making some changes in NoC blocks to be faulty

[mostafa272]

Hi

I have a NoC that is implemented with VHDL. I work on fault tolerant design and I want to make some changes in code to some blocks like input ports or links be faulty, but I don't know how can I do this?I use some bits to show faulty or normal states ,but it's not enough and I should do some modifications in code. please help me.

 

[ads-ee]

Your question is vague, I'm not sure if you are trying to inject faults from input ports of the design or inject faults on internal nodes or improve the fault tolerance of the design?

 

[mostafa272]

I use Atlas Framework that it makes VHDL code for NoC automatically. It uses credit-based communications for flow controling.For testing my design, I need to assume different faults for input ports blocks and links. for input ports,I give it: rx<='0'; to it doesn't recieve any packets from neighbors,but I don't know it is a correct way for fault injecting or not?!
Also,I don't know how can I inject fault to input link of a input port?