DCS_TEAM / GSM_Library

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Fork of GSM_Library by Danilo Bustamante

GSMLibrary.h@29:bc5f53f2922a, 2015-04-25 (annotated)

Committer:
es_marble
Date:
Sat Apr 25 15:39:00 2015 +0000
Revision:
29:bc5f53f2922a
Parent:
24:7d2ff444d6d8
Child:
31:a1e9fd23eb6a
Finish adding comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
danilob 0:41904adca656 1 #ifndef GSMLIBRARY_H
danilob 0:41904adca656 2 #define GSMLIBRARY_H
danilob 0:41904adca656 3
danilob 0:41904adca656 4 #include "mbed.h"
es_marble 24:7d2ff444d6d8 5
es_marble 29:bc5f53f2922a 6 #define TIME_CONST 2 //Specify length of each GSM tick (currently 1.8 seconds but we rounded up to 2 to simplify calculations)
es_marble 24:7d2ff444d6d8 7 #define SECONDS_TIMEOUT 30
es_marble 29:bc5f53f2922a 8 #define SMS_END_CHAR "\x1A" //Character that must be appended to end of text message before it will be sent
es_marble 29:bc5f53f2922a 9 #define SMS_ESCAPE_CHAR "\x1A" //Character that can be appended to end of text message to abort sending it
danilob 0:41904adca656 10
danilob 0:41904adca656 11 enum gsm_states{GSM_INITIALIZE,
es_marble 29:bc5f53f2922a 12 GSM_AT_OK, //Make sure communication is established with GSM
es_marble 29:bc5f53f2922a 13 GSM_AT_CSQ, //Check signal strength
es_marble 29:bc5f53f2922a 14 GSM_AT_CREG, //Check if phone is connected to network
es_marble 24:7d2ff444d6d8 15 GSM_AT_CNMI, //Turn off incoming SMS notifications
es_marble 29:bc5f53f2922a 16 GSM_AT_CMGF, //Change to text message mode
es_marble 29:bc5f53f2922a 17 GSM_READ_MSG, //Check for new messages.
es_marble 29:bc5f53f2922a 18 GSM_AT_CMGS, //Input phone number and indicate beginning of SMS message body
es_marble 29:bc5f53f2922a 19 GSM_AT_SENDSMS, //Write message, finish with SMS_END_CHAR
es_marble 29:bc5f53f2922a 20 GSM_DEL_R_MSGS //Delete unread messages (if present)
danilob 0:41904adca656 21 };
danilob 0:41904adca656 22
danilob 0:41904adca656 23 //GSM state machine
danilob 0:41904adca656 24 void gsm_tick();
es_marble 16:6807d437cd48 25 bool gsm_timeOut();
es_marble 24:7d2ff444d6d8 26 void gsm_printState();
es_marble 16:6807d437cd48 27 void gsm_nextStateLogic();
es_marble 16:6807d437cd48 28 void gsm_mealyOutputs();
danilob 0:41904adca656 29
danilob 0:41904adca656 30 //Initialize DMA data transfer, and UART3.
danilob 0:41904adca656 31 void gsm_initialize();
danilob 0:41904adca656 32
es_marble 29:bc5f53f2922a 33 //returns 1 for ready to send again, 0 for busy.
danilob 17:360afa1e6809 34 bool gsm_ready();
danilob 17:360afa1e6809 35
es_marble 24:7d2ff444d6d8 36 //Have the GSM send data - L = long, S = short, hh/mm/ss for time, "lat ns" for latitute, "lon we" for longitude
es_marble 24:7d2ff444d6d8 37 void gsm_send_data(float L, float Lref, float S, float Sref, int hh, int mm, int ss, float lat, char ns, float lon, char we);
danilob 0:41904adca656 38
es_marble 29:bc5f53f2922a 39 //Brings state machine back to initialize state (notice this is a bit different than the initialize function)
es_marble 29:bc5f53f2922a 40 //This will set flags to their initial values and prepare gsm to start anew.
es_marble 24:7d2ff444d6d8 41 void gsm_reset();
danilob 0:41904adca656 42
es_marble 29:bc5f53f2922a 43 //For debugging: print registers related to DMA and UART setup
es_marble 29:bc5f53f2922a 44 void print_registers();
danilob 0:41904adca656 45
danilob 0:41904adca656 46 #endif