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I2C problems

Posted: Wed Apr 17, 2019 1:01 pm
by Jan Lichtenbelt
I have a flowcode working correctly with an I2C IC. Now I made a new hardware and now flowcode stops in communication with in IC.
The first sotware step is to initilise the I2C. The next step in the start the IC. So far so good. The third step is to send the salve address. But here the programm stops. (a LCD message after this step is never reached).
Does this mean the I2C communication is not correct? But why did it not start at the initilaise and/or start setp?

Kind regards

Jan

Re: I2C problems

Posted: Wed Apr 17, 2019 1:39 pm
by Jan Lichtenbelt
Sorry, I forgot the pull up resistances on the SDAT and SCL of the I2C IC.