Olivier Nastorg / Utils_dfu

avec dfu

Fork of Utils by POTLESS

Utils.cpp@5:0f3b6e6677ef, 2018-02-13 (annotated)

Committer:
POTLESS_2
Date:
Tue Feb 13 16:54:00 2018 +0000
Revision:
5:0f3b6e6677ef
Parent:
4:872676dd87a4
Child:
6:8bae97034114
reprise de la fonction file_exist

Who changed what in which revision?

UserRevisionLine numberNew contents of line
POTLESS_2 0:794c15bd30b0 1 #include "mbed.h"
POTLESS_2 0:794c15bd30b0 2 #include "Utils.h"
POTLESS_2 0:794c15bd30b0 3
POTLESS_2 0:794c15bd30b0 4 SDBlockDevice bd(SD_MOSI, SD_MISO, SD_SCK, SD_CS);
POTLESS_2 2:5af7a1fb1903 5 FATFileSystem Root("Root");
POTLESS_2 0:794c15bd30b0 6
POTLESS_2 3:01677db45b2a 7 int Exist_Val = 0;
POTLESS_2 3:01677db45b2a 8
POTLESS_2 0:794c15bd30b0 9 void return_error(int ret_val)
POTLESS_2 0:794c15bd30b0 10 {
POTLESS_2 4:872676dd87a4 11 Exist_Val = 0;
POTLESS_2 3:01677db45b2a 12 if (ret_val){
POTLESS_2 0:794c15bd30b0 13 printf(" Problème carte SD = %d\r\n", ret_val);
POTLESS_2 3:01677db45b2a 14 Exist_Val = 0;
POTLESS_2 3:01677db45b2a 15 }else{
POTLESS_2 0:794c15bd30b0 16 printf(" SD -> OK.\r\n");
POTLESS_2 3:01677db45b2a 17 Exist_Val = 1;
POTLESS_2 3:01677db45b2a 18 }
POTLESS_2 0:794c15bd30b0 19 }
POTLESS_2 0:794c15bd30b0 20
POTLESS_2 0:794c15bd30b0 21 void errno_error(void* ret_val)
POTLESS_2 0:794c15bd30b0 22 {
POTLESS_2 4:872676dd87a4 23 Exist_Val = 0;
POTLESS_2 3:01677db45b2a 24 if (ret_val == NULL){
POTLESS_2 0:794c15bd30b0 25 printf(" Problème carte SD = %d \r\n", errno);
POTLESS_2 3:01677db45b2a 26 Exist_Val = 0;
POTLESS_2 3:01677db45b2a 27 }else{
POTLESS_2 0:794c15bd30b0 28 printf(" SD -> OK.\r\n");
POTLESS_2 3:01677db45b2a 29 Exist_Val = 1;
POTLESS_2 3:01677db45b2a 30 }
POTLESS_2 0:794c15bd30b0 31 }
POTLESS_2 0:794c15bd30b0 32
POTLESS_2 0:794c15bd30b0 33 void UTILS::Store_A_Val(float Val_To_Store, char* File_Name)
POTLESS_2 0:794c15bd30b0 34 {
POTLESS_2 0:794c15bd30b0 35
POTLESS_2 0:794c15bd30b0 36 char filename[20];
POTLESS_2 2:5af7a1fb1903 37 sprintf(filename, "/Root/%s.txt", File_Name);
POTLESS_2 0:794c15bd30b0 38
POTLESS_2 0:794c15bd30b0 39 FILE* fd = fopen(filename, "w");
POTLESS_2 0:794c15bd30b0 40 errno_error(fd);
POTLESS_2 0:794c15bd30b0 41 fprintf(fd, "%f\r\n", Val_To_Store);
POTLESS_2 0:794c15bd30b0 42 fclose(fd);
POTLESS_2 0:794c15bd30b0 43
POTLESS_2 0:794c15bd30b0 44 printf(" \r\n %s sauvegardée = %f\r\n", filename, Val_To_Store);
