On-line training:
https://www.stmicroelectronics.com.cn/content/st_com/en/support/learning/stm32-education/stm32-online-training/stm32f7-online-training.html
On-line training:
https://www.stmicroelectronics.com.cn/content/st_com/en/support/learning/stm32-education/stm32-online-training/stm32f7-online-training.html
https://mcuoneclipse.com/ did some very usefull tutorials.
You have to look in the archive though, because they are sometimes a couple of years old, still valid of course.
But there is some very good information to find.