Lucy Luz / Mbed 2 deprecated RwSDCard_Xml_GPS

Initial Publish Leaning GPS/SDCARD

Dependencies:   FileManager GPSGms6 SDFileSystem mbed

Fork of 2545_SD_Card by Craig Evans

main.cpp@1:f911149acd35, 2016-05-06 (annotated)

Committer:
Lucyjungz
Date:
Fri May 06 19:30:02 2016 +0000
Revision:
1:f911149acd35
Parent:
0:5448330e1a33
Child:
2:c96b02fcb98e
Initial Commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
eencae 0:5448330e1a33 1 /* 2545_SD_Card Example
eencae 0:5448330e1a33 2
eencae 0:5448330e1a33 3 Example of writing data to SD card.
eencae 0:5448330e1a33 4
eencae 0:5448330e1a33 5 Based on FTF2014_lab4 Example
eencae 0:5448330e1a33 6
eencae 0:5448330e1a33 7 https://developer.mbed.org/teams/Freescale/wiki/FTF2014_workshop
eencae 0:5448330e1a33 8
eencae 0:5448330e1a33 9 Craig A. Evans, University of Leeds, Mar 2016
eencae 0:5448330e1a33 10
eencae 0:5448330e1a33 11 */
eencae 0:5448330e1a33 12
eencae 0:5448330e1a33 13 #include "mbed.h"
eencae 0:5448330e1a33 14 #include "SDFileSystem.h"
Lucyjungz 1:f911149acd35 15 #include "GPSGms6.h"
Lucyjungz 1:f911149acd35 16
Lucyjungz 1:f911149acd35 17 #define GPS_TAG "<Gps>"
Lucyjungz 1:f911149acd35 18 #define DATA_TAG "<Data>"
Lucyjungz 1:f911149acd35 19 #define UPDATE_INTERVAL_TAG "<Update_Interval>"
Lucyjungz 1:f911149acd35 20
Lucyjungz 1:f911149acd35 21
Lucyjungz 1:f911149acd35 22 #define XMLTEXT_SIZE 20
eencae 0:5448330e1a33 23
eencae 0:5448330e1a33 24 // Connections to SD card holder on K64F (SPI interface)
Lucyjungz 1:f911149acd35 25 SDFileSystem sd(PA_7, PA_6, PA_5, PA_0, "sd"); // MOSI, MISO, SCK, CS
eencae 0:5448330e1a33 26 Serial serial(USBTX, USBRX); // for PC debug
Lucyjungz 1:f911149acd35 27 GPSGms6 gps;
Lucyjungz 1:f911149acd35 28 Timeout t1;
Lucyjungz 1:f911149acd35 29 DigitalOut myled(LED1);
Lucyjungz 1:f911149acd35 30
Lucyjungz 1:f911149acd35 31 char m_GpsInterval[XMLTEXT_SIZE];
Lucyjungz 1:f911149acd35 32 char m_DataInterval[XMLTEXT_SIZE];
Lucyjungz 1:f911149acd35 33 typedef enum {
Lucyjungz 1:f911149acd35 34 STATE_FINDING, /** Finding */
Lucyjungz 1:f911149acd35 35 STATE_FOUND_DATA, /** Found Data tag */
Lucyjungz 1:f911149acd35 36 STATE_FOUND_DATA_INTERVAL, /**< Found update internal of tag*/
Lucyjungz 1:f911149acd35 37 STATE_FOUND_GPS, /** Found GPS tag */
Lucyjungz 1:f911149acd35 38 STATE_FOUND_GPS_INTERVAL, /** Found update internal of GPS*/
Lucyjungz 1:f911149acd35 39 }ReadingFileState;
Lucyjungz 1:f911149acd35 40 void delete_file(char filename[]);
Lucyjungz 1:f911149acd35 41 void t1out(void)
Lucyjungz 1:f911149acd35 42 {
Lucyjungz 1:f911149acd35 43 myled = !myled;
