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Merge pull request #5787 from bcostm/dev_flash_f2 

STM32: Add support of Flash API for STM32F2 devices
pull/5862/head
Martin Kojtal 2018-01-15 15:24:13 +00:00 committed by GitHub
parent 2d83463f9c 0d3e189545
commit 2c6403e67f
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 280 additions and 1 deletions
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54
targets/TARGET_STM/TARGET_STM32F2/TARGET_NUCLEO_F207ZG/device/flash_data.h Normal file
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@ -0,0 +1,54 @@
/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2017, 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.
*******************************************************************************
*/
#ifndef MBED_FLASH_DATA_H
#define MBED_FLASH_DATA_H
#include <stdint.h>
#if DEVICE_FLASH
#define FLASH_SIZE ((uint32_t)0x100000)
/* Base address of the Flash sectors */
#define ADDR_FLASH_SECTOR_0 ((uint32_t)0x08000000) /* Base @ of Sector 0, 16 Kbytes */
#define ADDR_FLASH_SECTOR_1 ((uint32_t)0x08004000) /* Base @ of Sector 1, 16 Kbytes */
#define ADDR_FLASH_SECTOR_2 ((uint32_t)0x08008000) /* Base @ of Sector 2, 16 Kbytes */
#define ADDR_FLASH_SECTOR_3 ((uint32_t)0x0800C000) /* Base @ of Sector 3, 16 Kbytes */
#define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08010000) /* Base @ of Sector 4, 64 Kbytes */
#define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08020000) /* Base @ of Sector 5, 128 Kbytes */
#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08040000) /* Base @ of Sector 6, 128 Kbytes */
#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x08060000) /* Base @ of Sector 7, 128 Kbytes */
#define ADDR_FLASH_SECTOR_8 ((uint32_t)0x08080000) /* Base @ of Sector 8, 128 Kbytes */
#define ADDR_FLASH_SECTOR_9 ((uint32_t)0x080A0000) /* Base @ of Sector 9, 128 Kbytes */
#define ADDR_FLASH_SECTOR_10 ((uint32_t)0x080C0000) /* Base @ of Sector 10, 128 Kbytes */
#define ADDR_FLASH_SECTOR_11 ((uint32_t)0x080E0000) /* Base @ of Sector 11, 128 Kbytes */
#endif
#endif

