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| <h4 class="subsection">21.3.4 MicroBlaze</h4> |
| |
| <p><a name="index-Xilinx-MicroBlaze-1320"></a><a name="index-XMD_002c-Xilinx-Microprocessor-Debugger-1321"></a> |
| The MicroBlaze is a soft-core processor supported on various Xilinx |
| FPGAs, such as Spartan or Virtex series. Boards with these processors |
| usually have JTAG ports which connect to a host system running the Xilinx |
| Embedded Development Kit (EDK) or Software Development Kit (SDK). |
| This host system is used to download the configuration bitstream to |
| the target FPGA. The Xilinx Microprocessor Debugger (XMD) program |
| communicates with the target board using the JTAG interface and |
| presents a <code>gdbserver</code> interface to the board. By default |
| <code>xmd</code> uses port <code>1234</code>. (While it is possible to change |
| this default port, it requires the use of undocumented <code>xmd</code> |
| commands. Contact Xilinx support if you need to do this.) |
| |
| <p>Use these GDB commands to connect to the MicroBlaze target processor. |
| |
| <dl> |
| <dt><code>target remote :1234</code><dd>Use this command to connect to the target if you are running <span class="sc">gdb</span> |
| on the same system as <code>xmd</code>. |
| |
| <br><dt><code>target remote </code><var>xmd-host</var><code>:1234</code><dd>Use this command to connect to the target if it is connected to <code>xmd</code> |
| running on a different system named <var>xmd-host</var>. |
| |
| <br><dt><code>load</code><dd>Use this command to download a program to the MicroBlaze target. |
| |
| <br><dt><code>set debug microblaze </code><var>n</var><dd>Enable MicroBlaze-specific debugging messages if non-zero. |
| |
| <br><dt><code>show debug microblaze </code><var>n</var><dd>Show MicroBlaze-specific debugging level. |
| </dl> |
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