Xilinx PCI-X v5.1 manuale d’uso

R LogiCORE™ IP Initiator/T ar g et v5.1 f or PCI-X™ Getting Star ted Guide UG158 Mar ch 24, 2008[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com UG158 March 24, 2008 Xilinx is disclosing th is Document and Intellectual Prope r ty (her einafter “the Design”) to you fo r use in the dev elopment of de signs to operate on, or in terface with Xilinx FPGAs. Except as stated herein, none of the Design ma y be cop ied, reproduced, distribute[...]

www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 04/04/02 2.2.1 Updated trademarks page in ug000_title.fm . 06/24/02 3.0 Initial Xilinx release of corpora te-wide common template set, used f or User Guides, T utorials, Release Notes, Manuals, an d ot her lengthy , multiple-chapter documents created by both CMP and ITP . See[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com UG158 March 24, 2008 10/10/07 9.5 Updated for IP2 Jade Minor release. Added section r egarding configuration pins to device family chapter . 3/24/08 10.0 Updated tools for IP0K r elease. V ersion Revision[...]

www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Schedule of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Preface: About This Guide Guide Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com UG158 March 24, 2008 Verilog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 VHDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 1: Getting Started Chapter 2: Licensing the Co re Chapter 3: Family Specific Considerations Figure 3-1: PCI/PCI-X Output Drive r VCCO Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Chapter 4: Functional Simulation Chapter 5: Synthesizing a Design [...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com UG158 March 24, 2008[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 9 UG158 March 24, 2008 R Pr eface About This Guide The Initiator/ T arget v5.1 for PCI-X Getting Started Guide provides inf ormation about the LogiCORE™ IP interface cor e for Peripheral Component Inter connect Extended (PCI-X), which provides a fully verified, pre-implem ented PCI-X bus inter[...]

10 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Preface: About This Guide R Con ventions T ypographical The following typographical conventions are used in this document: Con vention Meaning or Use Example Courier font Messages, prompts, and program files that the system displays speed grade: - 100 Courier bold Literal [...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 11 UG158 March 24, 2008 Con ventions R Online Document The following conventions ar e used in this document: Con vention Meaning or Use Example Blue text Cro ss -ref ere nc e li nk to a location in the current document See “Additional Resources” for details. See “T itle Formats” in Chapt[...]

12 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Preface: About This Guide R[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 13 UG158 March 24, 2008 R Chapter 1 Getting Started The Initiator/T arget core for PCI-X pr ovides a fully verified, pr e-implemented PCI-X bus interface tar geted for devices based on the V irtex architectur e. This chapter provides information about the example design, resour ce s for addition[...]

14 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 1: Getting Star ted R Step-by-step instructions using supported de sign tools are pr ovided in this guide to simulate, synthesize, and implement the User app example design. Additional Documentation For more information about the cor e interface, see the following [...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 15 UG158 March 24, 2008 R Chapter 2 Licensing the Cor e This chapter provides instructions for installing and obtaining a license for the Initiator/T arget cor e for PCI-X, which you must do befor e using it in your designs. The core is pr ovided under the terms of the Xilinx LogiCORE Site Licen[...]

16 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 2: Licens ing the Core R Full License The Full license is pr ovided when you purchase the core, and pr ovides full access to all core f unctionality both in simulation and in hardwar e, including: • Gate-level functional simulation support. • Back annotated gat[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 17 UG158 March 24, 2008 R Chapter 3 Family Specific Considerations This chapter pr ovides important design information specific to the cor e interface targeting Vi r t e x d e v i c e s . Design Suppor t Ta b l e 3 - 1 provides a list of supported device and interface combinations, consisting of[...]

