挂载失败，Can't enable write status.

发布于 2022-11-03 11:30:17 浏览：1206 订阅该版

[tocm]

外部flash挂载文件系统失败，`[I/SFUD] Error: Can't enable write status`.

- Board: AT_START_F437_V1.0
- MCU: AT32F437ZMT7
- Flash: EN25QH128A-104HIP

## 原理图：
![Dingtalk_20221103112028.jpg](https://oss-club.rt-thread.org/uploads/20221103/c4cd4f8e97c1af083c2f8a2a32f5fbb6.jpg "Dingtalk_20221103112028.jpg")

## 日志：

```
initialize rti_board_start:0 done
initialize rt_hw_qspi_bus_init[D/drv.qspi] qspi1 register success
:0 done
initialize rt_hw_pin_init:0 done
initialize rt_hw_spi_init:0 done

\ | /
- RT -     Thread Operating System
 / | \     4.1.1 build Nov  3 2022 10:47:58
 2006 - 2022 Copyright by RT-Thread team
do components initialization.
initialize rtu:865) The flash device manufacturer ID is 0x1C, memory type ID is 0x70, capacity ID is 0x18.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:131) Check SFDP header is OK. The reversion is V1.0, NPN is 0.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:173) Check JEDEC basic flash parameter header is OK. The table id is 0, reversion is V1.0, length is 9, parameter table pointer is 0x000030.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:203) JEDEC basic flash parameter table info:
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:204) MSB-LSB  3    2    1    0
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:206) [0001] 0xFF 0xB1 0x20 0xED
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:206) [0002] 0x07 0xFF 0xFF 0xFF
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:206) [0003] 0x6B 0x00 0xEB 0x5F
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:206) [0004] 0xBB 0x04 0x3B 0x08
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:206) [0005] 0xFF 0xFF 0xFF 0xFE
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:206) [0006] 0xFF 0x00 0xFF 0xFF
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:206) [0007] 0xEB 0x5F 0xFF 0xFF
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:206) [0008] 0x52 0x0F 0x20 0x0C
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:206) [0009] 0xFF 0x00 0xD8 0x10
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:215) 4 KB Erase is supported throughout the device. Command is 0x20.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:234) Write granularity is 64 bytes or larger.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:250) Block Protect bits in device's status register are solely volatile.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:255) Flash device requires instruction 50h as the write enable prior to performing a volatile write to the status register.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:271) 3-Byte only addressing.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:305) Capacity is 16777216 Bytes.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:311) Flash device supports 4KB block erase. Command is 0x20.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:311) Flash device supports 32KB block erase. Command is 0x52.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud_sfdp.c:311) Flash device supports 64KB block erase. Command is 0xD8.
[I/SFUD] Find a EON flash chip. Size is 16777216 bytes.
[D/SFUD] (/mnt/d/repo/rt-thread/components/drivers/spi/sfud/src/sfud.c:844) Flash device reset success.
[I/SFUD] en25qh128 flash device is initialize success.
flash already enter qspi mode
[I/SFUD] Probe SPI flash en25qh128 by SPI device qspi10 success.
flash sfud success
:0 done
initialize elm_init:0 done
initialize finsh_system_init:0 done
[390 main] HZ 288000000
[390 mnt_init] mkfs elm
[W/time] Cannot find a RTC device!
[I/SFUD] Error: Can't enable write status.
format error, result=1
[410 mnt_init] mount en25qh128
dfs mount failed
msh />
```

