Hello

I have some problems with continuing streaming from bt to i2s.

From time to time, stream was interupt as 1sec.

It is randomly, appearing on all devices, tested lot of chip and lot of phones,this issue still appearing.

From time to time is synchronised by set using Avrcp pdu 31 1 command and pdu 20 0 2.( i thing some commands do it), but i am not sure.

I ask for list,set profile and pdu for status of player, but only when module send battery low error (i setup this parameter to get voltage).

Why lot of modules interupt audio streaming?

Second question, that avrcp pdu, how long this event working?

Could i set up this once, or i have to setup only on startup, connect phone or other way?

Regards

Hi,

 I keep receiving the following message -

This is for a revision controlled project which didn't have this error when commited last, what is the source for this problem? If you Proceed the debug session works just fine

Hi, I'm working on a matching circuit antenna and I'm following this KBA (https://www.silabs.com/community/wireless/zigbee-and-thread/knowledge-base.entry.html/2019/12/31/overview_of_efr32se-V5FA).

My matching network from TX pin is the same the KBA and when I measure the impedance of EFR32 matching network (on UFL connector), the return loss of a 2.4GHz is a kind of weird, like image bellow shows.

The minimum return loss is at 2.35GHz and not at 2.4GHz. Is that correct or I will need to modify this EFR32 matching network?

The measurement of aTX Pin without matching network is like that:

Thanks.

I have set config.max_timers=8 and __STACK_SIZE=4096 and __HEAP_SIZE=4096, but I can only successfully set 4 software timers, with the others returning error code 0x0182 (out of memory). But it is difficult to believe that running out of memory is really the problem. Anyone can help me out? Many many thanks in advance

//=============================================================================
// Timers debug somewhat-mwe
// https://www.silabs.com/community/wireless/bluetooth/forum.topic.html/multiple_timer_usage-635O
// https://www.silabs.com/documents/public/reference-manuals/Bluetooth_Smart_Software-BLE-1.5-API-RM.pdf
// https://www.silabs.com/community/wireless/bluetooth/forum.topic.html/i_have_a_problemaboutthesofttimerofble-daQ0
//=============================================================================
#include "init_board.h"
#include "init_app.h"
#include "ble-configuration.h"
#include "board_features.h"
#include "bg_types.h"
#include "native_gecko.h"
#include "gatt_db.h"
#include "em_emu.h"
#include "em_cmu.h"
#include "init_mcu.h"
#include "thunderboard/board.h"
#include "thunderboard/util.h"
#include "hardware/kit/EFR32MG12_BRD4166A/config/bspconfig.h"
#include "app.h"

#define MAX_CONNECTIONS 1

uint8_t bluetooth_stack_heap[DEFAULT_BLUETOOTH_HEAP(MAX_CONNECTIONS)];

//-----------------------------------------------------------------------------
//! \brief Bluetooth stack configuration parameters
//! \reference "UG136: Silicon Labs Bluetooth C Application Developer's Guide"
//! https://www.silabs.com/documents/public/user-guides/ug136-ble-c-soc-dev-guide.pdf
//! For flag definitions, see board_features.h
//-----------------------------------------------------
static gecko_configuration_t config =
{
  .config_flags = 0,
  .sleep.flags  = false,
  .bluetooth.max_connections = MAX_CONNECTIONS,
  .bluetooth.max_advertisers = 1,
  .bluetooth.heap = bluetooth_stack_heap,
  .bluetooth.heap_size = sizeof(bluetooth_stack_heap),
  .max_timers = 8
};

//-----------------------------------------------------------------------------
//! \brief Main function
//-----------------------------------------------------------------------------
int main(void)
{
  const bool verbose = true;
  const bool single_shot = false;
  const uint32 timerTicks = 8192;
  const uint32 size_stack = (uint32)(__STACK_SIZE);
  const uint32 size_heap  = (uint32)(__HEAP_SIZE);
  uint16 result;
  uint8  handle;
  uint32 header;
  errorcode_t errorCode;
  struct gecko_cmd_packet* evt;

  initMcu();
  initBoard();
  initApp();
  initVcomEnable();
  UTIL_init();
  BOARD_init();

