一、开发环境
硬件：野火 stm32f407 开发板。
软件：rt-thread v4.1.1 stm32f407-atk-explorer bsp包。
注意：
FAL：Flash 抽象层。在 V4.1.0 中，将 fal 软件包重新定义为 RT-Thread 内部组件 ，在使用方式上和以前有这些区别：
（1）原本使用 fal 需要在 RT-Thread 的包管理器中选择并进行下载；
（2）现在只需要在组件中打开使用即可。
二、stm32f407 flash介绍
根据数据手册和参考手册可知道，stm32f407zgt6 内部 flash 大小为 1Mbytes=1024Kbytes，分为 4个 16Kbytes，1个 64 Kbytes，7个 128 Kbytes。
三、FAL 软件包介绍
3.1 介绍
FAL (Flash Abstraction Layer) Flash 抽象层 ，是对 Flash 及基于 Flash 的分区进行管理、操作的抽象层，对上层统一了 Flash 及 分区操作的 API (框架图如下所示)，并具有以下特性：
1、支持静态可配置的分区表，并可关联多个 Flash 设备；
2、分区表支持 自动装载 。避免在多固件项目，分区表被多次定义的问题；
3、代码精简，对操作系统 无依赖 ，可运行于裸机平台，比如对资源有一定要求的 Bootloader；
4、统一的操作接口。保证了文件系统、OTA、NVM（例如：EasyFlash） 等对 Flash 有一定依赖的组件，底层 Flash 驱动的可重用性；
5、自带基于 Finsh/MSH 的测试命令，可以通过 Shell 按字节寻址的方式操作（读写擦） Flash 或分区，方便开发者进行调试、测试；
3.2 FAL 目录
| 名称 | 说明 |
|---|---|
| inc | 头文件目录 |
| src | 源代码目录 |
| samples | 例程目录 |
3.3 FAL API
四、配置方法
使用 FAL 的基本步骤如下所示：
1、打开 FAL：从 Env 中打开 fal 软件包并下载到工程。在 V4.1.0 中，将 fal 软件包重新定义为 RT-Thread 内部组件，在组件中打开即可 。
2、FAL 移植：定义 flash 设备、定义 flash 设备表、定义 flash 分区表。
3、调用 fal_init() 初始化该库：移植完成后，可在应用层调用，如在 main 函数中调用。
4.1 配置
使能 片上flash
打开 FAL，使用的是 4.1.1版本，所以在组件中打开使用 。
每个功能的配置说明如下：
1、开启调试日志输出（默认开启）；
2、分区表是否在 fal_cfg.h 中定义（默认开启）。如果关闭此选项，fal 将会自动去指定 Flash 的指定位置去检索并装载分区表，具体配置详见下面两个选项；
- 存放分区表的 Flash 设备；
- 分区表的 结束地址 位于 Flash 设备上的偏移。fal 将从此地址开始往回进行检索分区表，直接读取到 Flash 顶部。如果不确定分区表具体位置，这里也可以配置为 Flash 的结束地址，fal 将会检索整个 Flash，检索时间可能会增加。
3、启用 FAL 针对 SFUD 的移植文件（默认关闭）；
- 应输入调用 rt_sfud_flash_probe 函数时传入的 FLASH 设备名称（也可以通过 list_device 命令查看 Block Device 的名字获取）。该名称与分区表中的 Flash 名称对应，只有正确设置设备名字，才能完成对 FLASH 的读写操作。
然后让 RT-Thread 的包管理器自动更新，或者使用 pkgs --update 命令更新包到 BSP 中。
将 测试参考文件中的 fal_cfg.h 文件放入 fal 文件夹的 头文件下
修改 片上 flash 的驱动 和 fal 的配置 。主要定义 flash 设备、定义 flash 设备表、定义 flash 分区表。
定义flash设备
打开 drv_flash_f4.c 文件，会发现如下提示：
修改 drv_flash_f4.c ，增加 一下宏定义
//芯片型号：STM32407xG
//起始地址
#define STM32_FLASH_START_ADRESS_16K ADDR_FLASH_SECTOR_0
#define STM32_FLASH_START_ADRESS_64K ADDR_FLASH_SECTOR_4
#define STM32_FLASH_START_ADRESS_128K ADDR_FLASH_SECTOR_5
//大小
#define FLASH_SIZE_GRANULARITY_16K (4*16*1024) //4个16K
#define FLASH_SIZE_GRANULARITY_64K (64*1024) //1个64K
#define FLASH_SIZE_GRANULARITY_128K (7*128*1024) //7个128K
完整代码如下：
/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-12-5 SummerGift first version
*/
#include "board.h"
#ifdef BSP_USING_ON_CHIP_FLASH
#include "drv_config.h"
#include "drv_flash.h"
#if defined(RT_USING_FAL)
#include "fal.h"
