file_ex1.c

keil arm flash fs 最新版 在Ｋｅｉｌ ａｒｍ下使用

/*----------------------------------------------------------------------------
 *      R T L   F l a s h   F i l e   S y s t e m   E x a m p l e
 *----------------------------------------------------------------------------
 *      Name:    FILE_EX1.C
 *      Purpose: File manipulation example program
 *      Rev.:    V3.22
 *----------------------------------------------------------------------------
 *      This code is part of the RealView Run-Time Library.
 *      Copyright (c) 2004-2008 KEIL - An ARM Company. All rights reserved.
 *---------------------------------------------------------------------------*/

#include <LPC22xx.h>                  /* special function registers LPC2294  */
#include <RTL.h>                      /* RTL kernel functions & defines      */
#include <stdio.h>                    /* standard I/O .h-file                */
#include <ctype.h>                    /* character functions                 */
#include <string.h>                   /* string and memory functions         */

extern void init_serial (void);

const char menu[] = 
   "\n"
   "+******** FILE manipulation example using RTL FlashFS *********+\n"
   "| This program is a file save, read, rename, delete program.   |\n"
   "| You need to specify the filename before any file operation.  |\n"
   "+ command -+ syntax -----+ function ---------------------------+\n"
   "| Name     | N <name>    | set file name                       |\n"
   "| Capture  | C           | capture serial data to file         |\n"
   "| Append   | A           | append serial data to file          |\n"
   "| Read     | R           | read file                           |\n"
   "| rEname   | E <new name>| rename file to new name             |\n"
   "| Delete   | D           | delete file                         |\n"
   "| List     | L           | list file directory                 |\n"
   "+----------+-------------+-------------------------------------+\n";


extern BOOL getline (char *, U32);    /* external function:  input line      */

char in_line[80];                     /* storage for command input line      */
char filename[32] = {"CAPTURE.TXT" }; /* current file name                   */

/*----------------------------------------------------------------------------
 *        Skip 'spacer' characters
 *---------------------------------------------------------------------------*/
char * skip_blanks (char *sp) {
   while (*sp == ' ') {
      sp++;
   }
   return (sp);
}

/*----------------------------------------------------------------------------
 *        Convert string to upper case
 *---------------------------------------------------------------------------*/
void to_upper (char *sp) {
   while ((*sp = (char)toupper (*sp)) != 0) {
      sp++;
   }
}

/*----------------------------------------------------------------------------
 *        Capture serial data to file
 *---------------------------------------------------------------------------*/
void capture_file (char mode) {
   FILE *f;
   char *fmode;
   BOOL retv;

   if (mode == 'C') {                 /* Capture file                        */
      printf("\nCapture data to file: %s",filename);
      fmode = "w";
   }
   else {                             /* Append file                         */
      printf("\nAppend data to file: %s",filename);
      fmode = "a";
   }
   printf("\nPress ESC to stop.\n");
   f = fopen (filename,fmode);        /* open a file for writing             */
   if (f == NULL) {
      printf ("\nCan not open file!\n");/* error when trying to open file    */
      return;
   } 
                                      /* read line-edited serial input       */
   do {
      retv = getline (in_line, sizeof (in_line));
      fputs (in_line, f);
   } while (retv == __TRUE);
   fclose (f);                        /* close the output file               */
   printf ("\nFile closed.\n");
}

/*----------------------------------------------------------------------------
 *        Read file and dump it to serial window
 *---------------------------------------------------------------------------*/
void read_file () {
   FILE *f;
   int ch;

   printf("\nRead data from file: %s\n",filename);
   f = fopen (filename,"r");          /* open the file for reading           */
   if (f == NULL) {                   /* error when opening the file         */
      printf ("\nFile not found!\n"); /* most likely file was not found      */
      return;
   }
  
   while ((ch = fgetc (f)) != EOF) {  /* read the characters from the file   */
      putchar (ch);                   /* and write them on the screen        */
   }
   fclose (f);                        /* close the input file when done      */
   printf ("\nFile closed.\n");
}


/*----------------------------------------------------------------------------
 *        Main: 
 *---------------------------------------------------------------------------*/
int main (void) {
   char temp[32], *sp;
   FINFO info;
   U32 args;

   init_serial ();
   fformat ("");

   printf (menu);                             /* display command menu        */
   while (1) {                                /* endless loop                */
      printf ("\nCommand: ");                 /* display prompt              */
      fflush (stdout);
                                              /* get command line input      */
      if (getline (in_line, sizeof (in_line)) == __FALSE) {
         continue;
      }
      sp = &in_line[0];
      to_upper (sp);                          /* convert to uppercase        */
      sp = skip_blanks (sp);                  /* skip blanks                 */

      switch (*sp) {                          /* proceed to command function */
         case 'N':                            /* change filename command     */
            sp = skip_blanks (sp+1);
            args = sscanf (sp, "%s", (S8 *)&temp);/* scan input line for name*/
            if (args == 1) {                  /* check if new name entered   */
               strcpy (filename, temp);
            }
            printf ("\nFile Name: %s\n", filename);
            break;

         case 'C':                            /* capture file command        */
         case 'A':                            /* append file command         */
            capture_file (*sp);
            printf (menu);
            break;

         case 'R':                            /* read the 'filename' file    */
            read_file ();
            printf (menu);
            break;

         case 'E':                            /* rename the file command     */
            sp = skip_blanks (sp+1);
            args = sscanf (sp, "%s", (S8 *)&temp);/* scan input line for name*/
            if (args == 1) {                  /* check if new name entered   */
               if (frename (filename, temp) == 0) {
                  printf ("\nFile successfully renamed.\n");  
                  strcpy (filename, temp);    /* set also the filename       */
                  printf ("\nFile Name: %s\n", filename);
               }
               else {
                  printf ("\nFile rename error.\n");
               }
            }
            printf (menu);
            break;

         case 'D':                            /* delete the file command     */
            if (fdelete (filename) == 0) {
               printf ("\nFile successfully deleted.\n");
            }
            else {
               printf ("\nFile not found error.\n");
            }
            printf (menu);
            break;

         case 'L':                            /* list file directory command */
            printf ("\nFile System Directory...");
            info.fileID = 0;
            while (ffind ("*.*",&info) == 0) {
               printf ("\n%-32s %5ld bytes, ID: %04d",info.name, info.size, info.fileID);
            }
            if (info.fileID == 0) {
               printf ("\nNo files...");
            }
            printf ("\nFree: %ld bytes.\n",ffree(""));
            break;

         default:                             /* Error Handling              */
            printf (menu);                    /* display command menu        */
            break;
      }
   }
}


/*----------------------------------------------------------------------------
 * end of file
 *---------------------------------------------------------------------------*/