nRF52832 LIS3DH I2C

RE: nRF52832 LIS3DH I2C

awneil — Thu, 19 Nov 2020 23:33:55 GMT

[quote userid="95071" url="~/f/nordic-q-a/68508/nrf52832-lis3dh-i2c/281001#281001"]In the future, this project work might be commercialized, so we decided to go with visual studio[/quote]

Again, there is a free licence for commercial use of SES.

RE: nRF52832 LIS3DH I2C

awneil — Thu, 19 Nov 2020 23:32:10 GMT

[quote userid="95071" url="~/f/nordic-q-a/68508/nrf52832-lis3dh-i2c/281001#281001"]what I think my problem might be is, I did not include the header file properly[/quote]

If there was a problem with the #include, you would have got a compiler error about it.

A header just provide declarations; usually, the problem is that you've included the header but not provided the corresponding definitions - hence the linker says, "un-defined"

https://www.avrfreaks.net/comment/3027231#comment-3027231

RE: nRF52832 LIS3DH I2C

Karthiknk — Thu, 19 Nov 2020 23:18:45 GMT

1. no it does not use nrf_twi_sensor_init() and nrf_twi_sensor_reg_read() .

2. In the future, this project work might be commercialized, so we decided to go with visual studio.

what I think my problem might be is, I did not include the header file properly. Initially, I just copied the required library files and pasted in the workspace folder. I think that gave me the undefined reference problems.

Initially, I use to have one more error, undefined reference to `nrf_twi_mngr_init' that error disappeared when I created the project from twi_master example folder.

can anyone help me to include the libraries in visual studio code?

I included the path in c_cpp_properties.json but the header doesn't seem to be found. I get no such file or directory error.

correct me if I'm wrong.

RE: nRF52832 LIS3DH I2C

awneil — Wed, 18 Nov 2020 22:13:50 GMT

[quote userid="95071" url="~/f/nordic-q-a/68508/nrf52832-lis3dh-i2c/280706#280706"]the unmodified example builds without any error[/quote]

does it use nrf_twi_sensor_init() and nrf_twi_sensor_reg_read() ?

[quote userid="95071" url="~/f/nordic-q-a/68508/nrf52832-lis3dh-i2c/280706#280706"]unlike SES I can use this without a license for professional purposes[/quote]

There is a free licence to use SES professionally with Nordic devices

RE: nRF52832 LIS3DH I2C

Karthiknk — Wed, 18 Nov 2020 20:56:16 GMT

1. Yes, the unmodified example builds without any error.

2. I use visual studio code because in the future I'm planning to use this for professional purposes, unlike SES I can use this without a license for professional purposes.

Thank you for the link, I will check it and update if it works.

RE: nRF52832 LIS3DH I2C

awneil — Wed, 18 Nov 2020 16:05:17 GMT

[quote userid="95071" url="~/f/nordic-q-a/68508/nrf52832-lis3dh-i2c"]I used the twi_sensor example[/quote]

So did you get that unmodified example to build cleanly first?

"Undefined Reference" indicates that you have called those functions, but not provided the definitions.

https://devzone.nordicsemi.com/f/nordic-q-a/39503/undefined-reference-on-the-linker-level

[quote userid="95071" url="~/f/nordic-q-a/68508/nrf52832-lis3dh-i2c"]I'm using visual studio coder.[/quote]

Any particular reason not to use Segger Embedded Studio (SES) - for which you get ready-configured projects with the examples ... ?