POTLESS_2 0:794c15bd30b0 45
POTLESS_2 0:794c15bd30b0 46 }
POTLESS_2 0:794c15bd30b0 47
POTLESS_2 0:794c15bd30b0 48 float UTILS::Read_A_Val(char* File_Name)
POTLESS_2 0:794c15bd30b0 49 {
POTLESS_2 0:794c15bd30b0 50 char buffer[10] = {0};
POTLESS_2 0:794c15bd30b0 51 char c = {0};
POTLESS_2 0:794c15bd30b0 52 char *token;
POTLESS_2 0:794c15bd30b0 53 int i = 0;
POTLESS_2 0:794c15bd30b0 54
POTLESS_2 0:794c15bd30b0 55 char filename[20];
POTLESS_2 2:5af7a1fb1903 56 sprintf(filename, "/Root/%s.txt", File_Name);
POTLESS_2 0:794c15bd30b0 57
POTLESS_2 0:794c15bd30b0 58 printf(" \n Récupération de %s...\r\n", filename);
POTLESS_2 0:794c15bd30b0 59
POTLESS_2 0:794c15bd30b0 60 FILE* fd = fopen(filename, "r");
POTLESS_2 0:794c15bd30b0 61 errno_error(fd);
POTLESS_2 1:a937433a95c8 62
POTLESS_2 0:794c15bd30b0 63 while ((c != '\n') && (i < 10)) {
POTLESS_2 0:794c15bd30b0 64 c = fgetc(fd);
POTLESS_2 0:794c15bd30b0 65 buffer[i] = c;
POTLESS_2 0:794c15bd30b0 66 i++;
POTLESS_2 0:794c15bd30b0 67 }
POTLESS_2 0:794c15bd30b0 68
POTLESS_2 0:794c15bd30b0 69 token = strtok(buffer, "\n");
POTLESS_2 0:794c15bd30b0 70
POTLESS_2 0:794c15bd30b0 71 float val = atof(token);
POTLESS_2 0:794c15bd30b0 72
POTLESS_2 0:794c15bd30b0 73 printf(" Valeur Récupérée = %f\r\n", val);
POTLESS_2 0:794c15bd30b0 74
POTLESS_2 0:794c15bd30b0 75 fclose(fd);
POTLESS_2 0:794c15bd30b0 76
POTLESS_2 0:794c15bd30b0 77 return val;
POTLESS_2 0:794c15bd30b0 78 }
POTLESS_2 0:794c15bd30b0 79
POTLESS_2 0:794c15bd30b0 80
POTLESS_2 2:5af7a1fb1903 81 void UTILS::Write_SD_File(char* To_Store, char* File_Name)
POTLESS_2 0:794c15bd30b0 82 {
POTLESS_2 2:5af7a1fb1903 83 char filename[50];
POTLESS_2 2:5af7a1fb1903 84 sprintf(filename, "/Root/%s", (string)File_Name);
POTLESS_2 2:5af7a1fb1903 85
POTLESS_2 0:794c15bd30b0 86 FILE* fd = fopen(filename, "a");
POTLESS_2 2:5af7a1fb1903 87
POTLESS_2 0:794c15bd30b0 88 errno_error(fd);
POTLESS_2 0:794c15bd30b0 89 fprintf(fd, "%s\r\n", To_Store);
POTLESS_2 0:794c15bd30b0 90 fclose(fd);
POTLESS_2 0:794c15bd30b0 91
POTLESS_2 0:794c15bd30b0 92 //printf(" Sauvegarde OK\r\n\r\n");
POTLESS_2 0:794c15bd30b0 93 }
POTLESS_2 0:794c15bd30b0 94
POTLESS_2 2:5af7a1fb1903 95 void UTILS::Read_SD_File(char* File_Name)
POTLESS_2 0:794c15bd30b0 96 {
POTLESS_2 0:794c15bd30b0 97 char filename[20];
POTLESS_2 2:5af7a1fb1903 98 sprintf(filename, "/Root/%s", File_Name);
POTLESS_2 2:5af7a1fb1903 99
