TestFileSystemMCI.cpp

00001 /*
00002  *  Copyright 2013 Embedded Artists AB
00003  *
00004  *  Licensed under the Apache License, Version 2.0 (the "License");
00005  *  you may not use this file except in compliance with the License.
00006  *  You may obtain a copy of the License at
00007  *
00008  *    http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  *  Unless required by applicable law or agreed to in writing, software
00011  *  distributed under the License is distributed on an "AS IS" BASIS,
00012  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  *  See the License for the specific language governing permissions and
00014  *  limitations under the License.
00015  */
00016 
00017 /******************************************************************************
00018  * Includes
00019  *****************************************************************************/
00020 
00021 #include "mbed.h"
00022 #include "TestFileSystemMCI.h"
00023 #include "MCIFileSystem.h"
00024 
00025 /******************************************************************************
00026  * Defines and typedefs
00027  *****************************************************************************/
00028 
00029 
00030 /******************************************************************************
00031  * Public Functions
00032  *****************************************************************************/
00033 
00034 /*
00035    Prerequisites:
00036  
00037    - For this test to work jumpers JP1..JP6 on the LPC4088 Experiment Base Board
00038      must all be in positions 1-2, that is closest to the center of the board.
00039  
00040    - The uSD card must be formatted as FAT or FAT32, NTFS will not work.
00041  
00042    - This test expects a file with the name message.txt to exist in the
00043      root folder on the uSD card. The file must be at least 10 bytes in
00044      size and the first bytes must be eatest2014
00045 */
00046 
00047 bool TestFileSystemMCI::runTest() {
00048     printf("Testing MCI file system. If this test takes a lot of time make sure that\n"
00049            "there is a uSD card inserted and that the jumpers are inserted according\n"
00050            "to the instructions!\n");
00051     
00052     // The LPC4088 Experiment Base Board does not have the CardDetect signal
00053     // available so it must be set to NC here to work.
00054     MCIFileSystem mcifs("mci", NC);
00055 
00056     FILE* fp = fopen("/mci/message.txt", "r");
00057     if (fp != NULL) {
00058         char buf[20];
00059         int num = fread(buf, 1, sizeof(buf), fp);
00060         if (num >= 10) {
00061             buf[10] = '\0';
00062             if (strcmp(buf, "eatest2014") == 0) {
00063                 printf("MCI SD Card works!\n");
00064                 fclose(fp);
00065                 return true;
00066             }
00067             printf("Invalid data read from /mci/message.txt\n");
00068         }
00069         printf("Failed to read >= 10 bytes from /mci/message.txt\n");
00070     }
00071     printf("Failed to open /mci/message.txt\n");
00072     return false;
00073 }
00074 
00075