SYSTEM ON CHIP : Fördelar i konstruktion med system on chip i förhållande till fristående FPGA och processor
In this exam project the investigation has been done to determine, which profits that can be made by switching an internal bus between two chips, one FPGA and a processor, to an internal bus implemented on only one chip, System on Chip.
The work is based on measurements made in real time in Xilinx’s development tools on different buses, AXI4 and AXI4-Light connected to AXI3. The port that is used is FPGA’s own GP-port. Besides measuring the time of transactions also physical aspects have been investigated in this project: space, costs and time. Based on those criteria a comparison to the original construction was made to determine which benefits that can be achieved.
The work has shown a number of results that are in comparison with the original construction. The System on Chip has turned out to be a better solution in most cases. When using the AXI4-Light-bus the benefits were not as obvious. Cosmic radiation, temperature or humidity are beyond the scope of this investigation.
In the work the hypothetic deductive method has been used to prove that the System on Chip is faster than the original design. In this method three statements must be set up against each other; one statement that ought to be true, one statement that is a contradiction and a conclusion of what is proved.
The pre-study pointed out that the System on Chip is a faster solution than the original construction. The method is useful since it proves that the pre-study is comparable to the measured results.
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