PA + LNA with BLE and Zigbee at the same time

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Mon, 02 Nov 2020 17:21:05 GMT

Hi Edvin,

Based on results, we decided to remove PA/LNA from our project

Regards

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Mon, 26 Oct 2020 07:05:24 GMT

Can you share a sniffer trace showing this, please?

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Tue, 20 Oct 2020 13:35:24 GMT

Hi Edvin,

Yes, we are testing this with an end device and a coordinator only.

The Data Request, for example, is sent many times until get an ack.

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Tue, 20 Oct 2020 12:48:41 GMT

How many retransmissions are we talking about? Are you sure that what you are seeing is not just the packet hopping through the network? Check the source and destination address on the bottom layer. of the message. Can you send a sniffer trace showing this?

BR,

Edvin

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Tue, 20 Oct 2020 12:03:52 GMT

Hi Edvin,

By setting NRF_FEM_PA_TIME_IN_ADVANCE_US and NRF_FEM_LNA_TIME_IN_ADVANCE_US to their default values (23 and 5 us) there is nothing logged into Wireshark.

When tried some other values (i.e. 40us for both values) we can see that data is sent from the device and sometimes received, but there are several retransmissions from other devices when sending reports to this device (on every packet, not occasionally).

Regards

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Tue, 20 Oct 2020 07:45:40 GMT

What do you mean by this? Are there one retransmission? Many? On every packet? Or only occasionally?

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Mon, 19 Oct 2020 15:35:48 GMT

Hi, we tried these and by modifying pa and lna time gap settings it started to send some messges. Anyway, Wireshark logs show that with the times selected there are multiple retransmissions from devices to coordinator (which has the PA/LNA module)

is there any recommendation on these settings?

Thanks in advance

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Fri, 09 Oct 2020 14:13:37 GMT

Thanks so much. We will try to update this.

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Fri, 09 Oct 2020 14:10:19 GMT

And the radio driver repository is found here:

github.com/.../nRF-IEEE-802.15.4-radio-driver

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Fri, 09 Oct 2020 14:09:13 GMT

Hello,

So I spoke some more with our Zigbee team regarding rebuilding the radio drivers. It is possible to do, and you can do it by modifying the generated drivers.

I have only received this file for the SDK4.1.0. I don't think there are too many API changes between 4.0.0 and 4.1.0. Can you please try to port to SDK4.1.0?

The modified drivers are attached here:

devzone.nordicsemi.com/.../0312.nrf_5F00_radio_5F00_driver.a

devzone.nordicsemi.com/.../7268.nrf_5F00_radio_5F00_driver_5F00_simulator.a

devzone.nordicsemi.com/.../5125.nrf_5F00_radio_5F00_driver_5F00_softdevice.a

What you need to do is to replace these (the one that you use), and then change the application's header files to match these.

The change was that nrf-802154-driver/src/fem/three_pin_gpio/nrf_fem_three_pin_gpio.c was removed, and

nrf-802154-driver/src/fem/simple_gpio/nrf_fem_simple_gpio.c was added, and the include folder:

nrf-802154-driver/src/fem/three_pin_gpio was removed, and nrf-802154-driver/src/fem/simple_gpio was included.

In case you want to build these yourself, you can use this makefile, which you place in the root folder of the radio driver root folder (use v1.6.1)

#-*-Makefile-*-
#/* ZBOSS Zigbee 3.0
# *
# * Copyright (c) 2012-2018 DSR Corporation, Denver CO, USA.
# * http://www.dsr-zboss.com
# * http://www.dsr-corporation.com
# * All rights reserved.
# *
# *
# * Use in source and binary forms, redistribution in binary form only, with
# * or without modification, are permitted provided that the following conditions
# * are met:
# *
# * 1. Redistributions in binary form, except as embedded into a Nordic
# *    Semiconductor ASA integrated circuit in a product or a software update for
# *    such product, must reproduce the above copyright notice, this list of
# *    conditions and the following disclaimer in the documentation and/or other
# *    materials provided with the distribution.
# *
# * 2. Neither the name of Nordic Semiconductor ASA nor the names of its
# *    contributors may be used to endorse or promote products derived from this
# *    software without specific prior written permission.
# *
# * 3. This software, with or without modification, must only be used with a Nordic
# *    Semiconductor ASA integrated circuit.
# *
# * 4. Any software provided in binary form under this license must not be reverse
# *    engineered, decompiled, modified and/or disassembled.
# *
# * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS OR
# * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# * MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
# * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE LIABLE
# * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
# * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#  PURPOSE: Makefile for Nordic nRF52840 driver
# */

