I2C doesn't transmit the data correctly

[elshat san]

I am trying to send value 0x75 using I2c but when i check the value using logical analyzer i found it 0x74.
and when i tried to send 0x77 i found it equal to 0x76.
any help please !

used board nRF-52840
SDK version 17.1.0

[elshat san]

the address of the sensor is 0x69 and i want to read from address 0x75.
the first byte is correctly sent but the second byte is not.
this is my logical analyzer data

[Kenneth]

Can you share the file? I think this is from saleae.

Kenneth

[elshat san]

26-4-2022.csv

[Kenneth]

You don't have a .logicdata file? In any case I suggest to take a look at the twi_sensor example project if you haven't already.

Kenneth

[elshat san]

i think my problem is the internal resistance
do you know how to make sure that i am using the internal resistors ?