A set of data recording functions to locally store data in a circular buffer, with functions for offloading to an SD Card when convenient. dataRecorderr.h shows accessible functions to the main program - all direct SD operations are abstracted away by the library. When using this library, #include dataRecorder.h
Dependencies: sd-driver_compatible_with_MAX32630FTHR
Fork of CircularBufferSDCardLib by
sdCardReader.cpp@4:fe6d2823b7cb, 2018-04-05 (annotated)
- Committer:
- DVLevine
- Date:
- Thu Apr 05 01:22:57 2018 -0400
- Revision:
- 4:fe6d2823b7cb
- Parent:
- 3:df8fb1b5d868
- Child:
- 5:0a4ff027086c
Finished fixing bug pieces but no print statement.....
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
DVLevine | 0:ebe71c7e7854 | 1 | #include "sdCardReader.h" |
DVLevine | 0:ebe71c7e7854 | 2 | |
DVLevine |
1:45627bbdeb69 | 3 | |
DVLevine |
4:fe6d2823b7cb | 4 | //helpers |
DVLevine |
4:fe6d2823b7cb | 5 | int getSize(int* p){ |
DVLevine |
4:fe6d2823b7cb | 6 | return (sizeof(p)/sizeof(*p)); |
DVLevine |
4:fe6d2823b7cb | 7 | } |
DVLevine |
4:fe6d2823b7cb | 8 | |
DVLevine |
4:fe6d2823b7cb | 9 | int getSize(uint16_t* p){ |
DVLevine |
4:fe6d2823b7cb | 10 | return (sizeof(p)/sizeof(*p)); |
DVLevine |
4:fe6d2823b7cb | 11 | } |
DVLevine |
4:fe6d2823b7cb | 12 | |
DVLevine |
1:45627bbdeb69 | 13 | //private essential methods |
DVLevine |
1:45627bbdeb69 | 14 | // Try to mount the filesystem |
DVLevine |
1:45627bbdeb69 | 15 | void SDCardReader::mountFileSystem(){ |
DVLevine |
1:45627bbdeb69 | 16 | printf("Mounting the filesystem... "); |
DVLevine |
1:45627bbdeb69 | 17 | fflush(stdout); |
DVLevine |
4:fe6d2823b7cb | 18 | int err = m_fs->mount(this); |
DVLevine |
1:45627bbdeb69 | 19 | printf("%s\n", (err ? "Fail :(" : "OK")); |
DVLevine |
1:45627bbdeb69 | 20 | if (err) { |
DVLevine |
1:45627bbdeb69 | 21 | // Reformat if we can't mount the filesystem |
DVLevine |
1:45627bbdeb69 | 22 | // this should only happen on the first boot |
DVLevine |
1:45627bbdeb69 | 23 | printf("No filesystem found, formatting... "); |
DVLevine |
1:45627bbdeb69 | 24 | fflush(stdout); |
DVLevine |
4:fe6d2823b7cb | 25 | err = m_fs->reformat(this); |
DVLevine |
1:45627bbdeb69 | 26 | printf("%s\n", (err ? "Fail :(" : "OK")); |
DVLevine |
1:45627bbdeb69 | 27 | if (err) { |
DVLevine |
1:45627bbdeb69 | 28 | error("error: %s (%d)\n", strerror(-err), err); |
DVLevine |
1:45627bbdeb69 | 29 | } |
DVLevine |
1:45627bbdeb69 | 30 | } |
DVLevine |
1:45627bbdeb69 | 31 | } |
DVLevine |
1:45627bbdeb69 | 32 | |
DVLevine |
1:45627bbdeb69 | 33 | void SDCardReader::unmountFileSystem(){ |
DVLevine |
1:45627bbdeb69 | 34 | printf("Unmounting... "); |
DVLevine |
1:45627bbdeb69 | 35 | fflush(stdout); |
DVLevine |
4:fe6d2823b7cb | 36 | int err = m_fs->unmount(); |
DVLevine |
1:45627bbdeb69 | 37 | printf("%s\n", (err < 0 ? "Fail :(" : "OK")); |
DVLevine |
1:45627bbdeb69 | 38 | if (err < 0) { |
