Can not add twi function.

[agishii]

Hello I'm new of nRF seriese.

nRF51822CEAAD00(0x004d) SD130 ver2.0.1 kail Ver5.18 SDK11.0.0

I just finished the tutorial and now I'm making my new project with twi function. I had done with the tutorial of "our service" and it works well. Then, I made a project based on the "our service" project, and

1. add the "nrf_drv_twi.c" in the project,

2. add a line of "const nrf_drv_twi_t twi = NRF_DRV_TWI_INSTANCE(0);".

But I can not compile it. The error is like below. How should I do for using twi function?? The path is right, the c file exist, and I rebuild many times.

[Jorge]

you need to add to the includes, not sure if already did. Press "Options for Target" and then go to the "C/C++" tab, there you need to include of the librarie you added to the "Include Paths".

If you already did this, see if the file is in the right place on the folders.

[agishii]

Thank you for reply.

I already add the include path, and I checked the file both "nrf_drv_twi.c" and "nrf_drv_twi.d" are exist.

[Jorge]

Can you put a printscreen with the Build output window? Are you building or rebuilding?

[agishii]

[agishii]

Thank you very much Jorge. The out put is this. It shows "TWI0_xxx is undefined". But even other example that works well with twi function, when I do "Goto definesion of TWI0_xx" it shows undefined too.