mirror of https://github.com/ARMmbed/mbed-os.git
STM32F2 baremetal support
jeromecoutant
parent
a28e809122
commit
adbd936cbc
|
|
@ -1,74 +1,53 @@
|
|||
#! armcc -E
|
||||
; Scatter-Loading Description File
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
; Copyright (c) 2016, STMicroelectronics
|
||||
; All rights reserved.
|
||||
;
|
||||
; Redistribution and use in source and binary forms, with or without
|
||||
; modification, are permitted provided that the following conditions are met:
|
||||
;
|
||||
; 1. Redistributions of source code must retain the above copyright notice,
|
||||
; this list of conditions and the following disclaimer.
|
||||
; 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
; this list of conditions and the following disclaimer in the documentation
|
||||
; and/or other materials provided with the distribution.
|
||||
; 3. Neither the name of STMicroelectronics nor the names of its contributors
|
||||
; may be used to endorse or promote products derived from this software
|
||||
; without specific prior written permission.
|
||||
;
|
||||
; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
; DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
; SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
; CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
; OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
; SPDX-License-Identifier: BSD-3-Clause
|
||||
;******************************************************************************
|
||||
;* @attention
|
||||
;*
|
||||
;* Copyright (c) 2016-2020 STMicroelectronics.
|
||||
;* All rights reserved.
|
||||
;*
|
||||
;* This software component is licensed by ST under BSD 3-Clause license,
|
||||
;* the "License"; You may not use this file except in compliance with the
|
||||
;* License. You may obtain a copy of the License at:
|
||||
;* opensource.org/licenses/BSD-3-Clause
|
||||
;*
|
||||
;******************************************************************************
|
||||
|
||||
#include "../cmsis_nvic.h"
|
||||
|
||||
#if !defined(MBED_APP_START)
|
||||
#define MBED_APP_START 0x08000000
|
||||
#define MBED_APP_START MBED_ROM_START
|
||||
#endif
|
||||
|
||||
#if !defined(MBED_APP_SIZE)
|
||||
#define MBED_APP_SIZE 0x100000
|
||||
#define MBED_APP_SIZE MBED_ROM_SIZE
|
||||
#endif
|
||||
|
||||
#if !defined(MBED_RAM_START)
|
||||
#define MBED_RAM_START 0x20000000
|
||||
#endif
|
||||
|
||||
#if !defined(MBED_RAM_SIZE)
|
||||
#define MBED_RAM_SIZE 0x00020000
|
||||
#endif
|
||||
|
||||
|
||||
#if !defined(MBED_BOOT_STACK_SIZE)
|
||||
#define MBED_BOOT_STACK_SIZE 0x400
|
||||
/* This value is normally defined by the tools to 0x1000 for bare metal and 0x400 for RTOS */
|
||||
#define MBED_BOOT_STACK_SIZE 0x400
|
||||
#endif
|
||||
|
||||
; 97 vectors * 4 bytes = 388 bytes to reserve (0x184) 8-byte aligned = 0x188 (0x184 + 0x4)
|
||||
#define VECTOR_SIZE 0x188
|
||||
/* Round up VECTORS_SIZE to 8 bytes */
|
||||
#define VECTORS_SIZE (((NVIC_NUM_VECTORS * 4) + 7) AND ~7)
|
||||
|
||||
#define RAM_FIXED_SIZE (MBED_BOOT_STACK_SIZE+VECTOR_SIZE)
|
||||
LR_IROM1 MBED_APP_START MBED_APP_SIZE {
|
||||
|
||||
LR_IROM1 MBED_APP_START MBED_APP_SIZE { ; load region size_region
|
||||
|
||||
ER_IROM1 MBED_APP_START MBED_APP_SIZE { ; load address = execution address
|
||||
*.o (RESET, +First)
|
||||
*(InRoot$$Sections)
|
||||
.ANY (+RO)
|
||||
ER_IROM1 MBED_APP_START MBED_APP_SIZE {
|
||||
*.o (RESET, +First)
|
||||
*(InRoot$$Sections)
|
||||
.ANY (+RO)
|
||||
}
|
||||
|
||||
RW_IRAM1 (MBED_RAM_START+VECTOR_SIZE) (MBED_RAM_SIZE-VECTOR_SIZE) { ; RW data
|
||||
.ANY (+RW +ZI)
|
||||
RW_IRAM1 (MBED_RAM_START + VECTORS_SIZE) { ; RW data
|
