circuitpython/ports/stm32/boards/stm32f413xg.ld
Chris Mason 1b956ec817 stm32: Add support for F413 MCUs.
Includes:
- Support for CAN3.
- Support for UART9 and UART10.
- stm32f413xg.ld and stm32f413xh.ld linker scripts.
- stm32f413_af.csv alternate function mapping.
- startup_stm32f413xx.s because F413 has different interrupt vector table.
- Memory configuration with: 240K filesystem, 240K heap, 16K stack.
2019-05-02 16:26:53 +10:00

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/*
GNU linker script for STM32F413xg (1MB flash, 320kB RAM)
*/
/* Specify the memory areas */
/* FLASH_FS2 is placed before FLASH_TEXT to support 1MB and 1.5MB FLASH with common code in flashbdev.c */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K /* entire flash */
FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 16K /* sector 0 */
FLASH_FS (rx) : ORIGIN = 0x08004000, LENGTH = 176K /* sectors 1,2,3 are 16K, 4 is 64K, 5 is 128K (64K used) for filesystem */
FLASH_FS2 (rx) : ORIGIN = 0x08040000, LENGTH = 128K /* sector 6 is 128K (64K used) for filesystem, Total filesystem 240K */
FLASH_TEXT (rx) : ORIGIN = 0x08060000, LENGTH = 640K /* sectors 7,8,9,10,11 are 128K*/
SRAM2 (xrw) : ORIGIN = 0x10000000, LENGTH = 64K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 256K
}
/* 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);
/* 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 = _ram_end - 16K; /* 240K, tunable */