I am following this "C to VHDL" thing now for 15 years. Mentor had a
tool to do that already in 2005.
Up to now, the basic issue never changed:
C/C++ has not the options to define those things which are required to
generate an application specific hardware. But exactly this is the point
about FPGA programming: Defining an intelligent solution for a specific
problem. Then they become efficient. And they become very efficient if
you manage to think of an intelligent hardware structure. If MATLAB HDL
Coder oder Xilinx HLS should be able to find this from the C definition,
first the C definition had to contain the solution and MATWORKS or
XILINX must have taken this particular idea into account and must have
put in into the library.
Both ist not the case.
This way you can only get a standard hardware which performs your
function and shun some work in balancing the timing and simplfy vector
width handling and trimming of calculations.
The vast majority of the solution anyway is getting known and existing
cores instatiated automatically instead of instatiating them manually by
copy and paste.
Am 10.01.2020 um 11:25 schrieb Patric Schmitz:
Hi Theo,
I believe the link should be:
https://www.youtube.com/watch?v=kfWNfjcIO2Q
Thanks for sharing,
Patric
On 1/10/20 11:18 AM, Theo Verelst wrote:
Hi all
Maybe it's not everybody's cup of tea, but I recall some here are
(like me) interested in
music applications of FPGA based signal processing. I made a video
showing a real time
"Silicon Compile" and test program run on a Zynq board using Xilinx's
Vivado HLS to create
an FPGA bit file that initializes a 64k short integer fixed point sine
lookup table
(-pi/2 .. pi/2) which can be used like a C function with argument
passing by a simple test
program running on ARM processors.
The main point is the power the C compilation can provide the FPGA
with, and to see the use of the latest 2019.2 tools at work with the
board, some may find that useful or
entertaining:
https://youtu.be/Nel6QAvmGcs
Theo V
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