Channel sounding not enough memory to store step data (530 > 512)

[Triscuit]

Hi, 

I am currently working with the channel_sounding/connected_cs sample for nrf54l15 and I keep getting the error: Not enough memory to store step data (530 > 512). I tried increasing CONFIG_MAIN_STACK_SIZE but the same error still showed up. Do you have any advice on how to resolve this issue?

[Elfving]

Hi,

Is this the default (ie. completely unmodified) version of the sample? Are you using nrf54l15 DKs? What NCS version are you using?

Regards,

Elfving

[Triscuit]

Hi, 

Yes, this is completely unmodified. I am using nrf54l15-dk with NCS version 3.0.0, thank you so much for your response.

[Triscuit]

I have tried to use the version with real time ranging, but every time I tried to compile it I get the error:

error: 'RAS_FEAT_REALTIME_RD' undeclared (first use in this function)
  176 |         if (!(ras_feature_bits & RAS_FEAT_REALTIME_RD))
  
In function 'main':
  593 |         const bool realtime_rd = ras_feature_bits & RAS_FEAT_REALTIME_RD;
  
warning: implicit declaration of function 'bt_ras_rreq_realtime_rd_subscribe'; did you mean 'bt_ras_rreq_rd_ready_subscribe'? [-Wimplicit-function-declaration]
  596 |                 err = bt_ras_rreq_realtime_rd_subscribe(connection,
      |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                       bt_ras_rreq_rd_ready_subscribe
[29/360] Building C object zephyr/subsys/bluetooth/host/CMakeFiles/subsys__bluetooth__host.dir/hci_core.c.obj
ninja: build stopped: subcommand failed.

Even though I just cloned it from the github repository. I could not get it to compile and I have 3.0.1 which is the latest version. Am I supposed to add something extra into the config file?

[Elfving]

It builds on my side.

Make sure that you are using the right SDK and toolchain version. You would eg. need to use the entire to mainbranch SDK, not just the sample code. There has been changes in the API etc. after all. Download the entire SDK for the main branch, then make a new sample.

Are you continuously seeing this issue when trying the sample in the previous version? Could you send me the logs that you are getting?

Regards,

Elfving

[Triscuit]

Hi, 

I was able to build it after downloading all the zephyr dependencies, where as before I just cloned the repository from Github. What is the purpose of real-time ranging? I don't really see a difference between the two versions. Thanks in advance.

[Elfving]

I see. Could you then provide me the logs you are getting with this error.

Triscuit said:

What is the purpose of real-time ranging?

It could give faster and more accurate results. And as it reduces the number of GATT transactions needed to transfer the data between the devices, and therefore makes it possible to reduce the procedure interval. You should likely see less of the "Ranging data overwritten" issue.

Regards,

Elfving

[Triscuit]

Hi,

Before I got it to work this was the error:

-- west build: generating a build system
Loading Zephyr module(s) (Zephyr base): sysbuild_default
-- Found Python3: C:/ncs/toolchains/0b393f9e1b/opt/bin/python.exe (found suitable version "3.12.4", minimum required is "3.10") found components: Interpreter 
-- Cache files will be written to: C:/ncs/v3.0.1/zephyr/.cache
-- Found west (found suitable version "1.2.0", minimum required is "0.14.0")
-- Board: nrf54l15dk, qualifiers: nrf54l15/cpuapp
Parsing c:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/Kconfig.sysbuild
Loaded configuration 'C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/_sysbuild/empty.conf'
Merged configuration 'C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/_sysbuild/empty.conf'
Configuration saved to 'C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/zephyr/.config'
Kconfig header saved to 'C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/_sysbuild/autoconf.h'
-- 
   ****************************************************
   * Running CMake for channel_sounding_ras_initiator *
   ****************************************************