||||
.ANY (+RW +ZI)
|
||||
}
|
||||
|
||||
ARM_LIB_HEAP AlignExpr(+0, 16) EMPTY (MBED_RAM_SIZE-RAM_FIXED_SIZE+MBED_RAM_START-AlignExpr(ImageLimit(RW_IRAM1), 16)) {
|
||||
ARM_LIB_HEAP AlignExpr(+0, 16) EMPTY (MBED_RAM_START + MBED_RAM_SIZE - MBED_BOOT_STACK_SIZE - AlignExpr(ImageLimit(RW_IRAM1), 16)) { ; Heap growing up
|
||||
}
|
||||
|
||||
ARM_LIB_STACK (MBED_RAM_START+MBED_RAM_SIZE) EMPTY -MBED_BOOT_STACK_SIZE { ; stack
|
||||
ARM_LIB_STACK (MBED_RAM_START + MBED_RAM_SIZE) EMPTY -MBED_BOOT_STACK_SIZE { ; Stack region growing down
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,24 +1,44 @@
|
|||
/* Linker script to configure memory regions. */
|
||||
/*
|
||||
* SPDX-License-Identifier: BSD-3-Clause
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2016-2020 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software component is licensed by ST under BSD 3-Clause license,
|
||||
* the "License"; You may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at:
|
||||
* opensource.org/licenses/BSD-3-Clause
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
#include "../cmsis_nvic.h"
|
||||
|
||||
|
||||
#if !defined(MBED_APP_START)
|
||||
#define MBED_APP_START 0x8000000
|
||||
#define MBED_APP_START MBED_ROM_START
|
||||
#endif
|
||||
|
||||
#if !defined(MBED_APP_SIZE)
|
||||
#define MBED_APP_SIZE 1024k
|
||||
#define MBED_APP_SIZE MBED_ROM_SIZE
|
||||
#endif
|
||||
|
||||
#if !defined(MBED_BOOT_STACK_SIZE)
|
||||
#define MBED_BOOT_STACK_SIZE 0x400
|
||||
/* This value is normally defined by the tools
|
||||
to 0x1000 for bare metal and 0x400 for RTOS */
|
||||
#define MBED_BOOT_STACK_SIZE 0x400
|
||||
#endif
|
||||
|
||||
STACK_SIZE = MBED_BOOT_STACK_SIZE;
|
||||
/* Round up VECTORS_SIZE to 8 bytes */
|
||||
#define VECTORS_SIZE (((NVIC_NUM_VECTORS * 4) + 7) & 0xFFFFFFF8)
|
||||
|
||||
/* Linker script to configure memory regions. */
|
||||
/* 97 vectors * 4 bytes = 388 bytes to reserve (0x184) */
|
||||
/* 8-byte aligned(0x184) = 0x188 */
|
||||
MEMORY
|
||||
{
|
||||
FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
|
||||
RAM (rwx) : ORIGIN = 0x20000188, LENGTH = 128K - 0x188
|
||||
FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
|
||||
RAM (rwx) : ORIGIN = MBED_RAM_START + VECTORS_SIZE, LENGTH = MBED_RAM_SIZE - VECTORS_SIZE
|
||||
}
|
||||
|
||||
/* Linker script to place sections and symbol values. Should be used together
|
||||
|
|
@ -56,6 +76,7 @@ SECTIONS
|
|||
{
|
||||
KEEP(*(.isr_vector))
|
||||
*(.text*)
|
||||
|
||||
KEEP(*(.init))
|
||||
KEEP(*(.fini))
|
||||
|
||||
|
|
@ -92,7 +113,7 @@ SECTIONS
|
|||
|
||||
__etext = .;
|
||||
_sidata = .;
|
||||
|
||||
|
||||
.data : AT (__etext)
|
||||
{
|
||||
__data_start__ = .;
|
||||
|
|
@ -113,7 +134,6 @@ SECTIONS
|
|||
KEEP(*(.init_array))
|
||||
PROVIDE_HIDDEN (__init_array_end = .);
|
||||
|
||||
|
||||
. = ALIGN(8);
|
||||
/* finit data */
|
||||
PROVIDE_HIDDEN (__fini_array_start = .);
|
||||
|
|
@ -129,6 +149,19 @@ SECTIONS
|
|||
|
||||
} > RAM
|
||||
|
||||
/* Uninitialized data section
|
||||
* This region is not initialized by the C/C++ library and can be used to
|
||||
* store state across soft reboots. */
|
||||
.uninitialized (NOLOAD):
|
||||
{
|
||||
. = ALIGN(32);
|
||||
__uninitialized_start = .;
|
||||
*(.uninitialized)
|
||||
KEEP(*(.keep.uninitialized))
|
||||
. = ALIGN(32);
|
||||
__uninitialized_end = .;
|
||||
} > RAM
|
||||
|
||||
.bss :
|
||||
{
|
||||
. = ALIGN(8);
|
||||
|
|
@ -144,9 +177,9 @@ SECTIONS
|
|||
.heap (COPY):
|
||||
{
|
||||
__end__ = .;
|
||||
end = __end__;
|
||||
PROVIDE(end = .);
|
||||
*(.heap*)
|
||||
. = ORIGIN(RAM) + LENGTH(RAM) - STACK_SIZE;
|
||||
. = ORIGIN(RAM) + LENGTH(RAM) - MBED_BOOT_STACK_SIZE;
