MSP430.html 4.4 KB

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  4. (GNU Binutils)
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  58. <a name="MSP430"></a>
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  60. <p>
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  64. <a name="ld-and-MSP430"></a>
  65. <h3 class="section">4.9 <code>ld</code> and MSP430</h3>
  66. <p>For the MSP430 it is possible to select the MPU architecture. The flag &lsquo;<samp>-m [mpu type]</samp>&rsquo;
  67. will select an appropriate linker script for selected MPU type. (To get a list of known MPUs
  68. just pass &lsquo;<samp>-m help</samp>&rsquo; option to the linker).
  69. </p>
  70. <a name="index-MSP430-extra-sections"></a>
  71. <p>The linker will recognize some extra sections which are MSP430 specific:
  72. </p>
  73. <dl compact="compact">
  74. <dt><code>&lsquo;<samp>.vectors</samp>&rsquo;</code></dt>
  75. <dd><p>Defines a portion of ROM where interrupt vectors located.
  76. </p>
  77. </dd>
  78. <dt><code>&lsquo;<samp>.bootloader</samp>&rsquo;</code></dt>
  79. <dd><p>Defines the bootloader portion of the ROM (if applicable). Any code
  80. in this section will be uploaded to the MPU.
  81. </p>
  82. </dd>
  83. <dt><code>&lsquo;<samp>.infomem</samp>&rsquo;</code></dt>
  84. <dd><p>Defines an information memory section (if applicable). Any code in
  85. this section will be uploaded to the MPU.
  86. </p>
  87. </dd>
  88. <dt><code>&lsquo;<samp>.infomemnobits</samp>&rsquo;</code></dt>
  89. <dd><p>This is the same as the &lsquo;<samp>.infomem</samp>&rsquo; section except that any code
  90. in this section will not be uploaded to the MPU.
  91. </p>
  92. </dd>
  93. <dt><code>&lsquo;<samp>.noinit</samp>&rsquo;</code></dt>
  94. <dd><p>Denotes a portion of RAM located above &lsquo;<samp>.bss</samp>&rsquo; section.
  95. </p>
  96. <p>The last two sections are used by gcc.
  97. </p></dd>
  98. </dl>
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