218
targets/TARGET_STM/TARGET_STM32F2/flash_api.c Normal file
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/* mbed Microcontroller Library
* Copyright (c) 2017 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if DEVICE_FLASH
#include "flash_api.h"
#include "flash_data.h"
#include "platform/mbed_critical.h"
static uint32_t GetSector(uint32_t Address);
static uint32_t GetSectorSize(uint32_t Sector);
static int32_t flash_unlock(void)
{
/* Allow Access to Flash control registers and user Falsh */
if (HAL_FLASH_Unlock()) {
return -1;
} else {
return 0;
}
}
static int32_t flash_lock(void)
{
/* Disable the Flash option control register access (recommended to protect
the option Bytes against possible unwanted operations) */
if (HAL_FLASH_Lock()) {
return -1;
} else {
return 0;
}
}
int32_t flash_init(flash_t *obj)
{
return 0;
}
int32_t flash_free(flash_t *obj)
{
return 0;
}
int32_t flash_erase_sector(flash_t *obj, uint32_t address)
{
static FLASH_EraseInitTypeDef EraseInitStruct;
uint32_t FirstSector;
uint32_t SectorError = 0;
int32_t status = 0;
if ((address >= (FLASH_BASE + FLASH_SIZE)) || (address < FLASH_BASE)) {
return -1;
}
if (flash_unlock() != HAL_OK) {
return -1;
}
/* Get the 1st sector to erase */
FirstSector = GetSector(address);
/* Fill EraseInit structure*/
EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;
EraseInitStruct.VoltageRange = FLASH_VOLTAGE_RANGE_3;
EraseInitStruct.Sector = FirstSector;
EraseInitStruct.NbSectors = 1;
if (HAL_FLASHEx_Erase(&EraseInitStruct, &SectorError) != HAL_OK) {
status = -1;
}
flash_lock();
return status;
}
int32_t flash_program_page(flash_t *obj, uint32_t address, const uint8_t *data, uint32_t size)
{
int32_t status = 0;
if ((address >= (FLASH_BASE + FLASH_SIZE)) || (address < FLASH_BASE)) {
return -1;
}
if (flash_unlock() != HAL_OK) {
return -1;
}
/* Note: If an erase operation in Flash memory also concerns data in the data or instruction cache,
you have to make sure that these data are rewritten before they are accessed during code
execution. If this cannot be done safely, it is recommended to flush the caches by setting the
DCRST and ICRST bits in the FLASH_CR register. */
__HAL_FLASH_DATA_CACHE_DISABLE();
__HAL_FLASH_INSTRUCTION_CACHE_DISABLE();
__HAL_FLASH_DATA_CACHE_RESET();
__HAL_FLASH_INSTRUCTION_CACHE_RESET();
__HAL_FLASH_INSTRUCTION_CACHE_ENABLE();
__HAL_FLASH_DATA_CACHE_ENABLE();
while ((size > 0) && (status == 0)) {
if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_BYTE, address, (uint64_t)*data) != HAL_OK) {
status = -1;
} else {
size--;
address++;
data++;
}
}
flash_lock();
return status;
}
uint32_t flash_get_sector_size(const flash_t *obj, uint32_t address)
{
if ((address >= (FLASH_BASE + FLASH_SIZE)) || (address < FLASH_BASE)) {
return MBED_FLASH_INVALID_SIZE;
} else {
return (GetSectorSize(GetSector(address)));
}
}
uint32_t flash_get_page_size(const flash_t *obj)
{
// Flash of STM32F2 devices can be programed 1 byte at a time
return 1;
}
uint32_t flash_get_start_address(const flash_t *obj)
{
return FLASH_BASE;
}
uint32_t flash_get_size(const flash_t *obj)
{
return FLASH_SIZE;
}
/**
* @brief Gets the sector of a given address
* @param None
* @retval The sector of a given address
*/
static uint32_t GetSector(uint32_t address)
{
uint32_t sector = 0;
uint32_t tmp = address - ADDR_FLASH_SECTOR_0;
/* This function supports 1Mb and 2Mb flash sizes */
#if defined(ADDR_FLASH_SECTOR_16)
if (address & 0x100000) { // handle 2nd bank
/* Sector will be at least 12 */
sector = FLASH_SECTOR_12;
tmp -= 0x100000;
address -= 0x100000;
}
#endif
if (address < ADDR_FLASH_SECTOR_4) { // 16k sectorsize
sector += tmp >>14;
}
#if defined(ADDR_FLASH_SECTOR_5)
else if (address < ADDR_FLASH_SECTOR_5) { //64k sector size
sector += FLASH_SECTOR_4;
} else {
sector += 4 + (tmp >>17);
}
#else
// In case ADDR_FLASH_SECTOR_5 is not defined, sector 4 is the last one.
else { //64k sector size
sector += FLASH_SECTOR_4;
}
#endif
return sector;
}
/**
* @brief Gets sector Size
* @param None
* @retval The size of a given sector
*/
static uint32_t GetSectorSize(uint32_t Sector)
{
uint32_t sectorsize = 0x00;
#if defined(FLASH_SECTOR_16)
if((Sector == FLASH_SECTOR_0) || (Sector == FLASH_SECTOR_1) || (Sector == FLASH_SECTOR_2) ||\
(Sector == FLASH_SECTOR_3) || (Sector == FLASH_SECTOR_12) || (Sector == FLASH_SECTOR_13) ||\
(Sector == FLASH_SECTOR_14) || (Sector == FLASH_SECTOR_15)) {
sectorsize = 16 * 1024;
} else if((Sector == FLASH_SECTOR_4) || (Sector == FLASH_SECTOR_16)) {
#else
if((Sector == FLASH_SECTOR_0) || (Sector == FLASH_SECTOR_1) || (Sector == FLASH_SECTOR_2) ||\
(Sector == FLASH_SECTOR_3)) {
sectorsize = 16 * 1024;
} else if(Sector == FLASH_SECTOR_4) {
#endif
sectorsize = 64 * 1024;
} else {
sectorsize = 128 * 1024;
}
return sectorsize;
}
#endif

7
targets/TARGET_STM/TARGET_STM32F2/objects.h
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@ -145,6 +145,13 @@ struct can_s {
}; };
#endif #endif
#if DEVICE_FLASH
struct flash_s {
/* nothing to be stored for now */
uint32_t dummy;
};
#endif
#define GPIO_IP_WITHOUT_BRR #define GPIO_IP_WITHOUT_BRR
#include "gpio_object.h" #include "gpio_object.h"

2
targets/targets.json
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@ -903,7 +903,7 @@
}, },
"detect_code": ["0835"], "detect_code": ["0835"],
"macros_add": ["USBHOST_OTHER"], "macros_add": ["USBHOST_OTHER"],
"device_has_add": ["ANALOGOUT", "CAN", "SERIAL_ASYNCH", "SERIAL_FC"], "device_has_add": ["ANALOGOUT", "CAN", "SERIAL_ASYNCH", "SERIAL_FC", "FLASH"],
"features": ["LWIP"], "features": ["LWIP"],
"release_versions": ["2", "5"], "release_versions": ["2", "5"],
"device_name": "STM32F207ZG" "device_name": "STM32F207ZG"