STM32 NUCLEO-F767ZI rs485

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Hi i want to communicate between board with stm8 and board with stm32 the stm8 have rs485 communication bus does STM32 NUCLEO-F767ZI have build it in or i have to buy some extension?

[Tesla DeLorean]

The MCU uses CMOS level signalling

RS485 uses different levels and differential lines

Expect to use suitable transceivers..

The STM32F767ZI should have UARTs capable of single or dual wire modes.

Perhaps look at a schematic for the EVAL series board, or another design, like your STM8 based one, to see how it's implemented at a circuit level.