This STM32F746 code describes how to perform I2C data buffer transmission/reception between two boards using an interrupt.

I2C_TwoBoards_ComIT\EWARM\Project.ewd
...................\.....\Project.ewp
...................\.....\Project.eww
...................\.....\startup_stm32f746xx.s
...................\.....\stm32f746xx_flash.icf
...................\Inc\main.h
...................\...\stm32f7xx_hal_conf.h
...................\...\stm32f7xx_it.h
...................\MDK-ARM\Project.uvoptx
...................\.......\Project.uvprojx
...................\.......\startup_stm32f746xx.s
...................\readme.txt
...................\Src\main.c
...................\...\stm32f7xx_hal_msp.c
...................\...\stm32f7xx_it.c
...................\...\system_stm32f7xx.c
...................\.W4STM32\startup_stm32f746xx.s
...................\........\STM32746G_DISCOVERY\.cproject
...................\........\...................\.project
...................\........\...................\STM32F746NGHx_FLASH.ld
...................\........\STM32746G_DISCOVERY
...................\EWARM
...................\Inc
...................\MDK-ARM
...................\Src
...................\SW4STM32
I2C_TwoBoards_ComIT

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