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micropython/ports/stm32/boards/stm32l476xe.ld

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stmhal: Add board files for LIMIFROG board.
2016-03-30 10:27:14 +01:00
/*
GNU linker script for STM32L476XE
*/
/* Specify the memory areas */
MEMORY
all: Remove trailing spaces, per coding conventions.
2017-07-19 04:12:10 +01:00
{
stmhal: Add board files for LIMIFROG board.
2016-03-30 10:27:14 +01:00
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K
stm32/boards: Change linker scripts to use "K" instead of hex byte size.
2017-09-06 06:24:08 +01:00
FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 16K /* sectors 0-7 */
FLASH_TEXT (rx) : ORIGIN = 0x08004000, LENGTH = 368K /* sectors 8-191 */
FLASH_FS (r) : ORIGIN = 0x08060000, LENGTH = 128K /* sectors 192-255 */
stmhal: Add board files for LIMIFROG board.
2016-03-30 10:27:14 +01:00
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 96K
SRAM2 (xrw) : ORIGIN = 0x10000000, LENGTH = 32K
stm32: Add support for STM32L496 MCU.
2018-05-18 08:03:53 +01:00
FS_CACHE(xrw) : ORIGIN = 0x10007800, LENGTH = 2K
stmhal: Add board files for LIMIFROG board.
2016-03-30 10:27:14 +01:00
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
all: Remove trailing spaces, per coding conventions.
2017-07-19 04:12:10 +01:00
stm32: In link script, define start of stack separately from heap end. Previously the end of the heap was the start (lowest address) of the stack. With the changes in this commit these addresses are now independent, allowing a board to place the heap and stack in separate locations.
2019-05-14 15:43:38 +01:00
/* Define 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. */
stm32: Enter bootloader via a system reset. Entering a bootloader (ST system bootloader, or custom mboot) from software by directly branching to it is not reliable, and the reliability of it working can depend on the peripherals that were enabled by the application code. It's also not possible to branch to a bootloader if the WDT is enabled (unless the bootloader has specific provisions to feed the WDT). This patch changes the way a bootloader is entered from software by first doing a complete system reset, then branching to the desired bootloader early on in the start-up process. The top two words of RAM (of the stack) are reserved to store flags indicating that the bootloader should be entered after a reset.
2019-06-22 12:26:03 +01:00
_estack = ORIGIN(RAM) + LENGTH(RAM) - _estack_reserve;
stm32: In link script, define start of stack separately from heap end. Previously the end of the heap was the start (lowest address) of the stack. With the changes in this commit these addresses are now independent, allowing a board to place the heap and stack in separate locations.
2019-05-14 15:43:38 +01:00
_sstack = _estack - 16K; /* tunable */
stmhal: Add board files for LIMIFROG board.
2016-03-30 10:27:14 +01:00
/* RAM extents for the garbage collector */
stm32: Add support for STM32L496 MCU.
2018-05-18 08:03:53 +01:00
_ram_fs_cache_start = ORIGIN(FS_CACHE);
stm32/flashbdev: Fix bug with L4 block cache, dereferencing block size. The code was dereferencing 0x800 and loading a value from there, trying to use a literal value (not address) defined in the linker script (_ram_fs_cache_block_size) which was 0x800.
2018-07-13 15:23:59 +01:00
_ram_fs_cache_end = ORIGIN(FS_CACHE) + LENGTH(FS_CACHE);
stmhal: Put common definitions from linker files to common.ld.
2016-09-21 10:49:45 +01:00
_ram_start = ORIGIN(RAM);
stmhal: Add board files for LIMIFROG board.
2016-03-30 10:27:14 +01:00
_ram_end = ORIGIN(RAM) + LENGTH(RAM);
stmhal: Put common definitions from linker files to common.ld.
2016-09-21 10:49:45 +01:00
_heap_start = _ebss; /* heap starts just after statically allocated memory */
stm32: In link script, define start of stack separately from heap end. Previously the end of the heap was the start (lowest address) of the stack. With the changes in this commit these addresses are now independent, allowing a board to place the heap and stack in separate locations.
2019-05-14 15:43:38 +01:00
_heap_end = _sstack;
stmhal: Fix linker map for STM32L476 chips. In particular, this makes the L4 .isr_vector section 16K in size so it's the same as the F4/F7 MCUs. The patch also moves the L4 filesystem to the end of flash, which allows for 512K filesystem on the 1Mb devices like the STM32L476DISC.
2016-09-28 07:11:36 +01:00
_flash_fs_start = ORIGIN(FLASH_FS);
_flash_fs_end = ORIGIN(FLASH_FS) + LENGTH(FLASH_FS);