15 设备驱动W25Q128，读ID正常，写入读出失败，文件系统挂载失败

发布于 2022-07-04 15:55:27 浏览：1525 订阅该版

没有任何报错的地方，就是写入后，读出来数据是空的。
后来使能了写入，也不行。
读写id都是正常的。
最开始还报了让后我吧系统ticks由100改为1000，目前改为1000了。
换了个电源，提示jedec id不对，flash 是0xef6018,手册上写的，是正确的
```c
[I/SFUD] 
Error: This reversion(V68.70) JEDEC basic flash parameter header is not supported.

[I/SFUD] 
Warning: Read SFDP parameter header information failed. The w25q128 is not support JEDEC SFDP.

[I/SFUD] 
Warning: This flash device is not found or not support.

[I/SFUD] 
Error: w25q128 flash device is initialize fail.

[E/SFUD] 
ERROR: SPI flash probe failed by SPI device spi1-w25.
```
另外，那些中间打印信息可以屏蔽么。

代码：
```c
#include <drv_gpio.h>
#include <rtthread.h>
#include <string.h>
//#include "board.h"
#include <drv_spi.h>
#include <finsh.h>
#include "sfud.h"
#include "spi_flash_sfud.h"
#include "dfs_fs.h"

// Private defines / typedefs ---------------------------------------------------

#define EXAMPLES_SPI_BUS_NAME                   "spi1"
#define EXAMPLES_SPI_DEV_NAME                   "spi1-w25"
#define EXAMPLES_SPI_CHIP_NAME                  "w25q128"

#define EXAMPLES_SPI_BUF_LEN                    32
#define EXAMPLES_SPI_BUF_STR                    "This is a spi flash r/w demo."

// Private variables ------------------------------------------------------------

int spi_test_count = 0;

// Public variables -------------------------------------------------------------

// Private functions prototypes -------------------------------------------------

// Functions --------------------------------------------------------------------

int examples_spi_flash(int argc, char *argv[])
{
    struct rt_spi_device *spi_dev_w25q128;
    char name[RT_NAME_MAX];
    rt_uint8_t dev_id = 0x90;
    rt_uint8_t jedec_id = 0x9F;
    rt_uint8_t id[5] = {0};
    rt_err_t res=0;
    
    
    if (spi_test_count == 0)
    {
        rt_pin_mode(22, PIN_MODE_OUTPUT);
        rt_pin_write(22, PIN_HIGH);
        rt_pin_mode(36, PIN_MODE_OUTPUT);
        rt_pin_write(36, PIN_HIGH);
        res = rt_hw_spi_device_attach(EXAMPLES_SPI_BUS_NAME, EXAMPLES_SPI_DEV_NAME, GPIOA, GPIO_PIN_8);
        rt_kprintf("spi device attach result = %d\r\n", res);
        spi_test_count = 1;
        rt_thread_delay(100);
    }

if (argc == 2)
    {
        strncpy(name, argv[1], RT_NAME_MAX);
    }
    else
    {
        strncpy(name, EXAMPLES_SPI_BUS_NAME, RT_NAME_MAX);
    }

/* find spi device */
    spi_dev_w25q128 = (struct rt_spi_device *)rt_device_find(EXAMPLES_SPI_DEV_NAME);	
    if (!spi_dev_w25q128)
    {
        rt_kprintf("spi sample run failed! can't find %s device!\r\n", name);
    }
    else
    {
        struct rt_spi_configuration cfg;
        cfg.data_width = 8;
        cfg.mode       = RT_SPI_MODE_0 | RT_SPI_MSB | RT_SPI_MASTER; /* SPI Compatible Modes 0 and 3 */
        cfg.max_hz     = 2000000;//66000000;                   /* Atmel RapidS Serial Interface: 66MHz Maximum Clock Frequency */
        res = rt_spi_configure(spi_dev_w25q128, &cfg);
        rt_kprintf("spi device config result = %d\r\n", res);
    }

//读设备ID 和 JEDEC ID
    /* 方式1：使用 rt_spi_send_then_recv()发送命令读取ID */
    rt_spi_send_then_recv(spi_dev_w25q128, &dev_id, 1, id, 5);
    rt_kprintf("use rt_spi_send_then_recv() read w25q ID is: 0x%x%x\r\n", id[3], id[4]);
    rt_spi_send_then_recv(spi_dev_w25q128, &jedec_id, 1, id, 5);
