Skip to content

STM32L432KC: increase RAM size from 48k to 64k #5171

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 27, 2017
Merged

STM32L432KC: increase RAM size from 48k to 64k #5171

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions ...ET_STM/TARGET_STM32L4/TARGET_STM32L432xC/device/TOOLCHAIN_ARM_MICRO/startup_stm32l432xx.S
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -42,13 +42,13 @@
AREA STACK, NOINIT, READWRITE, ALIGN=3
EXPORT __initial_sp

__initial_sp EQU 0x2000C000 ; Top of RAM, L4-ECC-SRAM2 retained in standby
__initial_sp EQU 0x20010000 ; Top of RAM

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

Heap_Size EQU 0x0BA00 ; 46KB (48KB, -2*1KB for main thread and scheduler)
Heap_Size EQU 0x0F800 ; 62KB (64KB, -2*1KB for main thread and scheduler)

AREA HEAP, NOINIT, READWRITE, ALIGN=3
EXPORT __heap_base
Expand Down
6 changes: 1 addition & 5 deletions ...s/TARGET_STM/TARGET_STM32L4/TARGET_STM32L432xC/device/TOOLCHAIN_ARM_MICRO/stm32l432xx.sct
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -36,12 +36,8 @@ LR_IROM1 0x08000000 0x40000 { ; load region size_region
.ANY (+RO)
}

RW_IRAM1 0x20000000 0x0000C000 { ; RW data 48k L4-SRAM1
.ANY (+RW +ZI)
}

; Total: 98 vectors = 392 bytes (0x188) to be reserved in RAM
RW_IRAM2 (0x10000000+0x188) (0x04000-0x188) { ; RW data 16k L4-ECC-SRAM2 retained in standby
RW_IRAM1 (0x20000000+0x188) (0x00010000-0x188) {
.ANY (+RW +ZI)
}

Expand Down
2 changes: 1 addition & 1 deletion ...RGET_STM/TARGET_STM32L4/TARGET_STM32L432xC/device/TOOLCHAIN_ARM_STD/startup_stm32l432xx.S
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@
;*
;*******************************************************************************

__initial_sp EQU 0x2000C000 ; Top of RAM, L4-ECC-SRAM2 retained in standby
__initial_sp EQU 0x20010000 ; Top of RAM

PRESERVE8
THUMB
Expand Down
8 changes: 2 additions & 6 deletions ...ets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L432xC/device/TOOLCHAIN_ARM_STD/stm32l432xx.sct
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -36,13 +36,9 @@ LR_IROM1 0x08000000 0x40000 { ; load region size_region
.ANY (+RO)
}

RW_IRAM1 0x20000000 0x0000C000 { ; RW data 48k L4-SRAM1
.ANY (+RW +ZI)
}

; Total: 98 vectors = 392 bytes (0x188) to be reserved in RAM
RW_IRAM2 (0x10000000+0x188) (0x04000-0x188) { ; RW data 16k L4-ECC-SRAM2 retained in standby
.ANY (+RW +ZI)
RW_IRAM1 (0x20000000+0x188) (0x00010000-0x188) {
.ANY (+RW +ZI)
}

}
3 changes: 1 addition & 2 deletions targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L432xC/device/TOOLCHAIN_GCC_ARM/STM32L432XX.ld
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,7 @@
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 256K
SRAM2 (rwx) : ORIGIN = 0x10000188, LENGTH = 16k - 0x188
SRAM1 (rwx) : ORIGIN = 0x20000000, LENGTH = 48k
SRAM1 (rwx) : ORIGIN = 0x20000188, LENGTH = 64k - 0x188
}

/* Linker script to place sections and symbol values. Should be used together
Expand Down
13 changes: 4 additions & 9 deletions targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L432xC/device/TOOLCHAIN_IAR/stm32l432xx.icf
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5,20 +5,16 @@ define symbol __region_ROM_end__ = 0x0803FFFF;

/* [RAM = 48kb + 16kb = 0xC000] */
/* Vector table dynamic copy: Total: 98 vectors = 392 bytes (0x188) to be reserved in RAM */
define symbol __NVIC_start__ = 0x10000000;
define symbol __NVIC_end__ = 0x10000187; /* Aligned on 8 bytes (392 = 49 x 8) */
define symbol __region_SRAM2_start__ = 0x10000188;
define symbol __region_SRAM2_end__ = 0x10003FFF;
define symbol __region_SRAM1_start__ = 0x20000000;
define symbol __region_SRAM1_end__ = 0x2000BFFF;
define symbol __NVIC_start__ = 0x20000000;
define symbol __NVIC_end__ = 0x20000187; /* Aligned on 8 bytes (392 = 49 x 8) */
define symbol __region_SRAM1_start__ = 0x20000188;
define symbol __region_SRAM1_end__ = 0x2000FFFF;

/* Memory regions */
define memory mem with size = 4G;
define region ROM_region = mem:[from __region_ROM_start__ to __region_ROM_end__];
define region SRAM2_region = mem:[from __region_SRAM2_start__ to __region_SRAM2_end__];
define region SRAM1_region = mem:[from __region_SRAM1_start__ to __region_SRAM1_end__];

/* Stack 1/8 and Heap 1/4 of RAM */
define symbol __size_cstack__ = 0x2000;
define symbol __size_heap__ = 0x4000;
define block CSTACK with alignment = 8, size = __size_cstack__ { };
Expand All @@ -32,4 +28,3 @@ place at address mem:__intvec_start__ { readonly section .intvec };

place in ROM_region { readonly };
place in SRAM1_region { readwrite, block STACKHEAP };
place in SRAM2_region { };
2 changes: 1 addition & 1 deletion targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L432xC/device/cmsis_nvic.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,6 @@
// MCU Peripherals: 82 vectors = 328 bytes from 0x40 to 0x187
// Total: 98 vectors = 392 bytes (0x188) to be reserved in RAM
#define NVIC_NUM_VECTORS 98
#define NVIC_RAM_VECTOR_ADDRESS 0x10000000 // Vectors positioned at start of SRAM2
#define NVIC_RAM_VECTOR_ADDRESS SRAM1_BASE // Vectors positioned at start of SRAM1

#endif
2 changes: 1 addition & 1 deletion targets/TARGET_STM/mbed_rtx.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -53,7 +53,7 @@
#define INITIAL_SP (0x2000A000UL)

#elif defined(TARGET_STM32L432KC)
#define INITIAL_SP (0x2000C000UL)
#define INITIAL_SP (0x20010000UL)

#elif (defined(TARGET_STM32F303RE) ||\
defined(TARGET_STM32F303ZE) ||\
Expand Down