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[STM32L4] Update ARM_MICRO startup files #1554

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Merged
merged 2 commits into from
Mar 24, 2016
Merged

[STM32L4] Update ARM_MICRO startup files #1554

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a4cf478
Set NVIC_RAM_VECTOR_ADDRESS to 0x10000000
bcostm Feb 19, 2016
c30cb01
Update ARM_MICRO startup files
bcostm Feb 19, 2016
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16 changes: 3 additions & 13 deletions ...s/TARGET_STM/TARGET_STM32L4/TARGET_DISCO_L476VG/TOOLCHAIN_ARM_MICRO/startup_stm32l476xx.s
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Original file line number Diff line number Diff line change
Expand Up @@ -39,39 +39,28 @@
;
;*******************************************************************************

; Amount of memory (in bytes) allocated for Stack
; Tailor this value to your application needs
; <h> Stack Configuration
; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>

Stack_Size EQU 0x00000400

AREA STACK, NOINIT, READWRITE, ALIGN=3
EXPORT __initial_sp

Stack_Mem SPACE Stack_Size

__initial_sp EQU 0x10008000 ; Top of RAM, L4-ECC-SRAM2 retained in standby

; <h> Heap Configuration
; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
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Why this removal for uLib STD?

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MY question could be answered by describing the change in the commit. I can see here removal of Stack_size, Stack_mem, adjusting heap size and changing heap_limit calculation. PLease add more details for this changeset - why, how..

; </h>

Heap_Size EQU 0x00000400
Heap_Size EQU 0x8000 ; 32KB

AREA HEAP, NOINIT, READWRITE, ALIGN=3
EXPORT __heap_base
EXPORT __heap_limit

__heap_base
Heap_Mem SPACE Heap_Size
__heap_limit EQU (__initial_sp - Stack_Size)
__heap_limit

PRESERVE8
THUMB


; Vector Table Mapped to Address 0 at Reset
AREA RESET, DATA, READONLY
EXPORT __Vectors
Expand Down Expand Up @@ -415,3 +404,4 @@ FPU_IRQHandler
END

;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE*****

2 changes: 1 addition & 1 deletion libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L4/TARGET_DISCO_L476VG/cmsis_nvic.c
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Expand Up @@ -30,7 +30,7 @@
*/
#include "cmsis_nvic.h"

#define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Vectors positioned at start of RAM
#define NVIC_RAM_VECTOR_ADDRESS (0x10000000) // Vectors positioned at start of SRAM2
#define NVIC_FLASH_VECTOR_ADDRESS (0x08000000) // Initial vector position in flash

void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
Expand Down
16 changes: 3 additions & 13 deletions .../TARGET_STM/TARGET_STM32L4/TARGET_NUCLEO_L476RG/TOOLCHAIN_ARM_MICRO/startup_stm32l476xx.s
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Original file line number Diff line number Diff line change
Expand Up @@ -39,39 +39,28 @@
;
;*******************************************************************************

; Amount of memory (in bytes) allocated for Stack
; Tailor this value to your application needs
; <h> Stack Configuration
; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>

Stack_Size EQU 0x00000400

AREA STACK, NOINIT, READWRITE, ALIGN=3
EXPORT __initial_sp

Stack_Mem SPACE Stack_Size

__initial_sp EQU 0x10008000 ; Top of RAM, L4-ECC-SRAM2 retained in standby

; <h> Heap Configuration
; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>

Heap_Size EQU 0x00000400
Heap_Size EQU 0x8000 ; 32KB

AREA HEAP, NOINIT, READWRITE, ALIGN=3
EXPORT __heap_base
EXPORT __heap_limit

__heap_base
Heap_Mem SPACE Heap_Size
__heap_limit EQU (__initial_sp - Stack_Size)
__heap_limit

PRESERVE8
THUMB


; Vector Table Mapped to Address 0 at Reset
AREA RESET, DATA, READONLY
EXPORT __Vectors
Expand Down Expand Up @@ -415,3 +404,4 @@ FPU_IRQHandler
END

;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE*****

2 changes: 1 addition & 1 deletion libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L4/TARGET_NUCLEO_L476RG/cmsis_nvic.c
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Expand Up @@ -30,7 +30,7 @@
*/
#include "cmsis_nvic.h"

#define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Vectors positioned at start of RAM
#define NVIC_RAM_VECTOR_ADDRESS (0x10000000) // Vectors positioned at start of SRAM2
#define NVIC_FLASH_VECTOR_ADDRESS (0x08000000) // Initial vector position in flash

void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
Expand Down