C to FPGA

An interesting video:
C to FPGA Compilation and Domain-Specific Computing
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A tool stack taking C and C variants to FPGA, along with some
findings on different approaches, and at different speed
targets in optimization. Very little concern over power budgets
in their current implementation, but consideration in the
future by additional optimization and / or customization.
Best regards,
Rick C. Hodgin
Reply to
Rick C. Hodgin
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In the video he notes that he had to rewrite the inner loops at a low level to optimize them for hardware synthesis. This is a characteristic of all of these tools: you rewrite it in very low-level code to get it to work we ll in hardware. Guess what? You are now doing hardware engineering. You' ve gained absolutely nothing.
Reply to
Kevin Neilson
What was the mm:ss? I'd like to put his note in context.
Best regards, Rick C. Hodgin
Reply to
Rick C. Hodgin
I watched it again. The toolset is able to take unaltered C code, or System C code, and process it through. An MPEG-4 example showed a target achieved of 30 fps on unaltered code.
The considerations regarding optimization allow for various targets. For some high speed throughput goals the target is not achievable through the toolset due to hardware use limitations on logic units or work per clock. In those cases rewriting C algorithms to lower- level ops can then coax the toolset to produce a solution for your RTL needs. It's an enabler for higher speed goals, but, it is not required in general to produce a workable model for FPGA or ASIC.
Best regards, Rick C. Hodgin
Reply to
Rick C. Hodgin
At about 35 minutes or so he also talks about a startup company that licensed the toolset for commercial use. The presenter said they have expanded the toolset into C++. They are former students of his.
Best regards, Rick C. Hodgin
Reply to
Rick C. Hodgin
The tool he is talking about is xPilot, which was then licensed to AutoESL under the name AutoPilot. The AutoESL was later bought by Xilinx which re-b randed the tool as Vivado HLS. The signs of it previous name still remain i n the names of the types, e.g. ap_int, ap_fixed.
Reply to
Jan Marjanovi?
Thank you! Linked here:
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Best regards, Rick C. Hodgin
Reply to
Rick C. Hodgin

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