twi_scanner for nRF52840DK + nRF Connect SDK

Hi,

Are you referring to this example from nRF5SDK? It's not available in NCS. You would have to implement it by using nrfx

regards

Jared 

Hi Jared:

Thank you for your reply. Yes, it's that example. Ok, I thought it would be an example in all versions of nRF.

I will have to learn a bit about nrfx.

Thank you,

David.

Hi,

It should be fairly similar to implement it in NCS as it's in nRF5SDK.  You can also use this example as a starting point.

Hope it helps

regards

Jared 

Hi there!

Moving forward, I have compiled a version that seems to work (initially). However, I get stuck:

- I execute a successful nrfx_twim_xfer(&i2c_instance, &xdesc, 0)

- My evt_handler doesn't get invoked

- nrfx_twim_is_busy(&i2c_instance) is always true

So i cannot invoke nrfx_twim_xfer any more.

As this is a twim_scanner it is very likely that the address I'm polling doesn't belong to any device (so nobody will never reply), so, my questions:

1. If I poll an address with no device, will the library stay on busy forever?

2. Is there a way to check for a timeout, clear the busy state and run more transfers?

Regards,

David.

Thank you Jared. I'm on my way of developing a working version of the code.

Best,

David.