    rt_kprintf("use rt_spi_send_then_recv() read w25q JEDEC ID is: 0x%x%x%x%x%x\r\n", id[0], id[1], id[2], id[3], id[4]);
    
    /* 方式2：使用 rt_spi_transfer_message()发送命令读取ID */
    struct rt_spi_message msg1, msg2;

msg1.send_buf   = &dev_id;
    msg1.recv_buf   = RT_NULL;
    msg1.length     = 1;
    msg1.cs_take    = 1;
    msg1.cs_release = 0;
    msg1.next       = &msg2;

msg2.send_buf   = RT_NULL;
    msg2.recv_buf   = id;
    msg2.length     = 5;
    msg2.cs_take    = 0;
    msg2.cs_release = 1;
    msg2.next       = RT_NULL;

rt_spi_transfer_message(spi_dev_w25q128, &msg1);
    rt_kprintf("use rt_spi_transfer_message() read w25q ID is:%x%x\r\n", id[3], id[4]);
    msg1.send_buf   = &jedec_id;
    msg1.recv_buf   = RT_NULL;
    msg1.length     = 1;
    msg1.cs_take    = 1;
    msg1.cs_release = 0;
    msg1.next       = &msg2;

msg2.send_buf   = RT_NULL;
    msg2.recv_buf   = id;
    msg2.length     = 5;
    msg2.cs_take    = 0;
    msg2.cs_release = 1;
    msg2.next       = RT_NULL;

rt_spi_transfer_message(spi_dev_w25q128, &msg1);
    rt_kprintf("use rt_spi_transfer_message() read w25q JEDEC ID is: 0x%x%x%x%x%x\r\n", id[0], id[1], id[2], id[3], id[4]);

//读写数据
    uint8_t *read_data = NULL;  // 读取到的数据
    uint8_t *write_data = NULL; // 将要写入的数据
    sfud_flash *sfud_dev = NULL;
    sfud_err ret;
//    rt_uint8_t w_enable = 0x06;

//    struct rt_spi_message msg1;
//    msg1.send_buf   = &w_enable;
//    msg1.recv_buf   = RT_NULL;
//    msg1.length     = 1;
//    msg1.cs_take    = 1;
//    msg1.cs_release = 0;
//    msg1.next       = RT_NULL;

//    rt_spi_transfer_message(spi_dev_w25q128, &msg1);
//    rt_kprintf("write enable\r\n");
//    rt_thread_mdelay(1000);
    if (spi_test_count == 1)
    {
        spi_test_count = 2;
        if (RT_NULL == rt_sfud_flash_probe(EXAMPLES_SPI_CHIP_NAME, EXAMPLES_SPI_DEV_NAME))
        {
            return RT_ERROR;
        }
    }
    
    sfud_dev = rt_sfud_flash_find(EXAMPLES_SPI_DEV_NAME); // 获取 sfud_dev
//    sfud_dev = rt_sfud_flash_find_by_dev_name(EXAMPLES_SPI_CHIP_NAME);

write_data = rt_malloc(EXAMPLES_SPI_BUF_LEN);
    rt_memset(write_data, 0, EXAMPLES_SPI_BUF_LEN);
    rt_strncpy(write_data, EXAMPLES_SPI_BUF_STR, rt_strlen(EXAMPLES_SPI_BUF_STR));
    
    ret = sfud_erase_write(sfud_dev, 0, EXAMPLES_SPI_BUF_LEN, write_data); // 将数据 32 字节的 write_data 从 65535 开始写入 flash
    if(ret == SFUD_SUCCESS)
    {
        rt_kprintf("sfud write data at 0 is: %s\r\n", write_data);
    }
    else
    {
        rt_kprintf("sfud write data failed\n");
    }
    read_data = rt_malloc(EXAMPLES_SPI_BUF_LEN);
    rt_memset(read_data, 0, EXAMPLES_SPI_BUF_LEN);
    ret = sfud_read(sfud_dev, 0, EXAMPLES_SPI_BUF_LEN, read_data);   // 读取从 65535 开始的 32 字节，存入 read_data
    if(ret == SFUD_SUCCESS)
    {
        rt_kprintf("sfud read data at 0 is: %s\r\n", read_data);
    }
    else
    {
        rt_kprintf("sfud read data failed\n");
    }

dfs_init();
    elm_init();
    dfs_mkfs(EXAMPLES_SPI_FS_NAME, EXAMPLES_SPI_CHIP_NAME);

if(rt_device_find(EXAMPLES_SPI_CHIP_NAME) != RT_NULL) 
    {
        if(dfs_mount(EXAMPLES_SPI_CHIP_NAME, "/", EXAMPLES_SPI_FS_NAME, 0, 0) == 0)
        {
            rt_kprintf("dfs moutn succ\r\n");
        }
        else
        {
            rt_kprintf("dfs moutn fail\r\n");
        }
    }
    return 0;
}
MSH_CMD_EXPORT(examples_spi_flash, "spi w25q sample");
```

