RE: How to adjust frequency offset of NRF5340

Hannibalhz — Thu, 07 Jul 2022 02:21:58 GMT
Dear Kaja
Thank you for your suggestion.This way is very effectual.
Best regards.
RE: How to adjust frequency offset of NRF5340

Kaja — Fri, 01 Jul 2022 09:03:15 GMT
Hi,

you need to write these values in the prj.conf
CONFIG_SOC_HFXO_CAP_INTERNAL =y
CONFIG_SOC_HFXO_CAP_INT_VALUE_X2 =20
in the empty_app_core.
In this way, you can change the values of internal capacitors.
Alternatively, you could use only
CONFIG_SOC_HFXO_CAP_INTERNAL =n
to disable internal ones in software (in the same prj.conf) and then add external capacitors.
Best regards,
Kaja
RE: How to adjust frequency offset of NRF5340

Hannibalhz — Thu, 30 Jun 2022 09:36:31 GMT
Dear kaja
I read these conversations and I tryed to modify them into the DTM program.
How to use internal capacitors on nrf5340?
RE: Can the software adjust the internal load capacitance of the nrf5340 crystal oscillator
1、I will try to add the following code to the NCS\v1.9.1\nrf\samples\bluetooth\direct_test_mode\prj.conf file
CONFIG_SOC_HFXO_CAP_INTERNAL =y
CONFIG_SOC_HFXO_CAP_INT_VALUE_X2 =20
But it seems not to be applied.
2、I read the following link.
https://github.com/nrfconnect/sdk-zephyr/blob/v2.7.99-ncs1-1/soc/arm/nordic_nrf/nrf53/Kconfig.soc#L149
It means that I can use external load capacitors.
So how can I set the code to use external load capacitors.?
3、
I try to add the following code to the main.c of direct_test_mode.
#include <hal/nrf_oscillators.h>
nrf_oscillators_hfxo_cap_set(NRF_OSCILLATORS, false, 0);
I build the code and it reprots some errors:
-- Configuring done
-- Generating done
-- Build files have been written to: E:/NCS/v1.9.1/nrf/samples/bluetooth/direct_test_mode/build_PTR9840
-- west build: building application
[1/170] Creating directories for 'empty_app_core_subimage'
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[5/170] No configure step for 'empty_app_core_subimage'
[5/170] Performing build step for 'empty_app_core_subimage'
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FAILED: CMakeFiles/app.dir/src/main.c.obj
E:\NCS\v1.9.1\toolchain\opt\bin\arm-none-eabi-gcc.exe -DBUILD_VERSION=v2.7.99-ncs1-1 -DKERNEL -DNRF5340_XXAA_NETWORK -DUSE_PARTITION_MANAGER=1 -D_FORTIFY_SOURCE=2 -D__PROGRAM_START -D__ZEPHYR__=1 -I../. -IE:/NCS/v1.9.1/zephyr/include -Izephyr/include/generated -IE:/NCS/v1.9.1/zephyr/soc/arm/nordic_nrf/nrf53 -IE:/NCS/v1.9.1/zephyr/soc/arm/nordic_nrf/common/. -IE:/NCS/v1.9.1/nrf/include -IE:/NCS/v1.9.1/modules/hal/cmsis/CMSIS/Core/Include -IE:/NCS/v1.9.1/modules/hal/nordic/nrfx -IE:/NCS/v1.9.1/modules/hal/nordic/nrfx/drivers/include -IE:/NCS/v1.9.1/modules/hal/nordic/nrfx/mdk -IE:/NCS/v1.9.1/zephyr/modules/hal_nordic/nrfx/. -IE:/NCS/v1.9.1/modules/debug/segger/SEGGER -IE:/NCS/v1.9.1/modules/debug/segger/Config -IE:/NCS/v1.9.1/zephyr/modules/segger/. -I../src/fem/. -isystem E:/NCS/v1.9.1/zephyr/lib/libc/minimal/include -isystem e:/ncs/v1.9.