2 *****************************************************************************
4 ** File : stm32_flash_h7x3_2m.ld
6 ** Abstract : Linker script for STM32H743xI Device with
7 ** 512K AXI-RAM mapped onto AXI bus on D1 domain
8 ** 128K SRAM1 mapped on D2 domain
9 ** 128K SRAM2 mapped on D2 domain
10 ** 32K SRAM3 mapped on D2 domain
11 ** 64K SRAM4 mapped on D3 domain
15 *****************************************************************************
22 0x00000000 to 0x0000FFFF 64K ITCM
23 0x20000000 to 0x2001FFFF 128K DTCM
24 0x24000000 to 0x2407FFFF 512K AXI SRAM, D1 domain, main RAM
25 0x30000000 to 0x3001FFFF 128K SRAM1, D2 domain
26 0x30020000 to 0x3003FFFF 128K SRAM2, D2 domain
27 0x30040000 to 0x30047FFF 32K SRAM3, D2 domain, unused
28 0x38000000 to 0x3800FFFF 64K SRAM4, D3 domain, unused
29 0x38800000 to 0x38800FFF 4K BACKUP SRAM, Backup domain, unused
31 0x08000000 to 0x081FFFFF 2048K full flash,
32 0x08000000 to 0x0801FFFF 128K isr vector, startup code,
33 0x08020000 to 0x0803FFFF 128K config, // FLASH_Sector_1
34 0x08040000 to 0x081FFFFF 1792K firmware,
37 /* Specify the memory areas */
40 FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 10K
41 FLASH_CUSTOM_DEFAULTS (r) : ORIGIN = 0x08002800, LENGTH = 10K
42 FLASH_UNUSED (r) : ORIGIN = 0x08005000, LENGTH = 108K
44 FLASH_CONFIG (r) : ORIGIN = 0x08020000, LENGTH = 128K
45 FLASH1 (rx) : ORIGIN = 0x08040000, LENGTH = DEFINED(USE_CUSTOM_DEFAULTS_EXTENDED) ? 1664K : 1792K
46 FLASH_CUSTOM_DEFAULTS_EXTENDED (r): ORIGIN = DEFINED(USE_CUSTOM_DEFAULTS_EXTENDED) ? 0x081E0000 : 0x08200000, LENGTH = DEFINED(USE_CUSTOM_DEFAULTS_EXTENDED) ? 128K : 0K
48 ITCM_RAM (rwx) : ORIGIN = 0x00000000, LENGTH = 64K
49 DTCM_RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 128K
50 RAM (rwx) : ORIGIN = 0x24000000, LENGTH = 512K
52 D2_RAM (rwx) : ORIGIN = 0x30000000, LENGTH = 256K /* SRAM1 + SRAM2 */
54 MEMORY_B1 (rx) : ORIGIN = 0x60000000, LENGTH = 0K
57 REGION_ALIAS("STACKRAM", DTCM_RAM)
58 REGION_ALIAS("FASTRAM", DTCM_RAM)
63 /* Highest address of the user mode stack */
64 _estack = ORIGIN(STACKRAM) + LENGTH(STACKRAM) - 8; /* Reserve 2 x 4bytes for info across reset */
66 /* Base address where the config is stored. */
67 __config_start = ORIGIN(FLASH_CONFIG);
68 __config_end = ORIGIN(FLASH_CONFIG) + LENGTH(FLASH_CONFIG);
70 /* Generate a link error if heap and stack don't fit into RAM */
71 _Min_Heap_Size = 0; /* required amount of heap */
72 _Min_Stack_Size = 0x800; /* required amount of stack */
74 /* Define output sections */
77 /* The startup code goes first into FLASH */
81 PROVIDE (isr_vector_table_base = .);
82 KEEP(*(.isr_vector)) /* Startup code */
86 /* The program code and other data goes into FLASH */
90 *(.text) /* .text sections (code) */
91 *(.text*) /* .text* sections (code) */
92 *(.rodata) /* .rodata sections (constants, strings, etc.) */
93 *(.rodata*) /* .rodata* sections (constants, strings, etc.) */
94 *(.glue_7) /* glue arm to thumb code */
95 *(.glue_7t) /* glue thumb to arm code */
102 _etext = .; /* define a global symbols at end of code */
105 /* Critical program code goes into ITCM RAM */
106 /* Copy specific fast-executing code to ITCM RAM */
107 tcm_code = LOADADDR(.tcm_code);
116 } >ITCM_RAM AT >FLASH1
120 *(.ARM.extab* .gnu.linkonce.armextab.*)
126 *(.ARM.exidx*) __exidx_end = .;
131 PROVIDE_HIDDEN (__pg_registry_start = .);
132 KEEP (*(.pg_registry))
133 KEEP (*(SORT(.pg_registry.*)))
134 PROVIDE_HIDDEN (__pg_registry_end = .);
139 PROVIDE_HIDDEN (__pg_resetdata_start = .);
140 KEEP (*(.pg_resetdata))
141 PROVIDE_HIDDEN (__pg_resetdata_end = .);
144 /* Storage for the address for the configuration section so we can grab it out of the hex file */
148 KEEP (*(.custom_defaults_start_address))
150 KEEP (*(.custom_defaults_end_address))
