I am new to LPC4300 and multicore. I saw few examples in LPCOpen. There were examples with RTOS and without. As a beginner it is confusing if I should use RTOS or not. I have attached the link where I found the examples LPCOpen Software for LPC43XX|NXP . My question is , is RTOS necessary for working in dual-core mode ? I just wanted to experiment the IPC with simple examples like M4 turning ON LED and M0 turning it OFF.