CAN Multiple Device Master F446RE Slaves F1038CT, F750Programming

[MROWL]

Please advise on the procedure and sequence to upload the codes to the Master ( F446RE) and the Slaves  STMF103C8T , STM32F750. as illustrated in the youTube  tutorial STM CAN Multiple Devices by Controllers Tech. my inquiries to the site have gone unanswered . Has success with STM32 LOOPBACK however , need guidance here 

[MROWL]

Issue Resolved - Controller TecH  responded  MrOWL