Hello All,

i working on BGM13P32 chip.

I used mesh network with multiple repeater.

i have some Questions regarding mesh network :

Question 1: 

in some scenario any one repeater will go to out of range and my data can not reach at destination.

how will i know the mesh groups all nodes are connected or not.

Any event occurred when nodes are out of range ?

Question 2:

Sometime Range of nodes are vary is it possible in mesh ?

Question 3:

How will i extend the range between two nodes using Tx power 10dB?

Will i use "*gecko_cmd_le_gap_set_advertise_tx_power" Api for mesh TX power ?

Thanks in advanced 

   Mahipal

Dear sir

I created an empty project in Silicon Labs.

It uses:

- USART
- Bluetooth (GATT, scanning and advertising)
- ADC
- GPIO

I want to load this application using OTA. 

I can't create the GBL of the app because I don't find the batch to create the file.
I suppose that the problem is that I started  from an empty project. 

I used the batch create in a soc-empty example.
In this way I can only create  the full version beacuse I added the sl_app_properties definition to the source code.

What else should I need to add or importo in the project?

Hi,

There is a way to configure scan advertisements on a single channel?

I dont want to switch channels while scanning beacons.

Thank you!

Hi, 

I was playing around with Sensor client and Sensor server examples, Bluetooth Mesh SDK 1.7.0, I see that the server sensor node publish its status with some frequency. Which publish period is configured by default? Can we configure this frequency? 

Cadence setting controls that publish period. However, in the documention is said that cadence setting are not supported. 

If I am not wrong, in the previous versions sensor published its status after getting request from client node. There exists a publish period now?

Thanks for your time, 

Regards, 

Pablo

I am having a problem with the soft timer. It seems that is triggering continously. 

I have created an empty example for this part (BGM13S32F512GA) with custom board. And I just added the following lines to the example to create a 100ms signal:

case gecko_evt_system_boot_id:

        bootMessage(&(evt->data.evt_system_boot));
        printLog("boot event - starting advertising\r\n");

        /* Set advertising parameters. 100ms advertisement interval.
         * The first parameter is advertising set handle
         * The next two parameters are minimum and maximum advertising interval, both in
         * units of (milliseconds * 1.6).
         * The last two parameters are duration and maxevents left as default. */
        gecko_cmd_le_gap_set_advertise_timing(0, 160, 160, 0, 0);

        GPIO_PinModeSet(gpioPortD,15, gpioModePushPull, 1);
        gecko_cmd_hardware_set_soft_timer(3277,0,0);

        /* Start general advertising and enable connections. */
        gecko_cmd_le_gap_start_advertising(0, le_gap_general_discoverable, le_gap_connectable_scannable);
        break;

      case gecko_evt_hardware_soft_timer_id:
            if (evt->data.evt_hardware_soft_timer.handle == 0)
            {
                GPIO_PinOutToggle(gpioPortD,15);
            }
            break;

I have a LED in port D15. WIth this code the module seems to be blocked: the LED doesn't blink and I can't find the device searching with a smart phone. Then I tried to use one shot timer:

case gecko_evt_system_boot_id:

        bootMessage(&(evt->data.evt_system_boot));
        printLog("boot event - starting advertising\r\n");

        /* Set advertising parameters. 100ms advertisement interval.
         * The first parameter is advertising set handle
         * The next two parameters are minimum and maximum advertising interval, both in
         * units of (milliseconds * 1.6).
         * The last two parameters are duration and maxevents left as default. */
        gecko_cmd_le_gap_set_advertise_timing(0, 160, 160, 0, 0);

        GPIO_PinModeSet(gpioPortD,15, gpioModePushPull, 1);
        gecko_cmd_hardware_set_soft_timer(3277,0,1);

        /* Start general advertising and enable connections. */
        gecko_cmd_le_gap_start_advertising(0, le_gap_general_discoverable, le_gap_connectable_scannable);
        break;

      case gecko_evt_hardware_soft_timer_id:
            if (evt->data.evt_hardware_soft_timer.handle == 0)
            {
                GPIO_PinOutToggle(gpioPortD,15);

               gecko_cmd_hardware_set_soft_timer(3277,0,1);
            }
            break;

Now I can find the device with the smart phone, and the LED is blinking with a period of 47us. It seems that the device is entering in the timer event continously.

I tried this code on BGM13s22 with the board brd4305 and it works fine. So I think that I have to configure some clock in the custom board configuration, but I am not sure what code line I am missing.

Hi All,

I'm using a EFR32BG1B on custom board with High frequency crystal oscillator. I need the device to go to deep sleep mode, as I'm using it in NCP mode, it will be controlled by wake pin from host board (which uses different controller). Since the HFXO supports only EM1 - Sleep mode (as referred from https://www.silabs.com/community/wireless/bluetooth/knowledge-base.topic.10.10.html/using_energy_modesw-B4eB), how to make the device go to EM2 - Deep Sleep mode (if that is possible)? How to handle that from EFR32BG1B end?

