主程序代码如下:
#include "ZNFAT.H"
#include "sd.h"
#include "uart.h"
#include "vs1003.h"
struct znFAT_Init_Args idata Init_Args; // 初始化参数集合
struct FileInfo idata fileinfo; // 文件信息集合
void port_mode() // 端口模式
{
P0M1=0xff; P0M0=0xff;P1M1=0x0C;P1M0=0x0C;P4M1=0x80;P4M0=0x80;
}
int main()
{
unsigned int res=0,n=0;
port_mode(); // 所有IO口设为准双向弱上拉方式。
UART_Init(); // 波特率:9600 /22.1184MHZ
UART_Send_Str("串口设置完毕\r\n");
znFAT_Device_Init(); // 存储设备初始化
UART_Send_Str("SD卡初始化完毕\r\n");
znFAT_Select_Device(0,&Init_Args); // 选择设备
res=znFAT_Init(); // 文件系统初始化
if(!res) // 文件系统初始化成功
{
UART_Send_Str("文件系统初始化成功\r\n");
UART_Send_StrNum("DBR扇区地址:",Init_Args.BPB_Sector_No);
UART_Send_StrNum("总存储容量(K字节):",Init_Args.Total_SizeKB);
UART_Send_StrNum("每扇区字节(个):",Init_Args.BytesPerSector);
UART_Send_StrNum("FAT扇区数:",Init_Args.FATsectors);
UART_Send_StrNum("每簇扇区(个):",Init_Args.SectorsPerClust);
UART_Send_StrNum("第一FAT扇区:",Init_Args.FirstFATSector);
UART_Send_StrNum("根目录开始扇区:",Init_Args.FirstDirSector);
UART_Send_StrNum("FSINFO扇区地址:",Init_Args.FSINFO_Sec);
UART_Send_StrNum("下一空闲簇:",Init_Args.Next_Free_Cluster);
UART_Send_StrNum("剩余空闲簇:",Init_Args.Free_nCluster);
}
else // 文件系统初始化失败
{
UART_Send_StrNum("文件系统初始化失败 , 错误码:",res);
}
VS_Reset(); // VS1003复位初始化
while(!znFAT_Open_File(&fileinfo,"/*.mp3",n,1)) //打开SD卡根目录下所有MP3文件中的第n个
{
UART_Send_Str("===========================================================\n");
UART_Send_Str("打开文件成功\n"); // 从串口输出文件参数信息
UART_Send_Str("文件名为:");
UART_Send_Str(fileinfo.File_Name);
UART_Send_Enter();
UART_Send_StrNum("文件大小(字节):",fileinfo.File_Size);
UART_Send_StrNum("文件当前偏移量(字节):",fileinfo.File_CurOffset);
UART_Send_Str("文件创建时间:\n");
UART_Send_Num(fileinfo.File_CDate.year); UART_Send_Str("年");
UART_Send_Num(fileinfo.File_CDate.month);UART_Send_Str("月");
UART_Send_Num(fileinfo.File_CDate.day); UART_Send_Str("日");
UART_Send_Num(fileinfo.File_CTime.hour); UART_Send_Str("时");
UART_Send_Num(fileinfo.File_CTime.min); UART_Send_Str("分");
UART_Send_Num(fileinfo.File_CTime.sec); UART_Send_Str("秒\r\n");
UART_Send_Enter();
VS_sin_test(200); // 正弦测试,可以听到一声滴
znFAT_ReadDataX(&fileinfo,0,fileinfo.File_Size); //调用读取文件函数(重定向),将数据送至VS1003
VS_Reset();
n++;
}
UART_Send_Str("===========================================================\n");
UART_Send_StrNum("文件列举完毕,共有文件(个):",n);
while(1);
return 0;
} |