Welcome, @tipo1000, to the community!
It will most likely not be possible to use the third I2C of the STM32L072CZ/L082CZ (L082 = L072 + AES) used in the Murata module CMWX1ZZABZ.
Reason:
- I2C1 is already brought out
- I2C2 is used inside the module for the STSAFE
- This leaves only I2C3, which can use pins PA8, PB4, PC0 or PC1. Of these four pins of the STM32, only PA8 (module pin 21, MCO) is accessible, so you shouldn't be able to use the I2C3.
Good luck anyway!
If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.
/Peter
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