Lucyjungz 1:f911149acd35 44 printf("\r\nGps header = %s", gps.latestGPRMC().header);
Lucyjungz 1:f911149acd35 45 printf("\r\nGps status = %s", gps.latestGPRMC().status);
Lucyjungz 1:f911149acd35 46 printf("\r\nGps time = %s", gps.latestGPRMC().time);
Lucyjungz 1:f911149acd35 47 printf("\r\nGps date = %s", gps.latestGPRMC().date);
Lucyjungz 1:f911149acd35 48 printf("\r\nGps lat = %s", gps.latestGPRMC().latitude);
Lucyjungz 1:f911149acd35 49 printf("\r\nGps long = %s", gps.latestGPRMC().longitude);
Lucyjungz 1:f911149acd35 50 printf("\r\nGps indicator = %s", gps.latestGPRMC().indicator);
Lucyjungz 1:f911149acd35 51 t1.attach(&t1out,5);
Lucyjungz 1:f911149acd35 52 }
Lucyjungz 1:f911149acd35 53 void removeSpaces(char* s , int size)
Lucyjungz 1:f911149acd35 54 {
Lucyjungz 1:f911149acd35 55 char* cpy = s; // an alias to iterate through s without moving s
Lucyjungz 1:f911149acd35 56 char* temp = s;
eencae 0:5448330e1a33 57
Lucyjungz 1:f911149acd35 58 for (int i = 0 ; i < size ; i++)
Lucyjungz 1:f911149acd35 59 {
Lucyjungz 1:f911149acd35 60 if (*cpy != ' ')
Lucyjungz 1:f911149acd35 61 *temp++ = *cpy;
Lucyjungz 1:f911149acd35 62 cpy++;
Lucyjungz 1:f911149acd35 63 }
Lucyjungz 1:f911149acd35 64 *temp = 0;
Lucyjungz 1:f911149acd35 65 return;
Lucyjungz 1:f911149acd35 66 }
Lucyjungz 1:f911149acd35 67 void getXmlText(char *str, char *ret)
Lucyjungz 1:f911149acd35 68 {
Lucyjungz 1:f911149acd35 69 int size = strlen(str);
Lucyjungz 1:f911149acd35 70 int i;
Lucyjungz 1:f911149acd35 71 bool begin_text = false;
Lucyjungz 1:f911149acd35 72 char * ret_addr = ret;
Lucyjungz 1:f911149acd35 73 memset (ret,' ',XMLTEXT_SIZE);
Lucyjungz 1:f911149acd35 74
Lucyjungz 1:f911149acd35 75 for(i = 0; i < size ; i++)
Lucyjungz 1:f911149acd35 76 {
Lucyjungz 1:f911149acd35 77
Lucyjungz 1:f911149acd35 78 if (*str == '>')
Lucyjungz 1:f911149acd35 79 {
Lucyjungz 1:f911149acd35 80 begin_text = true;
Lucyjungz 1:f911149acd35 81 }
Lucyjungz 1:f911149acd35 82 else if (begin_text && *str == '<')
Lucyjungz 1:f911149acd35 83 {
Lucyjungz 1:f911149acd35 84 begin_text = false;
Lucyjungz 1:f911149acd35 85 break;
Lucyjungz 1:f911149acd35 86 }
Lucyjungz 1:f911149acd35 87 else if (begin_text && *str != ' ')
Lucyjungz 1:f911149acd35 88 {
Lucyjungz 1:f911149acd35 89 *ret = *str;
Lucyjungz 1:f911149acd35 90 ret++;
Lucyjungz 1:f911149acd35 91 }
Lucyjungz 1:f911149acd35 92
Lucyjungz 1:f911149acd35 93 str++;
Lucyjungz 1:f911149acd35 94 }
Lucyjungz 1:f911149acd35 95 removeSpaces(ret_addr, XMLTEXT_SIZE);
Lucyjungz 1:f911149acd35 96 }
eencae 0:5448330e1a33 97 int main()
eencae 0:5448330e1a33 98 {
Lucyjungz 1:f911149acd35 99 serial.baud(9600); // full-speed!