18 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 3: Fa mily Sp ecific Considerati ons R 2VP7-FF672-6C/I 66 MHz PCI-X 3.3V 64-bit pcix_lc_64x pcix_core 2vp7ff672_64x.ucf 2VP7-FF672-6C/I 100 MHz PCI-X 3.3V 64-bit pcix_lc_64xf pcix_fast 2vp7ff672_64xf.ucf 2VP7-FF672-6C/I 133 MHz PCI-X 3.3V 64-bit pcix_lc_64xf pcix_f[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 19 UG158 March 24, 2008 Design Support R 2VP40-FF1 152-6C/I 66 MHz PCI-X 3.3V 64-bit pcix_lc_64x pcix_core 2vp40ff1 152_6 4x.ucf 2VP40-FF1 152-6C/I 100 MHz PCI-X 3.3V 64-bit pcix_lc_64xf pcix_fast 2vp40ff1 152_6 4xf.ucf 2VP40-FF1 152-6C/I 133 MHz PCI-X 3.3V 64-bit pcix_lc_64xf pcix_fast 2vp40ff1[...]

20 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 3: Fa mily Sp ecific Considerati ons R Wrapper Files W rapper files contain an instance of the core in terface and its simulation model, as well as the instances of all I/O elements used by the cor e interface. Each wrapper file is specif ic to a particular impleme[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 21 UG158 March 24, 2008 Device Initialization R Device Initialization Immediately after FPGA config uration, both th e core interface and the user application are initialized by the startup mechanism present in all V irtex devices. During normal operation, the assertion of RST# on the PCI-X bus [...]

22 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 3: Fa mily Sp ecific Considerati ons R bitstr eam is in use. When this occurs, external cir cuitry is responsi ble for re- initializing the FPGA and loading an alternate bitstr eam. This requir es storage for two complete bitstreams and an other device, such as a C[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 23 UG158 March 24, 2008 Electrical Compliance R It is important to note that the frequency of th is clock is not guaranteed to be constant. In fact, in a compliant system, the cl ock may be any frequency , up to and includ ing the maximum allowed fre quency , and the frequenc y may change on a c[...]

24 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 3: Fa mily Sp ecific Considerati ons R Input Dela y Buffers Input delay buf fers ar e used to pr ovide guaranteed hold time on all bus inputs when in PCI bus mode. Wher e possible, the core interface tar geting V irtex devices uses input delay elements present in t[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 25 UG158 March 24, 2008 Generating Bi tstreams R Generating Bitstreams The bitstream generation pr ogram, bitgen, may issue DRC warnings when generating bitstr eams for PCI-X designs. The number of these warnings varies depending on the configuration options used fo r the PCI-X core. T ypically [...]

26 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 3: Fa mily Sp ecific Considerati ons R[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 27 UG158 March 24, 2008 R Chapter 4 Functional Simulation This chapter describes how to simulate the User app example design using the supported functional simulation tools. If you ar e usin g a design with refer ence clocks, substitute pcix_top with pcix_top_r and test_tb with test_tb_r . Suppo[...]

28 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 4: Functional Sim ulation R ../../src/xpci/pcix_lc.v ../../src/xpci/pcix_core.v +libext+.vmd+.v -y <Xilinx Install Path>/verilog/src /unisims -y <Xilinx Install Path>/verilog/src /simprims This subset list does not include an y conf iguration file, user[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 29 UG158 March 24, 2008 Mentor Graphics ModelSim R Most of the files listed ar e related to the exampl e design and its test bench. For other test benches, the following subset must be used for proper simulation of the cor e interface: ../source/glbl.v ../../src/xpci/pcix_lc.v ../../src/xpci/pci[...]

30 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 4: Functional Sim ulation R vlib simprim vcom -93 -work simprim <Xilinx Install Path>/vhdl/src/simprims/simprim_Vpackage_mti.vhd vcom -93 -work simprim <Xilinx Install Path>/vhdl/src/simprims/simprim_Vcomponents_mti.vhd vcom -93 -work simprim <Xilinx[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 31 UG158 March 24, 2008 R Chapter 5 Synthesizing a Design This chapter describes the use of supported synthesis tools usi ng the Use rapp example design for step-by-step ins tructions and illustrations. If you are using a design with ref eren ce cl oc ks, su bst it ut e pcix_top with pcix_top_r [...]

32 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 5: Synthesizing a Design R 2. Under File T ype, select Proje ct File and enter the proje ct name ( flowtest in this example) and synthesis directory: <Install Path>/verilog/example/synth esis 3. Click OK to return to the project window ( Figure 5-2 ). 4. T o [...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 33 UG158 March 24, 2008 Synplicity Synplify R 5. Navigate to the virtex.v file ( Figur e 5-3 ); then click Add to move this source file into the Files T o Add list . The next files ar e located in: <Install Path>/verilog/src/xpci 6. Navigate to the xpci directory ( Fi gure 5-4 ), select th[...]