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/include -isystem e:/ncs/v1.9.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/include-fixed -Os -imacros E:/NCS/v1.9.1/nrf/samples/bluetooth/direct_test_mode/build_PTR9840/zephyr/include/generated/autoconf.h -ffreestanding -fno-common -g -gdwarf-4 -fdiagnostics-color=always -mcpu=cortex-m33+nodsp -mthumb -mabi=aapcs -mfp16-format=ieee -imacros E:/NCS/v1.9.1/zephyr/include/toolchain/zephyr_stdint.h -Wall -Wformat -Wformat-security -Wno-format-zero-length -Wno-main -Wno-pointer-sign -Wpointer-arith -Wexpansion-to-defined -Wno-unused-but-set-variable -Werror=implicit-int -fno-asynchronous-unwind-tables -fno-pie -fno-pic -fno-strict-overflow -fno-reorder-functions -fno-defer-pop -fmacro-prefix-map=E:/NCS/v1.9.1/nrf/samples/bluetooth/direct_test_mode=CMAKE_SOURCE_DIR -fmacro-prefix-map=E:/NCS/v1.9.1/zephyr=ZEPHYR_BASE -fmacro-prefix-map=E:/NCS/v1.9.1=WEST_TOPDIR -ffunction-sections -fdata-sections -std=c99 -nostdinc -MD -MT CMakeFiles/app.dir/src/main.c.obj -MF CMakeFiles\app.dir\src\main.c.obj.d -o CMakeFiles/app.dir/src/main.c.obj -c ../src/main.c
In file included from e:\NCS\v1.9.1\nrf\samples\bluetooth\direct_test_mode\src\main.c:10:
E:\NCS\v1.9.1\modules\hal\nordic\nrfx\hal\nrf_oscillators.h:53:41: error: 'OSCILLATORS_XOSC32KI_INTCAP_INTCAP_External' undeclared here (not in a function)
53 | NRF_OSCILLATORS_LFXO_CAP_EXTERNAL = OSCILLATORS_XOSC32KI_INTCAP_INTCAP_External, ///< Use external capacitors.
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
E:\NCS\v1.9.1\modules\hal\nordic\nrfx\hal\nrf_oscillators.h:54:41: error: 'OSCILLATORS_XOSC32KI_INTCAP_INTCAP_C6PF' undeclared here (not in a function)
54 | NRF_OSCILLATORS_LFXO_CAP_6PF = OSCILLATORS_XOSC32KI_INTCAP_INTCAP_C6PF, ///< Use 6 pF internal capacitors.
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
E:\NCS\v1.9.1\modules\hal\nordic\nrfx\hal\nrf_oscillators.h:55:41: error: 'OSCILLATORS_XOSC32KI_INTCAP_INTCAP_C7PF' undeclared here (not in a function)
55 | NRF_OSCILLATORS_LFXO_CAP_7PF = OSCILLATORS_XOSC32KI_INTCAP_INTCAP_C7PF, ///< Use 7 pF internal capacitors.
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
E:\NCS\v1.9.1\modules\hal\nordic\nrfx\hal\nrf_oscillators.h:56:41: error: 'OSCILLATORS_XOSC32KI_INTCAP_INTCAP_C9PF' undeclared here (not in a function)
56 | NRF_OSCILLATORS_LFXO_CAP_9PF = OSCILLATORS_XOSC32KI_INTCAP_INTCAP_C9PF, ///< Use 9 pF internal capacitors.
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
E:\NCS\v1.9.1\modules\hal\nordic\nrfx\hal\nrf_oscillators.h:66:56: error: unknown type name 'NRF_OSCILLATORS_Type'; did you mean 'NRF_OSCILLATORS_H__'?
66 | NRF_STATIC_INLINE void nrf_oscillators_lfxo_bypass_set(NRF_OSCILLATORS_Type * p_reg, bool enable);
