SD card functionality
Dependents: ELEC350_Project2 SDcard
SDCard.cpp
- Committer:
- Swabey89
- Date:
- 2018-12-19
- Revision:
- 10:f2b8e3b587d5
- Parent:
- 9:113f4934b907
- Child:
- 11:89960c1f2234
File content as of revision 10:f2b8e3b587d5:
#include "SDCard.hpp" #include <string> void SDcard(void) { static time_t seconds; //static reqiured? //Initialise the SD card if (sd.init() != 0) { printlock.lock(); pc->printf("WARNING:SD CARD INITIALISATION FAILED\n\r"); printlock.unlock(); sd_init = false; //lcd.cls(); //lcd.printf("CANNOT INIT SD"); //errorCode(FATAL); } else { //Create a filing system for SD Card fs = new FATFileSystem("sd", &sd); printlock.lock(); pc->printf("SD CARD INITIALISED\n\r"); printlock.unlock(); //Open to WRITE char fileDate[30]; timeLock.lock(); seconds = time(NULL); timeData = localtime(&seconds); set_time(mktime(timeData)); strftime(fileDate, 30, "sd/log_%d_%m_%y.csv", timeData); timeLock.unlock(); fp = fopen(fileDate,"a"); if (fp == NULL) { printlock.lock(); pc->printf("WARNING: COULD NOT OPEN FILE FOR WRITE\n\r"); printlock.unlock(); //lcd.cls(); //lcd.printf("CANNOT OPEN FILE\n\n"); //errorCode(FATAL); } else { printlock.lock(); pc->printf("FILE OPEN FOR WRITING\n\n\n\r"); printlock.unlock(); sd_init = true; } fclose(fp); } } void SDread(int n) { //Read n samples from the SD card printlock.lock(); if (n == -1) puts("Received command to read all"); else printf("Received command to read %d\n", n); printlock.unlock(); } void SDdelete(int n) { //Delete n samples from the SD card printlock.lock(); if (n == -1) puts("Received command to delete all"); else printf("Received command to delete %d\n", n); printlock.unlock(); } //UNUSED void SDaddSample(double temp, double pressure) { //Add the sampled data to the SD card yellowLED = !yellowLED; //debugging fp = fopen("/sd/q.csv","a"); fprintf(fp, "%6.1f,%.2f\n\r", temp, pressure); fclose(fp); } void SDalive(void) { //Signal that the SD thread is still alive //puts("SD THREAD ALIVE\n"); } void SDmount(void) { while(true) { Thread::signal_wait(SIGNAL_SD); if (sd_init) { fclose(fp); sd.deinit(); printlock.lock(); pc->printf("SD CARD UNMOUNTED\n\r"); printlock.unlock(); LCDlock.lock(); lcd.cls(); lcd.printf("Unmounted.."); Thread::wait(5000); LCDlock.unlock(); sd_init = false; } else { SDcard(); LCDlock.lock(); lcd.cls(); if (sd_init) { lcd.printf("SD mounted.."); } else { lcd.printf("SD FAILED.."); } Thread::wait(5000); LCDlock.unlock(); } } }