This is the continuation of the other thread about MG24 boards
What would be the missing steps to add to the list?
Can we start with the assumption that Simplicity Studio 5 has been installed along with the relevant SiSDK (currently 2025.6.1)?
Or despite Simplicity Studio 6 being in Beta work with that? It supports VSCode as well… (Same SiSDK).
“We” can then build out the necessary steps to build a Matter device, viz Light, starting with “internal” bootloader and later using the “external” (SPI flash) bootloader for OTA?
Yes. Yes, I have it on my PC
OK
I will be building a Matter Light App (Internal Bootloader) for XIAO MG24 using Simplicity Studio 5 and SiSDK 2025.6.1.
Step 1.
Select the Launcher tab.
Step 2 & 3.
Add the XIAO MG24 chip (EFR32MG24B220F1536IM48) to the “My Products” section of Simplicity Studio.
Step 4.
Select Example Projects and Demos.
Step 5.
Filter on “light”
Step 6.
Select “Matter”
Step 7.
Select Matter - SoC Lighting over Thread with Internal Bootloader and click “Create”.
Final Step.
Select suitable names for Workspace, Bootloader and main Project (eg XIAO_MG24_MatterLight).
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Adding some project details.
Step 1.
Once the project has been created, select the “Software Components” tab.
Step 2.
Filter on “Configurable” and “Installed”
Step3.
Select Platform → Driver → Led → Simple LED->inst0.
Step 4.
Click “Configure”.
Step 5.
Select “Active Low” polarity and PA07 as “Selected Module” then click X (Close).
Step 6.
Select the UART EUSART → vcom instance and click “Configure”.
Step 7.
Set the vcom settings as below… and click X.
Step 8.
In the “Project Explorer” select the project and Right Click → Build Project (or Click the “Hammer” button in the menu bar).
The project should build without errors.
Additional Settings for XIAO MG24.
Step 1.
Deselect “Installed” checkbox. (We’re adding new “components”).
Step 2.
Filter on “gpio”.
Step 3.
Select GPIO Init (from Platform->Peripheral->EMLIB->Init).
Step 4.
Click “Install”.
Step 5.
Choose and “Instance Name” - eg RF_PWR.
Step 6.
Click “Configure”.
(If the “No Entry” sign appears over the “Configure” button, wait a little bit…)
Step 7.
RF_PWR
- Pin Mode - stays the same.
- DOUT - 1
- Selected Module is PB05
X = Close.
Repeat this by clicking “+ Add New Instance” for…
- The RF_SW - Pin Mode (Same), DOUT (0), Selected Module (PB04).
- Any other GPIO required (or skip for now).
Build the project.
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Programming and Debugging.
There are two options available for programming and debugging the XIAO MG24 projects.
- Via built in SWD via OpenOCD.
- Using the SWD pads and a Segger JLink (compatible) debugger.
Option 1.
Quite involved - will tackle this later.
Option 2.
Either solder SWD connections to the XIAO MG24 or use the Expansion Board to connect SWD to the device.
Only GND, SWDIO and SWCLK are required.
Select the “bootloader” project and build the project.
In the “Binaries” folder of the bootloader project, select the “hex” file and Right Click → Flash to Device.
Select your JLink connected to the XIAO MG24 and click OK.
Erase and Program the device.
Select the “light” project and click the “Debug” symbol on the menu bar (or Right Click → Debug As → 1 Silicon Labs ARM Program.
Select the JLink and click OK.
The Debug perspective will be opened and the code set at “sl_main_second_stage_init();” function.
Connect a Serial Terminal (eg PuTTY) to the XIAO MG24 serial port.
Click the run button to start the debugger.
The following messages are sent…
[00:00:00.125][info ][DL] Starting scheduler
[00:00:00.125][info ][DL] ==================================================
[00:00:00.126][info ][DL] SL-Light starting
[00:00:00.126][info ][DL] ==================================================
[00:00:00.126][info ][DL] Init CHIP Stack
[00:00:00.131][info ][DL] Setting device name to : "SL-Light"
[00:00:00.132][info ][DL] Provision mode disabled
[00:00:00.132][info ][DL] Initializing OpenThread stack
[00:00:00.133][info ][DL] OpenThread started: OK
[00:00:00.134][info ][DL] Setting OpenThread device type to ROUTER
[00:00:00.134][info ][DL] Starting OpenThread task
[00:00:00.135][info ][SVR] Initializing subscription resumption storage...