BUILD_HOME := ..

ifeq ($(ZB_GNU_INSTALL_ROOT),)
# Linux
#  ZB_GNU_INSTALL_ROOT := /usr/local/gcc-arm-none-eabi-6-2017-q2-update/bin
# Windows
 ZB_GNU_INSTALL_ROOT := C:/Program Files (x86)/GNU Tools ARM Embedded/4.9 2015q3/bin
endif

# Nordic SDK and Driver
ifeq ($(ZB_NSDK_ROOT),)
  ZB_NSDK_ROOT := $(BUILD_HOME)/../4.1.0
endif
ifeq ($(ZB_NDRV_ROOT),)
  ZB_NDRV_ROOT := $(BUILD_HOME)/nRF-IEEE-802.15.4-radio-driver-1.6.1
endif

CC      := "$(ZB_GNU_INSTALL_ROOT)/arm-none-eabi-gcc"
AR      := "$(ZB_GNU_INSTALL_ROOT)/arm-none-eabi-ar"

# Source files common to all targets
SRC_FILES += \
  $(ZB_NDRV_ROOT)/src/nrf_802154.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_critical_section.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_debug.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_core.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_core_hooks.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_pib.c \
  $(ZB_NDRV_ROOT)/src/rsch/nrf_802154_rsch.c \
  $(ZB_NDRV_ROOT)/src/rsch/nrf_802154_rsch_crit_sect.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_rssi.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_rx_buffer.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_timer_coord.c \
  $(ZB_NDRV_ROOT)/src/fal/nrf_802154_fal.c \
  $(ZB_NDRV_ROOT)/src/fem/simple_gpio/nrf_fem_simple_gpio.c \
#  $(ZB_NDRV_ROOT)/src/fem/three_pin_gpio/nrf_fem_three_pin_gpio.c \
  $(ZB_NDRV_ROOT)/src/mac_features/nrf_802154_csma_ca.c \
  $(ZB_NDRV_ROOT)/src/mac_features/nrf_802154_filter.c \
  $(ZB_NDRV_ROOT)/src/mac_features/nrf_802154_delayed_trx.c \
  $(ZB_NDRV_ROOT)/src/mac_features/nrf_802154_frame_parser.c \
  $(ZB_NDRV_ROOT)/src/mac_features/nrf_802154_precise_ack_timeout.c \
  $(ZB_NDRV_ROOT)/src/mac_features/ack_generator/nrf_802154_ack_data.c \
  $(ZB_NDRV_ROOT)/src/mac_features/ack_generator/nrf_802154_ack_generator.c \
  $(ZB_NDRV_ROOT)/src/mac_features/ack_generator/nrf_802154_enh_ack_generator.c \
  $(ZB_NDRV_ROOT)/src/mac_features/ack_generator/nrf_802154_imm_ack_generator.c \
  $(ZB_NDRV_ROOT)/src/platform/clock/nrf_802154_clock_sdk.c \
  $(ZB_NDRV_ROOT)/src/platform/lp_timer/nrf_802154_lp_timer_nodrv.c \
  $(ZB_NDRV_ROOT)/src/platform/hp_timer/nrf_802154_hp_timer.c \
  $(ZB_NDRV_ROOT)/src/platform/random/nrf_802154_random_stdlib.c \
  $(ZB_NDRV_ROOT)/src/platform/temperature/nrf_802154_temperature_none.c \
  $(ZB_NDRV_ROOT)/src/platform/coex/nrf_802154_wifi_coex_none.c \
  $(ZB_NDRV_ROOT)/src/timer_scheduler/nrf_802154_timer_sched.c  \

SRC_FILES_NOSD = \
  $(SRC_FILES) \
  $(ZB_NDRV_ROOT)/src/rsch/raal/single_phy/single_phy.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_notification_direct.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_priority_drop_direct.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_request_direct.c \

SRC_FILES_SD = \
  $(SRC_FILES) \
  $(ZB_NDRV_ROOT)/src/rsch/raal/softdevice/nrf_raal_softdevice.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_notification_swi.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_priority_drop_swi.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_request_swi.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_swi.c \

SRC_FILES_SIMULATOR = \
  $(SRC_FILES) \
  $(ZB_NDRV_ROOT)/src/rsch/raal/simulator/nrf_raal_simulator.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_notification_direct.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_priority_drop_direct.c \
  $(ZB_NDRV_ROOT)/src/nrf_802154_request_direct.c \

