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| 6 | <title>w3_userio driver: Reading FPGA DNA</title> |
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| 26 | <td style="padding-left: 0.5em;"> |
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| 27 | <div id="projectname">w3_userio driver |
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| 28 | </div> |
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| 29 | <div id="projectbrief">Driver for WARP v3 user IO control core (w3_userio_axi_v1_02_a)</div> |
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| 59 | <div class="summary"> |
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| 60 | <a href="#define-members">Macros</a> </div> |
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| 61 | <div class="headertitle"> |
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| 62 | <div class="title">Reading FPGA DNA</div> </div> |
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| 63 | </div><!--header--> |
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| 64 | <div class="contents"> |
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| 65 | <table class="memberdecls"> |
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| 66 | <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a> |
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| 67 | Macros</h2></td></tr> |
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| 68 | <tr class="memitem:ga7ff5a375c154bd1a5b89cb2322060f5c"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__dna__read.html#ga7ff5a375c154bd1a5b89cb2322060f5c">userio_read_fpga_dna_lsb</a>(baseaddr)   Xil_In32(baseaddr+W3_USERIO_SLV_REG12_OFFSET)</td></tr> |
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| 69 | <tr class="separator:ga7ff5a375c154bd1a5b89cb2322060f5c"><td class="memSeparator" colspan="2"> </td></tr> |
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| 70 | <tr class="memitem:ga4f964b56e8daa6afb8a4d26e42237b59"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__dna__read.html#ga4f964b56e8daa6afb8a4d26e42237b59">userio_read_fpga_dna_msb</a>(baseaddr)   Xil_In32(baseaddr+W3_USERIO_SLV_REG12_OFFSET)</td></tr> |
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| 72 | </table> |
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| 73 | <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> |
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| 74 | <p>Every Virtex-6 FPGA has a unique "DNA" value embedded in the device. The w3_userio core implements logic to read this value into software-accessible registers. The DNA value is 56 bits, so two 32-bit registers are used to store the full value.</p> |
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| 75 | <p><b>Hardware requirements:</b> </p><ul> |
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| 76 | <li> |
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| 77 | A clock signal slower than 100MHz must be connected to the w3_userio core DNA_Port_Clk port </li> |
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| 78 | <li> |
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| 79 | The w3_userio core parameter INCLUDE_DNA_READ_LOGIC must be enabled </li> |
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| 80 | </ul> |
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| 81 | <p>If both requirements aren't met the DNA register values are undefined.</p> |
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| 82 | <p>The FPGA DNA value is also stored in the WARP v3 board EEPROM. Refer to the user guide EEPROM page for details. </p> |
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| 83 | <h2 class="groupheader">Macro Definition Documentation</h2> |
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| 84 | <a class="anchor" id="ga7ff5a375c154bd1a5b89cb2322060f5c"></a> |
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| 85 | <div class="memitem"> |
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| 86 | <div class="memproto"> |
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| 87 | <table class="memname"> |
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| 88 | <tr> |
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| 89 | <td class="memname">#define userio_read_fpga_dna_lsb</td> |
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| 90 | <td>(</td> |
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| 91 | <td class="paramtype"> </td> |
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| 92 | <td class="paramname">baseaddr</td><td>)</td> |
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| 93 | <td>   Xil_In32(baseaddr+W3_USERIO_SLV_REG12_OFFSET)</td> |
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| 94 | </tr> |
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| 95 | </table> |
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| 96 | </div><div class="memdoc"> |
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| 97 | |
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| 98 | <p>Returns the 32 LSB of the FPGA DNA. </p> |
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| 99 | |
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| 100 | </div> |
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| 101 | </div> |
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| 102 | <a class="anchor" id="ga4f964b56e8daa6afb8a4d26e42237b59"></a> |
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| 103 | <div class="memitem"> |
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| 104 | <div class="memproto"> |
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| 105 | <table class="memname"> |
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| 106 | <tr> |
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| 107 | <td class="memname">#define userio_read_fpga_dna_msb</td> |
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| 108 | <td>(</td> |
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| 109 | <td class="paramtype"> </td> |
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| 110 | <td class="paramname">baseaddr</td><td>)</td> |
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| 111 | <td>   Xil_In32(baseaddr+W3_USERIO_SLV_REG12_OFFSET)</td> |
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| 112 | </tr> |
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| 113 | </table> |
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| 114 | </div><div class="memdoc"> |
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| 115 | |
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| 116 | <p>Returns the 24 MSB of the FPGA DNA. </p> |
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| 117 | |
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| 125 | <li class="footer">Generated on Wed Jun 29 2016 15:00:03 for w3_userio driver by doxygen v1.8.11</li> |
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