  errorCode = gecko_stack_init(&config);
  gecko_bgapi_class_hardware_init();

  initLog();

  if(verbose)
  {
    printf("Initialize Gecko...");
    if( errorCode==bg_err_success ) printf("OK!\r\n");
    else                            printf("ERROR! errorcode = 0x%04X (%d)\r\n", errorCode, errorCode);
  }

  if(verbose)
  {
    printf("\r\n");
    printf("STACK_SIZE = 0x%08lX (%ld)\r\n", size_stack, size_stack);
    printf("HEAP_SIZE  = 0x%08lX (%ld)\r\n", size_heap,  size_heap);
    printf("max_timers = %u\r\n", config.max_timers);
  }

  while(1) {
    if (!gecko_event_pending()) flushLog();
    evt = gecko_wait_event();
      header = BGLIB_MSG_ID(evt->header);
      switch (header)
      {
        case gecko_evt_system_boot_id:
          printf("Event: gecko_evt_system_boot_id (0x%08lX)\r\n", header);
          if((result = gecko_cmd_hardware_set_soft_timer(timerTicks, 0, single_shot)->result )) printf("ERROR! setting timer 0; return = 0x%04X\r\n", result);
          if((result = gecko_cmd_hardware_set_soft_timer(timerTicks, 1, single_shot)->result )) printf("ERROR! setting timer 1; return = 0x%04X\r\n", result);
          if((result = gecko_cmd_hardware_set_soft_timer(timerTicks, 2, single_shot)->result )) printf("ERROR! setting timer 2; return = 0x%04X\r\n", result);
          if((result = gecko_cmd_hardware_set_soft_timer(timerTicks, 3, single_shot)->result )) printf("ERROR! setting timer 3; return = 0x%04X\r\n", result);
          if((result = gecko_cmd_hardware_set_soft_timer(timerTicks, 4, single_shot)->result )) printf("ERROR! setting timer 4; return = 0x%04X\r\n", result);
          if((result = gecko_cmd_hardware_set_soft_timer(timerTicks, 5, single_shot)->result )) printf("ERROR! setting timer 5; return = 0x%04X\r\n", result);
          if((result = gecko_cmd_hardware_set_soft_timer(timerTicks, 6, single_shot)->result )) printf("ERROR! setting timer 6; return = 0x%04X\r\n", result);
          if((result = gecko_cmd_hardware_set_soft_timer(timerTicks, 7, single_shot)->result )) printf("ERROR! setting timer 7; return = 0x%04X\r\n", result);
          break;

        case gecko_evt_hardware_soft_timer_id:
          handle = evt->data.evt_hardware_soft_timer.handle;
          if( handle<=7 ) printf(" %d", handle);
          else            printf("\r\nERROR: Unknown SW Timer Event handle 0x%02X\r\n", handle);
          break;

        default:
          printf("\r\nERROR! Unknown Event header 0x%08lX\r\n", header);
          break;
    }
  }
}

STACK_SIZE = 0x00001000 (4096)
HEAP_SIZE  = 0x00001000 (4096)
max_timers = 8
Event: gecko_evt_system_boot_id (0x000100A0)
ERROR! setting timer 4; return = 0x0182
ERROR! setting timer 5; return = 0x0182
ERROR! setting timer 6; return = 0x0182
ERROR! setting timer 7; return = 0x0182
 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1

