NRF52 soft i2c problem

[Amigo]

Hi. I tri to use my soft i2c lib It works well at nrf51 and other mcu's. But nrf52 i2c_read doesnt works properly. Other funcs works well.

When i read byte from i2c slave the adress write operation is executing well, after when nrf52 started to read a byte it's clock signal goes down to lesss then 0.5 volts

My i2c.c .h files Further i2c.c i2c.h

[raccoon]

Why is the SCLK line not "sitting" at logic high? Do you have external pull-ups? Can you give us more information about the circuit you have?

[Amigo]

Now i've solved that problem rewrite the library. There was a problem with scl pin waiting by master via data reception.