Loading Zephyr default modules (Zephyr base).
-- Application: C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator
-- CMake version: 3.21.0
-- Found Python3: C:/ncs/toolchains/0b393f9e1b/opt/bin/python.exe (found suitable version "3.12.4", minimum required is "3.10") found components: Interpreter 
-- Cache files will be written to: C:/ncs/v3.0.1/zephyr/.cache
-- Zephyr version: 4.0.99 (C:/ncs/v3.0.1/zephyr)
-- Found west (found suitable version "1.2.0", minimum required is "0.14.0")
-- Board: nrf54l15dk, qualifiers: nrf54l15/cpuapp
-- Found host-tools: zephyr 0.17.0 (C:/ncs/toolchains/0b393f9e1b/opt/zephyr-sdk)
-- Found toolchain: zephyr 0.17.0 (C:/ncs/toolchains/0b393f9e1b/opt/zephyr-sdk)
-- Found Dtc: C:/ncs/toolchains/0b393f9e1b/opt/bin/dtc.exe (found suitable version "1.4.7", minimum required is "1.4.6") 
-- Found BOARD.dts: C:/ncs/v3.0.1/zephyr/boards/nordic/nrf54l15dk/nrf54l15dk_nrf54l15_cpuapp.dts
-- Found devicetree overlay: boards/nrf54l15dk_nrf54l15_cpuapp.overlay
-- Generated zephyr.dts: C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/zephyr.dts
-- Generated pickled edt: C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/edt.pickle
-- Generated zephyr.dts: C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/zephyr.dts
-- Generated devicetree_generated.h: C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/include/generated/zephyr/devicetree_generated.h
-- Including generated dts.cmake file: C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/dts.cmake

warning: Experimental symbol BT_CS_DE is enabled.


warning: Experimental symbol BT_CHANNEL_SOUNDING is enabled.

