Hardware validation of safety critical scheduling

A safety-critical system, comprising:

• an operating system running on one or more processors, wherein a first processor is configured to run execute a frame schedule;
• and
• a hardware device configured to monitor the frame schedule, wherein monitoring the frame schedule includes:
• receiving an indication that a first frame of the frame schedule is in use;
• monitoring a time parameter;
• determining whether an indication that a second frame of the frame schedule is in use is received prior to the expiration of the time parameter;
• and
• when the indication that the second frame of a frame scheduler that is in use is not received prior to the expiration of time parameter, sending a signal to the operating system of the safety-critical system indicating that an error in executing the second frame scheduled has occurred.

An integrated circuit, comprising:

• circuitry configured to receive an indication that a first frame of a frame schedule is being executed by a processor;
• circuitry configured to monitor a time parameter;
• circuitry configured to determine whether an indication that a second frame of the frame schedule is being executed by the processor is received prior to the expiration of the time parameter;
• and
• circuitry configured to send a signal to an operating system of the safety-critical system indicating that an error in executing the second frame scheduled has occurred when the indication that the second frame of a frame scheduler that is in use is not received prior to the expiration of time parameter.