files.cpp

00001 #include "files.h"
00002 
00003 #if (MBED_MAJOR_VERSION == 2)
00004     #include    "SDFileSystem.h"
00005 #elif (MBED_MAJOR_VERSION == 5)
00006     #include    "SDBlockDevice.h"
00007     #include    "FATFileSystem.h"
00008 #endif
00009 
00010 #if (MBED_MAJOR_VERSION == 2)
00011     SDFileSystem    sd(D11, D12, D13, D10, "fs");  // do,di,clk,cs
00012 #elif (MBED_MAJOR_VERSION == 5)
00013     //SDBlockDevice   sd(D11, D12, D13, D10, 8000000);
00014     SDBlockDevice   sd(SPI0_MOSI, SPI0_MISO, SPI0_SCK, SPI0_SS, 8000000);    // For MAX32630FTHR 
00015     FATFileSystem   fs("fs");
00016 #endif
00017 
00018 
00019 int totaFunctionlFiles = 0;
00020 int functionFileNumber = 1;
00021 int functionActive = 0;
00022 extern int functionPosition = 0;
00023 Function ffunc;
00024 
00025 int initSDCard(){
00026 #if (MBED_MAJOR_VERSION == 5)
00027     /* Init SD CARD reader */
00028     sd.init();
00029     fs.mount(&sd);
00030 #endif
00031     FILE* fp = fopen("/fs/mydata.txt", "a");
00032     if (fp != 0) {
00033         pc.printf("writing something\n\r\n");
00034         fprintf(fp,"writing something\n\r\n");
00035     } else {
00036         pc.printf("ERROR\r\n");
00037     }
00038     fclose(fp);
00039     return 0;
00040 }
00041 
00042 int readFileNames(){
00043     DIR *d;
00044     struct dirent *p;
00045 
00046     d = opendir("/fs/functions");
00047     if (d != NULL) {
00048         while ((p = readdir(d)) != NULL) {
00049 //            printf(" - %s\n", p->d_name);
00050             totaFunctionlFiles++;
00051         }
00052     } else {
00053         printf("Could not open directory!\n");
00054     }
00055     closedir(d);
00056     printf("Total files = %d\n", totaFunctionlFiles);
00057     return 0;
00058 }
00059 
00060 int navFunctionFiles(int direction){
00061 
00062     if(direction == DIR_UP){
00063         if(functionFileNumber < totaFunctionlFiles){
00064             functionFileNumber++;
00065         }else{
00066             functionFileNumber = 1;
00067         }
00068         printf("UP: %d\n", functionFileNumber);
00069     }else{
00070         if(functionFileNumber > 1){
00071             functionFileNumber--;
00072         }else{
00073             functionFileNumber = totaFunctionlFiles;
00074         }
00075         printf("DOWN: %d\n", functionFileNumber);
00076     }
00077     return 0;
00078 }
00079 
00080 int openFunctionFile(int inpFile){
00081     char fileLoc [40];
00082     sprintf (fileLoc, "/fs/functions/function%d.txt", inpFile);
00083     printf ("[%s] is location %d file number\n", fileLoc, inpFile);
00084 
00085     FILE* fp = fopen(fileLoc, "r");    
00086     ffunc.pos=0;
00087     while (fscanf(fp, "%d,%d", &ffunc.x[ffunc.pos], &ffunc.t[ffunc.pos]) != EOF){
00088         ffunc.pos++;
00089     }
00090 
00091     fclose(fp);
00092     functionActive = 1;
00093     functionPosition = 0;
00094     printFunctionData();
00095     return 0;
00096 }
00097 
00098 void printFunctionData(){
00099     printf ("total: %d\n", ffunc.pos);    
00100     for(int i=0; i<ffunc.pos; i++ ){
00101         printf ("%d, %d\n", ffunc.x[i], ffunc.t[i]);
00102     }
00103 }
00104