VHX	Xilinx - FPGA Programming in VHDL

This course explains how to design with VHDL on Xilinx FPGAs using ISE Design Suite

Objectifs Comprehend the various possibilities offered by VHDL language Implementing state machine Reusing components Understand the logical synthesis notions Knowing the different writing style and their impact on the quality of synthesis results Learning how to write test bench for simulation Knowing the performance that can be expected from Xilinx FPGA Identify critical paths and verify compliance with the timings Learning how to configure compilation options and implementation constraints Manipulating the debug tools and implementation reports

Prerequisites Knowledge of digital technology Concepts of Boolean algebra Some programming concepts are desirable (whatever language) This training is intended to electronic engineers who are willing to acquire a strong designing methodology, and to take the best of VHDL language and the associated synthesis and simulation tools for designing Xilinx FPGA Course environment One PC for two trainees Xilinx ISE Design Suite 13.3 Logic Edition

Related courses MicroBlaze implementation, reference N2 Spartan-6 / Virtex-6 Integrated PCI Express Blockn, reference N2 Designing with Ethernet MAC logicores, reference N2

Plan

Day 1 From the logic gate to the FPGA Structure of an Integrated Circuit SSI (small scale integration), TTL MSI (medium scale integration), PALs, GALs, PLDs LSI (large scale integration), CPLDs VLSI (very large scale integration), ASICs, ASSPs, FPGAs Development of logical architectures Technology constraints Interconnection methods (SRAM, Fuse, AntiFuse, Flash) Clock distribution Logic element types Timing issues Spartan6 and Virtex6 FPGA architecture General structure CLB and slices notion Combinatory logic and registers Arithmetical logic Distributed memory Shift register SRL In/Out blocks In/Out registers DDR registers Timing and electric settings and specificities Dedicated RAM blocks and use modes Customable FIFOs implementation Other example of use Clocks distribution, DCMs & PLLs Global Buffer, local buffer DCMs, PLLs and settings Dedicated multipliers and DSP48 blocks Configuration Master, slave, SPI, BPI, JTAG VHDL Contributions Interest of VHDL programming Different steps of the design Programming Simulation Synthesis Mapping Place and Route Timing Analysis Bitstream generation Day 2 Basic concepts of VHDL Notion of entity / architecture IEEE library use Predefined types and objects Ports, signals, variables Different styles of architecture Component instantiation Practical lab Combinational logic in VHDL Tools for modeling components Concurrent and sequential instructions Allocation Process(Ssensitivity list, Sequential instructions, Variables) Predefined operators and of use extended by using standardized packages Concurrent instructions : when, with select, for generate Practical lab Day 3 Sequential logic in VHDL Flip-flop reminder Reset management Tri-state buffers Synchronous process Practical lab Hardware designing methodology in logical synthesis Asynchronous conception and classic tricks Metastability and hazards of functioning Limits of functional simulation and timing on asynchronous designs: how to get over them?

Asynchronous event management Random Data streams Synchronous design –advantages-methodology-focusing Static timing analysis: how to use it? Optimization of performance irrespective of the target Pipeline notion Practical lab Writing rules of VHDL code in logical synthesis A few tricks to avoid Potential interpretation incoherencies between the logical synthesis and the simulation : how to avoid it Day 4 Hierarchy management for a better use Organization of design by functional modules : what routing to choose Inference and instancing notions When is it important to instantiate primitives or macros ? Precautions for an evolutionary and / or re-usable code Importance of modules’ name selection and of the nets to facilitate the physical implementation, the simulation and the tuning Does the hierarchy have to be preserved during the logical synthesis ? Practical lab Advanced VHDL language for optimization and code re-use in logical synthesis Notion of variable and example of use Genericity and automatic configuration of re-usable modules Useful predefined attributes in logical synthesis Functions and procedures Definition of packages and libraries Practical lab Implementation and tuning tools Implementation stream and bitstream generation Translate Map Place and Route (PAR) BitGen Analysis of MRP and PAR reports Main implementation options MAP PAR BITGEN Implementation results analysis tools - constraints PlanAhead FPGA EDITOR TIMING ANALYZER Introduction to CHIPSCOPE Constraints file Day 5 The state machines Mealy and Moore machines Graphic representations Implementation VHDL translation Design principles of an FSM with two processes Reset of a state machine Simulation usage to verify the design Resource use optimization Practical lab Test benches and simulation A few basic rules for the writing of an efficient test bench VHDL instructions specific to simulation Wait and its various forms « Loop » Assertions Data types Timing verification Others Writing components models intended to make the simulation more realistic Use of existing models and simulation packages Practical lab Integration of « pseudo logic » in order to facilitate the interpretation of the simulation results Writing and reading of ASCII files Allocation of a data flow from a file - Test vector generation Storage of the simulation results in a file Command interpreter Generating information messages Practical lab

 

Durée	Prix	Calendrier
5 jours	2100 €