DVLevine |
1:45627bbdeb69 | 39 | error("error: %s (%d)\n", strerror(-err), err); |
DVLevine |
1:45627bbdeb69 | 40 | } |
DVLevine |
1:45627bbdeb69 | 41 | } |
DVLevine | 0:ebe71c7e7854 | 42 | |
DVLevine | 0:ebe71c7e7854 | 43 | |
DVLevine |
1:45627bbdeb69 | 44 | FILE* SDCardReader::openFile(string filename){ |
DVLevine |
4:fe6d2823b7cb | 45 | printf("Opening \"/fs/%s\"... ",filename.c_str()); |
DVLevine |
1:45627bbdeb69 | 46 | fflush(stdout); |
DVLevine |
4:fe6d2823b7cb | 47 | FILE *f = fopen(filename.c_str(), "r+"); |
DVLevine |
1:45627bbdeb69 | 48 | printf("%s\n", (!f ? "Fail :(" : "OK")); |
DVLevine |
1:45627bbdeb69 | 49 | if (!f) { |
DVLevine |
1:45627bbdeb69 | 50 | // Create the file if it doesn't exist |
DVLevine |
1:45627bbdeb69 | 51 | printf("No file found, creating a new file... "); |
DVLevine |
1:45627bbdeb69 | 52 | fflush(stdout); |
DVLevine |
4:fe6d2823b7cb | 53 | f = fopen(filename.c_str(), "w+"); |
DVLevine |
1:45627bbdeb69 | 54 | printf("%s\n", (!f ? "Fail :(" : "OK")); |
DVLevine |
1:45627bbdeb69 | 55 | if (!f) { |
DVLevine |
1:45627bbdeb69 | 56 | error("error: %s (%d)\n", strerror(errno), -errno); |
DVLevine | 0:ebe71c7e7854 | 57 | } |
DVLevine |
1:45627bbdeb69 | 58 | } |
DVLevine |
1:45627bbdeb69 | 59 | return f; |
DVLevine |
1:45627bbdeb69 | 60 | } |
DVLevine |
1:45627bbdeb69 | 61 | |
DVLevine |
1:45627bbdeb69 | 62 | void SDCardReader::write_uint16_t(uint16_t data, bool endline, FILE* fileToUse){ |
DVLevine |
1:45627bbdeb69 | 63 | FILE *f = fileToUse; |
DVLevine |
1:45627bbdeb69 | 64 | printf("%s\n", (!f ? "Fail :(" : "OK")); |
DVLevine |
1:45627bbdeb69 | 65 | |
DVLevine |
4:fe6d2823b7cb | 66 | printf("\rWriting 16 bit value: %" PRIu16, data); |
DVLevine |
1:45627bbdeb69 | 67 | fflush(stdout); |
DVLevine |
1:45627bbdeb69 | 68 | |
DVLevine |
4:fe6d2823b7cb | 69 | int err = 0; |
DVLevine |
1:45627bbdeb69 | 70 | //write and check for error |
DVLevine |
1:45627bbdeb69 | 71 | if (endline){ |
DVLevine |
4:fe6d2823b7cb | 72 | err = fprintf(f,"%" PRIu16 "\n",data); |
DVLevine |
1:45627bbdeb69 | 73 | }else{ |
DVLevine |
4:fe6d2823b7cb | 74 | err = fprintf(f,"%" PRIu16,data); |
DVLevine |
1:45627bbdeb69 | 75 | } |
DVLevine |
1:45627bbdeb69 | 76 | |
DVLevine |
1:45627bbdeb69 | 77 | if (err < 0) { |
DVLevine |
1:45627bbdeb69 | 78 | printf("Fail :(\n"); |
DVLevine |
1:45627bbdeb69 | 79 | error("error: %s (%d)\n", strerror(errno), -errno); |
DVLevine |
1:45627bbdeb69 | 80 | } |
DVLevine |
1:45627bbdeb69 | 81 | } |
DVLevine |
1:45627bbdeb69 | 82 | |
DVLevine |
1:45627bbdeb69 | 83 | |
DVLevine |
1:45627bbdeb69 | 84 | void SDCardReader::write_uint32_t(uint32_t data, bool endline, FILE* fileToUse){ |
DVLevine |
1:45627bbdeb69 | 85 | FILE *f = fileToUse; |
DVLevine |
1:45627bbdeb69 | 86 | printf("%s\n", (!f ? "Fail :(" : "OK")); |
DVLevine |
4:fe6d2823b7cb | 87 | |
DVLevine |
4:fe6d2823b7cb | 88 | printf("\rWriting 32 bit value: %" PRIu32, data); |