#endif
//#define DRV_DEBUG
#define LOG_TAG "drv.flash"
#include <drv_log.h>
/* Base address of the Flash sectors Bank 1 */
#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 */
/* Base address of the Flash sectors Bank 2 */
#define ADDR_FLASH_SECTOR_12 ((uint32_t)0x08100000) /* Base @ of Sector 0, 16 Kbytes */
#define ADDR_FLASH_SECTOR_13 ((uint32_t)0x08104000) /* Base @ of Sector 1, 16 Kbytes */
#define ADDR_FLASH_SECTOR_14 ((uint32_t)0x08108000) /* Base @ of Sector 2, 16 Kbytes */
#define ADDR_FLASH_SECTOR_15 ((uint32_t)0x0810C000) /* Base @ of Sector 3, 16 Kbytes */
#define ADDR_FLASH_SECTOR_16 ((uint32_t)0x08110000) /* Base @ of Sector 4, 64 Kbytes */
#define ADDR_FLASH_SECTOR_17 ((uint32_t)0x08120000) /* Base @ of Sector 5, 128 Kbytes */
#define ADDR_FLASH_SECTOR_18 ((uint32_t)0x08140000) /* Base @ of Sector 6, 128 Kbytes */
#define ADDR_FLASH_SECTOR_19 ((uint32_t)0x08160000) /* Base @ of Sector 7, 128 Kbytes */
#define ADDR_FLASH_SECTOR_20 ((uint32_t)0x08180000) /* Base @ of Sector 8, 128 Kbytes */
#define ADDR_FLASH_SECTOR_21 ((uint32_t)0x081A0000) /* Base @ of Sector 9, 128 Kbytes */
#define ADDR_FLASH_SECTOR_22 ((uint32_t)0x081C0000) /* Base @ of Sector 10, 128 Kbytes */
#define ADDR_FLASH_SECTOR_23 ((uint32_t)0x081E0000) /* Base @ of Sector 11, 128 Kbytes */
//芯片型号：STM32407xG
//起始地址
#define STM32_FLASH_START_ADRESS_16K ADDR_FLASH_SECTOR_0
#define STM32_FLASH_START_ADRESS_64K ADDR_FLASH_SECTOR_4
#define STM32_FLASH_START_ADRESS_128K ADDR_FLASH_SECTOR_5
//大小
#define FLASH_SIZE_GRANULARITY_16K (4*16*1024) //4个16K
#define FLASH_SIZE_GRANULARITY_64K (64*1024) //1个64K
#define FLASH_SIZE_GRANULARITY_128K (7*128*1024) //7个128K
/**
* @brief Gets the sector of a given address
* @param None
* @retval The sector of a given address
*/
static rt_uint32_t GetSector(rt_uint32_t Address)
{
rt_uint32_t sector = 0;
if((Address < ADDR_FLASH_SECTOR_1) && (Address >= ADDR_FLASH_SECTOR_0))
{
sector = FLASH_SECTOR_0;
}
else if((Address < ADDR_FLASH_SECTOR_2) && (Address >= ADDR_FLASH_SECTOR_1))
{
sector = FLASH_SECTOR_1;
}
else if((Address < ADDR_FLASH_SECTOR_3) && (Address >= ADDR_FLASH_SECTOR_2))
{
sector = FLASH_SECTOR_2;
}
else if((Address < ADDR_FLASH_SECTOR_4) && (Address >= ADDR_FLASH_SECTOR_3))
{
sector = FLASH_SECTOR_3;
}
else if((Address < ADDR_FLASH_SECTOR_5) && (Address >= ADDR_FLASH_SECTOR_4))
{
sector = FLASH_SECTOR_4;
}