eencae 0:5448330e1a33 100 serial.printf("#### SD Card Example #####\n");
eencae 0:5448330e1a33 101 FILE *fp; // this is our file pointer
eencae 0:5448330e1a33 102 wait(1);
eencae 0:5448330e1a33 103
eencae 0:5448330e1a33 104 // Various examples below - can comment out ones you don't need
eencae 0:5448330e1a33 105
eencae 0:5448330e1a33 106 /////////////////////// Deleting file example ////////////////////////
eencae 0:5448330e1a33 107
eencae 0:5448330e1a33 108 // comment this line out if you don't want to delete the file!
eencae 0:5448330e1a33 109 delete_file("/sd/test.txt");
eencae 0:5448330e1a33 110
eencae 0:5448330e1a33 111 ////////////////////// Simple writing example //////////////////////////
eencae 0:5448330e1a33 112
eencae 0:5448330e1a33 113 // open file for writing ('w') - creates file if it doesn't exist and overwrites
eencae 0:5448330e1a33 114 // if it does. If you wish to add a score onto a list, then you can
eencae 0:5448330e1a33 115 // append instead 'a'. This will open the file if it exists and start
eencae 0:5448330e1a33 116 // writing at the end. It will create the file if it doesn't exist.
eencae 0:5448330e1a33 117 fp = fopen("/sd/topscore.txt", "w");
eencae 0:5448330e1a33 118 int top_score = 56; // random example
eencae 0:5448330e1a33 119
eencae 0:5448330e1a33 120 if (fp == NULL) { // if it can't open the file then print error message
eencae 0:5448330e1a33 121 serial.printf("Error! Unable to open file!\n");
eencae 0:5448330e1a33 122 } else { // opened file so can write
eencae 0:5448330e1a33 123 serial.printf("Writing to file....");
eencae 0:5448330e1a33 124 fprintf(fp, "%d",top_score); // ensure data type matches
eencae 0:5448330e1a33 125 serial.printf("Done.\n");
eencae 0:5448330e1a33 126 fclose(fp); // ensure you close the file after writing
eencae 0:5448330e1a33 127 }
eencae 0:5448330e1a33 128
eencae 0:5448330e1a33 129 ////////////////////// Simple reading example //////////////////////////
eencae 0:5448330e1a33 130
eencae 0:5448330e1a33 131 // now open file for reading
Lucyjungz 1:f911149acd35 132 fp = fopen("/sd/RMS_Tester.xml", "r");
eencae 0:5448330e1a33 133
eencae 0:5448330e1a33 134 if (fp == NULL) { // if it can't open the file then print error message
eencae 0:5448330e1a33 135 serial.printf("Error! Unable to open file!\n");
eencae 0:5448330e1a33 136 } else { // opened file so can write
Lucyjungz 1:f911149acd35 137 // fscanf(fp, "%d",&stored_top_score); // ensure data type matches - note address operator (&)
Lucyjungz 1:f911149acd35 138 // serial.printf("Read %d from file.\n",stored_top_score);
Lucyjungz 1:f911149acd35 139
Lucyjungz 1:f911149acd35 140 ReadingFileState state = STATE_FINDING;
Lucyjungz 1:f911149acd35 141 char buf[1024];
Lucyjungz 1:f911149acd35 142 while (fgets(buf, sizeof(buf), fp) != NULL)
Lucyjungz 1:f911149acd35 143 {
Lucyjungz 1:f911149acd35 144 if (strstr (buf,DATA_TAG))
Lucyjungz 1:f911149acd35 145 {
Lucyjungz 1:f911149acd35 146 state = STATE_FOUND_DATA;
Lucyjungz 1:f911149acd35 147 }
Lucyjungz 1:f911149acd35 148 else if (strstr (buf,GPS_TAG))
Lucyjungz 1:f911149acd35 149 {
Lucyjungz 1:f911149acd35 150 state = STATE_FOUND_GPS;
Lucyjungz 1:f911149acd35 151 }
