SD card functionality
Dependents: ELEC350_Project2 SDcard
SDCard.cpp@2:9a5eea2adbf8, 2018-11-08 (annotated)
- Committer:
- Swabey89
- Date:
- Thu Nov 08 21:29:38 2018 +0000
- Revision:
- 2:9a5eea2adbf8
- Parent:
- 1:c3af0c26ded2
- Child:
- 3:c6e5dd2faa22
Initialise moved into SDcard, requires improvement. ultimately sampling will be done on timer ISR with data put in queue
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Swabey89 | 0:0fc2cf27ff9e | 1 | #include "SDCard.hpp" |
Swabey89 | 0:0fc2cf27ff9e | 2 | |
Swabey89 | 1:c3af0c26ded2 | 3 | void SDcard(void) |
Swabey89 | 0:0fc2cf27ff9e | 4 | { |
Swabey89 | 1:c3af0c26ded2 | 5 | |
Swabey89 | 2:9a5eea2adbf8 | 6 | |
Swabey89 | 2:9a5eea2adbf8 | 7 | //REQUIRES IMPROVEMENTS, SEE ONENOTE |
Swabey89 | 0:0fc2cf27ff9e | 8 | |
Swabey89 | 2:9a5eea2adbf8 | 9 | //Initialise the SD card |
Swabey89 | 2:9a5eea2adbf8 | 10 | if ( sd.init() != 0) { |
Swabey89 | 2:9a5eea2adbf8 | 11 | printf("Init failed \n"); |
Swabey89 | 2:9a5eea2adbf8 | 12 | lcd.cls(); |
Swabey89 | 2:9a5eea2adbf8 | 13 | lcd.printf("CANNOT INIT SD"); |
Swabey89 | 2:9a5eea2adbf8 | 14 | errorCode(FATAL); |
Swabey89 | 2:9a5eea2adbf8 | 15 | } |
Swabey89 | 2:9a5eea2adbf8 | 16 | |
Swabey89 | 2:9a5eea2adbf8 | 17 | //Create a filing system for SD Card |
Swabey89 | 2:9a5eea2adbf8 | 18 | FATFileSystem fs("sd", &sd); |
Swabey89 | 2:9a5eea2adbf8 | 19 | |
Swabey89 | 2:9a5eea2adbf8 | 20 | //Open to WRITE |
Swabey89 | 2:9a5eea2adbf8 | 21 | FILE* fp = fopen("/sd/test.csv","a"); |
Swabey89 | 2:9a5eea2adbf8 | 22 | if (fp == NULL) { |
Swabey89 | 2:9a5eea2adbf8 | 23 | error("Could not open file for write\n"); |
Swabey89 | 2:9a5eea2adbf8 | 24 | lcd.cls(); |
Swabey89 | 2:9a5eea2adbf8 | 25 | lcd.printf("CANNOT OPEN FILE\n\n"); |
Swabey89 | 2:9a5eea2adbf8 | 26 | errorCode(FATAL); |
Swabey89 | 2:9a5eea2adbf8 | 27 | } |
Swabey89 | 2:9a5eea2adbf8 | 28 | |
Swabey89 | 2:9a5eea2adbf8 | 29 | //Last message before sampling begins |
Swabey89 | 2:9a5eea2adbf8 | 30 | lcd.cls(); |
Swabey89 | 2:9a5eea2adbf8 | 31 | lcd.printf("READY\n\n"); |
Swabey89 | 2:9a5eea2adbf8 | 32 | |
Swabey89 | 2:9a5eea2adbf8 | 33 | //move? |
Swabey89 | 2:9a5eea2adbf8 | 34 | //Press either switch to unmount |
Swabey89 | 2:9a5eea2adbf8 | 35 | while ((SW1 == 0) && (SW2 == 0)) { |
Swabey89 | 2:9a5eea2adbf8 | 36 | |
