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how can i implement 3 I2C buses on a STM32 LO family. Although it has 3 these are split across AF6 and AF7 alternative pin mapping ?

Question asked by Davey Surphlis on Jan 22, 2018
Latest reply on Jan 22, 2018 by Clive One

how can i implement 3 I2C buses on a STM32 LO family.

 

looking at the data sheet for pin mapping this are mapped in to PB & PA buses

 

with alternative Mode does not allow all 3 to be expossed, as these are spread across AF6 & AF7

 

Can this part support 3 IC2 buses, or do i need to look at a new part

 

we only need 3 I2C busses and a few GPOI

2 Of these buses must support ARP. so that limits us to L0, L4, F3 families

 

Davey

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