Building file: ../main.c
Invoking: GNU ARM C Compiler
arm-none-eabi-gcc -g -gdwarf-2 -mcpu=cortex-m4 -mthumb -std=c99 '-D__STACK_SIZE=0x1000' '-DHAL_CONFIG=1' '-D__StackLimit=0x20000000' '-D__HEAP_SIZE=0x1000' '-DEFR32MG12P332F1024GL125=1' -I"C:\dan\projects\timers" -I"C:\dan\projects\timers\platform\emlib\src" -I"C:\dan\projects\timers\platform\Device\SiliconLabs\EFR32MG12P\Source" -I"C:\dan\projects\timers\platform\Device\SiliconLabs\EFR32MG12P\Include" -I"C:\dan\projects\timers\platform\emdrv\gpiointerrupt\inc" -I"C:\dan\projects\timers\platform\radio\rail_lib\common" -I"C:\dan\projects\timers\hardware\kit\common\drivers" -I"C:\dan\projects\timers\platform\emlib\inc" -I"C:\dan\projects\timers\app\bluetooth\common\util" -I"C:\dan\projects\timers\platform\service\sleeptimer\src" -I"C:\dan\projects\timers\hardware\kit\common\halconfig" -I"C:\dan\projects\timers\protocol\bluetooth\ble_stack\inc\common" -I"C:\dan\projects\timers\platform\CMSIS\Include" -I"C:\dan\projects\timers\platform\emdrv\gpiointerrupt\src" -I"C:\dan\projects\timers\protocol\bluetooth\ble_stack\inc\soc" -I"C:\dan\projects\timers\platform\radio\rail_lib\protocol\ble" -I"C:\dan\projects\timers\platform\service\sleeptimer\inc" -I"C:\dan\projects\timers\platform\emdrv\sleep\inc" -I"C:\dan\projects\timers\hardware\kit\common\bsp" -I"C:\dan\projects\timers\platform\service\sleeptimer\config" -I"C:\dan\projects\timers\platform\radio\rail_lib\chip\efr32\efr32xg1x" -I"C:\dan\projects\timers\platform\emdrv\common\inc" -I"C:\dan\projects\timers\platform\emdrv\uartdrv\inc" -I"C:\dan\projects\timers\platform\emdrv\sleep\src" -I"C:\dan\projects\timers\platform\radio\rail_lib\protocol\ieee802154" -I"C:\dan\projects\timers\platform\common\inc" -I"C:\dan\projects\timers\platform\bootloader\api" -I"C:\dan\projects\timers\platform\Device\SiliconLabs\EFR32MG12P\Source\GCC" -I"C:\dan\projects\timers\platform\emdrv\dmadrv\inc" -I"C:\dan\projects\timers\platform\emdrv\dmadrv\src" -I"C:\dan\projects\timers\platform\halconfig\inc\hal-config" -I"C:\dan\projects\timers\hardware\kit\EFR32MG12_BRD4166A\config" -I"C:\dan\projects\timers\platform\bootloader" -O2 -Wall -c -fmessage-length=0 -ffunction-sections -fdata-sections -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -MMD -MP -MF"main.d" -MT"main.o" -o "main.o" "../main.c"
Finished building: ../main.c

Invoking: GNU ARM C Linker
arm-none-eabi-gcc -g -gdwarf-2 -mcpu=cortex-m4 -mthumb -T "C:\dan\projects\timers\efr32mg12p332f1024gl125.ld" -u _printf_float -Xlinker --gc-sections -Xlinker -Map="timers.map" -mfpu=fpv4-sp-d16 -mfloat-abi=softfp --specs=nano.specs ...

Hello,

I'm new to Bluetooth programming, so please excuse any misunderstandings or ignorance. I'm working with the development board for the EFR32xG22 chip.

My project is currently reading a value from an I2C ADC at 1kHz and sending it to a receiver. The code for reading the data is run with an interrupt from TIMER1. 

The code for sending the data is based on the SPP example, so I'm using the gecko_cmd_gatt_server_send_characteristic_notification(_conn_handle, gattdb_gatt_spp_data, len, data) command. The problem is that it often returns error 130 ('\202') which I don't know the meaning of. The data in each notification is just 4 bytes, but I assume this is probably not the optimal value. Latency is not a large issue, so I could accumulate ADC readings and send them in bulk if necessary.

The end goal is to read and transfer 3 16-bit values at 10kHz. This would be 3*16*10000=60kB/s which seems well within the capabilities of these chips. Could you please advise on what I can change in the code to make this possible?

Thanks,

Ansel

Hello everyone,

I'm working on EFR32MG12 chip and I have to integrate dtm commands for industrial parts.

This is my trouble : when I call gecko_cmd_test_dtm_tx( test_pkt_prbs9, 37, 19, test_phy_1m ) and 5 sec later gecko_cmd_test_dtm_end(), start and end commands always return success but events return 0 number_of_packets. Sometimes it return a result > 0.

It's a really strange behaviour and I don't know where to search.

