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-rw-r--r--ports/stm32/boards/stm32f411.ld31
1 files changed, 31 insertions, 0 deletions
diff --git a/ports/stm32/boards/stm32f411.ld b/ports/stm32/boards/stm32f411.ld
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+++ b/ports/stm32/boards/stm32f411.ld
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+/*
+ GNU linker script for STM32F411
+*/
+
+/* Specify the memory areas */
+MEMORY
+{
+ FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 0x080000 /* entire flash, 512 KiB */
+ FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 0x004000 /* sector 0, 16 KiB */
+ /* sectors 1,2,3 are 16K, 4 is 64K (for filesystem) */
+ FLASH_TEXT (rx) : ORIGIN = 0x08020000, LENGTH = 0x060000 /* sectors 5,6,7 3*128KiB = 384 KiB */
+ RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 0x020000 /* 128 KiB */
+}
+
+/* produce a link error if there is not this amount of RAM for these sections */
+_minimum_stack_size = 2K;
+_minimum_heap_size = 16K;
+
+/* Define tho top end of the stack. The stack is full descending so begins just
+ above last byte of RAM. Note that EABI requires the stack to be 8-byte
+ aligned for a call. */
+_estack = ORIGIN(RAM) + LENGTH(RAM);
+
+/* define common sections and symbols */
+INCLUDE common.ld
+
+/* RAM extents for the garbage collector */
+_ram_start = ORIGIN(RAM);
+_ram_end = ORIGIN(RAM) + LENGTH(RAM);
+_heap_start = _ebss; /* heap starts just after statically allocated memory */
+_heap_end = 0x2001c000; /* tunable */