|
||||
__HeapLimit = .;
|
||||
} > RAM
|
||||
|
||||
|
|
@ -162,7 +195,7 @@ SECTIONS
|
|||
* size of stack_dummy section */
|
||||
__StackTop = ORIGIN(RAM) + LENGTH(RAM);
|
||||
_estack = __StackTop;
|
||||
__StackLimit = __StackTop - STACK_SIZE;
|
||||
__StackLimit = __StackTop - MBED_BOOT_STACK_SIZE;
|
||||
PROVIDE(__stack = __StackTop);
|
||||
|
||||
/* Check if data + heap + stack exceeds RAM limit */
|
||||
|
|
|
|||
|
|
@ -1,36 +1,59 @@
|
|||
if (!isdefinedsymbol(MBED_APP_START)) { define symbol MBED_APP_START = 0x08000000; }
|
||||
if (!isdefinedsymbol(MBED_APP_SIZE)) { define symbol MBED_APP_SIZE = 0x100000; }
|
||||
/* Linker script to configure memory regions.
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-3-Clause
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2016-2020 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software component is licensed by ST under BSD 3-Clause license,
|
||||
* the "License"; You may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at:
|
||||
* opensource.org/licenses/BSD-3-Clause
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* Device specific values */
|
||||
|
||||
/* [ROM = 1024kb = 0x100000] */
|
||||
define symbol __intvec_start__ = MBED_APP_START;
|
||||
define symbol __region_ROM_start__ = 0x08000000;
|
||||
define symbol __region_ROM_end__ = MBED_APP_START + MBED_APP_SIZE - 1;
|
||||
/* Tools provide -DMBED_ROM_START=xxx -DMBED_ROM_SIZE=xxx -DMBED_RAM_START=xxx -DMBED_RAM_SIZE=xxx */
|
||||
|
||||
/* [RAM = 128kb = 0x20000] Vector table dynamic copy: 97 vectors = 388 bytes (0x184) to be reserved in RAM */
|
||||
define symbol __NVIC_start__ = 0x20000000;
|
||||
define symbol __NVIC_end__ = 0x20000187; /*aligned on 8 bytes */
|
||||
define symbol __region_RAM_start__ = 0x20000188;
|
||||
define symbol __region_RAM_end__ = 0x2001FFFF;
|
||||
define symbol VECTORS = 97; /* This value must match NVIC_NUM_VECTORS in cmsis_nvic.h */
|
||||
define symbol HEAP_SIZE = 0xa000;
|
||||
|
||||
/* Memory regions */
|
||||
define memory mem with size = 4G;
|
||||
define region ROM_region = mem:[from __region_ROM_start__ to __region_ROM_end__];
|
||||
define region RAM_region = mem:[from __region_RAM_start__ to __region_RAM_end__];
|
||||
/* Common - Do not change */
|
||||
|
||||
if (!isdefinedsymbol(MBED_APP_START)) {
|
||||
define symbol MBED_APP_START = MBED_ROM_START;
|
||||
}
|
||||
|
||||
if (!isdefinedsymbol(MBED_APP_SIZE)) {
|
||||
define symbol MBED_APP_SIZE = MBED_ROM_SIZE;
|
||||
}
|
||||
|
||||
/* Stack and Heap */
|
||||
if (!isdefinedsymbol(MBED_BOOT_STACK_SIZE)) {
|
||||
/* This value is normally defined by the tools
|
||||
to 0x1000 for bare metal and 0x400 for RTOS */
|
||||
define symbol MBED_BOOT_STACK_SIZE = 0x400;
|
||||
}
|
||||
define symbol __size_cstack__ = MBED_BOOT_STACK_SIZE;
|
||||
define symbol __size_heap__ = 0xF000;
|
||||
define block CSTACK with alignment = 8, size = __size_cstack__ { };
|
||||
define block HEAP with alignment = 8, size = __size_heap__ { };
|
||||
define block STACKHEAP with fixed order { block HEAP, block CSTACK };
|
||||
|
||||
initialize by copy with packing = zeros { readwrite };
|
||||
/* Round up VECTORS_SIZE to 8 bytes */
|
||||
define symbol VECTORS_SIZE = ((VECTORS * 4) + 7) & ~7;
|
||||
define symbol RAM_REGION_START = MBED_RAM_START + VECTORS_SIZE;
|
||||
define symbol RAM_REGION_SIZE = MBED_RAM_SIZE - VECTORS_SIZE;
|
||||
|
||||
define memory mem with size = 4G;
|
||||
define region ROM_region = mem:[from MBED_APP_START size MBED_APP_SIZE];
|
||||
define region RAM_region = mem:[from RAM_REGION_START size RAM_REGION_SIZE];
|
||||
|
||||
