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Altera_Forum's avatar
Altera_Forum
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11 years ago

FPGA partial reconfiguration granularity

excuse me. in altera PR user guider, it usually specified one column to be the Partial reconfiguration region? could I ask you a question, what is the minimum granularity in the board? Is on...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

You are right! We should first define some things:

- column : single column of LABs or DSPs or memory cells... I agree. A vertical column that can be seen in ChipPlanner.

- frame : A subset of a column, i.e. a column is composed of 20+ frames which cannot be seen ChipPlanner. Not documented. In Xilinx FPGAs each column is composed of several frames. In addition, it is the smallest granularity that can be reconfigured.

I watched the online course as well and nothing has been said about the frames. It seems that one can only reconfigure an entire column in 2 modes you mentioned and not a part of it, ie. a frame.