Thanks in advance for your responses.

Hello. I am using a BGM113 and based on the "SoC - Empty" example I am using it to scan nearby bluetooth devices. However, the data I get in the scan response does not make any sense to me. I am using the most recent version of the Gecko SDK v2.13.6.0

I start the discovery process using this code

gecko_cmd_le_gap_set_discovery_timing(le_gap_phy_1m, 800, 600);
gecko_cmd_le_gap_set_discovery_type(le_gap_phy_1m, 1);
gecko_cmd_le_gap_start_discovery(le_gap_phy_1m, le_gap_connectable_scannable);

and that seems to work, I receive the le_gap_scan_response event. The event is then handled by the app's main switch statement like so:

case gecko_evt_le_gap_scan_response_id:
    handleScanResponse(evt->data.evt_le_gap_scan_response);
    break;

and the handler function looks like this

static void handleScanResponse(struct gecko_msg_le_gap_scan_response_evt_t response) {
	// Copy response data so we can work with it more easily
	uint8_t i;
	uint8_t *data = malloc(response.data.len);
	for (i = 0; i < response.data.len; i++) {
		*(data + i) = response.data.data[i];
	}

	// Do stuff with the data...

	free(data);
}

According to the reference manual I would expect response.data.data to contain the advertising data the device sent out.
But when I look at the data in the debugger's variable viewer it does not look anything like the advertisement data I would expect.

For one thing, response.data.data does not actually show all the data and when I select "Display as Array" on it, the same data[0] just gets repeated.
And as you can see, my copied data does not look like advertisement data. Here is, what I would (kind of) expect:

(This is a screenshot from the nRF Connect app)

Did I miss something or is my understanding of how the scan response is supposed to work flawed? Please advise.

Edit: I should probably mention, what I'm trying to do is as soon as the BGM sees a beacon with a specific UUID I want the BGM to turn on a GPIO pin.

Hi!

I've to store large size const uint16_t arrays and don't need OTA functionality, I read in another thread that OTA feature takes around 40KB of flash, so is it possible to free that flash memory by remove ota/apploader? If yes, how? i can't find clear answer in AN1086 (https://www.silabs.com/documents/public/application-notes/an1086-gecko-bootloader-bluetooth.pdf )

I'm looking to implement BLE in a remote sensor application where I need to read an SPI sensor and transmit as fast as possible (max throughput). Looking through the documentation, ~1.3 Mbps is the max BLE 5 throughput which works for me. What I see, though, is that the IC is solely transmitting in these cases (see throughput tester KBA_BT_0915 where there are no screen updates until after transmitting is complete https://www.silabs.com/community/wireless/bluetooth/knowledge-base.entry.html/2017/11/21/throughput_testerex-octu).

What I would like to know is if anyone has simultaneously run a peripheral to fill the BLE buffer to maintain max throughput? I have the ERF32xG22 ICs in mind since they have 125C temperature operating range variants. The datasheets say there are 4 buffers up to 4096 bytes that the radio buffer controller can use for transmitting. So is it possible to run SPI in DMA to fill the buffers and maintain max BLE throughput?

If not, is there another way such as using a separate microcontroller to read the SPI sensor and then pass the data to the BLE IC operating in NCP?

Hi,

I am using gecko_cmd_flash_ps_save, does this check that the value being written has changed before writing, i.e. does it skip writing if the value is the same? I am currently using stack V2.11 for this project.

Thanks

Patrick

Hi all,

Apologies if this has been asked before, but is there any way to OTA a BGM121 device from a linux device (specifically Raspberry PI)? It seems as the documentation only uses the native phone apps or Zigbee.

Thanks!

Hello everyone,

I build my application on top of the WSTK kit, from example DynamicProtocolLightSed.
First, I enabled plugins to allow temperature and humidity readings, as well as the I2C plugin

Next I created the HA Temperature Sensor and HA Humidity Sensor endpoints (custom from HA Temperature Sensor).

It worked, I was able to see it show the temperature and humidity on my console screen

The next step I want to send it through BLE, I have to create one more service as shown, but when using the app to see it, all the values are 0.

I think I still need to use a function to post this value. Right now I don't know where and how to write it