Solved
I'm working with B-L072Z-LRWAN1 and the STM32CubeExpansion_LRWAN_V1.3.1. But when I thy to communicate using I2C i get locked waiting for I2C_FLAG_TXIS be SET.
This is how I configurated the I2C
This is the part I'm geting locked.
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I found the solution, I just change the code flow to make it initialize the I2C by last
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