Nuvoton
/
NuMaker-mbed-SD-FileSystem-example
NuMaker SD-File-System with SD mode
main.cpp@31:a31df25bd1e5, 18 months ago (annotated)
- Committer:
- ccli8
- Date:
- Wed Mar 29 11:56:02 2023 +0800
- Revision:
- 31:a31df25bd1e5
- Parent:
- 27:48b42429011a
Support CMake build
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ccli8 |
21:dfd65207a645 | 1 | /* mbed Microcontroller Library |
ccli8 |
21:dfd65207a645 | 2 | * Copyright (c) 2006-2019 ARM Limited |
ccli8 |
21:dfd65207a645 | 3 | * |
ccli8 |
21:dfd65207a645 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
ccli8 |
21:dfd65207a645 | 5 | * you may not use this file except in compliance with the License. |
ccli8 |
21:dfd65207a645 | 6 | * You may obtain a copy of the License at |
ccli8 |
21:dfd65207a645 | 7 | * |
ccli8 |
21:dfd65207a645 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
ccli8 |
21:dfd65207a645 | 9 | * |
ccli8 |
21:dfd65207a645 | 10 | * Unless required by applicable law or agreed to in writing, software |
ccli8 |
21:dfd65207a645 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
ccli8 |
21:dfd65207a645 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
ccli8 |
21:dfd65207a645 | 13 | * See the License for the specific language governing permissions and |
ccli8 |
21:dfd65207a645 | 14 | * limitations under the License. |
ccli8 |
21:dfd65207a645 | 15 | */ |
ccli8 |
21:dfd65207a645 | 16 | #include "mbed.h" |
ccli8 |
21:dfd65207a645 | 17 | #include <stdio.h> |
ccli8 |
21:dfd65207a645 | 18 | #include <errno.h> |
ccli8 |
21:dfd65207a645 | 19 | |
ccli8 |
21:dfd65207a645 | 20 | #include "NuSDBlockDevice.h" |
ccli8 |
27:48b42429011a | 21 | #include "FlashSimBlockDevice.h" |
ccli8 |
21:dfd65207a645 | 22 | |
shliu1 |
25:1d348ccfc209 | 23 | |
ccli8 |
21:dfd65207a645 | 24 | // Maximum number of elements in buffer |
ccli8 |
21:dfd65207a645 | 25 | #define BUFFER_MAX_LEN 10 |
ccli8 |
21:dfd65207a645 | 26 | |
ccli8 |
21:dfd65207a645 | 27 | // NUSD for block device |
ccli8 |
27:48b42429011a | 28 | NuSDBlockDevice *bd_ = new NuSDBlockDevice(); |
ccli8 |
27:48b42429011a | 29 | // Add flash-simulate layer on top of NUSD not implementing "erase" characteristic |
ccli8 |
27:48b42429011a | 30 | FlashSimBlockDevice *bd = new FlashSimBlockDevice(bd_); |
ccli8 |
21:dfd65207a645 | 31 | |
ccli8 |
21:dfd65207a645 | 32 | // Instead of the default block device, you can define your own block device. |
ccli8 |
21:dfd65207a645 | 33 | // For example: HeapBlockDevice with size of 2048 bytes, read size 1, write size 1 and erase size 512. |
ccli8 |
21:dfd65207a645 | 34 | // #include "HeapBlockDevice.h" |
ccli8 |
21:dfd65207a645 | 35 | // BlockDevice *bd = new HeapBlockDevice(2048, 1, 1, 512); |
ccli8 |
21:dfd65207a645 | 36 | |
ccli8 |
21:dfd65207a645 | 37 | |
ccli8 |
23:036c20fd7064 | 38 | // This example uses FAT file system as the default. |
ccli8 |
23:036c20fd7064 | 39 | #include "FATFileSystem.h" |
ccli8 |
23:036c20fd7064 | 40 | FATFileSystem fs("fs"); |
ccli8 |
21:dfd65207a645 | 41 | |
ccli8 |
23:036c20fd7064 | 42 | // Uncomment in the following two lines and comment out the previous two to use Little file system. |
