Programmable Logic Design Quick Start Handbook

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PROGRAMMABLE LOGIC DESIGN -- QUICK START HANDBOOK • CHAPTER 4 You can toggle the line numbers in the side bar on or off and place bookmarks to mark lines of interest in the source file. FIGURE 4-7: COUNTER IN VHDL WINDOW A typical VHDL module consists of library declarations, an entity, and an architecture. The library declarations are needed to tell the compiler which packages are required. The entity declares all ports associated with the design. Count (3 down to 0) means that count is a 4-bit logic vector. This design has two inputs – clock and reset – and one output, a 4-bit bus called “count.” The actual functional description of the design appears after the begin statement in the architecture. The function of this design is to increment a signal “count” when clock = 1 and there is an event on the clock. This is resolved into a positive edge. The reset is asynchronous as is evaluated before the clock action. Xilinx • 106
WEBPACK ISE DESIGN ENTRY The area still within the architecture – but before the begin statement – is where declarations reside. We’ll give some examples of component and signal declarations later in this chapter. SAVE THE COUNTER MODULE You can now simulate the counter module of the design. With “counter.vhd” highlighted in the Source window, the Process window will give all the available operations for that particular module. A VHDL file can be synthesized and then implemented through to a bitstream. Normally, a design consists of several lower-level modules wired together by a top-level file. This design currently only has one module that can be simulated. Functional Simulation To simulate a VHDL file, you must first create a testbench. From the Project menu, select “New Source” as before. Select “Test Bench Waveform” as the source type and give it the name “counter_tb.” FIGURE 4-8: NEW SOURCE WINDOW Xilinx • 107
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Programmable Logic Design Quick Sta
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ABSTRACT Whether you design with di
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NAVIGATING THIS BOOK C HAPTER 5: IM
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TABLE OF CONTENTS Virtex FPGAs.....
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TABLE OF CONTENTS MicroBlaze and Pi
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Chapter 7: Design Reference Bank TA
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C HAPTER 1 Introduction The History
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INTRODUCTION Other architectures fo
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INTRODUCTION vides an instant hardw
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INTRODUCTION FIGURE 1-4: FPGA ARCHI
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INTRODUCTION By using Xilinx CoolRu
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INTRODUCTION FIGURE 1-8: DESIGN SPE
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INTRODUCTION For the HDL specificat
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INTRODUCTION Even if you decide to
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INTRODUCTION original I/O pin place
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INTRODUCTION FIGURE 1-11: DEVICE IM
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C HAPTER 2 Xilinx Solutions Introdu
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XILINX SOLUTIONS The Platform FPGA
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. XILINX SOLUTIONS FIGURE 2-2: PLAT
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XILINX SOLUTIONS FIGURE 2-4: SPARTA
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XILINX SOLUTIONS • Full- and half
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TABLE 2-3: SPARTAN-3 FEATURES AND B
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XILINX SOLUTIONS FIGURE 2-10: SPART
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Delay-Locked Loop XILINX SOLUTIONS
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XILINX SOLUTIONS FIGURE 2-15: SPART
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XILINX SOLUTIONS Low Power - Is you
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XILINX SOLUTIONS XC9500XL family is
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XILINX SOLUTIONS TABLE 2-5: XC9500X
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XILINX SOLUTIONS caded chain of pur
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XILINX SOLUTIONS FIGURE 2-22: COOLR
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I/O Cell XILINX SOLUTIONS The outpu
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TABLE 2-6: VFM (Variable Function M
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Page 79 and 80: XILINX SOLUTIONS These security bit
Page 81 and 82: XILINX SOLUTIONS COOLRUNNER REFEREN
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Page 85 and 86: XILINX SOLUTIONS To address the nee
Page 87 and 88: XILINX SOLUTIONS This rich mixture
Page 89 and 90: Dynamic Verification XILINX SOLUTIO
Page 91 and 92: XILINX SOLUTIONS Xilinx IP Cores Th
Page 93 and 94: XILINX SOLUTIONS • Test and Measu
Page 95 and 96: XILINX SOLUTIONS be fixed, upgraded
Page 97 and 98: XILINX SOLUTIONS TABLE 2-10: XILINX
Page 99 and 100: XILINX SOLUTIONS CONNECTIVITY CENTR
Page 101 and 102: XILINX SOLUTIONS design • Broad a
Page 103 and 104: Xilinx Student Edition Frequently A
Page 105 and 106: C HAPTER 3 WebPACK ISE Design Softw
Page 107 and 108: WEBPACK ISE DESIGN SOFTWARE 4. Gene
Page 109 and 110: WEBPACK ISE DESIGN SOFTWARE WEBPACK
Page 111 and 112: Summary PROJECTS WEBPACK ISE DESIGN
Page 113 and 114: C HAPTER 4 WebPACK ISE Design Entry
Page 115 and 116: WEBPACK ISE DESIGN ENTRY FIGURE 4-2
Page 117 and 118: WEBPACK ISE DESIGN ENTRY Notice tha
Page 119: WEBPACK ISE DESIGN ENTRY As you hav
Page 123 and 124: WEBPACK ISE DESIGN ENTRY Click OK t
Page 125 and 126: WEBPACK ISE DESIGN ENTRY Maximize t
Page 127 and 128: WEBPACK ISE DESIGN ENTRY Open the S
Page 129 and 130: WEBPACK ISE DESIGN ENTRY Set RD to
Page 131 and 132: WEBPACK ISE DESIGN ENTRY In the edi
Page 133 and 134: Click on the Generate HDL button on
Page 135 and 136: WEBPACK ISE DESIGN ENTRY Click on t
Page 137 and 138: WEBPACK ISE DESIGN ENTRY Connect th
Page 139 and 140: You are now ready to go to the impl
Page 141 and 142: WEBPACK ISE DESIGN ENTRY Move the c
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Page 145 and 146: C HAPTER 5 Implementing CPLDs Intro
Page 147 and 148: IMPLEMENTING CPLDS The design shoul
Page 149 and 150: IMPLEMENTING CPLDS Notice that the
Page 151 and 152: DoubLe-click in the Period window o
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Page 155 and 156: IMPLEMENTING CPLDS Click on the “
Page 157 and 158: IMPLEMENTING CPLDS To open the CPLD
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Page 161 and 162: C HAPTER 6 Implementing FPGAs Intro
Page 163 and 164: IMPLEMENTING FPGAS Double-click on
Page 165 and 166: IMPLEMENTING FPGAS The FSM encoding
Page 167 and 168: IMPLEMENTING FPGAS The Constraints
Page 169 and 170: IMPLEMENTING FPGAS Highlight the th
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IMPLEMENTING FPGAS Save and close t
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IMPLEMENTING FPGAS Programming Righ
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C HAPTER 7 Design Reference Bank In
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DESIGN REFERENCE BANK A high-powere
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DESIGN REFERENCE BANK USING A MICRO
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DESIGN REFERENCE BANK port ( clk :
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DESIGN REFERENCE BANK vated, it wil
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DESIGN REFERENCE BANK Figure 7-7 sh
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DESIGN REFERENCE BANK Full-function
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DESIGN REFERENCE BANK TABLE 7-1: DO
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DESIGN REFERENCE BANK TABLE 7-1: DO
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ACRONYMS ABEL ADC AIM ANSI ASIC ASS
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ACRONYMS LVDS Low Voltage Different
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PROGRAMMABLE LOGIC DESIGN -- QUICK
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Programmable Logic Design Quick Start Handbook

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