dps JTAG test data in, or C2D "pin sharing" function
10 RESET / C2CKps Target device reset, or C2CK "pin sharing" function
12 TRACECLK Not connected
14 TRACED0 Not connected
16 TRACED1 Not connected
18 TRACED2 Not connected
20 TRACED3 Not connected
9 Cable detect Connect to ground
11, 13 NC Not connected
3, 5, 15, 17, 19 GND Ground
silabs.com | Building a more connected world. Rev. 1.00 | 10
Loading...