# Include folders common to all targets


INC_FOLDERS += \
  -I$(ZB_NDRV_ROOT)/src \
  -I$(ZB_NDRV_ROOT)/src/fal \
  -I$(ZB_NDRV_ROOT)/src/fem \
  -I$(ZB_NDRV_ROOT)/src/fem/simple_gpio \
#  -I$(ZB_NDRV_ROOT)/src/fem/three_pin_gpio \
  -I$(ZB_NDRV_ROOT)/src/rsch/raal \
  -I$(ZB_NDRV_ROOT)/src/rsch \
  -I$(ZB_NDRV_ROOT)/src/platform/clock \
  -I$(ZB_NDRV_ROOT)/src/platform/lp_timer \
  -I$(ZB_NDRV_ROOT)/src/platform/hp_timer \
  -I$(ZB_NDRV_ROOT)/src/platform/random \
  -I$(ZB_NDRV_ROOT)/src/platform/temperature \
  -I$(ZB_NDRV_ROOT)/src/platform/coex \
  -I$(ZB_NDRV_ROOT)/src/mac_features \
  -I$(ZB_NDRV_ROOT)/src/mac_features/ack_generator \
  -I$(ZB_NDRV_ROOT)/src/timer_scheduler \
  -I$(ZB_NSDK_ROOT)/config/nrf52840/config \
  -I$(ZB_NSDK_ROOT)/components/libraries/util \
  -I$(ZB_NSDK_ROOT)/components/toolchain/cmsis/include \
  -I$(ZB_NSDK_ROOT)/modules/nrfx/mdk \
  -I$(ZB_NSDK_ROOT)/modules/nrfx/drivers/include \
  -I$(ZB_NSDK_ROOT)/modules/nrfx/hal \
  -I$(ZB_NSDK_ROOT)/modules/nrfx \
  -I$(ZB_NSDK_ROOT)/integration/nrfx \
  -I$(ZB_NSDK_ROOT)/integration/nrfx/legacy \
  -I$(ZB_NSDK_ROOT)/components/libraries/util \
  -I$(ZB_NSDK_ROOT)/config/nrf52840/config \

INC_FOLDERS_NOSD = \
  -I$(ZB_NSDK_ROOT)/config/nrf52840/config \
  $(INC_FOLDERS) \
  -I$(ZB_NSDK_ROOT)/components/drivers_nrf/nrf_soc_nosd \

INC_FOLDERS_SD = \
  $(INC_FOLDERS) \
  -I$(ZB_NDRV_ROOT)/src/rsch/raal/softdevice \
  -I$(ZB_NSDK_ROOT)/components/softdevice/common \
  -I$(ZB_NSDK_ROOT)/components/softdevice/s140/headers \
  -I$(ZB_NSDK_ROOT)/components/softdevice/s140/headers/nrf52 \

INC_FOLDERS_SIMULATOR = \
  $(INC_FOLDERS) \
  -I$(ZB_NSDK_ROOT)/src/rsch/raal/simulator \
  -I$(ZB_NSDK_ROOT)/components/drivers_nrf/nrf_soc_nosd \


# Optimization flags
OPT = -Os # -g3
# Uncomment the line below to enable link time optimization
#OPT += -flto

DEFINES += -DDEBUG_NRF
DEFINES += -DBOARD_PCA10056
DEFINES += -DNRF52840_XXAA
DEFINES += -DENABLE_FEM

DEFINES_NOSD = $(DEFINES) -DRAAL_SINGLE_PHY
DEFINES_SD = $(DEFINES) -DS140 -DRAAL_SOFTDEVICE -DSOFTDEVICE_PRESENT #-DSWI_DISABLE0
DEFINES_SIMULATOR = $(DEFINES) -DRAAL_SIMULATOR

# C flags common to all targets
CFLAGS += $(OPT) 
CFLAGS += -mcpu=cortex-m4
CFLAGS += -mthumb -mabi=aapcs
CFLAGS +=  -Wall -Werror
CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
# keep every function in a separate section, this allows linker to discard unused ones
CFLAGS += -ffunction-sections -fdata-sections -fno-strict-aliasing
CFLAGS += -fno-builtin -fshort-enums
CFLAGS += -std=c99

DRV_LIB_NOSD = nrf_radio_driver.a
DRV_LIB_SD = nrf_radio_driver_softdevice.a
DRV_LIB_SIMULATOR = nrf_radio_driver_simulator.a