define block CSTACK with alignment = 8, size = MBED_BOOT_STACK_SIZE { };
|
||||
define block HEAP with alignment = 8, size = HEAP_SIZE { };
|
||||
|
||||
initialize by copy { readwrite };
|
||||
do not initialize { section .noinit };
|
||||
|
||||
place at address mem:__intvec_start__ { readonly section .intvec };
|
||||
place at address mem: MBED_APP_START { readonly section .intvec };
|
||||
|
||||
place in ROM_region { readonly };
|
||||
place in RAM_region { readwrite, block STACKHEAP };
|
||||
place in RAM_region { readwrite,
|
||||
block CSTACK, block HEAP };
|
||||
|
|
|
|||
|
|
@ -1,40 +1,39 @@
|
|||
/* mbed Microcontroller Library
|
||||
*******************************************************************************
|
||||
* Copyright (c) 2016, STMicroelectronics
|
||||
* All rights reserved.
|
||||
* SPDX-License-Identifier: BSD-3-Clause
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
* <h2><center>© Copyright (c) 2016-2020 STMicroelectronics.
|
||||
* All rights reserved.</center></h2>
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of STMicroelectronics nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
* This software component is licensed by ST under BSD 3-Clause license,
|
||||
* the "License"; You may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at:
|
||||
* opensource.org/licenses/BSD-3-Clause
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*******************************************************************************
|
||||
*/
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
#ifndef MBED_CMSIS_NVIC_H
|
||||
#define MBED_CMSIS_NVIC_H
|
||||
|
||||
// CORE: 16 vectors (= 64 bytes from 0x00 to 0x3F)
|
||||
// MCU Peripherals: 81 vectors
|
||||
// Total: 388 bytes to be reserved in RAM (see scatter file)
|
||||
#if !defined(MBED_ROM_START)
|
||||
#define MBED_ROM_START 0x8000000
|
||||
#endif
|
||||
|
||||
#if !defined(MBED_ROM_SIZE)
|
||||
#define MBED_ROM_SIZE 0x100000 // 1.0 MB
|
||||
#endif
|
||||
|
||||
#if !defined(MBED_RAM_START)
|
||||
#define MBED_RAM_START 0x20000000
|
||||
#endif
|
||||
|
||||
#if !defined(MBED_RAM_SIZE)
|
||||
#define MBED_RAM_SIZE 0x20000 // 128 KB
|
||||
#endif
|
||||
|
||||
#define NVIC_NUM_VECTORS 97
|
||||
#define NVIC_RAM_VECTOR_ADDRESS 0x20000000 // Vectors positioned at start of RAM
|
||||
#define NVIC_RAM_VECTOR_ADDRESS MBED_RAM_START
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -147,6 +147,11 @@ uint8_t SetSysClock_PLL_HSE(uint8_t bypass)
|
|||
regarding system frequency refer to product datasheet. */
|
||||
__HAL_RCC_PWR_CLK_ENABLE();
|
||||
|
||||
// Select HSI as system clock source to allow modification of the PLL configuration
|
||||
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK;
|
||||
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
|
||||
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0);
|
||||
|
||||
// Enable HSE oscillator and activate PLL with HSE as source
|
||||
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
|
||||
if (bypass == 0) {
|
||||
|
|
@ -194,6 +199,11 @@ uint8_t SetSysClock_PLL_HSI(void)
|
|||
regarding system frequency refer to product datasheet. */
|
||||
__HAL_RCC_PWR_CLK_ENABLE();
|
||||
|
||||
// Select HSI as system clock source to allow modification of the PLL configuration
|
||||
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK;
|
||||
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
|
||||
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0);
|
||||
|
||||
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
|
||||
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
|
||||
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
|
||||
|
|
|
|||
Loading…
Reference in New Issue