[00:00:00.137][info ][SVR] Server initializing...
[00:00:00.137][detail][FP] Initializing FabricTable from persistent storage
[00:00:00.138][info ][TS] Last Known Good Time: [unknown]
[00:00:00.138][info ][TS] Setting Last Known Good Time to firmware build time 2 023-10-10T16:28:52
[00:00:00.140][info ][DMG] AccessControl: initializing
[00:00:00.141][info ][DMG] Examples::AccessControlDelegate::Init
[00:00:00.141][info ][DMG] AccessControl: setting
[00:00:00.141][info ][DMG] DefaultAclStorage: initializing
[00:00:00.142][info ][DMG] DefaultAclStorage: 0 entries loaded
[00:00:00.142][info ][SVR] WARNING: mTestEventTriggerDelegate is null
[00:00:00.142][detail][IN] UDP::Init bind&listen port=5540
[00:00:00.143][detail][IN] UDP::Init bound to port=5540
[00:00:00.143][detail][IN] BLEBase::Init - setting/overriding transport
[00:00:00.143][detail][IN] TransportMgr initialized
[00:00:00.148][detail][DL] Using Thread extended MAC for hostname.
[00:00:00.150][info ][ZCL] Using ZAP configuration...
[00:00:00.151][detail][DMG] Failed to read stored attribute (0, 0x0000_0028, 0x0 000_0005: a0
[00:00:00.152][detail][DMG] Failed to read stored attribute (0, 0x0000_0028, 0x0 000_0010: a0
[00:00:00.154][detail][DMG] Failed to read stored attribute (1, 0x0000_0006, 0x0 000_0000: a0
[00:00:00.155][detail][DMG] Failed to read stored attribute (1, 0x0000_0006, 0x0 000_4003: a0
[00:00:00.156][detail][DMG] Failed to read stored attribute (1, 0x0000_0008, 0x0 000_0000: a0
[00:00:00.157][detail][DMG] Failed to read stored attribute (1, 0x0000_0008, 0x0 000_4000: a0
[00:00:00.158][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_0000: a0
[00:00:00.159][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_0001: a0
[00:00:00.160][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_0003: a0
[00:00:00.161][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_0004: a0
[00:00:00.162][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_0007: a0
[00:00:00.163][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_0008: a0
[00:00:00.164][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_4000: a0
[00:00:00.165][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_4001: a0
[00:00:00.166][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_4002: a0
[00:00:00.166][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_4003: a0
[00:00:00.166][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_4004: a0
[00:00:00.168][detail][DMG] Failed to read stored attribute (1, 0x0000_0300, 0x0 000_4010: a0
[00:00:00.168][info ][DMG] AccessControlCluster: initializing
[00:00:00.168][detail][ZCL] GeneralDiagnostics: OnDeviceReboot
[00:00:00.169][detail][DMG] Endpoint 0, Cluster 0x0000_0033 update version to d3 5a9324
[00:00:00.169][detail][EVL] LogEvent event number: 0x0000000000000000 priority: 2, endpoint id: 0x0 cluster id: 0x0000_0033 event id: 0x3 Epoch timestamp: 0x00 0000DC6ACFAC28
[00:00:00.170][info ][ZCL] Initiating Admin Commissioning cluster.