34 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 5: Synthesizing a Design R 7. Navigate to the source dir ectory ( Figure 5-5 ), select the cfg_test_s.v , pcix_top.v , and userapp.v files, and the n click Add. 8. After adding the three final file s (for a total of six sou r ce file s), click OK to r eturn to the [...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 35 UG158 March 24, 2008 Synplicity Synplify R 10. Click Change Result File to display the EDIF Result File dialog box; then move the to following dir ectory: <Install Path>/verilog/example/synth esis 11 . N a m e t h e f i l e pcix_top_s.edf and click OK to set the name of the result file [...]

36 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 5: Synthesizing a Design R 15. On the Implementation Results tab, de select W rite V endor Constraint File. 16. Click OK to return to the main pr oject window . 17. From the main pr oject window , click Run. Synplify synthesizes the design and writes out an optimiz[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 37 UG158 March 24, 2008 Synplicity Synplify R 3. Click OK to exit the dialog and r e turn to the pr oject window ( Figur e 5-10 ). 4. T o add source f iles to the new project, clic k Add. The first file (u sed by any design that instanti ates Xilinx primitives) is located in: <Synplicity Inst[...]

38 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 5: Synthesizing a Design R The next files ar e located in: <Install Path>/vhdl/src/xpci 6. Navigate to the xpci directory ( Fi gure 5-12 ) , select the si mulation model and the wrapper files (pcix_cor e.vhd and pcix_lc.vhd), and click Add to move these files[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 39 UG158 March 24, 2008 Synplicity Synplify R 8. In the Sour ce Files list, view the list of newly added sour ce files by double-clicking the flowtest/vhdl folder (if it is not already open). Drag to reorder the sour ce files in the hierarchical or der shown in Figure 5-14 . 9. Click Change Resu[...]

40 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 5: Synthesizing a Design R 1 1. From the main project window , click Change T arget to display the Options for Implementation dialog box, as shown in Figure 5-15 . 12. On the Device tab, set th e T echnology , Part , Speed, and Package options to reflect the target[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 41 UG158 March 24, 2008 Xilinx XST R Note: if you run LeonardoSpectr um with the graphical us er interf ace, the quick setup f or m cannot be used to synthesize the design. Instead, c hoose File > Run Script from the menu. The end r esult of the synthesis step is an EDIF file that is fed into[...]

42 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 5: Synthesizing a Design R[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 43 UG158 March 24, 2008 R Chapter 6 Implementing a Design This chapter describes the use of support ed FPGA implementati on tools using the Userapp example design. If you are using a desi g n w it h ref ere nc e cl oc ks , su bs ti tut e pcix_top with pcix_top_r and test_tb with test_tb_r . Supp[...]

44 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 6: Implementing a Design R ♦ The trce command performs a static ti ming analysis based on the d esign constraints originally specified in the us er constraints file. ♦ The netgen command generates a simulation model of the placed and route d design. 3. Implemen[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 45 UG158 March 24, 2008 R Chapter 7 T iming Simulation This chapter describes the use of support ed timing simulation tools using the Userapp example design. If you are using a desi g n w it h ref ere nc e cl oc ks , su bs ti tut e pcix_top with pcix_top_r and test_tb with test_tb_r . Supported [...]

46 www .xilinx.com PCI-X v5.1 165 Getting Started Guide UG158 March 24, 2008 Chapter 7: Timing Simulation R The SimV ision browser may be used to view si mulation r esults. SimV ision is started with the following command: simvision Mentor Graphics ModelSim Before attempting functional simulation, ensur e that the ModelSim environment is properly c[...]

PCI-X v5.1 165 Getting Star ted Guide www .xilinx.com 47 UG158 March 24, 2008 Mentor Graphics ModelSim R 3. Invoke ModelSim, and ensur e that the current dir ectory is set to: <Install Path>/vhdl/example/post_sim 4. Create the Si mPrim and UniSim libraries . Th is step only needs to be done once, the first time you perform a simulation: vlib [...]