High-Level Design Features

Here's a quick overview of Vivado™ Design Suite features for Accelerating High-Level Design. Click the other tabs for complete feature details..

Vitis High-Level Synthesis Tool

The advanced algorithms used today in AI, wireless, medical, defense, and consumer applications are more sophisticated than ever before. The Vitis™ High-Level Synthesis tool, included as a no-cost upgrade in all Vivado™ Editions, accelerates IP creation by enabling C++ specifications to be directly targeted into AMD programmable devices without the need for manually creating equivalent RTL designs. The Vitis HLS tool supports both the Vitis and Vivado design environments, and enables software and hardware designers alike to accelerate kernel or IP creation through:

  • Abstraction of algorithmic descriptions, data type specifications with fixed-point or floating-point integers, and interfaces (FIFO, memories, AXI4)
  • Extensive libraries for including built-in support for arbitrary precision data types, streams, and vectorized data types
  • Directive-driven, architecture-aware synthesis with high QoR
  • Fast time to QoR that rivals hand-coded RTL
  • Accelerated verification using C/C++ test bench simulation and automatic VHDL or Verilog simulation and test bench generation
  • Automatic use of AMD on-chip memories and DSP elements, including for floating-point types
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AMD Vitis HLS Diagram

Libraries

The following built-in libraries are included with the Vitis HLS tool:

Name Description

Arbitrary Precision Data Types

Integer and fixed-point (ap_int.h) types

HLS Streams

Models for streaming data structures—designed to obtain best performance and area (hls_stream.h)

Vector types

Vectorized types and operations (hls_vector.h) including for arbitrary precision types

HLS Math

Extensive support for the synthesis of standard C (math.h) and C++ (cmath.h) math libraries.

Support includes floating-point and fixed-point functions: abs, atan, atanf, atan2, atan2, ceil, ceilf, copysign, copysignf, cos, cosf, coshf, expf, fabs, fabsf, floorf, fmax, fmin, logf, fpclassify, isfinite, isinf, isnan, isnormal, log, log10, modf, modff, recip, recipf, round, rsqrt, rsqrtf, 1/sqrt, signbit, sin, sincos, sincosf, sinf, sinhf, sqrt, tan, tanf, trunc

The Vitis HLS tool also supports the Vitis performance-optimized libraries available on GitHub with out-of-the-box acceleration and minimal-to-zero code changes to your existing applications. These common Vitis accelerated-libraries include advanced math, statistics, linear algebra, and DSP to offer core functionalities for a wide range of applications. These libraries offer acceleration for workloads such as vision and image processing with OpenCV functions, quantitative finance, database, data analytics, data compression, and more.

For more information, please visit the Vitis HLS site.

Vivado Ecosystem