[00:00:00.170][detail][DMG] Endpoint 1, Cluster 0x0000_0003 update version to e2 afd74a
[00:00:00.171][info ][ZCL] Cluster callback: 0x0000_0003
[00:00:00.171][info ][ZCL] Identify attribute ID: 0x0000_0001 Type: 48 Value: 2 , length 1
[00:00:00.172][detail][DMG] Endpoint 1, Cluster 0x0000_0004 update version to b8 d0002f
[00:00:00.172][info ][ZCL] Cluster callback: 0x0000_0004
[00:00:00.172][detail][DMG] Endpoint 1, Cluster 0x0000_0004 update version to b8 d00030
[00:00:00.173][info ][ZCL] Cluster callback: 0x0000_0004
[00:00:00.173][info ][ZCL] Endpoint 1 On/off already set to new value
[00:00:00.174][detail][DMG] Endpoint 1, Cluster 0x0000_0008 update version to c2 cfaab
[00:00:00.174][detail][DMG] Endpoint 1, Cluster 0x0000_0062 update version to fa bd4a
[00:00:00.174][info ][ZCL] Cluster callback: 0x0000_0062
[00:00:00.175][detail][DMG] Endpoint 1, Cluster 0x0000_0300 update version to a3 af4a7b
[00:00:00.176][detail][DMG] Endpoint 1, Cluster 0x0000_0300 update version to a3 af4a7c
[00:00:00.177][info ][ZCL] Cluster callback: 0x0000_0300
[00:00:00.177][info ][ZCL] Color Control attribute ID: 0x0000_0008 Type: 48 Val ue: 2, length 1
[00:00:00.179][detail][DMG] Endpoint 1, Cluster 0x0000_0300 update version to a3 af4a7d
[00:00:00.179][info ][ZCL] Cluster callback: 0x0000_0300
[00:00:00.179][info ][ZCL] Color Control attribute ID: 0x0000_4001 Type: 48 Val ue: 2, length 1
[00:00:00.181][detail][IN] SecureSession[0x20007920]: Allocated Type:1 LSID:6300 5
[00:00:00.182][detail][SC] Assigned local session key ID 63005
[00:00:00.182][detail][SC] Waiting for PBKDF param request
[00:00:00.182][info ][DIS] Updating services using commissioning mode 1
[00:00:00.183][error ][DIS] Failed to remove advertised services: 3
[00:00:00.183][detail][DL] Using Thread extended MAC for hostname.
[00:00:00.184][info ][DIS] Advertise commission parameter vendorID=65521 produc tID=32773 discriminator=3840/15 cm=1 cp=0
[00:00:00.184][error ][DIS] Failed to advertise commissionable node: 3
[00:00:00.184][error ][DIS] Failed to finalize service update: 3
[00:00:00.185][info ][DIS] Updating services using commissioning mode 1
[00:00:00.185][error ][DIS] Failed to remove advertised services: 3
[00:00:00.185][detail][DL] Using Thread extended MAC for hostname.
[00:00:00.186][info ][DIS] Advertise commission parameter vendorID=65521 produc tID=32773 discriminator=3840/15 cm=1 cp=0
[00:00:00.186][error ][DIS] Failed to advertise commissionable node: 3
[00:00:00.187][error ][DIS] Failed to finalize service update: 3
[00:00:00.187][info ][IN] CASE Server enabling CASE session setups
[00:00:00.188][detail][IN] SecureSession[0x200079f8]: Allocated Type:2 LSID:6300 6
[00:00:00.188][detail][SC] Allocated SecureSession (0x200079f8) - waiting for Si gma1 msg
[00:00:00.188][detail][ZCL] Emitting StartUp event
[00:00:00.189][detail][EVL] LogEvent event number: 0x0000000000000001 priority: 2, endpoint id: 0x0 cluster id: 0x0000_0028 event id: 0x0 Epoch timestamp: 0x00 0000DC6ACFAC3B
[00:00:00.189][info ][SVR] Server Listening...
[00:00:00.190][silabs ]Starting Platform Manager Event Loop
[00:00:00.192][info ][DL] Starting App Task
[00:00:00.475][info ][DL] Bluetooth stack booted: v10.1.0-b0
[00:00:00.475][info ][DL] RAIL version:, v2.19.1-b0
[00:00:00.476][detail][DL] CHIP event task running
[00:00:00.476][detail][DL] Start BLE advertisement
[00:00:00.477][detail][DL] BLE Static Device Address DF:4D:F2:55:30:71
[00:00:00.478][info ][DL] Starting advertising with interval_min=32, intverval_ max=96 (units of 625us)
[00:00:00.480][info ][DL] _OnPlatformEvent default: event->Type = 32781
[00:00:00.481][info ][DL] _OnPlatformEvent default: event->Type = 32779
[00:00:00.482][detail][DL] OpenThread State Changed (Flags: 0x00038210)
[00:00:00.483][detail][DL] Network Name: OpenThread
[00:00:00.483][detail][DL] PAN Id: 0xFFFF