ccli8 |
23:036c20fd7064 | 43 | //#include "LittleFileSystem.h" |
ccli8 |
23:036c20fd7064 | 44 | //LittleFileSystem fs("fs"); |
ccli8 |
21:dfd65207a645 | 45 | |
ccli8 |
21:dfd65207a645 | 46 | |
ccli8 |
21:dfd65207a645 | 47 | // Set up the button to trigger an erase |
ccli8 |
21:dfd65207a645 | 48 | InterruptIn irq(BUTTON1); |
shliu1 |
25:1d348ccfc209 | 49 | |
ccli8 |
21:dfd65207a645 | 50 | void erase() { |
ccli8 |
21:dfd65207a645 | 51 | printf("Initializing the block device... "); |
ccli8 |
21:dfd65207a645 | 52 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 53 | int err = bd->init(); |
ccli8 |
21:dfd65207a645 | 54 | printf("%s\n", (err ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 55 | if (err) { |
ccli8 |
21:dfd65207a645 | 56 | error("error: %s (%d)\n", strerror(-err), err); |
ccli8 |
21:dfd65207a645 | 57 | } |
ccli8 |
21:dfd65207a645 | 58 | |
ccli8 |
21:dfd65207a645 | 59 | printf("Erasing the block device... "); |
ccli8 |
21:dfd65207a645 | 60 | fflush(stdout); |
ccli8 |
27:48b42429011a | 61 | // Whole erase takes too long for SD/NUSD. Just erase the front so that |
ccli8 |
27:48b42429011a | 62 | // it will recognize as invalid file system format. |
ccli8 |
27:48b42429011a | 63 | //err = bd->erase(0, bd->size()); |
ccli8 |
27:48b42429011a | 64 | err = bd->erase(0, 1024*64); |
ccli8 |
21:dfd65207a645 | 65 | printf("%s\n", (err ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 66 | if (err) { |
ccli8 |
21:dfd65207a645 | 67 | error("error: %s (%d)\n", strerror(-err), err); |
ccli8 |
21:dfd65207a645 | 68 | } |
ccli8 |
21:dfd65207a645 | 69 | |
ccli8 |
21:dfd65207a645 | 70 | printf("Deinitializing the block device... "); |
ccli8 |
21:dfd65207a645 | 71 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 72 | err = bd->deinit(); |
ccli8 |
21:dfd65207a645 | 73 | printf("%s\n", (err ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 74 | if (err) { |
ccli8 |
21:dfd65207a645 | 75 | error("error: %s (%d)\n", strerror(-err), err); |
ccli8 |
21:dfd65207a645 | 76 | } |
ccli8 |
21:dfd65207a645 | 77 | } |
ccli8 |
21:dfd65207a645 | 78 | |
shliu1 |
25:1d348ccfc209 | 79 | #if MBED_MAJOR_VERSION >= 6 |
shliu1 |
25:1d348ccfc209 | 80 | static auto erase_event = mbed_event_queue()->make_user_allocated_event(erase); |
shliu1 |
25:1d348ccfc209 | 81 | #endif |
ccli8 |
21:dfd65207a645 | 82 | |
ccli8 |
21:dfd65207a645 | 83 | // Entry point for the example |
ccli8 |
21:dfd65207a645 | 84 | int main() { |
shliu1 |
25:1d348ccfc209 | 85 | #ifdef MBED_MAJOR_VERSION |
shliu1 |
25:1d348ccfc209 | 86 | printf("Mbed OS version %d.%d.%d\r\n\n", MBED_MAJOR_VERSION, MBED_MINOR_VERSION, MBED_PATCH_VERSION); |
shliu1 |
25:1d348ccfc209 | 87 | #endif |
ccli8 |
21:dfd65207a645 | 88 | printf("--- Mbed OS filesystem example ---\n"); |
ccli8 |
21:dfd65207a645 | 89 | |
ccli8 |
21:dfd65207a645 | 90 | // Setup the erase event on button press, use the event queue |
ccli8 |
21:dfd65207a645 | 91 | // to avoid running in interrupt context |
shliu1 |
25:1d348ccfc209 | 92 | #if MBED_MAJOR_VERSION >= 6 |
shliu1 |
25:1d348ccfc209 | 93 | irq.fall(std::ref(erase_event)); |
shliu1 |
