Static scheduling of hard real-time code with instruction-level timing accuracy

2002 ◽  
Author(s):  
T.M. Chung ◽  
H.G. Dietz
Keyword(s):  
Real Time ◽  
Time Code ◽  
Timing Accuracy ◽  
Static Scheduling ◽  
Hard Real Time

Asynchronous Hard Real Time Signals Transmission in Embedded Networks

2014 ◽  
Vol 5 (4) ◽  
pp. 24-44 ◽  
Author(s):  
Liudmila Koblyakova ◽  
Yuriy Sheynin ◽  
Elena Suvorova
Keyword(s):  
Real Time ◽  
Signal Transmission ◽  
Aerospace Industry ◽  
Propagation Mechanism ◽  
Time Code ◽  
Embedded Networks ◽  
Control Information ◽  
Performance Requirements ◽  
Time Signals ◽  
Hard Real Time

Nowadays in the aerospace industry the router-based onboard embedded networks gradually replacing bus-based networks because they are already not satisfy the aerospace performance requirements. The SpaceWire, GigaSpaceWire and SpaceFibre standards are developing to meet the increasing aerospace requirements. The important requirement for any aerospace embedded onboard network is a transmission of control information and system signals in hard real time. These signals can be synchronous and asynchronous, periodic and aperiodic, with or without acknowledges. The distributed interrupt mechanism is used for asynchronous signal transmission and it is included into the second edition of SpaceWire standard. The Time-code propagation mechanism is used for synchronous signal transmission in SpaceWire. The broadcast messages mechanism is used for transmission of different system signal in SpaceFibre but it does not quite meet the requirements of hard real time. In this paper the authors consider the asynchronous signals transmission with and without acknowledges. The aims of this paper are following: 1) theoretically investigate the distributed interrupt mechanism; 2) to prove its properties; 3) to specify parameters and limitations; 4) to derive the time characteristics. For these purpose the authors developed the analytical model which describe the distributed interrupt propagation mechanism in terms of the graph theory.

A static scheduling algorithm for distributed hard real-time systems

1991 ◽  
Vol 3 (3) ◽  
pp. 227-246 ◽  
Author(s):  
J. P. C. Verhoosel ◽  
E. J. Luit ◽  
D. K. Hammer ◽  
E. Jansen
Keyword(s):  
Real Time ◽  
Scheduling Algorithm ◽  
Real Time Systems ◽  
Static Scheduling ◽  
Hard Real Time ◽  
Time Systems

scholarly journals Integer Programming Techniques for Static Scheduling of Hard Real-Time Systems

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 170389-170403
Author(s):  
Ana Guasque ◽  
Hossein Tohidi ◽  
Patricia Balbastre ◽  
Jose Maria Aceituno ◽  
Jose Simo ◽  
...  
Keyword(s):  
Integer Programming ◽  
Real Time ◽  
Real Time Systems ◽  
Static Scheduling ◽  
Programming Techniques ◽  
Hard Real Time ◽  
Time Systems

The Goal-Setting Model in a Multiagent Hard Real-Time System

Vestnik MEI ◽  
2018 ◽  
Vol 5 (5) ◽  
pp. 73-78
Author(s):  
Igor В. Fominykh ◽  
◽  
Sergey V. Romanchuk ◽  
Nikolay Р. Alekseev ◽  
◽  
...  
Keyword(s):  
Real Time ◽  
Goal Setting ◽  
Time System ◽  
Real Time System ◽  
Hard Real Time

Efficient Scheduling Algorithm for Hard Real-Time Tasks in Primary-Backup Based Multiprocessor Systems

2009 ◽  
Vol 20 (10) ◽  
pp. 2628-2636 ◽  
Author(s):  
Jian WANG ◽  
Jian-Ling SUN ◽  
Xin-Yu WANG ◽  
Shen-Kang WANG ◽  
Jun-Bo CHEN
Keyword(s):  
Real Time ◽  
Scheduling Algorithm ◽  
Multiprocessor Systems ◽  
Hard Real Time
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