SCIOPTA Systems has extended the driver support around its safety RTOS for the NXP i.MXRT1064. This includes drivers for the UARTs, CANs and ADC.
SCIOPTA also provides a low level graphics driver based on the mimxrt1064-evk. Additionally an adaption for the PEG Lite GUI library from NXP.

The SCIOPTA RTOS itself is certified according to IEC61508 SIL3, EN 50128 SIL3/4 and ISO 26262 ASIL D. SCIOPTA is royalty free and supports currently the GNU GCC Tool-chain. The drivers are certifiable on customer request.