how does nrf_drv_twi_tx write to 16-bit register address

[Qec1312]

hello everyone, 

I am learning TWI, need to send 16-bit address, is there a sample reference?

Thanks!

[awneil]

Qec1312 said:

I am learning TWI

Do you mean TWI (I2C) itself, or just the "TWI" peripheral functions within the nRF52832 ?

Of course, an understanding of I2C itself is necessary to understand Nordic's implementation of it.

To learn about I2C itself, start with the Official Specification:

https://www.nxp.com/docs/en/user-guide/UM10204.pdf

There are plenty of other tutorials & learning materials on I2C itself; eg, 

https://en.wikipedia.org/wiki/I%C2%B2C

https://www.digikey.co.uk/en/articles/why-the-inter-integrated-circuit-bus-makes-connecting-ics-so-easy

https://learn.sparkfun.com/tutorials/i2c

Note that I2C itself has no notion of "registers" - that's just to do with the particular Slave you're talking to.

As far as I2C itself is concerned, it's all just data.

www.avrfreaks.net/.../2884216

https://www.avrfreaks.net/comment/2884306#comment-2884306

https://www.avrfreaks.net/comment/2884371#comment-2884371