Parsing C:/ncs/v3.0.1/zephyr/Kconfig
Loaded configuration 'C:/ncs/v3.0.1/zephyr/boards/nordic/nrf54l15dk/nrf54l15dk_nrf54l15_cpuapp_defconfig'
Merged configuration 'C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/prj.conf'
Merged configuration 'C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/.config.sysbuild'
Configuration saved to 'C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/.config'
Kconfig header saved to 'C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/include/generated/zephyr/autoconf.h'
-- Found GnuLd: c:/ncs/toolchains/0b393f9e1b/opt/zephyr-sdk/arm-zephyr-eabi/arm-zephyr-eabi/bin/ld.bfd.exe (found version "2.38") 
-- The C compiler identification is GNU 12.2.0
-- The CXX compiler identification is GNU 12.2.0
-- The ASM compiler identification is GNU
-- Found assembler: C:/ncs/toolchains/0b393f9e1b/opt/zephyr-sdk/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc.exe
=========== Generating psa_crypto_config ===============
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Backup: CONFIG_MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT: False
Backup: CONFIG_MBEDTLS_THREADING: False
Backup: CONFIG_MBEDTLS_THREADING_ALT: True
=========== Checkpoint: backup ===============
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Restore: CONFIG_MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT: False
Restore: CONFIG_MBEDTLS_THREADING: False
Restore: CONFIG_MBEDTLS_THREADING_ALT: True
=========== End psa_crypto_config ===============
=========== Generating psa_crypto_library_config ===============
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Backup: CONFIG_MBEDTLS_USE_PSA_CRYPTO: True
Backup: CONFIG_MBEDTLS_PLATFORM_PRINTF_ALT: False
Backup: CONFIG_MBEDTLS_THREADING: False
Backup: CONFIG_MBEDTLS_THREADING_ALT: True
=========== Checkpoint: backup ===============
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Restore: CONFIG_MBEDTLS_USE_PSA_CRYPTO: True
Restore: CONFIG_MBEDTLS_PLATFORM_PRINTF_ALT: False
Restore: CONFIG_MBEDTLS_THREADING: False
Restore: CONFIG_MBEDTLS_THREADING_ALT: True
=========== End psa_crypto_library_config ===============
CMake Warning at C:/ncs/v3.0.1/zephyr/CMakeLists.txt:2180 (message):
  __ASSERT() statements are globally ENABLED-- Configuring done
-- Generating done
-- Build files have been written to: C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator
-- Configuring done
-- Generating done
-- Build files have been written to: C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build
-- west build: building application
[4/568] Generating include/generated/zephyr/version.h
-- Zephyr version: 4.0.99 (C:/ncs/v3.0.1/zephyr), build: v4.0.99-ncs1-1
[178/568] Building C object CMakeFiles/app.dir/src/main.c.obj
FAILED: CMakeFiles/app.dir/src/main.c.obj 
C:\ncs\toolchains\0b393f9e1b\opt\zephyr-sdk\arm-zephyr-eabi\bin\arm-zephyr-eabi-gcc.exe -DKERNEL -DK_HEAP_MEM_POOL_SIZE=512 -DMBEDTLS_CONFIG_FILE=\"nrf-config.h\" -DMBEDTLS_PSA_CRYPTO_CONFIG_FILE=\"nrf-psa-crypto-config.h\" -DMBEDTLS_PSA_CRYPTO_USER_CONFIG_FILE=\"nrf-psa-crypto-user-config.h\" -DNRF54L15_XXAA -DNRF_APPLICATION -DNRF_CONFIG_CPU_FREQ_MHZ=128 -DPICOLIBC_DOUBLE_PRINTF_SCANF -DUSE_PARTITION_MANAGER=1 -D__LINUX_ERRNO_EXTENSIONS__ -D__PROGRAM_START -D__ZEPHYR__=1 -IC:/ncs/v3.0.1/nrf/drivers/mpsl/clock_control -IC:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/include/generated/zephyr -IC:/ncs/v3.0.1/zephyr/include -IC:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/include/generated -IC:/ncs/v3.0.1/zephyr/soc/nordic -IC:/ncs/v3.0.1/zephyr/soc/nordic/nrf54l/. -IC:/ncs/v3.0.1/zephyr/soc/nordic/common/. -IC:/ncs/v3.0.1/zephyr/subsys/bluetooth -IC:/ncs/v3.0.1/nrf/include -IC:/ncs/v3.0.1/nrf/lib/multithreading_lock/. -IC:/ncs/v3.0.1/nrf/subsys/bluetooth/controller/. -IC:/ncs/v3.0.1/nrf/tests/include -IC:/ncs/v3.0.1/modules/hal/cmsis/CMSIS/Core/Include -IC:/ncs/v3.0.1/zephyr/modules/cmsis/. -IC:/ncs/v3.0.1/modules/lib/cmsis-dsp/Include -IC:/ncs/v3.0.1/nrf/modules/hal_nordic/. -IC:/ncs/v3.0.1/modules/hal/nordic/nrfx -IC:/ncs/v3.0.1/modules/hal/nordic/nrfx/drivers/include -IC:/ncs/v3.0.1/modules/hal/nordic/nrfx/mdk -IC:/ncs/v3.0.1/zephyr/modules/hal_nordic/nrfx/. -IC:/ncs/v3.0.1/nrfxlib/softdevice_controller/include -IC:/ncs/v3.0.1/nrfxlib/mpsl/fem/common/include -IC:/ncs/v3.0.1/nrfxlib/mpsl/fem/nrf21540_gpio/include -IC:/ncs/v3.0.1/nrfxlib/mpsl/fem/nrf21540_gpio_spi/include -IC:/ncs/v3.0.1/nrfxlib/mpsl/fem/nrf2220/include -IC:/ncs/v3.0.1/nrfxlib/mpsl/fem/nrf2240/include -IC:/ncs/v3.0.1/nrfxlib/mpsl/fem/nrf22xx/include -IC:/ncs/v3.0.1/nrfxlib/mpsl/fem/simple_gpio/include -IC:/ncs/v3.0.1/nrfxlib/mpsl/fem/include -IC:/ncs/v3.0.1/nrfxlib/mpsl/fem/include/protocol -IC:/ncs/v3.0.1/nrfxlib/mpsl/include -IC:/ncs/v3.0.1/nrfxlib/mpsl/include/protocol -IC:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/generated/library_nrf_security_psa -IC:/ncs/v3.0.1/nrf/subsys/nrf_security/include -IC:/ncs/v3.0.1/modules/crypto/oberon-psa-crypto/oberon/drivers -IC:/ncs/v3.0.1/nrf/subsys/nrf_security/src/threading/include -IC:/ncs/v3.0.1/nrf/subsys/nrf_security/src/utils -IC:/ncs/v3.0.1/nrf/subsys/nrf_security/src/drivers/cracen/common/include -IC:/ncs/v3.0.1/nrf/subsys/nrf_security/src/drivers/cracen/sxsymcrypt/include -IC:/ncs/v3.0.1/nrf/subsys/nrf_security/src/drivers/cracen/sxsymcrypt/src -IC:/ncs/v3.0.1/nrf/subsys/nrf_security/src/drivers/cracen/silexpk/target/baremetal_ba414e_with_ik -IC:/ncs/v3.0.1/nrf/subsys/nrf_security/src/drivers/cracen/silexpk/include -IC:/ncs/v3.0.1/nrf/subsys/nrf_security/src/drivers/cracen/sicrypto/include -IC:/ncs/v3.0.1/nrf/subsys/nrf_security/src/drivers/cracen/cracenpsa/include -IC:/ncs/v3.0.1/modules/crypto/oberon-psa-crypto/include -IC:/ncs/v3.0.1/modules/crypto/oberon-psa-crypto/library -IC:/ncs/v3.0.1/modules/crypto/mbedtls/library -IC:/ncs/v3.0.1/modules/crypto/mbedtls/include -IC:/ncs/v3.0.1/modules/crypto/mbedtls/include/library -isystem C:/ncs/v3.0.1/zephyr/lib/libc/common/include -fno-strict-aliasing -Os -imacros C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/build/channel_sounding_ras_initiator/zephyr/include/generated/zephyr/autoconf.h -fno-common -g -gdwarf-4 -fdiagnostics-color=always -mcpu=cortex-m33 -mthumb -mabi=aapcs -mfpu=fpv5-sp-d16 -mfloat-abi=hard -mfp16-format=ieee -mtp=soft --sysroot=C:/ncs/toolchains/0b393f9e1b/opt/zephyr-sdk/arm-zephyr-eabi/arm-zephyr-eabi -imacros C:/ncs/v3.0.1/zephyr/include/zephyr/toolchain/zephyr_stdint.h -Wall -Wformat -Wformat-security -Wno-format-zero-length -Wdouble-promotion -Wno-pointer-sign -Wpointer-arith -Wexpansion-to-defined -Wno-unused-but-set-variable -Werror=implicit-int -fno-pic -fno-pie -fno-asynchronous-unwind-tables -ftls-model=local-exec -fno-reorder-functions --param=min-pagesize=0 -fno-defer-pop -fmacro-prefix-map=C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator=CMAKE_SOURCE_DIR -fmacro-prefix-map=C:/ncs/v3.0.1/zephyr=ZEPHYR_BASE -fmacro-prefix-map=C:/ncs/v3.0.1=WEST_TOPDIR -ffunction-sections -fdata-sections -specs=picolibc.specs -std=c99 -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 C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/src/main.c
C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/src/main.c: In function 'ranging_data_cb':
C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/src/main.c:176:34: error: 'RAS_FEAT_REALTIME_RD' undeclared (first use in this function)
  176 |         if (!(ras_feature_bits & RAS_FEAT_REALTIME_RD)) {
      |                                  ^~~~~~~~~~~~~~~~~~~~
C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/src/main.c:176:34: note: each undeclared identifier is reported only once for each function it appears in
C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/src/main.c: In function 'main':
C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/src/main.c:593:53: error: 'RAS_FEAT_REALTIME_RD' undeclared (first use in this function)
  593 |         const bool realtime_rd = ras_feature_bits & RAS_FEAT_REALTIME_RD;
      |                                                     ^~~~~~~~~~~~~~~~~~~~
C:/sdk-nrf/samples/bluetooth/channel_sounding_ras_initiator/src/main.c:596:23: warning: implicit declaration of function 'bt_ras_rreq_realtime_rd_subscribe'; did you mean 'bt_ras_rreq_rd_ready_subscribe'? [-Wimplicit-function-declaration]
  596 |                 err = bt_ras_rreq_realtime_rd_subscribe(connection,
      |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                       bt_ras_rreq_rd_ready_subscribe
[185/568] Building C object zephyr/CMakeFiles/zephyr.dir/lib/utils/bitarray.c.obj
ninja: build stopped: subcommand failed.

Now when I got it to work it says:

I: Distance estimates on antenna path 0: ifft: 0.585532, phase_slope: 1.027580, rtt: 1.500325
I: Sleeping for a few seconds...
E: Tried to parse empty step data.
E: Tried to parse empty step data.
E: Tried to parse empty step data.
E: Tried to parse empty step data.
I: Distance estimates on antenna path 0: ifft: 0.585532, phase_slope: 1.217534, rtt: 1.221137
I: Sleeping for a few seconds...
E: Tried to parse empty step data.
E: Tried to parse empty step data.
E: Tried to parse empty step data.
I: Distance estimates on antenna path 0: ifft: 0.585532, phase_slope: 1.055818, rtt: 1.346389

Is there a way to reduce the number of empty step data?

Thank you.