25:1d348ccfc209 | 94 | #else |
ccli8 |
21:dfd65207a645 | 95 | irq.fall(mbed_event_queue()->event(erase)); |
shliu1 |
25:1d348ccfc209 | 96 | #endif |
ccli8 |
21:dfd65207a645 | 97 | |
ccli8 |
21:dfd65207a645 | 98 | // Try to mount the filesystem |
ccli8 |
21:dfd65207a645 | 99 | printf("Mounting the filesystem... "); |
ccli8 |
21:dfd65207a645 | 100 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 101 | int err = fs.mount(bd); |
ccli8 |
21:dfd65207a645 | 102 | printf("%s\n", (err ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 103 | if (err) { |
ccli8 |
21:dfd65207a645 | 104 | // Reformat if we can't mount the filesystem |
ccli8 |
21:dfd65207a645 | 105 | // this should only happen on the first boot |
ccli8 |
21:dfd65207a645 | 106 | printf("No filesystem found, formatting... "); |
ccli8 |
21:dfd65207a645 | 107 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 108 | err = fs.reformat(bd); |
ccli8 |
21:dfd65207a645 | 109 | printf("%s\n", (err ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 110 | if (err) { |
ccli8 |
21:dfd65207a645 | 111 | error("error: %s (%d)\n", strerror(-err), err); |
ccli8 |
21:dfd65207a645 | 112 | } |
ccli8 |
21:dfd65207a645 | 113 | } |
ccli8 |
21:dfd65207a645 | 114 | |
ccli8 |
21:dfd65207a645 | 115 | // Open the numbers file |
ccli8 |
21:dfd65207a645 | 116 | printf("Opening \"/fs/numbers.txt\"... "); |
ccli8 |
21:dfd65207a645 | 117 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 118 | FILE *f = fopen("/fs/numbers.txt", "r+"); |
ccli8 |
21:dfd65207a645 | 119 | printf("%s\n", (!f ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 120 | if (!f) { |
ccli8 |
21:dfd65207a645 | 121 | // Create the numbers file if it doesn't exist |
ccli8 |
21:dfd65207a645 | 122 | printf("No file found, creating a new file... "); |
ccli8 |
21:dfd65207a645 | 123 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 124 | f = fopen("/fs/numbers.txt", "w+"); |
ccli8 |
21:dfd65207a645 | 125 | printf("%s\n", (!f ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 126 | if (!f) { |
ccli8 |
21:dfd65207a645 | 127 | error("error: %s (%d)\n", strerror(errno), -errno); |
ccli8 |
21:dfd65207a645 | 128 | } |
ccli8 |
21:dfd65207a645 | 129 | |
ccli8 |
21:dfd65207a645 | 130 | for (int i = 0; i < 10; i++) { |
ccli8 |
21:dfd65207a645 | 131 | printf("\rWriting numbers (%d/%d)... ", i, 10); |
ccli8 |
21:dfd65207a645 | 132 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 133 | err = fprintf(f, " %d\n", i); |
ccli8 |
21:dfd65207a645 | 134 | if (err < 0) { |
ccli8 |
21:dfd65207a645 | 135 | printf("Fail :(\n"); |
ccli8 |
21:dfd65207a645 | 136 | error("error: %s (%d)\n", strerror(errno), -errno); |
ccli8 |
21:dfd65207a645 | 137 | } |
ccli8 |
21:dfd65207a645 | 138 | } |
ccli8 |
21:dfd65207a645 | 139 | printf("\rWriting numbers (%d/%d)... OK\n", 10, 10); |
ccli8 |
21:dfd65207a645 | 140 | |
ccli8 |
21:dfd65207a645 | 141 | printf("Seeking file... "); |
ccli8 |
21:dfd65207a645 | 142 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 143 | err = fseek(f, 0, SEEK_SET); |
ccli8 |
21:dfd65207a645 | 144 | printf("%s\n", (err < 0 ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 145 | if (err < 0) { |
