156 lines
3.3 KiB
C
156 lines
3.3 KiB
C
#include "bsp.h"
|
||
data_common data_common1;
|
||
FIL fp; /* Pointer to the blank file object */
|
||
FATFS fs;
|
||
UINT btw; /* Number of bytes to write */
|
||
UINT bws;
|
||
u32 send_pos=0;
|
||
DIR DirInf;
|
||
FILINFO FileInf;
|
||
/*
|
||
功能：TF卡数据写入
|
||
参数：fname
|
||
dat
|
||
len
|
||
返回值：无
|
||
|
||
*/
|
||
void FATFS_WriteFile(char *fname,char *dat,u16 len) //写数据到SD卡
|
||
{
|
||
UINT br;
|
||
char name[20];
|
||
sprintf(name,"%s%s",fname,".txt");
|
||
f_mount(0,&fs);
|
||
f_open (&fp,fname,FA_READ|FA_WRITE|FA_OPEN_ALWAYS);
|
||
f_lseek(&fp,f_size(&fp)); //移动到文件的末尾--追加数据
|
||
f_write(&fp,dat,len,&br);
|
||
f_close(&fp);
|
||
f_mount(0,NULL);
|
||
}
|
||
|
||
/*
|
||
功能：TF卡数据写入 时间、电压、经纬度、海拔、传感器数据
|
||
参数：fname
|
||
dat
|
||
len
|
||
返回值：无
|
||
|
||
*/
|
||
FRESULT Data_Write_TF(void)//,char *dat,u16 len
|
||
{
|
||
FRESULT res;
|
||
u8 i=0;
|
||
char name[10]="\0";
|
||
|
||
f_mount(0,&fs);
|
||
res=f_open(&fp,name,FA_READ | FA_WRITE | FA_OPEN_ALWAYS );//0:/
|
||
if(res!=FR_OK) //打开失败
|
||
{
|
||
i=0;
|
||
while((res!=FR_OK)&(i<100))
|
||
{
|
||
i++;
|
||
f_close(&fp);
|
||
f_mount(0,NULL);
|
||
f_mount(0,&fs);
|
||
res=f_open(&fp,name,FA_READ | FA_WRITE | FA_OPEN_ALWAYS );//0:/
|
||
}
|
||
if(i>98)return FR_NO_PATH ;
|
||
|
||
}
|
||
f_lseek (&fp,f_size(&fp));
|
||
f_write(&fp,data_common1.Pack_data,strlen(data_common1.Pack_data),&bws);
|
||
f_write(&fp,"\r\n",2,&bws);
|
||
f_close(&fp);
|
||
|
||
return FR_OK;
|
||
}
|
||
|
||
/*************文件删除*******************************/
|
||
FRESULT Fil_delete(char *names)
|
||
{
|
||
FRESULT result;
|
||
char namebuff[10]="\0";
|
||
sprintf(namebuff,"%s",names);
|
||
f_mount(0,&fs);
|
||
result = f_unlink(namebuff);
|
||
f_close(&fp);
|
||
f_mount(0,NULL);
|
||
return result;
|
||
}
|
||
//读取文件的大小byte
|
||
u32 txt_size_read(char *fname)
|
||
{
|
||
// u8 i=0;
|
||
FRESULT res;
|
||
u32 txt_size;
|
||
char name[20];
|
||
sprintf(name,"%s%s",fname,".txt");
|
||
res=f_mount(0,&fs);
|
||
res=f_open(&fp,"APP.bin",FA_READ);//0:/
|
||
if(res!=FR_OK) //打开失败
|
||
{
|
||
return FR_NO_FILE;
|
||
}
|
||
txt_size=f_size(&fp);
|
||
res=f_close(&fp);
|
||
f_mount(0,NULL);
|
||
return txt_size;
|
||
}
|
||
/*
|
||
功能：TF卡数据读取
|
||
参数：start_pos
|
||
len
|
||
返回值：暂时测试，用串口1打印 后续需要返回读取的数据
|
||
|
||
*/
|
||
void FATFS_Read_TF(char *fname,u32 start_pos,u32 len)
|
||
{
|
||
//u16 time1=0;
|
||
FRESULT res;
|
||
u32 tf_sendpos=0;
|
||
u8 times;
|
||
u32 i,lens_quotient,len_remainder;//商，余数
|
||
uint8_t Tf_Read_Buff[max_transmission+1];
|
||
lens_quotient=len/max_transmission;
|
||
len_remainder=len%max_transmission;
|
||
memset(Tf_Read_Buff,0,sizeof(Tf_Read_Buff));
|
||
res=f_mount(0,&fs);
|
||
res=f_open(&fp,fname,FA_READ);
|
||
times=0;
|
||
while((res!=FR_OK)&(times<100))
|
||
{
|
||
res=f_close(&fp);
|
||
res=f_mount(0,&fs);
|
||
res=f_open(&fp,fname,FA_READ);
|
||
times++;
|
||
if(times==100)return;
|
||
}
|
||
f_lseek(&fp, start_pos+tf_sendpos);
|
||
for(i=0;i<lens_quotient;i++)//发送大数据max_transmission字节
|
||
{
|
||
res=f_read(&fp,Tf_Read_Buff,max_transmission,&bws);
|
||
FLASH_WriteWord(APP_ADDR+(i*max_transmission),Tf_Read_Buff,max_transmission);
|
||
}
|
||
memset(Tf_Read_Buff,0,sizeof(Tf_Read_Buff));
|
||
f_read(&fp,Tf_Read_Buff,len_remainder,&bws);//发送余数字节
|
||
FLASH_WriteWord(APP_ADDR+(i*max_transmission),Tf_Read_Buff,len_remainder);
|
||
res=f_close(&fp);
|
||
f_mount(0,NULL);
|
||
|
||
}
|
||
|
||
u8 App_check(void)
|
||
{
|
||
uint8_t buff[10];
|
||
f_mount(0,&fs);
|
||
f_open(&fp,"AAP.bin",FA_READ);
|
||
f_read(&fp,buff,10,&bws);
|
||
if(((*(vu32*)(buff+4))&0xFF000000)==0x08000000)//判断是否为0X08XXXXXX.
|
||
{
|
||
return 0;
|
||
}
|
||
return 1;
|
||
}
|
||
|