------------------------------------
## 挂载成功代码如下：
```c
/**
  *   使能qspi模式
  * @param device : qspi设备
  */
static void w25q128jvx_enter_qspi_mode(struct rt_qspi_device* device)
{
    /* 0x38 enter qpi mode */
    char instruction = 0x38;
    char status = w25q128jv_read_status_register2(device);
    char write_status2_buf[2] = { 0 };

/* 0x31 write status register2 */
    write_status2_buf[0] = 0x31;

status |= 1 << 1;

//w25q128jv写使能
    w25q128jv_write_enable(device);

//写状态寄存器
    write_status2_buf[1] = status;
    rt_qspi_send(device, &write_status2_buf, 2);

//设置qspi模式
    rt_qspi_send(device, &instruction, 1);

rt_thread_mdelay(10);

g_FlashIsEnterQspi = true;
}

/**
  * 挂在设备到qspi总线上
  * @return 挂载状态
  */
static int rt_hw_qspi_flash_with_sfud_init(void)
{
    logi();

/* w25q128jv128挂在qspi总线上 */
    rt_err_t ret = at32_qspi_bus_attach_device("qspi1", "qspi10", RT_NULL, 4, w25q128jvx_enter_qspi_mode, RT_NULL);

if (ret != RT_EOK)
    {
        rt_kprintf("qspi attach device failed\n");
        return -RT_ERROR;
    }

return RT_EOK;
}

/**
 * 注册为快设备
 * @return 状态
 */
static int rt_hw_qspi_block_device_init(void)
{
    rt_hw_qspi_flash_with_sfud_init();

/* w25q128jvh 注册为块设备*/
    if (RT_NULL == rt_sfud_flash_probe(DISK_FLASH_DEV_NAME, "qspi10"))
    {
        rt_kprintf("flash sfud failed\n");
        return -RT_ERROR;
    }

return RT_EOK;
}
/*设备自动初始化 */
INIT_DEVICE_EXPORT(rt_hw_qspi_block_device_init);

/**
 * qspi退出qpi模式，并复位
 */
void w25q128jv_reset()
{
    /*
     * Reset Quad I / O(RSTQIO) (FFh) or Release Quad I / O Fast Read Enhancement Mode(FFh)
     * 0xff This command can’t be used in Standard SPI mode.
     */
    qspi_cmd_type cmd;
    cmd.pe_mode_enable = FALSE;
    cmd.pe_mode_operate_code = 0;
    cmd.instruction_code = 0xFF;
    cmd.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
    cmd.address_code = 0;
    cmd.address_length = QSPI_CMD_ADRLEN_0_BYTE;
    cmd.data_counter = 0;
    cmd.second_dummy_cycle_num = 0;
    cmd.operation_mode = QSPI_OPERATE_MODE_444;
    cmd.read_status_config = QSPI_RSTSC_HW_AUTO;
    cmd.read_status_enable = FALSE;
    cmd.write_data_enable = TRUE;
     qspi_cmd_operation_kick(QSPI1, &cmd);

/* wait command completed */
     while (qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
     qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);

cmd.pe_mode_enable = FALSE;
     cmd.pe_mode_operate_code = 0;
     cmd.instruction_code = 0x66;
     cmd.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
     cmd.address_code = 0;
     cmd.address_length = QSPI_CMD_ADRLEN_0_BYTE;
     cmd.data_counter = 0;
     cmd.second_dummy_cycle_num = 0;
     cmd.operation_mode = QSPI_OPERATE_MODE_111;
     cmd.read_status_config = QSPI_RSTSC_HW_AUTO;
     cmd.read_status_enable = FALSE;
     cmd.write_data_enable = TRUE;
     qspi_cmd_operation_kick(QSPI1, &cmd);

/* wait command completed */
     while (qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
     qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);

cmd.pe_mode_enable = FALSE;
     cmd.pe_mode_operate_code = 0;
     cmd.instruction_code = 0x99;
     cmd.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
     cmd.address_code = 0;
     cmd.address_length = QSPI_CMD_ADRLEN_0_BYTE;
     cmd.data_counter = 0;
     cmd.second_dummy_cycle_num = 0;
     cmd.operation_mode = QSPI_OPERATE_MODE_111;
     cmd.read_status_config = QSPI_RSTSC_HW_AUTO;
     cmd.read_status_enable = FALSE;
     cmd.write_data_enable = TRUE;
     qspi_cmd_operation_kick(QSPI1, &cmd);

/* wait command completed */
     while (qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
     qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);

volatile u32 i = 0xffff;
     while (i-- > 0);
}

/**
  * @brief  at32_qspi_init
  * @param  
  * @retval none
  */
static int at32_qspi_init(struct rt_qspi_device *device, struct rt_qspi_configuration *qspi_cfg)
{
    /* 省略qspi初始化代码 */

/* 复位w25q128jv */
    extern void w25q128jv_reset();
    w25q128jv_reset();

return result;
}
```

3 个回答

LeonRT 2023-03-27

hello

lx1024 2024-03-07

这家伙很懒，什么也没写！

挂载成功代码如下：
```c
/**
  *   使能qspi模式
  * @param device : qspi设备
  */
static void w25q128jvx_enter_qspi_mode(struct rt_qspi_device* device)
{
    /* 0x38 enter qpi mode */
    char instruction = 0x38;
    char status = w25q128jv_read_status_register2(device);
    char write_status2_buf[2] = { 0 };