u-blox / C027_Support

support library for C027 helper functions for Buffer Pipes, Buffered Serial Port (rtos capable) and GPS parsing. It includes modem APIs for USSD, SMS and Sockets.

Dependents:   HTTPClient_Cellular_HelloWorld Cellular_HelloMQTT MbedSmartRestMain Car_Bon_car_module ... more

This library is intended to be used with u-blox products such as the C027 or a shield with u-blox cellular and GPS modules like the cellular and positioning shield from Embedded Artist.

For 2G/GSM and 3G/UMTS you need to:

  • have a SIM card and know its PIN number
  • need to know you network operators APN setting These setting should be passed to the connect or init and join functions. You can also extend the APN database in MDMAPN.h.

For CDMA products you need to make sure that you have provisioned and activated the modem with either Sprint or Verizon.

Files at this revision

API Documentation at this revision

Revision 4:c959dd4c5fe8, committed 2013-10-25

Comitter:
mazgch
Date:
Fri Oct 25 17:50:17 2013 +0000
Parent:
3:c7cd4887560d
Child:
5:5362073f2689
Commit message:
small fix

Changed in this revision

GPS.cpp Show annotated file Show diff for this revision Revisions of this file
GPS.h Show annotated file Show diff for this revision Revisions of this file 
--- a/GPS.cpp	Fri Oct 25 09:45:55 2013 +0000
+++ b/GPS.cpp	Fri Oct 25 17:50:17 2013 +0000
@@ -35,6 +35,7 @@
     pipe->start();
     if (++ix > len)                     return WAIT;
     if ('$' != pipe->next())            return NOT_FOUND;
+    // this needs to be extended by crc checking 
     for (;;)
     {
         if (++ix > len)                 return WAIT;
@@ -75,6 +76,11 @@
     return o;
 }
 
+int GPSParser::send(const char* buf, int len)
+{
+    return _send(buf, len);
+}
+
 int GPSParser::sendNmea(const char* buf, int len)
 {
     char head[1] = { '$' };
@@ -83,11 +89,11 @@
     int crc = 0;
     for (i = 0; i < len; i ++)
         crc ^= *buf++;
-    i  = send(head, sizeof(head));
-    i += send(buf, len);
+    i  = _send(head, sizeof(head));
+    i += _send(buf, len);
     tail[1] = toHex[(crc > 4) & 0xF0];
     tail[2] = toHex[(crc > 0) & 0x0F];
-    i += send(tail, sizeof(tail));
+    i += _send(tail, sizeof(tail));
     return i;
 }
 
@@ -108,11 +114,11 @@
         ca += ((char*)buf)[i];
         cb += ca;
     }
-    i  = send(head, sizeof(head));
-    i += send(buf, len);
+    i  = _send(head, sizeof(head));
+    i += _send(buf, len);
     crc[0] = ca & 0xFF;
     crc[1] = cb & 0xFF;
-    i += send(crc,  sizeof(crc));
+    i += _send(crc,  sizeof(crc));
     return i;
 }
 
@@ -209,7 +215,7 @@
     return _pipe.next(); 
 }
 
-int GPSSerial::send(const void* buf, int len)   
+int GPSSerial::_send(const void* buf, int len)   
 { 
     for (int i = 0; i < len; i ++)
         putc(((char*)buf)[i]); 
@@ -246,6 +252,19 @@
     return _getMessage(&_pipe, buf, len);   
 }
 
+int GPSI2C::send(const char* buf, int len)
+{
+    int sent = 0;
+    if (len) 
+    {
+        if (!I2C::write(GPSADR,&REGSTREAM,sizeof(REGSTREAM),true))
+            sent = _send(buf, len);
+        found = len == sent;
+        stop();
+    }
+    return sent;
+}
+
 int GPSI2C::sendNmea(const char* buf, int len)
 { 
     int sent = 0;
@@ -298,7 +317,7 @@
     return _pipe.next(); 
 }
 
-int GPSI2C::send(const void* buf, int len)
+int GPSI2C::_send(const void* buf, int len)
 { 
     return !I2C::write(GPSADR,(const char*)buf,len,true) ? len : 0; 
 }

--- a/GPS.h	Fri Oct 25 09:45:55 2013 +0000
+++ b/GPS.h	Fri Oct 25 17:50:17 2013 +0000
@@ -17,8 +17,9 @@
     #define PROTOCOL(x) (x & 0xFF0000)
 
     virtual int getMessage(char* buf, int len) = 0; 
-    virtual int sendNmea(const char* buf, int len) = 0;
-    virtual int sendUbx(unsigned char cls, unsigned char id, const void* buf, int len) = 0;
+    virtual int send(const char* buf, int len);
+    virtual int sendNmea(const char* buf, int len);
+    virtual int sendUbx(unsigned char cls, unsigned char id, const void* buf, int len);
     
     static const char* findNmeaItemPos(int ix, const char* start, const char* end);
     static bool getNmeaItem(int ix, char* buf, int len, double& val);
@@ -28,7 +29,7 @@
     static int _getMessage(Pipe<char>* pipe, char* buf, int len);
     static int _parseNmea(Pipe<char>* pipe, int len);
     static int _parseUbx(Pipe<char>* pipe, int len);
-    virtual int send(const void* buf, int len) = 0;
+    virtual int _send(const void* buf, int len) = 0;
     static const char toHex[16];
 };
 
@@ -42,7 +43,7 @@
 protected:
     void serialRxIrq(void);
     virtual char next(void);
-    virtual int send(const void* buf, int len);
+    virtual int _send(const void* buf, int len);
     Pipe<char> _pipe;
 };
 
@@ -53,11 +54,12 @@
     bool detect(void);
     
     virtual int getMessage(char* buf, int len);
+    virtual int send(const char* buf, int len);
     virtual int sendNmea(const char* buf, int len);
     virtual int sendUbx(unsigned char cls, unsigned char id, const void* buf, int len);
 protected:
     virtual char next(void);
-    virtual int send(const void* buf, int len);
+    virtual int _send(const void* buf, int len);
     int _get(char* buf, int len);                 // read the NMEA or UBX stream
     
     Pipe<char> _pipe;