Combine two or three "I2C" Devices with NRF5340

[Mr.NCK]

HI,

 I have already got output from each of the SHT20 and MLX90614 sensors. Now I want to combine both the code. Regards, I need an help to Setup prj.conf file

Thanks & Regards

Navin

[Heidi]

Hi again!

Could you elaborate on what help you need? You have two applications that you would like to combine and you're having trouble with the prj.conf file? As in, their dependencies don't merge? Or something else?

Perhaps you can provide the code you're working with, or at least the individual prj.conf files.

Best regards,

Heidi

[Mr.NCK]

Hi,

 I have written two applications for interfacing sensors with NRF5340. Now I need to combine both the applications as one.

Regards I need to know "How to do that ". 

Heidi said:

you're having trouble with the prj.conf file?

Actually, I need to know how to do??

Thanks & Regards

Navin

[Heidi]

Can you please provide the applications you want to combine?

[Mr.NCK]

HI,

Heidi said:

provide the applications you want to combine

I will send my applications and also share my prj.conf file here. Kindly check that and tell me if anything is wrong

 

5226.prj.conf

Thanks & Regards

Navin

[Mr.NCK]

Hi Heidi,

5732.nrf5340dk_nrf5340_cpuapp.overlay

while opening the project with the above overlay file I have facing the error called

create_nordic_project.py failed (1)

the log was

Creating solution VET_Firm.emProject
F:/v1.5.0/toolchain/opt/bin/cmake.exe -GNinja -DBOARD=nrf5340dk_nrf5340_cpuapp -DBOARD_DIR=F:\v1.5.0\zephyr\boards\arm\nrf5340dk_nrf5340 -BF:\v1.5.0\zephyr\samples\MyProjects\VET_Firm\build_nrf5340dk_nrf5340_cpuapp -SF:\v1.5.0\zephyr\samples\MyProjects\VET_Firm -DNCS_TOOLCHAIN_VERSION=1.5.0 -DDTC_OVERLAY_FILE=F:\v1.5.0\zephyr\samples\MyProjects\VET_Firm/nrf5340dk_nrf5340_cpuapp.overlay -DEXTRA_KCONFIG_TARGETS=menuconfig_ses -DEXTRA_KCONFIG_TARGET_COMMAND_FOR_menuconfig_ses=F:\v1.5.0\toolchain\segger_embedded_studio/html/configure_nordic_project_menuconfig.py
-- Application: F:/v1.5.0/zephyr/samples/MyProjects/VET_Firm
-- Zephyr version: 2.4.99 (F:/v1.5.0/zephyr)
-- Found Python3: F:/v1.5.0/toolchain/opt/bin/python.exe (found suitable exact version "3.8.2") found components: Interpreter
-- Found west (found suitable version "0.9.0", minimum required is "0.7.1")
-- Board: nrf5340dk_nrf5340_cpuapp
-- Cache files will be written to: F:/v1.5.0/zephyr/.cache
-- Found dtc: F:/v1.5.0/toolchain/opt/bin/dtc.exe (found suitable version "1.4.7", minimum required is "1.4.6")
-- Found toolchain: gnuarmemb (F:/v1.5.0/toolchain/opt)
-- Found BOARD.dts: F:/v1.5.0/zephyr/boards/arm/nrf5340dk_nrf5340/nrf5340dk_nrf5340_cpuapp.dts
-- Found devicetree overlay: F:/v1.5.0/zephyr/samples/MyProjects/VET_Firm/nrf5340dk_nrf5340_cpuapp.overlay
-- Configuring incomplete, errors occurred!
Including boilerplate (Zephyr base): F:/v1.5.0/zephyr/cmake/app/boilerplate.cmake
-- Using NCS Toolchain 1.5.0 for building. (F:/v1.5.0/toolchain/cmake)
devicetree error: 'interrupts' is marked as required in 'properties:' in F:/v1.5.0/zephyr/dts/bindings\i2c\nordic,nrf-twim.yaml, but does not appear in <Node /soc/peripheral@50000000/i2c@8000/BNO055@28 in 'nrf5340dk_nrf5340_cpuapp.dts.pre.tmp'>
CMake Error at F:/v1.5.0/zephyr/cmake/dts.cmake:229 (message):
gen_defines.py failed with return code: 1
Call Stack (most recent call first):
F:/v1.5.0/zephyr/cmake/app/boilerplate.cmake:533 (include)
F:/v1.5.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include)
F:/v1.5.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:35 (include_boilerplate)
CMakeLists.txt:8 (find_package)



error: cmake failed
create_nordic_project.py failed (1)

I think the above error is because of the Device tree. Already, You know our requirements. Kindly check my overlay file and correct me.

    Kindly respond, We are waiting for a long time. 

Thanks & Regards 

Navin

[Heidi]

Hi

As I mentioned earlier, due to the summer holidays, long wait times on DevZone are to be expected.

In the log, it says

devicetree error: 'interrupts' is marked as required in 'properties:' in F:/v1.5.0/zephyr/dts/bindings\i2c\nordic,nrf-twim.yaml, but does not appear in <Node /soc/peripheral@50000000/i2c@8000/BNO055@28 in 'nrf5340dk_nrf5340_cpuapp.dts.pre.tmp'>

so you need to add the "interrupts" field in all the I2C sub-nodes, because it's specified as required by the binding file. 

[Mr.NCK]

Heidi said:

add the "interrupts" field in all the I2C sub-nodes,

KIndly, give me some example

[Heidi]

Hi,

After taking a closer look, I see that you're defining all the sub-nodes with the "nordic, nrf-twim" binding, which is incorrect.

For the compatible-property of the sub-nodes, you need to use the vendor specific bindings, not "nordic,nrf-twim". 

For example, in the BME680 Sample, the BME680 device is defined with the BME680 binding:

&i2c0 {
	bme680@76 {
		compatible = "bosch,bme680";
		reg = <0x76>;
		label = "BME680";
	};
};

Source: zephyr/samples/sensor/b,e680/boards/nrf52840dk_nrf52840.overlay-L9

It doesn't look like any of the devices you are using have a binding definition in Zephyr (see the Bindings index for a complete list of available devicetree bindings in Zephyr).

[Mr.NCK]

Hi heidi,

I understood now, But if my sensor is not available in bindings index. How can I add??

[Heidi]

Hi, 

You need to write them yourself and add them to your NCS fork.

I also encourage you to create a PR when you're done.

You should also write a driver for each device.

See How to Build Drivers for Zephyr and  DOs and DON’Ts for designing and writing Devicetree bindings