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JP
Visitor
Visitor
1,144 Views
Registered: ‎06-10-2020

Xilinx Vs Altera Quartus

Dear Sir/Madam

May I know the basic difference between Xilinx and Altera Quartus tool. 

Why both tools gives the different results for the same source code?

I had designed FIR filter and Synthesis same on Xilinx and Altera board. After synthesized both tool gives the different "delay" for the same FIR filter code. So may I Know why it is happened?

 

Thank you

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2 Replies
richardhead
Scholar
Scholar
1,124 Views
Registered: ‎08-01-2012

The most obvious difference is the fact they are different companiues that produce different chips with different architectures. Plus you dont say if it its custom RTL or a block design for either manufacturer.

Usually, for the same source code, the latency should be the same. Why not post the code?

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drjohnsmith
Teacher
Teacher
1,106 Views
Registered: ‎07-09-2009

Give both tools the same RTL code, and both will deliver the same delay in the FIR.

Using say MatLab, the results should be the same, but thats down to matlab not the compilers as MatLab gives the tools just RTL. See above for RTL.

Using a language such as C, or HLS,
then things are much more open to variation,

If its an external IP block, have a chat with the IP providers,
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