certification nrf52840 ETSI EN 300 328 V2.2.2 spirous emission channel 0 and channel 79

[alexandre trilles]

Good morning,

The laboratory ask me to put BLE module in emission channel 0 (2402Mhz) and channel 79 (2480Mhz) with GFSK 1Mbps. And after to be able to put in reception the module in channel 0 after channel 79. 

• CMin (2402MHz) and Cmax (2480 MHz)

I use the RAYTAC module with the nrf52840 chip and I use s140 nrf52 7.2.0.hex softdevice. The RAYTAC module is already certified FCC/CE ! 

Do you have functions to make it ?

Is it really necessary to force the module on these min and max channels, knowing that the module is at +8dBm !

I must to start the certification in Laboratory the March 13.

thank you very much for reply

Alexandre

[Amanda Hsieh]

Hi, 

You can use the radio test.

NCS:  https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/peripheral/radio_test/README.html or
nRF5: https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/nrf_radio_test_example.html

Regards,
Amanda H.

[alexandre trilles]

Hi,

ok thanks for information, it's good for me

good day

Alexandre

[alexandre trilles]

Good morning,

I take  the project radio_test  https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/peripheral/radio_test/README.html 

and the build result indicate an CMake Error, I think I miss it a Kconfig option ? thanks for help

Including generated dts.cmake file: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/build/zephyr/dts.cmake
C:/Users/atrilles/ncs/v2.3.0/zephyr/scripts/kconfig/kconfig.py: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/Kconfig:27: 'C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test\../../bluetooth/direct_test_mode/src/fem/Kconfig' not found (in 'rsource "../../bluetooth/direct_test_mode/src/fem/Kconfig"'). Check that environment variables are set correctly (e.g. $srctree, which is set to 'C:/Users/atrilles/ncs/v2.3.0/zephyr'). Also note that unset environment variables expand to the empty string.
Parsing C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/Kconfig
CMake Error at C:/Users/atrilles/ncs/v2.3.0/zephyr/cmake/modules/kconfig.cmake:328 (message):
command failed with return code: 1
Call Stack (most recent call first):
C:/Users/atrilles/ncs/v2.3.0/nrf/cmake/modules/kconfig.cmake:29 (include)
C:/Users/atrilles/ncs/v2.3.0/zephyr/cmake/modules/zephyr_default.cmake:108 (include)
C:/Users/atrilles/ncs/v2.3.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
C:/Users/atrilles/ncs/v2.3.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:97 (include_boilerplate)
CMakeLists.txt:32 (find_package)

 Executing task: nRF Connect: Build: radio_test/build (active) 

Building radio_test
west build --build-dir c:\Users\atrilles\Nordic\work_at\dtm_axup\radio_test\build c:\Users\atrilles\Nordic\work_at\dtm_axup\radio_test