POTLESS_2 0:794c15bd30b0 100 FILE* fd = fopen(filename, "r");
POTLESS_2 0:794c15bd30b0 101 errno_error(fd);
POTLESS_2 0:794c15bd30b0 102
POTLESS_2 3:01677db45b2a 103 printf(" Contenu du fichier :\r\n\r\n");
POTLESS_2 0:794c15bd30b0 104 char buff[16] = {0};
POTLESS_2 0:794c15bd30b0 105 while (!feof(fd)) {
POTLESS_2 0:794c15bd30b0 106 int size = fread(&buff[0], 1, 15, fd);
POTLESS_2 0:794c15bd30b0 107 fwrite(&buff[0], 1, size, stdout);
POTLESS_2 0:794c15bd30b0 108 }
POTLESS_2 3:01677db45b2a 109 printf("\r\n Fin du fichier.\r\n");
POTLESS_2 0:794c15bd30b0 110 fclose(fd);
POTLESS_2 0:794c15bd30b0 111 }
POTLESS_2 0:794c15bd30b0 112
POTLESS_2 5:0f3b6e6677ef 113 bool UTILS::File_Exist(string File_Name)
POTLESS_2 3:01677db45b2a 114 {
POTLESS_2 3:01677db45b2a 115 char filename[20];
POTLESS_2 3:01677db45b2a 116 sprintf(filename, "/Root/%s.txt", File_Name);
POTLESS_2 3:01677db45b2a 117
POTLESS_2 3:01677db45b2a 118 FILE* fd = fopen(filename, "r");
POTLESS_2 3:01677db45b2a 119 errno_error(fd);
POTLESS_2 3:01677db45b2a 120
POTLESS_2 3:01677db45b2a 121 if (Exist_Val == 0){
POTLESS_2 4:872676dd87a4 122 printf(" Le fichier %s n'existe pas....\r\n", filename);
POTLESS_2 4:872676dd87a4 123 fclose(fd);
POTLESS_2 3:01677db45b2a 124 return false;
POTLESS_2 5:0f3b6e6677ef 125 }
POTLESS_2 5:0f3b6e6677ef 126
POTLESS_2 5:0f3b6e6677ef 127 if (Exist_Val == 1){
POTLESS_2 3:01677db45b2a 128 fclose(fd);
POTLESS_2 3:01677db45b2a 129 return true;
POTLESS_2 3:01677db45b2a 130 }
POTLESS_2 3:01677db45b2a 131 }
POTLESS_2 3:01677db45b2a 132
POTLESS_2 2:5af7a1fb1903 133 void UTILS::Delete_SD_File(char* File_Name)
POTLESS_2 0:794c15bd30b0 134 {
POTLESS_2 0:794c15bd30b0 135 char filename[20];
POTLESS_2 2:5af7a1fb1903 136 sprintf(filename, "/Root/%s", File_Name);
POTLESS_2 0:794c15bd30b0 137 int error = 0;
POTLESS_2 2:5af7a1fb1903 138 error = Root.remove(filename);
POTLESS_2 0:794c15bd30b0 139 return_error(error);
POTLESS_2 0:794c15bd30b0 140
POTLESS_2 0:794c15bd30b0 141 printf("Fichier effacé.\n");
POTLESS_2 0:794c15bd30b0 142 }
POTLESS_2 0:794c15bd30b0 143
POTLESS_2 4:872676dd87a4 144 void UTILS::Rename_SD_File(char* Old_File_Name, char* New_File_Name)
POTLESS_2 0:794c15bd30b0 145 {
POTLESS_2 0:794c15bd30b0 146 char Oldfilename[20];
POTLESS_2 2:5af7a1fb1903 147 sprintf(Oldfilename, "/Root/%s", Old_File_Name);
POTLESS_2 0:794c15bd30b0 148 char Newfilename[20];
