diff options
Diffstat (limited to 'libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/TOOLCHAIN_GCC_ARM/STM32F429BI.ld')
| -rw-r--r-- | libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/TOOLCHAIN_GCC_ARM/STM32F429BI.ld | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/TOOLCHAIN_GCC_ARM/STM32F429BI.ld b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/TOOLCHAIN_GCC_ARM/STM32F429BI.ld index c3aa304..ad7ddaf 100644 --- a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/TOOLCHAIN_GCC_ARM/STM32F429BI.ld +++ b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/TOOLCHAIN_GCC_ARM/STM32F429BI.ld @@ -1,16 +1,24 @@ -/* Linker script to configure memory regions. */ +/* Linker script to configure memory regions. + * + * This is the script for the firmware (meaning any application except the bootloader). + * It should be placed 128 KB from the start of the STM32 internal flash. + * + */ MEMORY -{ - FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 2048k - CCM (rwx) : ORIGIN = 0x10000000, LENGTH = 64K - RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 192k +{ + /* FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 2048k */ + BOOTLOADER (rx) : ORIGIN = 0x08000000, LENGTH = 128K + FIRMWARE (rx) : ORIGIN = 0x08000000 + 128K, LENGTH = 2048K - 128K + FLASH (rx) : ORIGIN = 0x08000000 + 128K, LENGTH = 2048K - 128K + RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 192K - 4 } +/* original: FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 2048K */ /* Linker script to place sections and symbol values. Should be used together * with other linker script that defines memory regions FLASH and RAM. * It references following symbols, which must be defined in code: * Reset_Handler : Entry of reset handler - * + * * It defines following symbols, which code can use without definition: * __exidx_start * __exidx_end @@ -149,6 +157,17 @@ SECTIONS __StackLimit = __StackTop - SIZEOF(.stack_dummy); PROVIDE(__stack = __StackTop); + /* The DFU code needs to know where the firmware lives */ + CRYPTECH_BOOTLOADER_START = ORIGIN(BOOTLOADER); + CRYPTECH_BOOTLOADER_END = ORIGIN(BOOTLOADER) + LENGTH(BOOTLOADER) - 1; + CRYPTECH_FIRMWARE_START = ORIGIN(FIRMWARE); + CRYPTECH_FIRMWARE_END = ORIGIN(FIRMWARE) + LENGTH(FIRMWARE) - 1; + /* The last 4 bytes of RAM is used to control the DFU reset+jumping. + * Have to be reserved in here to not get overwritten by the Reset_Handler + * that zeros memory. Maybe there is a better way? + */ + CRYPTECH_DFU_CONTROL = ORIGIN(RAM) + LENGTH(RAM); + /* Check if data + heap + stack exceeds RAM limit */ ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack") } |