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Altera_Forum's avatar
Altera_Forum
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13 years ago

how to start a multicycle process correctly

hi, i would do a large bit subtractor with a multicycle process to relax setup timing. when i receive new data to be subtracted(A ,B), i store them in 2 registers clocked @ 100MHz. Once i have ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I expect the path to end register will be multicycled and that is what you want.

The start_sub_process itself being generated in a register somewhere prior is not involved. So I don't see anything wrong here.

Remember a path is from reg to reg and your multicycle defines "end" correctly. So when you say start_sub_process is multicycled do you mean its start register or end register is multicycled?