.SUFFIXES: .c .o .nosd.o .sd.o  .sim.o

.c.nosd.o:
	$(CC)  -c $(CFLAGS) $(DEFINES_NOSD) $(INC_FOLDERS_NOSD) -o $@ $<
.c.sd.o:
	$(CC)  -c $(CFLAGS) $(DEFINES_SD) $(INC_FOLDERS_SD) -o $@ $<
.c.sim.o:
	$(CC)  -c $(CFLAGS) $(DEFINES_SIMULATOR) $(INC_FOLDERS_SIMULATOR) -o $@ $<


OBJ_FILES_NOSD = ${SRC_FILES_NOSD:.c=.nosd.o}
OBJ_FILES_SD = ${SRC_FILES_SD:.c=.sd.o}
OBJ_FILES_SIMULATOR = ${SRC_FILES_SIMULATOR:.c=.sim.o}
MAKE_LIB    = $(AR) r $@ $^

all: $(ZB_NDRV_ROOT)/$(DRV_LIB_NOSD) $(ZB_NDRV_ROOT)/$(DRV_LIB_SD) $(ZB_NDRV_ROOT)/$(DRV_LIB_SIMULATOR)

$(ZB_NDRV_ROOT)/$(DRV_LIB_NOSD) : $(OBJ_FILES_NOSD)
	$(MAKE_LIB)
$(ZB_NDRV_ROOT)/$(DRV_LIB_SD) : $(OBJ_FILES_SD)
	$(MAKE_LIB)
$(ZB_NDRV_ROOT)/$(DRV_LIB_SIMULATOR) : $(OBJ_FILES_SIMULATOR)
	$(MAKE_LIB)


clean:
	$(RM) -rf $(ZB_NDRV_ROOT)/$(DRV_LIB_NOSD)
	$(RM) -rf $(ZB_NDRV_ROOT)/$(DRV_LIB_SD)
	$(RM) -rf $(ZB_NDRV_ROOT)/$(DRV_LIB_SIMULATOR)
	find $(ZB_NDRV_ROOT) -type f -name '*.o' -exec rm {} \;

The changes you need to do is that the ZB_NDRV_ROOT needs to point to the radio driver repository, and ZB_NSDK_ROOT points to your SDK for thread and zigbee v4.1.0.

Best regards,

Edvin

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Tue, 29 Sep 2020 12:58:29 GMT

Hello,

It looks like multiprotocol FEM support is not supported at the moment. It may be that it works, but it is not tested from our side. That being said, the 802.15.4 drivers needs to be re-built to change the default support from the nRF21540 to the Skyworks module.

It doesn't look like this is something you can do yourself, but let me double check that.

If we can rebuild these drivers, it still isn't a guarantee that the multiprotocol will work with the skyworks module.

Best regards,

Edvin

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Thu, 17 Sep 2020 13:41:17 GMT

sorry. You have mentioned that several times. I thought the BT840x and SKY66112 was the same device. I am not familiar with the modules out there. Let me run this by our Zigbee team.

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Thu, 17 Sep 2020 13:23:28 GMT

Hi Edvin,

Fanstel module BT840X implements SKY66112 as FEM

Yes, PA works since BLE works properly when calling function pa_lna_init() . But not Zigbee.

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Thu, 17 Sep 2020 13:06:29 GMT

What front end module are you using, exactly? Did you try to analyze the FEM pins? Is there any data on them?

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Wed, 16 Sep 2020 22:24:21 GMT

I think that pa_lna_init() and FEM_CONTROL_XXX have to be configured too at the same time to get BLE and Zigbee working, right?

If so, I think that the problem is that in our case Zigbee does not seem to be managing the Frontend properly with the Fanstel Module BT840X.

Is there any extra setting to use FEM_CONTROL_XXX with Zigbee and SoftDevice while running within a SoftDevice timeslot?

Regards

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Wed, 16 Sep 2020 19:20:25 GMT

Hi Edvin,

BLE works properly with option 1 (calling function pa_lna_init). But in this case Zigbee does not work

BLE stops working when using option 2 (setting FEM_CONTROL_XXX from sdk_config.h)

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Tue, 15 Sep 2020 07:39:15 GMT

I am not sure I understand what you are doing in your first snippet, where you claim that only BLE is working.

From your first reply to my questions, you say that BLE is not working either when you enable FEM. You maintain a connection in nRF Toolbox. Is the device advertising (BLE) at all? Or is the radio dead silent? Because if so, it would mean that there is either a HW or a software problem, but not necessarily related to the Zigbee stack at all.