152 __custom_defaults_internal_start = .;
154 } >FLASH_CUSTOM_DEFAULTS
156 PROVIDE_HIDDEN (__custom_defaults_start = DEFINED(USE_CUSTOM_DEFAULTS_EXTENDED) ? ORIGIN(FLASH_CUSTOM_DEFAULTS_EXTENDED) : __custom_defaults_internal_start);
157 PROVIDE_HIDDEN (__custom_defaults_end = DEFINED(USE_CUSTOM_DEFAULTS_EXTENDED) ? ORIGIN(FLASH_CUSTOM_DEFAULTS_EXTENDED) + LENGTH(FLASH_CUSTOM_DEFAULTS_EXTENDED) : ORIGIN(FLASH_CUSTOM_DEFAULTS) + LENGTH(FLASH_CUSTOM_DEFAULTS));
159 /* used by the startup to initialize data */
160 _sidata = LOADADDR(.data);
162 /* Initialized data sections goes into RAM, load LMA copy after code */
166 _sdata = .; /* create a global symbol at data start */
167 *(.data) /* .data sections */
168 *(.data*) /* .data* sections */
171 _edata = .; /* define a global symbol at data end */
174 /* Uninitialized data section */
178 /* This is used by the startup in order to initialize the .bss secion */
179 _sbss = .; /* define a global symbol at bss start */
180 __bss_start__ = _sbss;
182 *(SORT_BY_ALIGNMENT(.bss*))
186 _ebss = .; /* define a global symbol at bss end */
190 /* Uninitialized data section */
194 /* This is used by the startup in order to initialize the .sram2 secion */
195 _ssram2 = .; /* define a global symbol at sram2 start */
196 __sram2_start__ = _ssram2;
198 *(SORT_BY_ALIGNMENT(.sram2*))
201 _esram2 = .; /* define a global symbol at sram2 end */
202 __sram2_end__ = _esram2;
205 /* used during startup to initialized fastram_data */
206 _sfastram_idata = LOADADDR(.fastram_data);
208 /* Initialized FAST_DATA section for unsuspecting developers */
212 _sfastram_data = .; /* create a global symbol at data start */
213 *(.fastram_data) /* .data sections */
214 *(.fastram_data*) /* .data* sections */
217 _efastram_data = .; /* define a global symbol at data end */
218 } >FASTRAM AT >FLASH1
221 .fastram_bss (NOLOAD) :
224 __fastram_bss_start__ = _sfastram_bss;
226 *(SORT_BY_ALIGNMENT(.fastram_bss*))
230 __fastram_bss_end__ = _efastram_bss;
233 /* used during startup to initialized dmaram_data */
234 _sdmaram_idata = LOADADDR(.dmaram_data);
239 PROVIDE(dmaram_start = .);
241 _dmaram_start__ = _sdmaram;
242 _sdmaram_data = .; /* create a global symbol at data start */
243 *(.dmaram_data) /* .data sections */
244 *(.dmaram_data*) /* .data* sections */
246 _edmaram_data = .; /* define a global symbol at data end */
250 .dmaram_bss (NOLOAD) :
253 __dmaram_bss_start__ = _sdmaram_bss;
255 *(SORT_BY_ALIGNMENT(.dmaram_bss*))
258 __dmaram_bss_end__ = _edmaram_bss;
265 PROVIDE(dmaram_end = .);
267 _dmaram_end__ = _edmaram;
270 .DMA_RW_D2 (NOLOAD) :
273 PROVIDE(dmarw_start = .);
275 _dmarw_start__ = _sdmarw;
277 PROVIDE(dmarw_end = .);
279 _dmarw_end__ = _edmarw;
282 .DMA_RW_AXI (NOLOAD) :
285 PROVIDE(dmarwaxi_start = .);
287 _dmarwaxi_start__ = _sdmarwaxi;
289 PROVIDE(dmarwaxi_end = .);
291 _dmarwaxi_end__ = _edmarwaxi;
294 .persistent_data (NOLOAD) :
296 __persistent_data_start__ = .;
299 __persistent_data_end__ = .;
303 /* User_heap_stack section, used to check that there is enough RAM left */
304 _heap_stack_end = ORIGIN(STACKRAM)+LENGTH(STACKRAM) - 8; /* 8 bytes to allow for alignment */
305 _heap_stack_begin = _heap_stack_end - _Min_Stack_Size - _Min_Heap_Size;
306 . = _heap_stack_begin;
311 PROVIDE ( _end = . );
312 . = . + _Min_Heap_Size;
313 . = . + _Min_Stack_Size;
317 /* MEMORY_bank1 section, code must be located here explicitly */
318 /* Example: extern int foo(void) __attribute__ ((section (".mb1text"))); */
321 *(.mb1text) /* .mb1text sections (code) */
322 *(.mb1text*) /* .mb1text* sections (code) */
323 *(.mb1rodata) /* read-only data (constants) */
327 /* Remove information from the standard libraries */
335 .ARM.attributes 0 : { *(.ARM.attributes) }