-- west build: generating a build system
Loading Zephyr default modules (Zephyr base (cached)).
-- Application: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test
-- Cache files will be written to: C:/Users/atrilles/ncs/v2.3.0/zephyr/.cache
-- Zephyr version: 3.2.99 (C:/Users/atrilles/ncs/v2.3.0/zephyr)
-- Found west (found suitable version "0.14.0", minimum required is "0.7.1")
-- Board: nrf52840dk_nrf52840
-- Found host-tools: zephyr 0.15.2 (C:/Users/atrilles/ncs/toolchains/v2.3.0/opt/zephyr-sdk)
-- Found toolchain: zephyr 0.15.2 (C:/Users/atrilles/ncs/toolchains/v2.3.0/opt/zephyr-sdk)
-- Found BOARD.dts: C:/Users/atrilles/ncs/v2.3.0/zephyr/boards/arm/nrf52840dk_nrf52840/nrf52840dk_nrf52840.dts
-- Found devicetree overlay: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/nrf52840dk_nrf52840.overlay
-- Generated zephyr.dts: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/build/zephyr/zephyr.dts
-- Generated devicetree_generated.h: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/build/zephyr/include/generated/devicetree_generated.h
-- Including generated dts.cmake file: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/build/zephyr/dts.cmake
C:/Users/atrilles/ncs/v2.3.0/zephyr/scripts/kconfig/kconfig.py: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/Kconfig:27: 'C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test\../../bluetooth/direct_test_mode/src/fem/Kconfig' not found (in 'rsource "../../bluetooth/direct_test_mode/src/fem/Kconfig"'). Check that environment variables are set correctly (e.g. $srctree, which is set to 'C:/Users/atrilles/ncs/v2.3.0/zephyr'). Also note that unset environment variables expand to the empty string.
Parsing C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/Kconfig
CMake Error at C:/Users/atrilles/ncs/v2.3.0/zephyr/cmake/modules/kconfig.cmake:328 (message):
  command failed with return code: 1
Call Stack (most recent call first):
  C:/Users/atrilles/ncs/v2.3.0/nrf/cmake/modules/kconfig.cmake:29 (include)
  C:/Users/atrilles/ncs/v2.3.0/zephyr/cmake/modules/zephyr_default.cmake:108 (include)
  C:/Users/atrilles/ncs/v2.3.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
  C:/Users/atrilles/ncs/v2.3.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:97 (include_boilerplate)
  CMakeLists.txt:32 (find_package)


-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: 'c:\Users\atrilles\ncs\toolchains\v2.3.0\opt\bin\cmake.EXE' '-DWEST_PYTHON=c:\Users\atrilles\ncs\toolchains\v2.3.0\opt\bin\python.exe' '-Bc:\Users\atrilles\Nordic\work_at\dtm_axup\radio_test\build' -GNinja '-Sc:\Users\atrilles\Nordic\work_at\dtm_axup\radio_test'

 *  The terminal process terminated with exit code: 1. 
 *  Terminal will be reused by tasks, press any key to close it. 

 *  Executing task: nRF Connect: Build: radio_test/build (active) 

Building radio_test
west build --build-dir c:\Users\atrilles\Nordic\work_at\dtm_axup\radio_test\build c:\Users\atrilles\Nordic\work_at\dtm_axup\radio_test

-- west build: generating a build system
Loading Zephyr default modules (Zephyr base (cached)).
-- Application: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test
-- Cache files will be written to: C:/Users/atrilles/ncs/v2.3.0/zephyr/.cache
-- Zephyr version: 3.2.99 (C:/Users/atrilles/ncs/v2.3.0/zephyr)
-- Found west (found suitable version "0.14.0", minimum required is "0.7.1")
-- Board: nrf52840dk_nrf52840
-- Found host-tools: zephyr 0.15.2 (C:/Users/atrilles/ncs/toolchains/v2.3.0/opt/zephyr-sdk)
-- Found toolchain: zephyr 0.15.2 (C:/Users/atrilles/ncs/toolchains/v2.3.0/opt/zephyr-sdk)
-- Found BOARD.dts: C:/Users/atrilles/ncs/v2.3.0/zephyr/boards/arm/nrf52840dk_nrf52840/nrf52840dk_nrf52840.dts
-- Found devicetree overlay: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/nrf52840dk_nrf52840.overlay
-- Generated zephyr.dts: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/build/zephyr/zephyr.dts
-- Generated devicetree_generated.h: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/build/zephyr/include/generated/devicetree_generated.h
-- Including generated dts.cmake file: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/build/zephyr/dts.cmake
C:/Users/atrilles/ncs/v2.3.0/zephyr/scripts/kconfig/kconfig.py: C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/Kconfig:27: 'C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test\../../bluetooth/direct_test_mode/src/fem/Kconfig' not found (in 'rsource "../../bluetooth/direct_test_mode/src/fem/Kconfig"'). Check that environment variables are set correctly (e.g. $srctree, which is set to 'C:/Users/atrilles/ncs/v2.3.0/zephyr'). Also note that unset environment variables expand to the empty string.
Parsing C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/Kconfig
CMake Error at C:/Users/atrilles/ncs/v2.3.0/zephyr/cmake/modules/kconfig.cmake:328 (message):
  command failed with return code: 1
Call Stack (most recent call first):
  C:/Users/atrilles/ncs/v2.3.0/nrf/cmake/modules/kconfig.cmake:29 (include)
  C:/Users/atrilles/ncs/v2.3.0/zephyr/cmake/modules/zephyr_default.cmake:108 (include)
  C:/Users/atrilles/ncs/v2.3.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
  C:/Users/atrilles/ncs/v2.3.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:97 (include_boilerplate)
  CMakeLists.txt:32 (find_package)