DVLevine |
4:fe6d2823b7cb | 89 | //printf("\rWriting datapoint %d", data); |
DVLevine |
1:45627bbdeb69 | 90 | fflush(stdout); |
DVLevine |
1:45627bbdeb69 | 91 | |
DVLevine |
4:fe6d2823b7cb | 92 | int err = 0; |
DVLevine |
1:45627bbdeb69 | 93 | //write and check for error |
DVLevine |
1:45627bbdeb69 | 94 | if (endline){ |
DVLevine |
4:fe6d2823b7cb | 95 | err = fprintf(f,"%" PRIu32 "\n",data); |
DVLevine |
1:45627bbdeb69 | 96 | }else{ |
DVLevine |
4:fe6d2823b7cb | 97 | err = fprintf(f,"%" PRIu32,data); |
DVLevine |
1:45627bbdeb69 | 98 | } |
DVLevine |
1:45627bbdeb69 | 99 | |
DVLevine |
1:45627bbdeb69 | 100 | if (err < 0) { |
DVLevine |
1:45627bbdeb69 | 101 | printf("Fail :(\n"); |
DVLevine |
1:45627bbdeb69 | 102 | error("error: %s (%d)\n", strerror(errno), -errno); |
DVLevine |
1:45627bbdeb69 | 103 | } |
DVLevine |
1:45627bbdeb69 | 104 | } |
DVLevine |
1:45627bbdeb69 | 105 | |
DVLevine |
1:45627bbdeb69 | 106 | |
DVLevine |
1:45627bbdeb69 | 107 | void SDCardReader::closeFile(FILE* fileToClose){ |
DVLevine |
1:45627bbdeb69 | 108 | // Close the file which also flushes any cached writes |
DVLevine |
1:45627bbdeb69 | 109 | printf("Closing file..."); |
DVLevine |
1:45627bbdeb69 | 110 | fflush(stdout); |
DVLevine |
4:fe6d2823b7cb | 111 | |
DVLevine |
4:fe6d2823b7cb | 112 | int err = 0; |
DVLevine |
1:45627bbdeb69 | 113 | err = fclose(fileToClose); |
DVLevine |
1:45627bbdeb69 | 114 | printf("%s\n", (err < 0 ? "Fail :(" : "OK")); |
DVLevine |
1:45627bbdeb69 | 115 | if (err < 0) { |
DVLevine |
1:45627bbdeb69 | 116 | error("error: %s (%d)\n", strerror(errno), -errno); |
DVLevine |
1:45627bbdeb69 | 117 | } |
DVLevine |
1:45627bbdeb69 | 118 | } |
DVLevine |
1:45627bbdeb69 | 119 | |
DVLevine |
1:45627bbdeb69 | 120 | int SDCardReader::fullWriteProcedure(string filename,int* indexArr, uint32_t* timeArr, uint16_t** allData){ |
DVLevine |
1:45627bbdeb69 | 121 | mountFileSystem(); |
DVLevine |
1:45627bbdeb69 | 122 | FILE* theFile = openFile(filename); |
DVLevine |
1:45627bbdeb69 | 123 | |
DVLevine |
4:fe6d2823b7cb | 124 | for (int i = 0; i<getSize(indexArr); i++){ |
DVLevine |
1:45627bbdeb69 | 125 | writeDataPoint(theFile,indexArr[i],timeArr[i], allData[i]); |
DVLevine |
1:45627bbdeb69 | 126 | } |
DVLevine |
1:45627bbdeb69 | 127 | |
DVLevine |
1:45627bbdeb69 | 128 | closeFile(theFile); |
DVLevine |
1:45627bbdeb69 | 129 | unmountFileSystem(); |
DVLevine |
1:45627bbdeb69 | 130 | |
DVLevine |
1:45627bbdeb69 | 131 | return 1; |
DVLevine | 0:ebe71c7e7854 | 132 | } |
DVLevine | 0:ebe71c7e7854 | 133 | |
DVLevine | 0:ebe71c7e7854 | 134 | //use circular buffers instead of strings |
DVLevine |
1:45627bbdeb69 | 135 | //write as 1st column, index. 2nd column timestamp. 3rd column data1. 4th data2. etc. |
DVLevine |
1:45627bbdeb69 | 136 | //pass in array of circular buffers |
DVLevine |