运行打印信息：
```c

\ | /

- RT -     Thread Operating System

/ | \     3.1.5 build Jul  4 2022

2006 - 2020 Copyright by rt-thread team

spi1-w25 attach to spi1 done
spi device attach result = 0

msh />
spi device config result = 0

spi1 init done
spi1 transfer prepare and start
spi1 sendbuf: 20004848, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 20004810, length: 5
spi1 transfer done
use rt_spi_send_then_recv() read w25q ID is: 0x00

spi1 transfer prepare and start
spi1 sendbuf: 2000484C, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 20004810, length: 5
spi1 transfer done
use rt_spi_send_then_recv() read w25q JEDEC ID is: 0xef601800

spi1 transfer prepare and start
spi1 sendbuf: 20004848, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 20004810, length: 5
spi1 transfer done
use rt_spi_transfer_message() read w25q ID is:17ef

spi1 transfer prepare and start
spi1 sendbuf: 2000484C, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 20004810, length: 5
spi1 transfer done
use rt_spi_transfer_message() read w25q JEDEC ID is: 0xef601800

spi1 init done
[W/SFUD] 
[SFUD] Warning: The OS tick(100) is less than 1000. So the flash write will take more time.

spi1 transfer prepare and start
spi1 sendbuf: 20004798, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 20004794, length: 3
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 20004774, recvbuf: 0, length: 5
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 20004788, length: 8
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 2000476C, recvbuf: 0, length: 5
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 20004780, length: 8
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 2000474C, recvbuf: 0, length: 5
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 20004760, length: 36
spi1 transfer done
[I/SFUD] 
Find a Winbond flash chip. Size is 16777216 bytes.

spi1 transfer prepare and start
spi1 sendbuf: 2000478C, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 20004764, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 20004770, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 2000478D, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 20004764, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 20004770, length: 1
spi1 transfer done
[I/SFUD] 
w25q128 flash device is initialize success.

[I/SFUD] 
Probe SPI flash w25q128 by SPI device spi1-w25 success.

spi1 transfer prepare and start
spi1 sendbuf: 200047A4, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 20004794, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 200047A8, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 200047C4, recvbuf: 0, length: 4
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 2000479C, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 200047A8, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 200047A4, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 20004794, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 200047A8, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 200047AC, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 2000479C, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 200047B0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 200013BC, recvbuf: 0, length: 36
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 200047A4, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 200047B0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 200047AC, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 2000479C, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 200047B0, length: 1
spi1 transfer done
sfud write data at 0 is: This is a spi flash r/w demo.

spi1 transfer prepare and start
spi1 sendbuf: 200047BC, recvbuf: 0, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 200047C8, length: 1
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 200047E4, recvbuf: 0, length: 4
spi1 transfer done
spi1 transfer prepare and start
spi1 sendbuf: 0, recvbuf: 2000603C, length: 32
spi1 transfer done
sfud read data at 0 is:

dfs already init.

[E/DFS] 
There is no space to register this file system (elm).

[E/DFS] 
File system (FatFs) was not found.

dfs moutn fail
```

![9.png](https://oss-club.rt-thread.org/uploads/20220704/059d57c3ef49adca67ff5ca2170a19a5.png "9.png")

![8.png](https://oss-club.rt-thread.org/uploads/20220704/ca43c9bf80363c9ec891540471291078.png "8.png")

![7.png](https://oss-club.rt-thread.org/uploads/20220704/f1e9734001fec26343a8658238a46f42.png "7.png")