[00:00:00.483][detail][DL] Extended PAN Id: 0xDEAD00BEEF00CAFE
[00:00:00.484][detail][DL] Channel: 11
[00:00:00.484][detail][DL] Mesh Prefix: fdde:ad00:beef:0:0:0:0:0/64
[00:00:00.485][info ][SVR] Current Software Version String: 1
[00:00:00.485][info ][SVR] Current Software Version: 1
[00:00:00.485][info ][DL] Device Configuration:
[00:00:00.486][info ][DL] Serial Number: (not set)
[00:00:00.486][info ][DL] Vendor Id: 65521 (0xFFF1)
[00:00:00.487][info ][DL] Product Id: 32773 (0x8005)
[00:00:00.487][info ][DL] Product Name: SL_Sample
[00:00:00.488][info ][DL] Hardware Version: 1
[00:00:00.488][info ][DL] Setup Pin Code (0 for UNKNOWN/ERROR): 0
[00:00:00.488][info ][DL] Setup Discriminator (0xFFFF for UNKNOWN/ERROR): 384 0 (0xF00)
[00:00:00.489][info ][DL] Manufacturing Date: (not set)
[00:00:00.489][info ][DL] Device Type: 65535 (0xFFFF)
[00:00:00.490][info ][SVR] SetupQRCode: [MT:6FCJ142C00KA0648G00]
[00:00:00.490][info ][SVR] Copy/paste the below URL in a browser to see the QR Code:
[00:00:00.490][info ][SVR] https://project-chip.github.io/connectedhomeip/qrcod e.html?data=MT%3A6FCJ142C00KA0648G00
[00:00:00.491][info ][ZCL] On/Off ep1 value: 0
[00:00:00.491][silabs ]App Task started
matterCli> [00:00:30.481][info ][DL] Starting advertising with interval_min=240, intverval_max=1920 (units of 625us)
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Connecting to the Matter fabric (network).
From the matterCLI messages select the QRCode URL.
https://project-chip.github.io/connectedhomeip/qrcode.html?data=MT%3A6FCJ142C00KA0648G00
Get the QRCode and using your mobile phone and a suitable Matter device, add your new XIAO MG24 Light to your Matter network.
The XIAO MG24 On-Board LED will be affected by the Matter Device On/Off changes.
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Thanks a lot man @grobasoz.
Just a little thing. There is a typo here. It should be EFR32MG24B220F1536IM48 like describe here, right?
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Thanks for that - Fixed the typo 
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Building light project seems OK:
Building target: XIAO_MG24_MatterLightOverThread.axf
Invoking: GNU ARM C++ Linker
arm-none-eabi-g++ '@XIAO_MG24_MatterLightOverThread.axf.rsp' -o XIAO_MG24_MatterLightOverThread.axf
Finished building target: XIAO_MG24_MatterLightOverThread.axf
Building out file: XIAO_MG24_MatterLightOverThread.out
arm-none-eabi-objcopy "XIAO_MG24_MatterLightOverThread.axf" "XIAO_MG24_MatterLightOverThread.out"
Building hex file: XIAO_MG24_MatterLightOverThread.hex
arm-none-eabi-objcopy -O ihex "XIAO_MG24_MatterLightOverThread.axf" "XIAO_MG24_MatterLightOverThread.hex"
Building bin file: XIAO_MG24_MatterLightOverThread.bin
arm-none-eabi-objcopy -O binary "XIAO_MG24_MatterLightOverThread.axf" "XIAO_MG24_MatterLightOverThread.bin"
Building s37 file: XIAO_MG24_MatterLightOverThread.s37
arm-none-eabi-objcopy -O srec "XIAO_MG24_MatterLightOverThread.axf" "XIAO_MG24_MatterLightOverThread.s37"
Running size tool
arm-none-eabi-size "XIAO_MG24_MatterLightOverThread.axf" -A
XIAO_MG24_MatterLightOverThread.axf :
section size addr
.text 894872 134242304
.ARM.exidx 8 135137176
.copy.table 12 135137184
.zero.table 0 135137196
.stack 4608 536870912
.data 5780 536875520
.bss 187976 536881300
text_application_ram 0 537069276
.heap 2048 537069280
.nvm 40960 135137196
.ARM.attributes 54 0
.comment 69 0
.debug_line_str 2820 0
.debug_info 55057748 0
.debug_abbrev 1847527 0
.debug_aranges 154464 0
.debug_line 4570248 0
.debug_str 6072923 0
.debug_loc 4698248 0
.debug_ranges 572752 0
.debug_frame 505252 0
.debug_loclists 97132 0
.debug_rnglists 25084 0
Total 74740585
So if I want to add a Button,do I have to install “Simple Button” like this and define the GPIO?
I am not sure about the mode:
You can use the “interrupt” mode.
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