else if((Address < ADDR_FLASH_SECTOR_6) && (Address >= ADDR_FLASH_SECTOR_5))
{
sector = FLASH_SECTOR_5;
}
else if((Address < ADDR_FLASH_SECTOR_7) && (Address >= ADDR_FLASH_SECTOR_6))
{
sector = FLASH_SECTOR_6;
}
else if((Address < ADDR_FLASH_SECTOR_8) && (Address >= ADDR_FLASH_SECTOR_7))
{
sector = FLASH_SECTOR_7;
}
#if defined(FLASH_SECTOR_8)
else if((Address < ADDR_FLASH_SECTOR_9) && (Address >= ADDR_FLASH_SECTOR_8))
{
sector = FLASH_SECTOR_8;
}
#endif
#if defined(FLASH_SECTOR_9)
else if((Address < ADDR_FLASH_SECTOR_10) && (Address >= ADDR_FLASH_SECTOR_9))
{
sector = FLASH_SECTOR_9;
}
#endif
#if defined(FLASH_SECTOR_10)
else if((Address < ADDR_FLASH_SECTOR_11) && (Address >= ADDR_FLASH_SECTOR_10))
{
sector = FLASH_SECTOR_10;
}
#endif
#if defined(FLASH_SECTOR_11)
else if((Address < ADDR_FLASH_SECTOR_12) && (Address >= ADDR_FLASH_SECTOR_11))
{
sector = FLASH_SECTOR_11;
}
#endif
#if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx)|| defined(STM32F439xx) || defined(STM32F469xx) || defined(STM32F479xx)
else if((Address < ADDR_FLASH_SECTOR_13) && (Address >= ADDR_FLASH_SECTOR_12))
{
sector = FLASH_SECTOR_12;
}
else if((Address < ADDR_FLASH_SECTOR_14) && (Address >= ADDR_FLASH_SECTOR_13))
{
sector = FLASH_SECTOR_13;
}
else if((Address < ADDR_FLASH_SECTOR_15) && (Address >= ADDR_FLASH_SECTOR_14))
{
sector = FLASH_SECTOR_14;
}
else if((Address < ADDR_FLASH_SECTOR_16) && (Address >= ADDR_FLASH_SECTOR_15))
{
sector = FLASH_SECTOR_15;
}
else if((Address < ADDR_FLASH_SECTOR_17) && (Address >= ADDR_FLASH_SECTOR_16))
{
sector = FLASH_SECTOR_16;
}
else if((Address < ADDR_FLASH_SECTOR_18) && (Address >= ADDR_FLASH_SECTOR_17))
{
sector = FLASH_SECTOR_17;
}
else if((Address < ADDR_FLASH_SECTOR_19) && (Address >= ADDR_FLASH_SECTOR_18))
{
sector = FLASH_SECTOR_18;
}
else if((Address < ADDR_FLASH_SECTOR_20) && (Address >= ADDR_FLASH_SECTOR_19))
{
sector = FLASH_SECTOR_19;
}
else if((Address < ADDR_FLASH_SECTOR_21) && (Address >= ADDR_FLASH_SECTOR_20))
{
sector = FLASH_SECTOR_20;
}
else if((Address < ADDR_FLASH_SECTOR_22) && (Address >= ADDR_FLASH_SECTOR_21))
{
sector = FLASH_SECTOR_21;
}
else if((Address < ADDR_FLASH_SECTOR_23) && (Address >= ADDR_FLASH_SECTOR_22))
{
sector = FLASH_SECTOR_22;
}
else /* (Address < FLASH_END_ADDR) && (Address >= ADDR_FLASH_SECTOR_23) */
{
sector = FLASH_SECTOR_23;
}
#endif
return sector;
}
/**
* Read data from flash.
