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mnazemi
Beginner
248 Views

How to convert combinational blocks to sequential blocks automatically?

I have a relatively large combinational block that is mapped to an Intel FPGA using Quartus Prime Pro.

 

I recently learned that an ALM can provide the output either directly from an adaptive LUT or from a register that latches the value of the LUT.

 

I was wondering if it is possible to automatically convert the blocks from combinational to sequential, which results in a deeply pipelined design.

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3 Replies
HBhat2-GRL
New Contributor I
24 Views

Hi,

 

In my view, one need to rewrite the RTL for sequential implementation. It is not possible to map combinational logic to sequential with the help of tool.

The Quartus tool maps the logics based on RTL code either to LUT or registers.

 

With Regards,

HPB

sstrell
Honored Contributor II
24 Views

Without writing code to define the synchronous logic, there's no way the tool can automatically add registers into your design.

 

#iwork4intel

24 Views

Hi,

Yes. You have to write the RTL to use synchronous logic.

 

Thanks.