1 | /* Entry Point */
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2 | ENTRY(Reset_Handler)
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3 |
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4 | /* Highest address of the user mode stack */
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5 | _estack = 0x20080000; /* end of RAM */
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6 | /* Generate a link error if heap and stack don't fit into RAM */
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7 | _Min_Heap_Size = 0x400; /* required amount of heap */
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8 | _Min_Stack_Size = 0x800; /* required amount of stack */
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9 |
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10 | /* Specify the memory areas */
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11 | MEMORY
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12 | {
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13 | FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 2048K
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14 | RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 512K
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15 | Memory_B1(xrw) : ORIGIN = 0x2007C000, LENGTH = 0x80
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16 | Memory_B2(xrw) : ORIGIN = 0x2007C080, LENGTH = 0x80
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17 | Memory_B3(xrw) : ORIGIN = 0x2007C100, LENGTH = 0x17d0
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18 | Memory_B4(xrw) : ORIGIN = 0x2007D8D0, LENGTH = 0x17d0
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19 | ITCMRAM (xrw) : ORIGIN = 0x00000000, LENGTH = 16K
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20 | }
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21 |
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22 | /* Define output sections */
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23 | SECTIONS
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24 | {
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25 | /* The startup code goes first into FLASH */
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26 | .isr_vector :
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27 | {
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28 | . = ALIGN(4);
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29 | KEEP(*(.isr_vector)) /* Startup code */
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30 | . = ALIGN(4);
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31 | } >FLASH
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32 |
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33 | /* The program code and other data goes into FLASH */
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34 | .text :
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35 | {
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36 | . = ALIGN(4);
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37 | *(.text) /* .text sections (code) */
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38 | *(.text*) /* .text* sections (code) */
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39 | *(.glue_7) /* glue arm to thumb code */
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40 | *(.glue_7t) /* glue thumb to arm code */
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41 | *(.eh_frame)
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42 |
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43 | KEEP (*(.init))
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44 | KEEP (*(.fini))
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45 |
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46 | . = ALIGN(4);
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47 | _etext = .; /* define a global symbols at end of code */
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48 | } >FLASH
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49 |
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50 | /* Constant data goes into FLASH */
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51 | .rodata :
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52 | {
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53 | . = ALIGN(4);
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54 | *(.rodata) /* .rodata sections (constants, strings, etc.) */
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55 | *(.rodata*) /* .rodata* sections (constants, strings, etc.) */
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56 | . = ALIGN(4);
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57 | } >FLASH
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58 |
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59 | .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
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60 | .ARM : {
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61 | __exidx_start = .;
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62 | *(.ARM.exidx*)
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63 | __exidx_end = .;
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64 | } >FLASH
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65 |
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66 | .preinit_array :
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67 | {
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68 | PROVIDE_HIDDEN (__preinit_array_start = .);
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69 | KEEP (*(.preinit_array*))
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70 | PROVIDE_HIDDEN (__preinit_array_end = .);
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71 | } >FLASH
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72 | .init_array :
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73 | {
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74 | PROVIDE_HIDDEN (__init_array_start = .);
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75 | KEEP (*(SORT(.init_array.*)))
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76 | KEEP (*(.init_array*))
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77 | PROVIDE_HIDDEN (__init_array_end = .);
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78 | } >FLASH
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79 | .fini_array :
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80 | {
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81 | PROVIDE_HIDDEN (__fini_array_start = .);
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82 | KEEP (*(SORT(.fini_array.*)))
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83 | KEEP (*(.fini_array*))
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84 | PROVIDE_HIDDEN (__fini_array_end = .);
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85 | } >FLASH
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86 |
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87 | /* used by the startup to initialize data */
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88 | _sidata = LOADADDR(.data);
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89 |
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90 | /* Initialized data sections goes into RAM, load LMA copy after code */
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91 | .data :
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92 | {
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93 | . = ALIGN(4);
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94 | _sdata = .; /* create a global symbol at data start */
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95 | *(.data) /* .data sections */
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96 | *(.data*) /* .data* sections */
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97 |
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98 | . = ALIGN(4);
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99 | _edata = .; /* define a global symbol at data end */
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100 | } >RAM AT> FLASH
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101 |
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102 |
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103 | /* Uninitialized data section */
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104 | . = ALIGN(4);
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105 | .bss :
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106 | {
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107 | /* This is used by the startup in order to initialize the .bss secion */
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108 | _sbss = .; /* define a global symbol at bss start */
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109 | __bss_start__ = _sbss;
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110 | *(.bss)
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111 | *(.bss*)
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112 | *(COMMON)
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113 |
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114 | . = ALIGN(4);
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115 | _ebss = .; /* define a global symbol at bss end */
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116 | __bss_end__ = _ebss;
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117 | } >RAM
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118 |
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119 | /* User_heap_stack section, used to check that there is enough RAM left */
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120 | ._user_heap_stack :
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121 | {
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122 | . = ALIGN(8);
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123 | PROVIDE ( end = . );
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124 | PROVIDE ( _end = . );
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125 | . = . + _Min_Heap_Size;
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126 | . = . + _Min_Stack_Size;
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127 | . = ALIGN(8);
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128 | } >RAM
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129 |
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130 |
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131 |
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132 | /* Remove information from the standard libraries */
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133 | /DISCARD/ :
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134 | {
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135 | libc.a ( * )
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136 | libm.a ( * )
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137 | libgcc.a ( * )
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138 | }
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139 |
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140 | .ARM.attributes 0 : { *(.ARM.attributes) }
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141 | .RxDescripSection : { *(.RxDescripSection) } >Memory_B1
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142 | .TxDescripSection : { *(.TxDescripSection) } >Memory_B2
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143 | .RxBUF : { *(.RxBUF) } >Memory_B3
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144 | .TxBUF : { *(.TxBUF) } >Memory_B4
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145 | }
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