* @note This operation's units is word.
*
* @param addr flash address
* @param buf buffer to store read data
* @param size read bytes size
*
* @return result
*/
int stm32_flash_read(rt_uint32_t addr, rt_uint8_t *buf, size_t size)
{
size_t i;
if ((addr + size) > STM32_FLASH_END_ADDRESS)
{
LOG_E("read outrange flash size! addr is (0x%p)", (void*)(addr + size));
return -1;
}
for (i = 0; i < size; i++, buf++, addr++)
{
*buf = *(rt_uint8_t *) addr;
}
return size;
}
/**
* Write data to flash.
* @note This operation's units is word.
* @note This operation must after erase. @see flash_erase.
*
* @param addr flash address
* @param buf the write data buffer
* @param size write bytes size
*
* @return result
*/
int stm32_flash_write(rt_uint32_t addr, const rt_uint8_t *buf, size_t size)
{
rt_err_t result = RT_EOK;
rt_uint32_t end_addr = addr + size;
rt_uint32_t written_size = 0;
rt_uint32_t write_size = 0;
if ((end_addr) > STM32_FLASH_END_ADDRESS)
{
LOG_E("write outrange flash size! addr is (0x%p)", (void*)(addr + size));
return -RT_EINVAL;
}
if (size < 1)
{
return -RT_EINVAL;
}
HAL_FLASH_Unlock();
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
while (written_size < size)
{
if (((addr + written_size) % 4 == 0) && (size - written_size >= 4))
{
if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, addr + written_size, *((rt_uint32_t *)(buf + written_size))) == HAL_OK)
{
if (*(rt_uint32_t *)(addr + written_size) != *(rt_uint32_t *)(buf + written_size))
{
result = -RT_ERROR;
break;
}
}
else
{
result = -RT_ERROR;
break;
}
write_size = 4;
}
else if (((addr + written_size) % 2 == 0) && (size - written_size >= 2))
{
if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, addr + written_size, *((rt_uint16_t *)(buf + written_size))) == HAL_OK)
{
if (*(rt_uint16_t *)(addr + written_size) != *(rt_uint16_t *)(buf + written_size))
{
result = -RT_ERROR;
break;
}
}
else
{
result = -RT_ERROR;
break;
}
write_size = 2;
}
else
{
if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_BYTE, addr + written_size, *((rt_uint8_t *)(buf + written_size))) == HAL_OK)
{
if (*(rt_uint8_t *)(addr + written_size) != *(rt_uint8_t *)(buf + written_size))
{
result = -RT_ERROR;
break;
}
}
else
{
result = -RT_ERROR;
break;
}
write_size = 1;
}
written_size += write_size;
}
HAL_FLASH_Lock();
if (result != RT_EOK)
{
return result;
}
return size;
}
/**
* Erase data on flash.
* @note This operation is irreversible.
* @note This operation's units is different which on many chips.
