High-Level Synthesis with the Vitis HLS Tool

Course Description

This course provides a thorough introduction to the Vitis™ High-Level
Synthesis (HLS) tool.

The focus is on:

  • Covering synthesis strategies and features

  • Applying different optimization techniques

  • Improving throughput, area, interface creation, latency, testbench coding, and coding tips

  • Utilizing the Vitis HLS tool to optimize code for high-speed performance in an embedded environment

  • Downloading for in-circuit validation

What's New for 2020.2

  • Migrated course content from the Vivado HLS tool to the Vitis

  • HLS tool

  • Added new directives that are supported in the Vitis HLS tool

  • New module on migrating to the Vitis HLS tool

  • All labs have been updated to support the Vitis HLS tool



Course Duration

  • 2 days

Course Part Number


Who Should Attend?

​Software and hardware engineers looking to utilize high-level synthesis


  • C/C++ programming language

  • High-level synthesis for software engineers OR high-level synthesis for hardware engineers


Software Tools

  • Vitis HLS tool 2020.2

  • Vivado Design Suite 2020.2

  • Vitis unified software platform 2020.2


  • Architecture: Zynq® UltraScale+™ MPSoC

  • Demo board: Zynq UltraScale+ MPSoC ZCU104 board (Optional)

Skills Gained

​After completing this comprehensive training, you will have the necessary skills to:

  • Enhance productivity using the Vitis HLS tool

  • Describe the high-level synthesis flow

  • Use the Vitis HLS tool for a first project

  • Identify the importance of the test bench

  • 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 Vitis HLS


Course Outline


Day 1

  • Introduction to High-Level Synthesis

Overview of high-level synthesis (HLS), the Vitis HLS tool flow,and the verification advantage. {Lecture}

  • Vitis HLS Tool Flow

Explores the basics of high-level synthesis and the Vitis HLS tool. {Lecture, Demo, Lab}

  • Design Exploration with Directives

Explores different optimization techniques that can improve the design performance. {Lecture}

  • Vitis HLS Tool Command Line Interface

Describes the Vitis 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 the block-level and port-level protocols abstracted by the Vitis HLS tool from the C design. {Lecture}

  • Block-Level I/O Protocols

Explains the different types of block-level protocols abstracted by the Vitis HLS tool. {Lecture, Lab}

  • Port-Level I/O Protocols

Describes the port-level interface protocols abstracted by the Vitis 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 Vitis HLS tool. {Lecture, Demo}

  • Port-Level I/O Protocols: Memory Interfaces

Describes the memory interface port-level protocols (such as block RAM and FIFO) abstracted by the Vitis HLS tool from the C design. {Lecture, Lab}

  • Pipeline for Performance: PIPELINE

Describes the PIPELINE directive for improving the throughput of a design. {Lecture, 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

Identify the performance limitations caused by arrays in your design. You will also explore optimization techniques to handle arrays for improving performance. {Lecture, Demo, Lab}

  • Vitis HLS Tool Default Behavior: Latency

Describes the default behavior of the Vitis 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}

  • Migrating to the Vitis HLS Tool

Reviews key considerations when moving from the Vivado HLS tool to the Vitis HLS tool.{Lecture}

  • HLS Design Flow – System Integration

Describes the traditional RTL flow versus the Vitis HLS tool design flow. {Lecture, Lab}

  • Vitis HLS Tool C Libraries: Arbitrary Precision

Describes Vitis HLS tool support for the C/C++ languages as well as arbitrary precision data types. {Lecture, Lab}

  • Hardware Modeling

Describes hardware modeling with streaming data types and shift register implementation using the ap_shift_reg class. {Lecture}

  • Using Pointers in the Vitis HLS Tool

Explains the use of pointers in the design and workarounds for some of the limitations. {Lecture}



TechSource Systems is the Sole Distributor and Authorised Training Partner of Mathworks Products

Upcoming Program

xilinx ATP 黑.png