ccli8 |
21:dfd65207a645 | 146 | error("error: %s (%d)\n", strerror(errno), -errno); |
ccli8 |
21:dfd65207a645 | 147 | } |
ccli8 |
21:dfd65207a645 | 148 | } |
ccli8 |
21:dfd65207a645 | 149 | |
ccli8 |
21:dfd65207a645 | 150 | // Go through and increment the numbers |
ccli8 |
21:dfd65207a645 | 151 | for (int i = 0; i < 10; i++) { |
ccli8 |
21:dfd65207a645 | 152 | printf("\rIncrementing numbers (%d/%d)... ", i, 10); |
ccli8 |
21:dfd65207a645 | 153 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 154 | |
ccli8 |
21:dfd65207a645 | 155 | // Get current stream position |
ccli8 |
21:dfd65207a645 | 156 | long pos = ftell(f); |
ccli8 |
21:dfd65207a645 | 157 | |
ccli8 |
21:dfd65207a645 | 158 | // Parse out the number and increment |
ccli8 |
21:dfd65207a645 | 159 | char buf[BUFFER_MAX_LEN]; |
ccli8 |
21:dfd65207a645 | 160 | if (!fgets(buf, BUFFER_MAX_LEN, f)) { |
ccli8 |
21:dfd65207a645 | 161 | error("error: %s (%d)\n", strerror(errno), -errno); |
ccli8 |
21:dfd65207a645 | 162 | } |
ccli8 |
21:dfd65207a645 | 163 | char *endptr; |
ccli8 |
21:dfd65207a645 | 164 | int32_t number = strtol(buf, &endptr, 10); |
ccli8 |
21:dfd65207a645 | 165 | if ( |
ccli8 |
21:dfd65207a645 | 166 | (errno == ERANGE) || // The number is too small/large |
ccli8 |
21:dfd65207a645 | 167 | (endptr == buf) || // No character was read |
ccli8 |
21:dfd65207a645 | 168 | (*endptr && *endptr != '\n') // The whole input was not converted |
ccli8 |
21:dfd65207a645 | 169 | ) { |
ccli8 |
21:dfd65207a645 | 170 | continue; |
ccli8 |
21:dfd65207a645 | 171 | } |
ccli8 |
21:dfd65207a645 | 172 | number += 1; |
ccli8 |
21:dfd65207a645 | 173 | |
ccli8 |
21:dfd65207a645 | 174 | // Seek to beginning of number |
ccli8 |
21:dfd65207a645 | 175 | fseek(f, pos, SEEK_SET); |
ccli8 |
21:dfd65207a645 | 176 | |
ccli8 |
21:dfd65207a645 | 177 | // Store number |
shliu1 |
25:1d348ccfc209 | 178 | fprintf(f, " %d\n", (int)number); |
shliu1 |
25:1d348ccfc209 | 179 | |
ccli8 |
21:dfd65207a645 | 180 | // Flush between write and read on same file |
ccli8 |
21:dfd65207a645 | 181 | fflush(f); |
ccli8 |
21:dfd65207a645 | 182 | } |
ccli8 |
21:dfd65207a645 | 183 | printf("\rIncrementing numbers (%d/%d)... OK\n", 10, 10); |
ccli8 |
21:dfd65207a645 | 184 | |
ccli8 |
21:dfd65207a645 | 185 | // Close the file which also flushes any cached writes |
ccli8 |
21:dfd65207a645 | 186 | printf("Closing \"/fs/numbers.txt\"... "); |
ccli8 |
21:dfd65207a645 | 187 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 188 | err = fclose(f); |
ccli8 |
21:dfd65207a645 | 189 | printf("%s\n", (err < 0 ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 190 | if (err < 0) { |
ccli8 |
21:dfd65207a645 | 191 | error("error: %s (%d)\n", strerror(errno), -errno); |
ccli8 |
21:dfd65207a645 | 192 | } |
ccli8 |
21:dfd65207a645 | 193 | |
ccli8 |
21:dfd65207a645 | 194 | // Display the root directory |
ccli8 |
21:dfd65207a645 | 195 | printf("Opening the root directory... "); |
ccli8 |
21:dfd65207a645 | 196 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 197 | DIR *d = opendir("/fs/"); |
ccli8 |