1:45627bbdeb69 | 137 | int SDCardReader::writeDataPoint(FILE* theFile, int index, uint32_t timestamp, uint16_t* data){ |
DVLevine |
1:45627bbdeb69 | 138 | // FILE* theFile = openFile(filename); |
DVLevine |
1:45627bbdeb69 | 139 | |
DVLevine |
1:45627bbdeb69 | 140 | //write index |
DVLevine |
1:45627bbdeb69 | 141 | write_uint16_t(index, false, theFile); |
DVLevine |
1:45627bbdeb69 | 142 | //write timestamp |
DVLevine |
1:45627bbdeb69 | 143 | write_uint32_t(timestamp, false, theFile); |
DVLevine |
1:45627bbdeb69 | 144 | |
DVLevine |
1:45627bbdeb69 | 145 | //write data |
DVLevine |
4:fe6d2823b7cb | 146 | for (int i = 0; i < getSize(data)-1; i++) { |
DVLevine |
1:45627bbdeb69 | 147 | write_uint16_t(data[i], false, theFile); |
DVLevine |
1:45627bbdeb69 | 148 | } |
DVLevine |
4:fe6d2823b7cb | 149 | write_uint16_t(data[getSize(data)], false, theFile); |
DVLevine |
1:45627bbdeb69 | 150 | |
DVLevine |
1:45627bbdeb69 | 151 | closeFile(theFile); |
DVLevine |
1:45627bbdeb69 | 152 | |
DVLevine |
1:45627bbdeb69 | 153 | // call the SDBlockDevice instance de-initialisation method. |
DVLevine | 0:ebe71c7e7854 | 154 | this->deinit(); |
DVLevine | 0:ebe71c7e7854 | 155 | |
DVLevine | 0:ebe71c7e7854 | 156 | return 0; |
DVLevine | 0:ebe71c7e7854 | 157 | } |
DVLevine | 0:ebe71c7e7854 | 158 | |
DVLevine | 0:ebe71c7e7854 | 159 | int SDCardReader::eraseData(){ |
DVLevine | 0:ebe71c7e7854 | 160 | printf("Initializing the block device... "); |
DVLevine | 0:ebe71c7e7854 | 161 | fflush(stdout); |
DVLevine |
4:fe6d2823b7cb | 162 | int err = this->init(); |
DVLevine | 0:ebe71c7e7854 | 163 | printf("%s\n", (err ? "Fail :(" : "OK")); |
DVLevine | 0:ebe71c7e7854 | 164 | if (err) { |
DVLevine | 0:ebe71c7e7854 | 165 | error("error: %s (%d)\n", strerror(-err), err); |
DVLevine | 0:ebe71c7e7854 | 166 | } |
DVLevine | 0:ebe71c7e7854 | 167 | |
DVLevine | 0:ebe71c7e7854 | 168 | printf("Erasing the block device... "); |
DVLevine | 0:ebe71c7e7854 | 169 | fflush(stdout); |
DVLevine |
4:fe6d2823b7cb | 170 | err = this->erase(0, this->size()); |
DVLevine | 0:ebe71c7e7854 | 171 | printf("%s\n", (err ? "Fail :(" : "OK")); |
DVLevine | 0:ebe71c7e7854 | 172 | if (err) { |
DVLevine | 0:ebe71c7e7854 | 173 | error("error: %s (%d)\n", strerror(-err), err); |
DVLevine | 0:ebe71c7e7854 | 174 | } |
DVLevine | 0:ebe71c7e7854 | 175 | |
DVLevine | 0:ebe71c7e7854 | 176 | printf("Deinitializing the block device... "); |
DVLevine | 0:ebe71c7e7854 | 177 | fflush(stdout); |
DVLevine |
4:fe6d2823b7cb | 178 | err = this->deinit(); |
DVLevine | 0:ebe71c7e7854 | 179 | printf("%s\n", (err ? "Fail :(" : "OK")); |
DVLevine | 0:ebe71c7e7854 | 180 | if (err) { |
DVLevine | 0:ebe71c7e7854 | 181 | error("error: %s (%d)\n", strerror(-err), err); |
DVLevine | 0:ebe71c7e7854 | 182 | } |
DVLevine |
4:fe6d2823b7cb | 183 | |
DVLevine |
4:fe6d2823b7cb | 184 | return err; |
DVLevine |
1:45627bbdeb69 | 185 | } |
DVLevine |
4:fe6d2823b7cb | 186 |