| ^~~~~~~~~~~~~~~~~~~~
| NRF_OSCILLATORS_H__
E:\NCS\v1.9.1\modules\hal\nordic\nrfx\hal\nrf_oscillators.h:74:53: error: unknown type name 'NRF_OSCILLATORS_Type'; did you mean 'NRF_OSCILLATORS_H__'?
74 | NRF_STATIC_INLINE void nrf_oscillators_lfxo_cap_set(NRF_OSCILLATORS_Type * p_reg,
| ^~~~~~~~~~~~~~~~~~~~
| NRF_OSCILLATORS_H__
E:\NCS\v1.9.1\modules\hal\nordic\nrfx\hal\nrf_oscillators.h:89:53: error: unknown type name 'NRF_OSCILLATORS_Type'; did you mean 'NRF_OSCILLATORS_H__'?
89 | NRF_STATIC_INLINE void nrf_oscillators_hfxo_cap_set(NRF_OSCILLATORS_Type * p_reg,
| ^~~~~~~~~~~~~~~~~~~~
| NRF_OSCILLATORS_H__
E:\NCS\v1.9.1\modules\hal\nordic\nrfx\hal\nrf_oscillators.h:94:56: error: unknown type name 'NRF_OSCILLATORS_Type'; did you mean 'NRF_OSCILLATORS_H__'?
94 | NRF_STATIC_INLINE void nrf_oscillators_lfxo_bypass_set(NRF_OSCILLATORS_Type * p_reg, bool enable)
| ^~~~~~~~~~~~~~~~~~~~
| NRF_OSCILLATORS_H__
E:\NCS\v1.9.1\modules\hal\nordic\nrfx\hal\nrf_oscillators.h:100:53: error: unknown type name 'NRF_OSCILLATORS_Type'; did you mean 'NRF_OSCILLATORS_H__'?
100 | NRF_STATIC_INLINE void nrf_oscillators_lfxo_cap_set(NRF_OSCILLATORS_Type * p_reg,
| ^~~~~~~~~~~~~~~~~~~~
| NRF_OSCILLATORS_H__
E:\NCS\v1.9.1\modules\hal\nordic\nrfx\hal\nrf_oscillators.h:106:53: error: unknown type name 'NRF_OSCILLATORS_Type'; did you mean 'NRF_OSCILLATORS_H__'?
106 | NRF_STATIC_INLINE void nrf_oscillators_hfxo_cap_set(NRF_OSCILLATORS_Type * p_reg,
| ^~~~~~~~~~~~~~~~~~~~
| NRF_OSCILLATORS_H__
../src/main.c: In function 'main':
e:\NCS\v1.9.1\nrf\samples\bluetooth\direct_test_mode\src\main.c:26:5: warning: implicit declaration of function 'nrf_oscillators_hfxo_cap_set' [-Wimplicit-function-declaration]
26 | nrf_oscillators_hfxo_cap_set(NRF_OSCILLATORS, false, 0);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
e:\NCS\v1.9.1\nrf\samples\bluetooth\direct_test_mode\src\main.c:26:34: error: 'NRF_OSCILLATORS' undeclared (first use in this function); did you mean 'NRF_OSCILLATORS_H__'?
26 | nrf_oscillators_hfxo_cap_set(NRF_OSCILLATORS, false, 0);
| ^~~~~~~~~~~~~~~
| NRF_OSCILLATORS_H__
e:\NCS\v1.9.1\nrf\samples\bluetooth\direct_test_mode\src\main.c:26:34: note: each undeclared identifier is reported only once for each function it appears in
[97/170] Building C object zephyr/CMakeFiles/zephyr.dir/lib/os/hex.c.obj
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'e:\NCS\v1.9.1\toolchain\opt\bin\cmake.EXE' --build 'e:\NCS\v1.9.1\nrf\samples\bluetooth\direct_test_mode\build_PTR9840'
Pls give me some suggestions for these problems.
Best regards.
RE: How to adjust frequency offset of NRF5340

Kaja — Fri, 24 Jun 2022 11:02:52 GMT
Hi,

yes, then you must adjust the internal capacitors, if the frequency is higher then you want it to be, then adjust the capacitor to be larger then it is.

See using internal capacitors
Best regards,
Kaja