i couldn't able to understand the nrf TWI sensor program

[virigo]

Hi,

i am totally beginner to the nrf  ,i couldn't able to understand the TWI sensor program 

where i will find the API , funtion definition 

 i want to understand each and every line , for this what i want to do 

[awneil]

virigo said:

for understanding the program what are the things i should know

See my other reply: you will need a good understanding of the 'C' programming language, a basic understanding of how I2C works, and a familiarity with microcontrollers in general.

[virigo]

yes i am good in c programming . i know how does it work i2c

[awneil]

So perhaps be a bit more specific as to which part(s) you don't understand?

Knowing how to effectively use your IDE's code browsing facilities (as noted above) is key.

Other standard techniques:

• Use the debugger to step through the code and see what's happening
• instrument your code - with printfs/log output; LEDs; etc - to see what's happening
• Use a logic analyser, oscilloscope, etc, to see what's happening on the actual hardware 

[virigo]

hi awneil , 

i couldn't understand m_xfee_done= false; 

sentence using underscore  i am facing difficulties 

i know the concept but i couldn't able to understand the program step by step 

above pic , that lines are so complicated 

nrf_drv_twi_t_m_twi=NRF_DRV_TWI_INSTANCE ...SO ON  

these type of lines ... i couldn't the api and everything 

[awneil]

virigo said:

i couldn't understand m_xfee_done= false; 

Where, exactly is that?

How to properly post source code:

virigo said:

nrf_drv_twi_t_m_twi=NRF_DRV_TWI_INSTANCE ...SO ON

Again, I don't see that anywhere in your post.

virigo said:

these type of lines

What type of lines?

virigo said:

that lines are so complicated

You said you were "good in c programming"?

It's all standard 'C' syntax - what, specifically do you find hard?