-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: 'c:\Users\atrilles\ncs\toolchains\v2.3.0\opt\bin\cmake.EXE' '-DWEST_PYTHON=c:\Users\atrilles\ncs\toolchains\v2.3.0\opt\bin\python.exe' '-Bc:\Users\atrilles\Nordic\work_at\dtm_axup\radio_test\build' -GNinja '-Sc:\Users\atrilles\Nordic\work_at\dtm_axup\radio_test'

 *  The terminal process terminated with exit code: 1. 
 *  Terminal will be reused by tasks, press any key to close it. 

[Amanda Hsieh]

Hi, 

Copy the fem folder under nrf\samples\bluetooth\direct_test_mode\src to C:/Users/atrilles/Nordic/work_at/dtm_axup/radio_test/src and modify Kconfig L.27 to

rsource "src/fem/Kconfig"

-Amanda H.

[alexandre trilles]

Dear Amanda,

thank you very much the build result is OK.

In the radio test there is an user interface with commands, parameters link: Radio test (short-range) — nRF Connect SDK 2.3.99 documentation (nordicsemi.com)

1) Where are finding all parameters: ble_2Mbit, pattern_11110000..?

Set the data rate with the data_rate command to ble_2Mbit.

Set the transmission pattern with the transmit_pattern command to pattern_11110000.

Set the radio channel with the start_channel command to 40.

2) In the prj.conf Ifile, I see the following define but 

CONFIG_CONSOLE_HANDLER=y

CONFIG_SHELL=y

CONFIG_DYNAMIC_INTERRUPTS=y

CONFIG_NRFX_TIMER0=y

CONFIG_ENTROPY_GENERATOR=y

I'm having trouble seeing when UART is initialized for the Zephyr's console ?

Thanks for help

Alexandre

[alexandre trilles]

Dear Amanda,

in the apllication radio_test the main.c initialize only clock subsys with function void clock_init(void)

void main(void)

{

    printk("Starting Radio Test example\n");

    clock_init();

}

I don't understand I seems me when I send commands
data_rate ble_2Mbit, transmit_pattern pattern_11110000 and start_channel 40 I have a echo ?

Do I have add any functions ?

Thanks 

alexandre

[Amanda Hsieh]

Hi, 

alexandre trilles said:

1) Where are finding all parameters: ble_2Mbit, pattern_11110000..?

See the User interface doc.

alexandre trilles said:

I'm having trouble seeing when UART is initialized for the Zephyr's console ?

With the default radio_test, after flashing the sample, you can connect the terminal in the VSCode. 

You could see the output like this. If not, try to press the reset button. 

alexandre trilles said:

Do I have add any functions ?

No. 

-Amanda H.

[alexandre trilles]

Dear Amanda, 

1) I can connect to the board and run commands , the serail baudrate was 115200 !

2) I would like understand where is initialized the UART for the Zephyr's console ?

when I make a break debug on void main(void) the initialization UART is already make !

Thanks for help 

Alexandre

[Amanda Hsieh]

Hi,

Good job!

UART is initialized by shell. 

-Amanda H.

[alexandre trilles]

Dear Amanda,

you are right the UART is initialized by the shell,

But where can we find information that explains the location of this initialization and how zephyr is launched? I understood the shell is a Zephyr's service then at what moment we load Zephyr and the shell (.conf, .overlay file )? 

thanks for help

Alexandre