文件系统操作样例代码

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james 2024-07-30 17:53:43 +08:00
parent 2aa7cb18ce
commit 6ce2813f70
2 changed files with 101 additions and 0 deletions

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@ -238,6 +238,8 @@ W25Q64→注册为spi20设备挂载到spi2总线上**SPI设备**)→*通
![分区表](image-2.png)
[文件系统操作样例代码](Day5\filesystem.c)
### DFS结合FAL配置W25Q64
![DFS结合FAL配置W25Q64](image-1.png)
1. 开启板上外设

99
Day5/filesystem.c Normal file
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//记得在menuconfig中开启支持旧版本功能Support legacy version
#include <board.h>
#include <rtthread.h>
#include <drv_gpio.h>
#include <dfs_posix.h>//需要添加软件包进这里
//定义要写入的内容
char String[] = "Hello, RT-Thread.Welcom to RSOC!";
//定义接受文件内容的缓冲区
char buffer[100] = {};
void FileSystem_Test(void *parameter)
{
//文件描述符
int fd;
//用只写方式打开文件,如果没有该文件,则创建一个文件
fd = open("/fal/FileTest.txt", O_WRONLY | O_CREAT);
//如果打开成功
if (fd >= 0)
{
//写入文件
write(fd, String, sizeof(String));
rt_kprintf("Write done.\n");
//关闭文件
close(fd);
}
else
{
rt_kprintf("File Open Fail.\n");
}
//用只读方式打开文件
fd = open("/fal/FileTest.txt", O_RDONLY);
if (fd>= 0)
{
//读取文件内容
rt_uint32_t size = read(fd, buffer, sizeof(buffer));
if (size < 0)
{
rt_kprintf("Read File Fail.\n");
return ;
}
//输出文件内容
rt_kprintf("Read from file test.txt : %s \n", buffer);
//关闭文件
close(fd);
}
else
{
rt_kprintf("File Open Fail.\n");
}
}
//导出命令
MSH_CMD_EXPORT(FileSystem_Test, FileSystem_Test);
static void readdir_sample(void)
{
DIR *dirp;
struct dirent *d;
/* 打开 / dir_test 目录 */
dirp = opendir("/fal");
if (dirp == RT_NULL)
{
rt_kprintf("open directory error!\n");
}
else
{
/* 读取目录 */
while ((d = readdir(dirp)) != RT_NULL)
{
rt_kprintf("found %s\n", d->d_name);
}
/* 关闭目录 */
closedir(dirp);
}
}
/* 导出到 msh 命令列表中 */
MSH_CMD_EXPORT(readdir_sample, readdir sample);
/*
#define WIFI_CS GET_PIN(F, 10)
void WIFI_CS_PULL_DOWM(void)
{
rt_pin_mode(WIFI_CS, PIN_MODE_OUTPUT);
rt_pin_write(WIFI_CS, PIN_LOW);
}
INIT_BOARD_EXPORT(WIFI_CS GET_PIN);
*/