C-based Design: High-Level Synthesis with the Vivado HLx Tool

Course Description

The course provides a thorough introduction to the Vivado® High-Level Synthesis (HLS) tool. This course covers synthesis strategies, features, improving throughput, area, interface creation, latency, testbench coding, and coding tips. Utilize the Vivado HLS tool to optimize code for high-speed performance in an embedded environment and download for in-circuit validation.

What’s New for 2020.1

  • Introduction to High-Level Synthesis: Added the RTL black-box feature, which enables the integration of a pre-existing RTL IP into an HLS design.
  • Introduction to I/O Interfaces: Updated the graphics to make sure they point to proper block-level or port-level interfaces.
  • Vivado HLS Tool C Libraries: Arbitrary Precision: Added more information on floating-point cores.
  • HLx Design Flow –System Integration: Added Zynq® UltraScale+™ ZCU104 board support to the lab.
  • Accelerating OpenCV Applications Using Vivado HLS Video Libraries: Added more information on using OpenCV in FPGA designs



Course Duration

2 days


Software and hardware engineers looking to utilize high-level synthesis


  • C, C++, or System C knowledge
  • High-level synthesis for software engineers OR high-level synthesis for hardware engineers

Software Tools

  • Vivado HLx 2020.1
  • Vitis™ development environment 2020.1


  • Architecture: Zynq UltraScale+ MPSoC*
  • Demo board: ZynqUltraScale+ MPSoC ZCU104 board*

* This course focuses on the Zynq UltraScale+ MPSoC architecture. Check with your local Authorized Training Provider for the specifics of the in-class lab board or other customizations

Skills Gained

After completing this comprehensive training, you will know how to:

  • Enhance productivity by using the Vivado HLS tool
  • Describe the high-level synthesis flow
  • Use the Vivado tool HLS for a first project
  • Identify the importance of the testbench
  • Use directives to improve performance and area and select RTL interfaces
  • Identify common coding pitfalls as well as methods for improving code for RTL/hardware
  • Perform system-level integration of IP generated by the Vivado HLS tool
  • Describe how to use OpenCV functions in the Vivado HLS tool

Course Outline

Day 1

  • Introduction to High-Level Synthesis – Overview of the High-level Synthesis (HLS), Vivado HLS tool flow, and the verification advantage. {Lecture}
  • Vivado HLS Tool Flow – Explore the basics of high-level synthesis and the Vivado HLS tool. {Lecture, Demo, Lab}
  • Design Exploration with Directives – Explore different optimization techniques that can improve the design performance. {Lecture}
  • Vivado HLS Tool Command Line Interface – Describes the Vivado HLS tool flow in command prompt mode. {Lecture, Lab}
  • Introduction to HLS UltraFast Design Methodology – Introduces the methodology guidelines covered in this course and the HLS UltraFast Design Methodology steps. {Lecture}
  • Introduction to I/O Interfaces – Explains interfaces such as block-level and port-level protocols abstracted by the Vivado HLS tool from the C design. {Lecture}
  • Block-Level I/O Protocols – Explains the different types of block-level protocols abstracted by the Vivado HLS tool. {Lecture, Lab}
  • Port-Level I/O Protocols – Describes the port-level interface protocols abstracted by the Vivado HLS tool from the C design. {Lecture, Demo, Lab}
  • Port-Level I/O Protocols: AXI4 Interfaces – Explains the different AXI interfaces (such as AXI4-Master, AXI4-Lite (Slave), and AXI4-Stream) supported by the Vivado HLS tool. {Lecture, Demo}
  • Port-Level I/O Protocols: Memory Interfaces – Describes the memory interface port-level protocols (such as block RAM, FIFO) abstracted by the Vivado HLS tool from the C design. {Lecture, Lab}
  • Port-Level I/O Protocols: Bus Protocol – Explains the bus protocol supported by the Vivado HLS tool. {Lecture}
  • Pipeline for Performance: PIPELINE – Describes the PIPELINE directive for improving the throughput of a design. {Lecture, Demo, Lab}

Day 2

  • Pipeline for Performance: DATAFLOW – Describes the DATAFLOW directive for improving the throughput of a design by pipelining the functions to execute as soon as possible. {Lecture, Lab}
  • Optimizing Structures for Performance – Learn the performance limitations caused by arrays in your design. You will also learn some optimization techniques to handle arrays for improving performance. {Lecture, Demo, Lab}
  • Data Pack and Data Dependencies – Learn how to use DATA_PACK and DEPENDENCE directives to overcome the limitations caused by structures and loops in the design. {Lecture}
  • Vivado HLS Tool Default Behavior: Latency – Describes the default behavior of the Vivado HLS tool on latency and throughput. {Lecture}
  • Reducing Latency – Describes how to optimize the C design to improve latency. {Lecture}
  • Improving Area and Resource Utilization – Describes different methods for improving resource utilization and explains how some of the directives have impact on the area utilization. {Lecture, Lab}
  • HLx Design Flow –System Integration – Describes the traditional RTL flow versus the Vivado HLx design flow. {Lecture, Lab}
  • Vivado HLS Tool C Libraries: Arbitrary Precision – Describes the Vivado HLS tool support for the C/C++ languages, as well as arbitrary precision data types. {Lecture, Lab}
  • Hardware Modeling – Explains hardware modeling with streaming data types and shift register implementation using the ap_shift_reg class. {Lecture}
  • Accelerating OpenCV Applications Using Vivado HLS Video Libraries – Explains the OpenCV design flow and the Vivado HLS tool support. {Lecture, Lab}
  • Using Pointers in the Vivado HLS Tool – Explains the use of pointers in the design and workarounds for some of the limitations. {Lecture}


15 februari 2021 - 16 februari 2021

On Request

Online or Heesch

€ 0,00
20 Xilinx Training Credits

Training brochure


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