POTLESS_2 2:5af7a1fb1903 149 sprintf(Newfilename, "/Root/%s", New_File_Name);
POTLESS_2 0:794c15bd30b0 150
POTLESS_2 0:794c15bd30b0 151 int error = 0;
POTLESS_2 2:5af7a1fb1903 152 error = Root.rename(Oldfilename, Newfilename);
POTLESS_2 0:794c15bd30b0 153 return_error(error);
POTLESS_2 0:794c15bd30b0 154
POTLESS_2 0:794c15bd30b0 155 printf("Fichier renommé.\n");
POTLESS_2 0:794c15bd30b0 156 }
POTLESS_2 0:794c15bd30b0 157
POTLESS_2 0:794c15bd30b0 158 void UTILS::Mount_SD()
POTLESS_2 0:794c15bd30b0 159 {
POTLESS_2 0:794c15bd30b0 160 //Montage carte SD
POTLESS_2 2:5af7a1fb1903 161 printf(" Montage carte SD \"/Root\". \r\n\r\n");
POTLESS_2 0:794c15bd30b0 162 int error = 0;
POTLESS_2 2:5af7a1fb1903 163 error = Root.mount(&bd);
POTLESS_2 0:794c15bd30b0 164 return_error(error);
POTLESS_2 1:a937433a95c8 165 if (error > 0) {
POTLESS_2 0:794c15bd30b0 166 //On re format s'il n'y a as de file system...normalement une seul fois...
POTLESS_2 0:794c15bd30b0 167 printf("Pas de File system, on format... ");
POTLESS_2 0:794c15bd30b0 168 Format_SD();
POTLESS_2 0:794c15bd30b0 169 }
POTLESS_2 0:794c15bd30b0 170 }
POTLESS_2 0:794c15bd30b0 171
POTLESS_2 0:794c15bd30b0 172 void UTILS::UnMount_SD()
POTLESS_2 0:794c15bd30b0 173 {
POTLESS_2 0:794c15bd30b0 174 //Montage carte SD
POTLESS_2 2:5af7a1fb1903 175 printf(" Demontage carte SD \"/Root\". \r\n\r\n");
POTLESS_2 0:794c15bd30b0 176 int error = 0;
POTLESS_2 2:5af7a1fb1903 177 error = Root.unmount();
POTLESS_2 0:794c15bd30b0 178 return_error(error);
POTLESS_2 0:794c15bd30b0 179 }
POTLESS_2 0:794c15bd30b0 180
POTLESS_2 0:794c15bd30b0 181 void UTILS::Format_SD()
POTLESS_2 0:794c15bd30b0 182 {
POTLESS_2 0:794c15bd30b0 183 //Formatage carte SD
POTLESS_2 0:794c15bd30b0 184 printf(" Formatage carte SD\r\n\r\n");
POTLESS_2 0:794c15bd30b0 185 int error = 0;
POTLESS_2 4:872676dd87a4 186 error = FATFileSystem::format(&bd);
POTLESS_2 2:5af7a1fb1903 187 return_error(error);
POTLESS_2 2:5af7a1fb1903 188 }
POTLESS_2 2:5af7a1fb1903 189
POTLESS_2 3:01677db45b2a 190 void UTILS::Dir_SD(char* Dir_Name)
POTLESS_2 2:5af7a1fb1903 191 {
POTLESS_2 2:5af7a1fb1903 192 int error = 0;
POTLESS_2 3:01677db45b2a 193 int nb = 0;
POTLESS_2 3:01677db45b2a 194 printf("\r\n Ouverture du répertoire %s\r\n", Dir_Name);
POTLESS_2 2:5af7a1fb1903 195 char Dirname[20];
POTLESS_2 2:5af7a1fb1903 196 sprintf(Dirname, "/Root/%s", Dir_Name);
POTLESS_2 2:5af7a1fb1903 197
