TWI SW setting the frequency rate ( cant find )

Question

Hello! 
 Looking around and reading a bunch of posts, I found little information on how to initialize the TWI sw frequency, which currently is 100 kHz( calculated it with a test). Is there are way to init the Frequency rate for the TWI software ? Setting the frequency rate manually, on the HW version is easy.But what about the SW version , is the TWI always on 100kHz?
Regards, Volkan

Stian Røed Hafskjold · Accepted Answer

Since the SW version uses bit-banging it doesn't really make any sense to "init the frequency rate". The change on the GPIOs happens as fast as the processor is able to process the code. So, a factor that determines the speed is how well the code is optimized. 
 In twi_master.h you have a NRF_DELAY() definition, which is used some places in the twi_sw_master.c code. You can try to set this to 1us. Or maybe remove it completely.

TWI SW setting the frequency rate ( cant find )

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