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Showing content with the highest reputation on 05/14/2019 in all areas

  1. 1 point
    Xilinx HLS tools have very limited SystemC support, you should probably code your FFT in pure C++.
  2. 1 point
    You paint a very bleak and incorrect picture of the HLS tool. I will suggest that you need to get some training on its use. Xilinx have many examples and their documentation is quite good. Document UG902 clearly documents the HLS math library which supports all manner of synthesizable operations. For instance: Trigonometric Functions: acos, atan, cospi, acospi, atan2, sin, asin, atan2pi, sincos, asinpi, cos, sinpi, tan, tanpi Hyperbolic Functions: acosh, asinh, cosh, atanh, sinh, tanh Exponential Functions: exp, exp10, exp2, expm1, frexp, idexp, modf Logarithmic Functions: ilogb, log, log10, log1p Power Functions: cbrt, hypot, pow, rsqrt, sqrt Error Functions: erf, erfc Gamma Functions: lgamma, lgamma_r, tgamma Rounding Functions: ceil, floor, llrint, llround, lrint, lround, nearbyint, rint, round, trunc and that's only a few. Perhaps your grasp of C++ and what can or cannot be synthesized is limited. For instance, dynamically allocated memory is forbidden because it is not reasonable to expect silicon to grow new logic during operation. Please read the fine manual (RTFM).
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