Lucyjungz 1:f911149acd35 152 else if (strstr (buf,UPDATE_INTERVAL_TAG))
Lucyjungz 1:f911149acd35 153 {
Lucyjungz 1:f911149acd35 154 if (state == STATE_FOUND_GPS)
Lucyjungz 1:f911149acd35 155 {
Lucyjungz 1:f911149acd35 156 getXmlText(buf, m_GpsInterval);
Lucyjungz 1:f911149acd35 157 printf("\r\n-found GPS interval %s ", m_GpsInterval);
Lucyjungz 1:f911149acd35 158 state = STATE_FINDING;
Lucyjungz 1:f911149acd35 159 }
Lucyjungz 1:f911149acd35 160 else if(state == STATE_FOUND_DATA)
Lucyjungz 1:f911149acd35 161 {
Lucyjungz 1:f911149acd35 162 getXmlText(buf, m_DataInterval);
Lucyjungz 1:f911149acd35 163 printf("\r\n-found Data interval %s ", m_DataInterval);
Lucyjungz 1:f911149acd35 164 state = STATE_FINDING;
Lucyjungz 1:f911149acd35 165 }
Lucyjungz 1:f911149acd35 166 }
Lucyjungz 1:f911149acd35 167 }
eencae 0:5448330e1a33 168 fclose(fp); // ensure you close the file after reading
eencae 0:5448330e1a33 169 }
eencae 0:5448330e1a33 170
eencae 0:5448330e1a33 171 ///////////////////// Writing list to file example //////////////////////
eencae 0:5448330e1a33 172
eencae 0:5448330e1a33 173 // for this example, I'll create some numbers to write to file in a big list
eencae 0:5448330e1a33 174 // a data logger for example will usually append to a file - at a reading
eencae 0:5448330e1a33 175 // at the end rather than creating a new file
eencae 0:5448330e1a33 176 fp = fopen("/sd/test.txt", "a");
eencae 0:5448330e1a33 177
eencae 0:5448330e1a33 178 if (fp == NULL) { // if it can't open the file then print error message
eencae 0:5448330e1a33 179 serial.printf("Error! Unable to open file!\n");
eencae 0:5448330e1a33 180 } else { // opened file so can write
eencae 0:5448330e1a33 181 serial.printf("Writing to file....");
eencae 0:5448330e1a33 182 for(int i = 1; i <= 50; i++) {
eencae 0:5448330e1a33 183 float dummy = 1000.0F/i; // dummy variable
eencae 0:5448330e1a33 184 fprintf(fp, "%d,%f\n",i,dummy); // print formatted string to file (CSV)
eencae 0:5448330e1a33 185 }
eencae 0:5448330e1a33 186 serial.printf("Done.\n");
eencae 0:5448330e1a33 187 fclose(fp); // ensure you close the file after writing
eencae 0:5448330e1a33 188 }
eencae 0:5448330e1a33 189
eencae 0:5448330e1a33 190
eencae 0:5448330e1a33 191
eencae 0:5448330e1a33 192 ///////////////////////////////////////////////////
eencae 0:5448330e1a33 193 serial.printf("End of SD card example\n");
Lucyjungz 1:f911149acd35 194
Lucyjungz 1:f911149acd35 195 t1.attach(&t1out,5);
Lucyjungz 1:f911149acd35 196 while(1);
eencae 0:5448330e1a33 197 }
eencae 0:5448330e1a33 198
eencae 0:5448330e1a33 199 void delete_file(char filename[])
eencae 0:5448330e1a33 200 {
eencae 0:5448330e1a33 201 serial.printf("Deleting file '%s'...",filename);
eencae 0:5448330e1a33 202 FILE *fp = fopen(filename, "r"); // try and open file
eencae 0:5448330e1a33 203 if (fp != NULL) { // if it does open...
eencae 0:5448330e1a33 204 fclose(fp); // close it
eencae 0:5448330e1a33 205 remove(filename); // and then delete
eencae 0:5448330e1a33 206 serial.printf("Done!\n");
eencae 0:5448330e1a33 207 }
eencae 0:5448330e1a33 208 // if we can't open it, it doesn't exist and so we can't delete it
eencae 0:5448330e1a33 209 }