21:dfd65207a645 | 198 | printf("%s\n", (!d ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 199 | if (!d) { |
ccli8 |
21:dfd65207a645 | 200 | error("error: %s (%d)\n", strerror(errno), -errno); |
ccli8 |
21:dfd65207a645 | 201 | } |
ccli8 |
21:dfd65207a645 | 202 | |
ccli8 |
21:dfd65207a645 | 203 | printf("root directory:\n"); |
ccli8 |
21:dfd65207a645 | 204 | while (true) { |
ccli8 |
21:dfd65207a645 | 205 | struct dirent *e = readdir(d); |
ccli8 |
21:dfd65207a645 | 206 | if (!e) { |
ccli8 |
21:dfd65207a645 | 207 | break; |
ccli8 |
21:dfd65207a645 | 208 | } |
ccli8 |
21:dfd65207a645 | 209 | |
ccli8 |
21:dfd65207a645 | 210 | printf(" %s\n", e->d_name); |
ccli8 |
21:dfd65207a645 | 211 | } |
ccli8 |
21:dfd65207a645 | 212 | |
ccli8 |
21:dfd65207a645 | 213 | printf("Closing the root directory... "); |
ccli8 |
21:dfd65207a645 | 214 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 215 | err = closedir(d); |
ccli8 |
21:dfd65207a645 | 216 | printf("%s\n", (err < 0 ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 217 | if (err < 0) { |
ccli8 |
21:dfd65207a645 | 218 | error("error: %s (%d)\n", strerror(errno), -errno); |
ccli8 |
21:dfd65207a645 | 219 | } |
ccli8 |
21:dfd65207a645 | 220 | |
ccli8 |
21:dfd65207a645 | 221 | // Display the numbers file |
ccli8 |
21:dfd65207a645 | 222 | printf("Opening \"/fs/numbers.txt\"... "); |
ccli8 |
21:dfd65207a645 | 223 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 224 | f = fopen("/fs/numbers.txt", "r"); |
ccli8 |
21:dfd65207a645 | 225 | printf("%s\n", (!f ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 226 | if (!f) { |
ccli8 |
21:dfd65207a645 | 227 | error("error: %s (%d)\n", strerror(errno), -errno); |
ccli8 |
21:dfd65207a645 | 228 | } |
ccli8 |
21:dfd65207a645 | 229 | |
ccli8 |
21:dfd65207a645 | 230 | printf("numbers:\n"); |
ccli8 |
21:dfd65207a645 | 231 | while (!feof(f)) { |
ccli8 |
21:dfd65207a645 | 232 | int c = fgetc(f); |
ccli8 |
21:dfd65207a645 | 233 | printf("%c", c); |
ccli8 |
21:dfd65207a645 | 234 | } |
ccli8 |
21:dfd65207a645 | 235 | |
ccli8 |
21:dfd65207a645 | 236 | printf("\rClosing \"/fs/numbers.txt\"... "); |
ccli8 |
21:dfd65207a645 | 237 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 238 | err = fclose(f); |
ccli8 |
21:dfd65207a645 | 239 | printf("%s\n", (err < 0 ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 240 | if (err < 0) { |
ccli8 |
21:dfd65207a645 | 241 | error("error: %s (%d)\n", strerror(errno), -errno); |
ccli8 |
21:dfd65207a645 | 242 | } |
ccli8 |
21:dfd65207a645 | 243 | |
ccli8 |
21:dfd65207a645 | 244 | // Tidy up |
ccli8 |
21:dfd65207a645 | 245 | printf("Unmounting... "); |
ccli8 |
21:dfd65207a645 | 246 | fflush(stdout); |
ccli8 |
21:dfd65207a645 | 247 | err = fs.unmount(); |
ccli8 |
21:dfd65207a645 | 248 | printf("%s\n", (err < 0 ? "Fail :(" : "OK")); |
ccli8 |
21:dfd65207a645 | 249 | if (err < 0) { |
ccli8 |
21:dfd65207a645 | 250 | error("error: %s (%d)\n", strerror(-err), err); |
ccli8 |
21:dfd65207a645 | 251 | } |
ccli8 |
21:dfd65207a645 | 252 | |
ccli8 |
21:dfd65207a645 | 253 | printf("Mbed OS filesystem example done!\n"); |
ccli8 |
21:dfd65207a645 | 254 | } |
ccli8 |
21:dfd65207a645 | 255 |