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@ -1,7 +1,7 @@
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/*
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* This file is part of the EasyFlash Library.
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*
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* Copyright (c) 2015, Armink, <armink.ztl@gmail.com>
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* Copyright (c) 2015-2019, Armink, <armink.ztl@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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@ -32,12 +32,8 @@
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#include <stm32f10x_conf.h>
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/* using ENV function */
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/* using ENV function, default is NG (Next Generation) mode start from V4.0 */
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#define EF_USING_ENV
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/* using wear leveling mode for ENV */
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/* #define EF_ENV_USING_WL_MODE */
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/* using power fail safeguard mode for ENV */
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/* #define EF_ENV_USING_PFS_MODE */
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/* using IAP function */
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#define EF_USING_IAP
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@ -55,13 +51,15 @@
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/* the minimum size of flash erasure */
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#define EF_ERASE_MIN_SIZE PAGE_SIZE /* it is one page for STM3210x */
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/**
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/* the flash write granularity, unit: bit
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* only support 1(nor flash)/ 8(stm32f4)/ 32(stm32f1)/ 64(stm32l4) */
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#define EF_WRITE_GRAN 32
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/*
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*
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* This all Backup Area Flash storage index. All used flash area configure is under here.
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* |----------------------------| Storage Size
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* | Environment variables area | ENV area size @see ENV_AREA_SIZE
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* | 1.system section | ENV_SYSTEM_SIZE
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* | 2:data section | ENV_AREA_SIZE - ENV_SYSTEM_SIZE
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* |----------------------------|
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* | Saved log area | Log area size @see LOG_AREA_SIZE
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* |----------------------------|
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@ -69,42 +67,19 @@
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* |----------------------------|
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*
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* @note all area sizes must be aligned with EF_ERASE_MIN_SIZE
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* @note EasyFlash will use ram to buffer the ENV. At some point flash's EF_ERASE_MIN_SIZE may become so big,
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* and you want to keep ENV size smaller. To do it you must define ENV_USER_SETTING_SIZE for ENV.
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* @note ENV area size has some limitations in different modes.
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* 1.Normal mode: no limitations
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* 2.Wear leveling mode: system section will used a flash section and the data section will use at least 2 flash sections
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* 3.Power fail safeguard mode: ENV area will has a backup. It is twice as normal mode.
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* 4.Wear leveling and power fail safeguard mode: The required capacity will be 2 times the total capacity in wear leveling mode.
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* For example:
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* The EF_ERASE_MIN_SIZE is 128K and the ENV_USER_SETTING_SIZE: 2K. The ENV_AREA_SIZE in different mode you can define
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* 1.Normal mode: 1*EF_ERASE_MIN_SIZE
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* 2.Wear leveling mode: 3*EF_ERASE_MIN_SIZE (It has 2 data section to store ENV. So ENV can erase at least 200,000 times)
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* 3.Power fail safeguard mode: 2*EF_ERASE_MIN_SIZE
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* 4.Wear leveling and power fail safeguard mode: 6*EF_ERASE_MIN_SIZE
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* @note the log area size must be more than twice of EF_ERASE_MIN_SIZE
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*
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* The EasyFlash add the NG (Next Generation) mode start from V4.0. All old mode before V4.0, called LEGACY mode.
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*
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* - NG (Next Generation) mode is default mode from V4.0. It's easy to settings, only defined the ENV_AREA_SIZE.
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* - The LEGACY mode has been DEPRECATED. It is NOT RECOMMENDED to continue using.
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* Beacuse it will use ram to buffer the ENV and spend more flash erase times.
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* If you want use it please using the V3.X version.
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*/
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/* backup area start address */
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#define EF_START_ADDR (FLASH_BASE + 100 * 1024) /* from the chip position: 100KB */
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/* the user setting size of ENV, must be word alignment */
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#define ENV_USER_SETTING_SIZE (2 * 1024)
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#ifndef EF_ENV_USING_PFS_MODE
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#ifndef EF_ENV_USING_WL_MODE
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/* ENV area total bytes size in normal mode. */
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#define ENV_AREA_SIZE (1 * EF_ERASE_MIN_SIZE) /* 2K */
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#else
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/* ENV area total bytes size in wear leveling mode. */
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#define ENV_AREA_SIZE (3 * EF_ERASE_MIN_SIZE) /* 6K */
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#endif
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#else
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#ifndef EF_ENV_USING_WL_MODE
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/* ENV area total bytes size in power fail safeguard mode. */
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#define ENV_AREA_SIZE (2 * EF_ERASE_MIN_SIZE) /* 4K */
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#else
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/* ENV area total bytes size in wear leveling and power fail safeguard mode. */
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#define ENV_AREA_SIZE (6 * EF_ERASE_MIN_SIZE) /* 12K */
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#endif
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#endif
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#define EF_START_ADDR (FLASH_BASE + 100 * 1024) /* from the chip position: 100KB */
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/* ENV area size. It's at least one empty sector for GC. So it's definination must more then or equal 2 flash sector size. */
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#define ENV_AREA_SIZE (2 * EF_ERASE_MIN_SIZE) /* 8K */
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/* saved log area size */
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/* #define LOG_AREA_SIZE (10 * EF_ERASE_MIN_SIZE)*/ /* 20K */
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armink
7 years ago