easyflash的使用外部内存老是报错

发布于 2018-12-22 20:09:18 浏览：2123 订阅该版

由于需求在内部flash中存取50*12k的数据量，所以加大了ENV_USER_SETTING_SIZE ，用外部内存进行管理，有时候一次性存取正确，有时候存取出错，代码都出错在stm32f4xxflash.o，看了一天多的代码了，不知道外部内存，如何统一管理，只使用内部那么一点内存达不到要求

#define EF_START_ADDR             (FLASH_BASE + 2*1024*1024 - 5*128 * 1024) /* on the chip position: 128KB */
/* the user setting size of ENV, must be word alignment */
#define     (5*128*1024)
#ifndef EF_ENV_USING_PFS_MODE
    #ifndef EF_ENV_USING_WL_MODE
        /* ENV area total bytes size in normal mode. */
        #define ENV_AREA_SIZE          (5 * EF_ERASE_MIN_SIZE)      /* 128K */
    #else
        /* ENV area total bytes size in wear leveling mode. */
        #define ENV_AREA_SIZE          (3 * EF_ERASE_MIN_SIZE)      /* 384K */
    #endif
#else
    #ifndef EF_ENV_USING_WL_MODE
        /* ENV area total bytes size in power fail safeguard mode. */
        #define ENV_AREA_SIZE          (2 * EF_ERASE_MIN_SIZE)      /* 256K */
    #else
        /* ENV area total bytes size in wear leveling and power fail safeguard mode. */
        #define ENV_AREA_SIZE          (6 * EF_ERASE_MIN_SIZE)      /* 768K */
    #endif
#endif
/* saved log area size */
/* #define LOG_AREA_SIZE             (2 * EF_ERASE_MIN_SIZE)*/      /* 256K */

/* print debug information of flash */
#define PRINT_DEBUG

#endif /* EF_CFG_H_ */

//static uint32_t env_cache[ENV_USER_SETTING_SIZE / 4] = { 0 };
static uint8_t *env_cache1=RT_NULL;
static uint32_t *env_cache=RT_NULL;
/* ENV start address in flash */

加入下面的代码
 env_cache1=rt_malloc(ENV_USER_SETTING_SIZE);
 rt_memset(env_cache1,0,ENV_USER_SETTING_SIZE);
env_cache=(uint32_t *)env_cache1;

2 个回答

hcb900330 2018-12-22

这家伙很懒，什么也没写！

#ifndef EF_CFG_H_
#define EF_CFG_H_
#include "rtthread.h"
#include <stm32f4xx_conf.h>

/* using ENV function */
#define EF_USING_ENV
//#define EF_ENV_USING_WL_MODE
/* using wear leveling mode for ENV */
/* #define EF_ENV_USING_WL_MODE */
//#define EF_ENV_USING_WL_MODE
/* using power fail safeguard mode for ENV */
/* #define EF_ENV_USING_PFS_MODE */

/* using IAP function */
//#define EF_USING_IAP

/* using save log function */
/* #define EF_USING_LOG */

/* the minimum size of flash erasure */
#define EF_ERASE_MIN_SIZE         (128*1024)              /* it is 128K for compatibility */

/**
 *
 * This all Backup Area Flash storage index. All used flash area configure is under here.
 * |----------------------------|   Storage Size
 * | Environment variables area |   ENV area size @see ENV_AREA_SIZE
 * |      1.system section      |   ENV_SYSTEM_SIZE
 * |      2:data section        |   ENV_AREA_SIZE - ENV_SYSTEM_SIZE
 * |----------------------------|
 * |      Saved log area        |   Log area size @see LOG_AREA_SIZE
 * |----------------------------|
 * |(IAP)Downloaded application |   IAP already downloaded application, unfixed size
 * |----------------------------|
 *
 * @note all area size must be aligned with EF_ERASE_MIN_SIZE
 * @note EasyFlash will use ram to buffered the ENV.At some time some flash's EF_ERASE_MIN_SIZE is so big,
 *       and you want use ENV size is less than it. So you must defined ENV_USER_SETTING_SIZE for ENV.
 * @note ENV area size has some limitations in different modes.
 *       1.Normal mode: no more limitations
 *       2.Wear leveling mode: system section will used an flash section and the data section will used at least 2 flash sections
 *       3.Power fail safeguard mode: ENV area will has an backup. It is twice as normal mode.
 *       4.wear leveling and power fail safeguard mode: The required capacity will be 2 times the total capacity in wear leveling mode.
 *       For example:
 *       The EF_ERASE_MIN_SIZE is 128K and the ENV_USER_SETTING_SIZE: 2K. The ENV_AREA_SIZE in different mode you can define
 *       1.Normal mode: 1*EF_ERASE_MIN_SIZE
 *       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)
 *       3.Power fail safeguard mode: 2*EF_ERASE_MIN_SIZE
 *       4.Wear leveling and power fail safeguard mode: 6*EF_ERASE_MIN_SIZE
 * @note the log area size must be more than twice of EF_ERASE_MIN_SIZE
 */
/* backup area start address */

#define EF_START_ADDR             (FLASH_BASE + 2*1024*1024 - 5*128 * 1024) /* on the chip position: 128KB */
/* the user setting size of ENV, must be word alignment */
#define ENV_USER_SETTING_SIZE     (5*128*1024)
#ifndef EF_ENV_USING_PFS_MODE
    #ifndef EF_ENV_USING_WL_MODE
        /* ENV area total bytes size in normal mode. */
        #define ENV_AREA_SIZE          (5 * EF_ERASE_MIN_SIZE)      /* 128K */
    #else
        /* ENV area total bytes size in wear leveling mode. */
        #define ENV_AREA_SIZE          (3 * EF_ERASE_MIN_SIZE)      /* 384K */
    #endif
#else
    #ifndef EF_ENV_USING_WL_MODE
        /* ENV area total bytes size in power fail safeguard mode. */
        #define ENV_AREA_SIZE          (2 * EF_ERASE_MIN_SIZE)      /* 256K */
    #else
        /* ENV area total bytes size in wear leveling and power fail safeguard mode. */
        #define ENV_AREA_SIZE          (6 * EF_ERASE_MIN_SIZE)      /* 768K */
    #endif
#endif
/* saved log area size */
/* #define LOG_AREA_SIZE             (2 * EF_ERASE_MIN_SIZE)*/      /* 256K */

/* print debug information of flash */
#define PRINT_DEBUG

#endif /* EF_CFG_H_ */

hcb900330 2018-12-24

这家伙很懒，什么也没写！

用cmBacktrace追踪出来这么一个打印
Firmware name: CmBacktrace, hardware version: 2.1, software version: 2.1
Fault on interrupt or bare metal(no OS) environment
Error: Main stack(80000067) was overflow
===== Thread stack information =====
====================================
Bus fault is caused by precise data access violation
The bus fault occurred address is 6f732209
Dump call stack has an error
psr: 0x00000000
 pc: 0x0800b043
 lr: 0x0800b03f
r12: 0x0800b03b
r03: 0x0801c3b5
r02: 0x0800b039
r01: 0x08016c15
r00: 0x20014098
hard fault on thread: tshell
thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
MQTT_MAN  10  suspend 0x00000074 0x00000400    11%   0x00000014 000
sub       20  suspend 0x00000284 0x0004b000    00%   0x00000014 000
etx       15  suspend 0x00000094 0x00000200    28%   0x00000010 000
erx       15  suspend 0x00000094 0x00000200    60%   0x0000000f 000
tcpip     12  suspend 0x000000d8 0x00000400    53%   0x0000000d 000
phy       30  ready   0x0000008