I2C liaison

RE: I2C liaison

Jared — Wed, 03 Jul 2024 13:37:47 GMT

Hi,

That doesn't look quite correct. Can you share your overlay file and share the whole error log,

regards

Jared

Josselin_11 — Wed, 03 Jul 2024 11:28:28 GMT

So I have an error on the underline function with the message : "expected an expressionC/C++(29)".

Josselin_11 — Wed, 03 Jul 2024 11:27:32 GMT

Hi,

Yes I did.
One of my first problem is the following one, here under.

On my main.c I put this code :
#include <zephyr/kernel.h>

#include <zephyr/drivers/i2c.h>

#define I2C0_NODE DT_NODELABEL(i2c0)

int main(void)

{

static const struct i2c_dt_spec dev_i2c = I2C_DT_SPEC_GET_ON_I2C(I2C0_NODE);

return 0;

}

On my prj.conf, this :

CONFIG_I2C=y

And on my .overlay file, I put this :
i2c0: i2c0@03 {

label ="MSP"

reg = < 0x03 >;

};

I don't want to appear rought, but in my opinion, I find that these lessons are kind of poor and poorly explained.

Regards

Jared — Wed, 03 Jul 2024 10:48:21 GMT

Hi,

Did you see our I2C lesson in the fundamental course on Devacademy? It's pretty extensive and show how to setup a I2C transfer.

Is there anything specific that you did not understand or want elaboration on?

regards

Jared