Swabey89 | 2:9a5eea2adbf8 | 37 | //Base loop delay |
Swabey89 | 2:9a5eea2adbf8 | 38 | wait(1.0); |
Swabey89 | 2:9a5eea2adbf8 | 39 | |
Swabey89 | 2:9a5eea2adbf8 | 40 | //Read environmental sensors |
Swabey89 | 2:9a5eea2adbf8 | 41 | double temp = sensor.getTemperature(); |
Swabey89 | 2:9a5eea2adbf8 | 42 | double pressure = sensor.getPressure(); |
Swabey89 | 2:9a5eea2adbf8 | 43 | |
Swabey89 | 2:9a5eea2adbf8 | 44 | //Write new data to LCD (not fast!) |
Swabey89 | 2:9a5eea2adbf8 | 45 | lcd.cls(); |
Swabey89 | 2:9a5eea2adbf8 | 46 | lcd.printf("Temp Pressure\n"); |
Swabey89 | 2:9a5eea2adbf8 | 47 | lcd.printf("%6.1f ",temp); |
Swabey89 | 2:9a5eea2adbf8 | 48 | lcd.printf("%.2f\n",pressure); |
Swabey89 | 2:9a5eea2adbf8 | 49 | |
Swabey89 | 2:9a5eea2adbf8 | 50 | //Write to SD (potentially slow) |
Swabey89 | 2:9a5eea2adbf8 | 51 | //fprintf(fp, "%6.1f,%.2f\n\r", temp, pressure); |
Swabey89 | 2:9a5eea2adbf8 | 52 | } |
Swabey89 | 2:9a5eea2adbf8 | 53 | |
Swabey89 | 2:9a5eea2adbf8 | 54 | //Close File |
Swabey89 | 2:9a5eea2adbf8 | 55 | fclose(fp); |
Swabey89 | 2:9a5eea2adbf8 | 56 | |
Swabey89 | 2:9a5eea2adbf8 | 57 | //Close down |
Swabey89 | 2:9a5eea2adbf8 | 58 | sd.deinit(); |
Swabey89 | 2:9a5eea2adbf8 | 59 | printf("Unmounted...\n"); |
Swabey89 | 2:9a5eea2adbf8 | 60 | lcd.cls(); |
Swabey89 | 2:9a5eea2adbf8 | 61 | lcd.printf("Unmounted...\n\n"); |
Swabey89 | 1:c3af0c26ded2 | 62 | } |
Swabey89 | 1:c3af0c26ded2 | 63 | |
Swabey89 | 1:c3af0c26ded2 | 64 | void SDread(int n) |
Swabey89 | 1:c3af0c26ded2 | 65 | { |
Swabey89 | 2:9a5eea2adbf8 | 66 | if (n == -1) puts("Received command to read all"); |
Swabey89 | 2:9a5eea2adbf8 | 67 | else printf("Received command to read %d\n", n); |
Swabey89 | 2:9a5eea2adbf8 | 68 | } |
Swabey89 | 2:9a5eea2adbf8 | 69 | |
Swabey89 | 2:9a5eea2adbf8 | 70 | void SDdelete(int n) |
Swabey89 | 2:9a5eea2adbf8 | 71 | { |
Swabey89 | 2:9a5eea2adbf8 | 72 | if (n == -1) puts("Received command to delete all"); |
Swabey89 | 2:9a5eea2adbf8 | 73 | else printf("Received command to delete %d\n", n); |
Swabey89 | 1:c3af0c26ded2 | 74 | } |
Swabey89 | 1:c3af0c26ded2 | 75 | |
Swabey89 | 1:c3af0c26ded2 | 76 | void SDalive(void) |
Swabey89 | 1:c3af0c26ded2 | 77 | { |
Swabey89 | 2:9a5eea2adbf8 | 78 | //puts("SD THREAD ALIVE\n"); |
Swabey89 | 0:0fc2cf27ff9e | 79 | } |