*
* @param addr flash address
* @param size erase bytes size
*
* @return result
*/
int stm32_flash_erase(rt_uint32_t addr, size_t size)
{
rt_err_t result = RT_EOK;
rt_uint32_t FirstSector = 0, NbOfSectors = 0;
rt_uint32_t SECTORError = 0;
if ((addr + size) > STM32_FLASH_END_ADDRESS)
{
LOG_E("ERROR: erase outrange flash size! addr is (0x%p)\n", (void*)(addr + size));
return -RT_EINVAL;
}
if (size < 1)
{
return -RT_EINVAL;
}
/*Variable used for Erase procedure*/
FLASH_EraseInitTypeDef EraseInitStruct;
/* Unlock the Flash to enable the flash control register access */
HAL_FLASH_Unlock();
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
/* Get the 1st sector to erase */
FirstSector = GetSector(addr);
/* Get the number of sector to erase from 1st sector*/
NbOfSectors = GetSector(addr + size - 1) - FirstSector + 1;
/* Fill EraseInit structure*/
EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;
EraseInitStruct.VoltageRange = FLASH_VOLTAGE_RANGE_3;
EraseInitStruct.Sector = FirstSector;
EraseInitStruct.NbSectors = NbOfSectors;
if (HAL_FLASHEx_Erase(&EraseInitStruct, (uint32_t *)&SECTORError) != HAL_OK)
{
result = -RT_ERROR;
goto __exit;
}
__exit:
HAL_FLASH_Lock();
if (result != RT_EOK)
{
return result;
}
LOG_D("erase done: addr (0x%p), size %d", (void*)addr, size);
return size;
}
#if defined(RT_USING_FAL)
static int fal_flash_read_16k(long offset, rt_uint8_t *buf, size_t size);
static int fal_flash_read_64k(long offset, rt_uint8_t *buf, size_t size);
static int fal_flash_read_128k(long offset, rt_uint8_t *buf, size_t size);
static int fal_flash_write_16k(long offset, const rt_uint8_t *buf, size_t size);
static int fal_flash_write_64k(long offset, const rt_uint8_t *buf, size_t size);
static int fal_flash_write_128k(long offset, const rt_uint8_t *buf, size_t size);
static int fal_flash_erase_16k(long offset, size_t size);
static int fal_flash_erase_64k(long offset, size_t size);
static int fal_flash_erase_128k(long offset, size_t size);
const struct fal_flash_dev stm32_onchip_flash_16k =
{
"onchip_flash_16k",
STM32_FLASH_START_ADRESS_16K,
FLASH_SIZE_GRANULARITY_16K,
(16 * 1024),
{
NULL,
fal_flash_read_16k,
fal_flash_write_16k,
fal_flash_erase_16k,
},
8,
};
const struct fal_flash_dev stm32_onchip_flash_64k =
{
"onchip_flash_64k",
STM32_FLASH_START_ADRESS_64K,
FLASH_SIZE_GRANULARITY_64K,
(64 * 1024),
{
NULL,
fal_flash_read_64k,
fal_flash_write_64k,
fal_flash_erase_64k,
},
8,
};
const struct fal_flash_dev stm32_onchip_flash_128k =
{
"onchip_flash_128k",
STM32_FLASH_START_ADRESS_128K,
FLASH_SIZE_GRANULARITY_128K,
(128 * 1024),
{
NULL,
fal_flash_read_128k,
fal_flash_write_128k,
fal_flash_erase_128k,
},
8,
};
static int fal_flash_read_16k(long offset, rt_uint8_t *buf, size_t size)
{
return stm32_flash_read(stm32_onchip_flash_16k.addr + offset, buf, size);
}
static int fal_flash_read_64k(long offset, rt_uint8_t *buf, size_t size)
{
return stm32_flash_read(stm32_onchip_flash_64k.addr + offset, buf, size);
}
static int fal_flash_read_128k(long offset, rt_uint8_t *buf, size_t size)
{
return stm32_flash_read(stm32_onchip_flash_128k.addr + offset, buf, size);
}
static int fal_flash_write_16k(long offset, const rt_uint8_t *buf, size_t size)
{
return stm32_flash_write(stm32_onchip_flash_16k.addr + offset, buf, size);
}
static int fal_flash_write_64k(long offset, const rt_uint8_t *buf, size_t size)
{
return stm32_flash_write(stm32_onchip_flash_64k.addr + offset, buf, size);
