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1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> |
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2 <html> |
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3 <head> |
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4 <title>README - eCos OpenRISC Port</title> |
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5 |
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6 </head> |
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7 <body> |
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8 For those unfamiliar with OpenRISC, it is an open-source RISC/DSP processor |
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9 architecture. OpenCores.org makes available an <a |
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10 href="http://www.opencores.org/projects/or1k">implementation</a> of this |
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11 architecture that can be synthesized, for example, as part of an FPGA or ASIC. |
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12 The port of eCos to OpenRISC was sponsored by the <a |
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13 href="http://www.rosum.com">Rosum Corporation</a>.<br> |
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14 <br> |
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15 A few notes and caveats about the eCos OpenRISC port: |
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16 <ul> |
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17 <li>The only platform supported at this time is ORP (OpenRISC Reference |
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18 Platform).</li> |
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19 <li>The only ORP devices supported so far are serial ports used for |
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20 diagnostic and debugging purposes and AM29LVxxxx Flash ROM.</li> |
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21 <li>To build and debug, you must build the GNU development tools from |
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22 <a |
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23 href="#%20http://www.opencores.org/projects/or1k/GNU%20Toolchain%20Port">source |
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24 available at the OpenCores web site</a> -- not the versions available |
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25 from the GNU web site or elsewhere. There is a <a |
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26 href="./build_or32_elf_tools.sh">shell script</a> in this directory that |
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27 will assist in downloading and building the GNU toolchain.</li> |
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28 <li>For debugging, you can use either gdb's JTAG target or the serial |
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29 target. The latter has some advantages, e.g. the gdb serial target is |
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30 thread-aware, but it is much slower, especially while simulating.<br> |
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31 </li> |
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32 |
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33 </ul> |
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34 Scott Furman<br> |
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35 <i>sfurman at rosum dot com</i><br> |
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36 <br> |
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37 |
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38 </body> |
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39 </html> |