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Mon, 14 Sep 2020 14:47:38 GMT

Hi Edvin,

Pins P0.05 to P0.010 are unused.

We are currently setting

FEM_CONTROL_DEFAULT_ENABLE 1

FEM_CONTROL_DEFAULT_PA_PIN 17

FEM_CONTROL_DEFAULT_LNA_PIN 19

FEM_CONTROL_DEFAULT_PDN_PIN 11

FEM_CONTROL_DEFAULT_MODE_PIN 8

FEM_CONTROL_DEFAULT_ANTSEL_PIN 13

FEM_CONTROL_DEFAULT_CSN_PIN 6

PDN and ANTSEL pins are hardwired so we configured them to unused pins just in case.
BLE does not seem to work with this configuration 
(signal detected by LightBlue is less than -90dB quite close to the hub)

Thanks for your support

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Thu, 10 Sep 2020 09:21:32 GMT

I see. Just to try to pinpoint where the issue, so I know who to reach out to.

Can you please test to not use any of the pins P0.05 - P0.10, just to ensure that you don't have any conflicts with the pins that are used by the UART by default (5-8), and not the NFC pins (9-10).

Have you tried to analyze the FEM pins that you have connected to the front end module? Is there any data on the lines? If so, are these signals from the Zigbee or BLE? (try to disable one to check the other).

BR,

Edvin

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Wed, 09 Sep 2020 11:56:02 GMT

Hi Edvin,

No, pins P0.09 or P0.10 are unused.

In option 1, when calling function pa_lna_init() we use:

#define APP_PA_PIN 17

#define APP_LNA_PIN 19

#define APP_CHL_PIN 8

#define APP_CPS_PIN 6

In option 2, when setting at sdk_config.h FEM_CONTROL_DEFAULT_ENABLE 1 we use:

// <o> FEM_CONTROL_DEFAULT_PA_PIN - Pin number, controlling Power Amplifier of the FEM module

#ifndef FEM_CONTROL_DEFAULT_PA_PIN

#define FEM_CONTROL_DEFAULT_PA_PIN 17/*BIOBOT: PREV22*/

#endif

// <o> FEM_CONTROL_DEFAULT_LNA_PIN - Pin number, controlling Low Noise Amplifier of the FEM module

#ifndef FEM_CONTROL_DEFAULT_LNA_PIN

#define FEM_CONTROL_DEFAULT_LNA_PIN 19

#endif

What about the other pin settings to enable BLE & Zigbee at the same time on Fanstel BT840X?

FEM_CONTROL_DEFAULT_PDN_PIN

FEM_CONTROL_DEFAULT_MODE_PIN

FEM_CONTROL_DEFAULT_ANTSEL_PIN

FEM_CONTROL_DEFAULT_MOSI_PIN

FEM_CONTROL_DEFAULT_MISO_PIN

FEM_CONTROL_DEFAULT_CLK_PIN

FEM_CONTROL_DEFAULT_CSN_PIN

Thanks for your kind support,

Santiago

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Tue, 08 Sep 2020 15:36:11 GMT

in particular, do you use the pins P0.09 or P0.10?

If not, do you use any of the pins used by e.g. the UART for logging?

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Tue, 08 Sep 2020 13:42:42 GMT

Hello Santiago,

What pins do you use for the PA/LNA? And are you sure that these pins are not used by anything else in your application?

RE: PA + LNA with BLE and Zigbee at the same time

sjf — Mon, 07 Sep 2020 15:02:50 GMT

Hi Edvin,

Sorry for the late response.

Yes, without enabling the PA/LNA everything works as expected.

When FEM_CONTROL_DEFAULT_ENABLE is enabled, BLE connections are rejected from the NRF Toolbox App...

No assert from App/SD

Is there any proper example or recommendation for enabling PA/LNA on BLE and Zigbee at the same time?

Regards,

Santiago

RE: PA + LNA with BLE and Zigbee at the same time

Edvin — Thu, 03 Sep 2020 11:51:34 GMT

Hello,

Are you sure pa_lna is related to this at all? Did everything work as expected before you enabled pa lna? Did the Zigbee work as expected?

[quote user=""]2. When setting at sdk_config.h FEM_CONTROL_DEFAULT_ENABLE to 1 (and other FEM_CONTROL_DEFAULT_XXX for pins), BLE stops working...[/quote]

What do you mean by that? What happens when it stops working? Do you get an application/softdevice assert?