When I try to open in the IAR IDE a firmware project generated in Simplicity Studio for EFR32GB22 device I see a warning message saying that the corresponding device description file "EFR32BG22C224F512IM40.ddf" for debugger is missing. And it is probably also the reason why I am not able to run the debug session in IAR IDE when the firmware is compiled.

Please could you advice if this device description file for IAR IDE is already available and where it is possible to get it?

Our team would like to use the EFR32BG for a high throughput serial datalink to the PC, is it possible to adapt the Throughput Tester Example to support this?

Idea

• Device - EFR32BG22 (Thunderboard)
• App - Throughput Tester Example (SoC Mode)
• Task - 1-1.4 Mbps Bluetooth throughput to PC

Available:

• TechKey EDR BT5 adapter
• HP Spectre x360 (BT5 support)
• a few EFR32 development modules

Thanks for the tooling and reference you provide along these items, much appreciated! Is this possible to extend the throughput tester to a PC? Which device do you recommend to connect with (e.g. the Spectre or TechKey above)?

My company has a situation where we have 3+ devices.

A is the provisioner (also an embedded device)

B is a already provisioned device

C is a non-provisioned device.

If C is too far away from A, can B act as a go between for the provisioning of C by proxy?

Hi
Our project highly depends on the time consumption of spi operation. Under LDMA mode, we find two problems to solve:
1. The time latency (initial time)between the start time of the spi write  function and the send time of first spi bit, it's about 7us now; (T2 - T1 in the picture)
2. The unknown reason time gap during spi transmit (red circle in the picture)
The two problems are highly possible caused by the driver function efficiency of the hardware layer. Could you please provide a high-efficiency method to use the spi bus(e.g. a low-level driver directly access the registers)

Hello,

I am following QSG148: Getting Started with the Silicon Labs Bluetooth® Mesh Lighting Demonstration. I have a BGM13P32 module in which I have flashed the BT Mesh - Light example code. I am using my phone (Xiaomi Mi A3) to scan and provision the module using the Bluetooth Mesh app (Android). I am able to scan the device and provision it multiple times without any issue. However, I have noticed that one I increase my distance from the module, around -80dBm and lesser, I am still able to scan my module but it is unable to provision it. I get an error which says that the provision of the device failed. 

I don't know why this happens, but I would like to increase the range from which I can provision my module, as I intend to create my custom PCB which will go inside the wall socket. So I have two questions:

1) Why am I unable to provision the BGM13P32 module when the RSSI is around -80dBm or lower?
2) How can I increase the range of the module / increase the strength of the RSSI? I have read on other forums that by increasing the Tx Power, we can increase the range. But since all the module is doing is advertising before the provisioning starts, wouldnt it remain a maximum of +10dB?

Hi,

I have connected an external antenna (2.4 GHz) to my Blue Gecko BGM13S22. Will this sufficient or should solder or unsolder the resistors. The information in datasheet is not clear for me.

How can we come to know whether my external antenna really connected and it is working?.

Will this set up increase the range of the BGMS22?. Are there any other advantages?.

My antenna is FXP74 2.4GHz Black Diamond Flex PCB Antenna. It has peak gain as 4dBi. May I use this antenna?.

Thank you. 

Hi,

I would like to know why the current measured in the BGM121 during advertising  and with a tx power of -13dBm, is high then the current consumption with a tx power of -6.5 dBm as can be seen in https://docs.silabs.com/bluetooth/latest/general/system-and-performance/current-consumption-variation-with-tx-power. I need to know because from my measurements i have a similar result but i don't know how to justify it.

Thanks, Alex.

Hello,

             I have tested OTA and UART DFU for my project, and individually they both work as expected. However, as much as I understand there is one bootloader called 

bootloader-storage-internal-single-512k-combined.s37 for OTA-DFU and another called bootloader-uart-bgapi-combined.s37 for UART-DFU.

When I used the later, DFU worked only with UART and failed with OTA.

Is there some way I could use one boot loader for both UART and OTA DFU?

Thanks.

Hello,

            I have implemented the secure OTA procedure for my code and used the EFR Connect app to update my device. Every thing works perfectly as expected. I use signed encrypted gbls files and a secure bootloader.

I now want to do this with bonding enabled. I use gecko_cmd_sm_increase_security when the device is connected in slave mode. Since the apploader does not support bonding, I added gecko_cmd_sm_delete_bondings() right before gecko_cmd_system_reset(2) to delete all bondings before being reset. However the OTA fails.

Can you please let me know what is the best way to have bonding for my app, but not for OTA so that when an OTA needs to be done bonding gets disabled. 

Thankyou.