POTLESS_2 2:5af7a1fb1903 198 DIR* dir = opendir(Dirname);
POTLESS_2 2:5af7a1fb1903 199 //errno_error(fd);
POTLESS_2 2:5af7a1fb1903 200
POTLESS_2 2:5af7a1fb1903 201 struct dirent* de;
POTLESS_2 3:01677db45b2a 202 printf(" Fichier du répertoire :\r\n\r\n");
POTLESS_2 2:5af7a1fb1903 203 while((de = readdir(dir)) != NULL)
POTLESS_2 2:5af7a1fb1903 204 {
POTLESS_2 2:5af7a1fb1903 205 printf(" %s\r\n", &(de->d_name)[0]);
POTLESS_2 3:01677db45b2a 206 nb++;
POTLESS_2 2:5af7a1fb1903 207 //wait_ms(100);
POTLESS_2 2:5af7a1fb1903 208 }
POTLESS_2 3:01677db45b2a 209 printf("\r\n Nombre de fichiers = %d\r\n", nb);
POTLESS_2 3:01677db45b2a 210 printf(" Fermeture du répertoire.\r\n");
POTLESS_2 4:872676dd87a4 211 //error = closedir(dir);
POTLESS_2 0:794c15bd30b0 212 return_error(error);
POTLESS_2 0:794c15bd30b0 213 }
POTLESS_2 0:794c15bd30b0 214
POTLESS_2 3:01677db45b2a 215 int UTILS::File_Index()
POTLESS_2 3:01677db45b2a 216 {
POTLESS_2 3:01677db45b2a 217 int error = 0;
POTLESS_2 3:01677db45b2a 218 int nb = 0;
POTLESS_2 3:01677db45b2a 219
POTLESS_2 3:01677db45b2a 220 DIR* dir = opendir("/Root/");
POTLESS_2 3:01677db45b2a 221 struct dirent* de;
POTLESS_2 3:01677db45b2a 222 while((de = readdir(dir)) != NULL)
POTLESS_2 3:01677db45b2a 223 {
POTLESS_2 3:01677db45b2a 224 nb++;
POTLESS_2 3:01677db45b2a 225 }
POTLESS_2 3:01677db45b2a 226 error = closedir(dir);
POTLESS_2 3:01677db45b2a 227 return_error(error);
POTLESS_2 3:01677db45b2a 228
POTLESS_2 3:01677db45b2a 229 return nb - 2;
POTLESS_2 3:01677db45b2a 230 }
POTLESS_2 3:01677db45b2a 231
POTLESS_2 0:794c15bd30b0 232 //Remapping d'une valeur dans une autre échelle
POTLESS_2 0:794c15bd30b0 233 float UTILS::Remap(float x, float in_min, float in_max, float out_min, float out_max)
POTLESS_2 0:794c15bd30b0 234 {
POTLESS_2 0:794c15bd30b0 235 return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
POTLESS_2 0:794c15bd30b0 236 }
POTLESS_2 0:794c15bd30b0 237
POTLESS_2 0:794c15bd30b0 238 //Contraint une valeur entre deux limites
POTLESS_2 0:794c15bd30b0 239 float UTILS::constrain(float x, float a, float b)
POTLESS_2 0:794c15bd30b0 240 {
POTLESS_2 0:794c15bd30b0 241 if(x < a) {
POTLESS_2 0:794c15bd30b0 242 return a;
POTLESS_2 0:794c15bd30b0 243 } else if(b < x) {
POTLESS_2 0:794c15bd30b0 244 return b;
POTLESS_2 0:794c15bd30b0 245 } else
POTLESS_2 0:794c15bd30b0 246 return x;
POTLESS_2 0:794c15bd30b0 247 }