}
static int fal_flash_write_128k(long offset, const rt_uint8_t *buf, size_t size)
{
return stm32_flash_write(stm32_onchip_flash_128k.addr + offset, buf, size);
}
static int fal_flash_erase_16k(long offset, size_t size)
{
return stm32_flash_erase(stm32_onchip_flash_16k.addr + offset, size);
}
static int fal_flash_erase_64k(long offset, size_t size)
{
return stm32_flash_erase(stm32_onchip_flash_64k.addr + offset, size);
}
static int fal_flash_erase_128k(long offset, size_t size)
{
return stm32_flash_erase(stm32_onchip_flash_128k.addr + offset, size);
}
#endif
#endif /* BSP_USING_ON_CHIP_FLASH */
注意：
修改 fal_cfg.h 文件，如下：
定义 flash 设备表
extern const struct fal_flash_dev stm32_onchip_flash_16k;
extern const struct fal_flash_dev stm32_onchip_flash_64k;
extern const struct fal_flash_dev stm32_onchip_flash_128k;
/* flash device table */
#define FAL_FLASH_DEV_TABLE \
{ \
&stm32_onchip_flash_16k, \
&stm32_onchip_flash_64k, \
&stm32_onchip_flash_128k, \
}
定义 flash 分区表
#ifdef FAL_PART_HAS_TABLE_CFG
/* partition table */
#define FAL_PART_TABLE \
{ \
{FAL_PART_MAGIC_WORD, "flash16k", "onchip_flash_16k", 0, 64*1024, 0}, \
{FAL_PART_MAGIC_WORD, "flash64k", "onchip_flash_64k", 0, 64*1024, 0}, \
{FAL_PART_MAGIC_WORD, "flash128k_1", "onchip_flash_128k", 0, 1*128*1024, 0}, \
{FAL_PART_MAGIC_WORD, "flash128k_6", "onchip_flash_128k", 1*128*1024, 6*128*1024, 0}, \
}
完整代码如下：
/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-05-17 armink the first version
*/
#ifndef _FAL_CFG_H_
#define _FAL_CFG_H_
#include <rtconfig.h>
#include <board.h>
/* ===================== Flash device Configuration ========================= */
extern const struct fal_flash_dev stm32_onchip_flash_16k;
extern const struct fal_flash_dev stm32_onchip_flash_64k;
extern const struct fal_flash_dev stm32_onchip_flash_128k;
/* flash device table */
#define FAL_FLASH_DEV_TABLE \
{ \
&stm32_onchip_flash_16k, \
&stm32_onchip_flash_64k, \
&stm32_onchip_flash_128k, \
}
/* ====================== Partition Configuration ========================== */
#ifdef FAL_PART_HAS_TABLE_CFG
/* partition table */
#define FAL_PART_TABLE \
{ \
{FAL_PART_MAGIC_WORD, "flash16k", "onchip_flash_16k", 0, 64*1024, 0}, \
{FAL_PART_MAGIC_WORD, "flash64k", "onchip_flash_64k", 0, 64*1024, 0}, \
{FAL_PART_MAGIC_WORD, "flash128k_1", "onchip_flash_128k", 0, 1*128*1024, 0}, \
{FAL_PART_MAGIC_WORD, "flash128k_6", "onchip_flash_128k", 1*128*1024, 6*128*1024, 0}, \
}
#endif /* FAL_PART_HAS_TABLE_CFG */
#endif /* _FAL_CFG_H_ */
注意：
编译，警告提示
rt-thread\components\fal\src\fal_rtt.c(647): warning: #223-D: function "strtol" declared implicitly
添加头文件 #include <stdlib.h> 即可。
五、 测试代码
调用 fal_init() 进行初始化。
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-11-06 SummerGift first version
* 2018-11-19 flybreak add stm32f407-atk-explorer bsp
*/
#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>
#include <fal.h>
/* defined the LED0 pin: PF7 */
#define LED0_PIN GET_PIN(F, 7)
int main(void)
{
/* set LED0 pin mode to output */
rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);
fal_init();
while (1)
{
rt_pin_write(LED0_PIN, PIN_HIGH);
rt_thread_mdelay(500);
rt_pin_write(LED0_PIN, PIN_LOW);
rt_thread_mdelay(500);
}
}
编译下载到开发板。
六、测试结果
fal 指令
fal probe 指令
https://blog.csdn.net/E2242/article/details/134853391
https://shequ.stmicroelectronics.cn/thread-644240-1-1.html
https://www.st.com.cn/zh/microcontrollers-microprocessors/stm32f4-series/documentation.html