RE: RAM Overflowed by 3112 bytes

Jareena — Thu, 22 Feb 2024 12:39:59 GMT

Hi sir,

Ok, I will Optimize RAM usage for BME 280 and I have raised a new Question for Integrating BME 280 sensor in ht sample and Thank you for your help to resolve Memory Overflow Issue in nrf connect SDK. So, can you please, close this ticket.

Thanks,

Shiak Jareena.

RE: RAM Overflowed by 3112 bytes

Einar Thorsrud — Tue, 20 Feb 2024 08:31:10 GMT

Hi Shiak,

There is a post about BME280 here that may be usefull. Please make a new questino if you have futher questions about this. Note that as you have no spare RAM you will need to optimzie your RAM usage futher in order to be able to add support for this.

RE: RAM Overflowed by 3112 bytes

Jareena — Mon, 19 Feb 2024 13:53:12 GMT

Hi sir,

Thank you for you guidance and I have build the peripheral_ht application without errors and I got the Temperature values and I have to integrate BME280 sensor in this application. For this what files I have to integrate and what changes I need to do for it. Can you please, send any documentation regarding this If you have it or any information.

Thanks,

Shiak Jareena.

RE: RAM Overflowed by 3112 bytes

Einar Thorsrud — Mon, 19 Feb 2024 13:17:35 GMT

Hi Shaik,

The errors you get seem a bit strange, but that is becasue you are using the wrong format for the configs. You are not alowed to have a space before and after the = (just do it like you can see is allready doen in the file). After fixing that, there are also other prolbmes, which you can typically resolve by looking at the log (some of the values you have specifiied are outside of the allowed range). Also, these values need to match your use case.

I am able to make it build with these additional configs:

CONFIG_BT_L2CAP_TX_BUF_COUNT=2
CONFIG_BT_BUF_EVT_RX_COUNT=2
CONFIG_BT_CTLR_RX_BUFFERS=1
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=1664

But I have not tested this run-time so there may be issues I do not see.

RE: RAM Overflowed by 3112 bytes

Jareena — Mon, 19 Feb 2024 12:57:56 GMT

Hi sir,

After doing above mentioned three changes peripheral_ht Application size is got reduced from 3112 bytes to 680bytes as mentioned in below screenshot.

I have added these configurations in prj.conf file as mentioned below.

The following configuration options affect the Bluetooth buffers:

CONFIG_BT_BUF_EVT_DISCARDABLE_COUNT
CONFIG_BT_BUF_EVT_DISCARDABLE_SIZE
CONFIG_BT_BUF_EVT_RX_COUNT
CONFIG_BT_CONN_TX_MAX
CONFIG_BT_L2CAP_TX_BUF_COUNT
CONFIG_BT_BUF_ACL_TX_COUNT

CONFIG_BT_BUF_ACL_TX_SIZE

CONFIG_BT=y
CONFIG_LOG=n 
CONFIG_BT_SMP=y
CONFIG_BT_PERIPHERAL=y
CONFIG_BT_DIS=y
CONFIG_BT_DIS_PNP=n
CONFIG_BT_BAS=y
CONFIG_BT_DEVICE_NAME="Zephyr Health Thermometer"
CONFIG_BT_DEVICE_APPEARANCE=768
CONFIG_BT_ATT_ENFORCE_FLOW=n
CONFIG_CBPRINTF_FP_SUPPORT=y

 
CONFIG_CONSOLE=n
CONFIG_SERIAL=n
CONFIG_BT_BUF_EVT_DISCARDABLE_COUNT = 1
CONFIG_BT_BUF_EVT_DISCARDABLE_SIZE = 3
CONFIG_BT_BUF_EVT_RX_COUNT = 2
CONFIG_BT_CONN_TX_MAX = 1
CONFIG_BT_L2CAP_TX_BUF_COUNT = 1
CONFIG_BT_BUF_ACL_TX_COUNT = 1
CONFIG_BT_BUF_ACL_TX_SIZE = 2

Then, after I am facing these below mentioned issues. So, can you please help me in how to add these configurations.
Executing task: nRF Connect: Generate config nrf52dk_nrf52810 for c:\ncs\v2.5.2\zephyr\samples\bluetooth\peripheral_ht

Building peripheral_ht
west build --build-dir c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/build c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht --pristine --board nrf52dk_nrf52810 --no-sysbuild -- -DNCS_TOOLCHAIN_VERSION=NONE -DCONF_FILE=c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf -DBOARD_ROOT=c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht

-- west build: generating a build system
Loading Zephyr default modules (Zephyr base).
-- Application: C:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht
-- CMake version: 3.20.5
-- Found Python3: C:/ncs/toolchains/c57af46cb7/opt/bin/python.exe (found suitable version "3.8.2", minimum required is "3.8") found components: Interpreter
-- Cache files will be written to: C:/ncs/v2.5.2/zephyr/.cache
-- Zephyr version: 3.4.99 (C:/ncs/v2.5.2/zephyr)
-- Found west (found suitable version "1.1.0", minimum required is "0.14.0")
-- Board: nrf52dk_nrf52810
-- Found host-tools: zephyr 0.16.1 (C:/ncs/toolchains/c57af46cb7/opt/zephyr-sdk)
-- Found toolchain: zephyr 0.16.1 (C:/ncs/toolchains/c57af46cb7/opt/zephyr-sdk)
-- Found Dtc: C:/ncs/toolchains/c57af46cb7/opt/bin/dtc.exe (found suitable version "1.4.7", minimum required is "1.4.6")
-- Found BOARD.dts: C:/ncs/v2.5.2/zephyr/boards/arm/nrf52dk_nrf52810/nrf52dk_nrf52810.dts
-- Generated zephyr.dts: C:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/build/zephyr/zephyr.dts
-- Generated devicetree_generated.h: C:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/build/zephyr/include/generated/devicetree_generated.h
-- Including generated dts.cmake file: C:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/build/zephyr/dts.cmake

warning: UART_CONSOLE (defined at drivers/console/Kconfig:43) was assigned the value 'y' but got the
value 'n'. Check these unsatisfied dependencies: SERIAL (=n), SERIAL_HAS_DRIVER (=n), CONSOLE (=n).
See docs.zephyrproject.org/.../kconfig.html and/or look up
UART_CONSOLE in the menuconfig/guiconfig interface. The Application Development Primer, Setting
Configuration Values, and Kconfig - Tips and Best Practices sections of the manual might be helpful
too.

c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf:16: warning: attempt to assign the value ' 1' to the undefined symbol BT_BUF_EVT_DISCARDABLE_COUNT

c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf:17: warning: attempt to assign the value ' 3' to the undefined symbol BT_BUF_EVT_DISCARDABLE_SIZE

c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf:18: warning: attempt to assign the value ' 2' to the undefined symbol BT_BUF_EVT_RX_COUNT

c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf:19: warning: attempt to assign the value ' 1' to the undefined symbol BT_CONN_TX_MAX

c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf:20: warning: attempt to assign the value ' 1' to the undefined symbol BT_L2CAP_TX_BUF_COUNT

c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf:21: warning: ignoring malformed line '//CONFIG_BT_CTLR_RX_BUFFERS = 16'

c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf:22: warning: attempt to assign the value ' 1' to the undefined symbol BT_BUF_ACL_TX_COUNT

c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf:23: warning: attempt to assign the value ' 2' to the undefined symbol BT_BUF_ACL_TX_SIZE

error: Aborting due to Kconfig warnings

Parsing C:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/Kconfig
Loaded configuration 'C:/ncs/v2.5.2/zephyr/boards/arm/nrf52dk_nrf52810/nrf52dk_nrf52810_defconfig'
Merged configuration 'c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf'
CMake Error at C:/ncs/v2.5.2/zephyr/cmake/modules/kconfig.cmake:348 (message):
command failed with return code: 1
Call Stack (most recent call first):
C:/ncs/v2.5.2/nrf/cmake/modules/kconfig.cmake:29 (include)
C:/ncs/v2.5.2/zephyr/cmake/modules/zephyr_default.cmake:129 (include)
C:/ncs/v2.5.2/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
C:/ncs/v2.5.2/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
CMakeLists.txt:5 (find_package)

-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: 'C:\ncs\toolchains\c57af46cb7\opt\bin\cmake.EXE' -DWEST_PYTHON=C:/ncs/toolchains/c57af46cb7/opt/bin/python.exe '-Bc:\ncs\v2.5.2\zephyr\samples\bluetooth\peripheral_ht\build' -GNinja -DBOARD=nrf52dk_nrf52810 -DNCS_TOOLCHAIN_VERSION=NONE -DCONF_FILE=c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht/prj.conf -DBOARD_ROOT=c:/ncs/v2.5.2/zephyr/samples/bluetooth/peripheral_ht '-Sc:\ncs\v2.5.2\zephyr\samples\bluetooth\peripheral_ht'

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

Thanks,Shaik Jareena.

RE: RAM Overflowed by 3112 bytes

Einar Thorsrud — Mon, 19 Feb 2024 08:51:01 GMT

Hi Shaik,

The nRF52810 is quite limited on RAM, so you may need to do some optimizations. First of all, if you don't need loging, you can disable that (though that is usefull for debugging). This will also remove buffers used by the log system. You can do that by adding these configs:

CONFIG_LOG=n
CONFIG_CONSOLE=n
CONFIG_SERIAL=n

This will significantly reduce the RAM usage, but not enough.

You can also look at the suggestions under Memory footprint optimization, which lists a lot of buffers relevant for Bleutooth that you can adjust.