Naoya Takamura / C027_Support

C027_SupportTest_xively_locationで使用しているC027用ライブラリ

Fork of C027_Support by u-blox

下記のプログラムC027_SupportTest_xively_locationで使用しているC027用ライブラリです。

Import programC027_SupportTest_xively_location

インターフェース2014年10月号のu-blox C027で3G通信する記事で使用したプログラム。　　 CQ publishing Interface 2014.10 issue, C027 3G test program.

Last commit 28 Jul 2014 by Naoya Takamura

オリジナルのライブラリは下記を参照してください。

Import libraryC027_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.

Last commit 20 Apr 2017 by u-blox

Diff: GPS.cpp

Revision:
74:208e3e32d263
Parent:
46:8ce9169e0747
Child:
75:ce6e12067d0c
--- a/GPS.cpp	Thu May 15 08:25:45 2014 +0000
+++ b/GPS.cpp	Thu May 15 22:20:42 2014 +0000
@@ -1,6 +1,26 @@
 #include "mbed.h"
 #include <ctype.h>
 #include "GPS.h"
+#include "Relax.h"
+#ifdef TARGET_UBLOX_C027
+ #include "C027_api.h"
+#endif
+
+GPSParser::~GPSParser(void) 
+{ 
+    powerOff(); 
+#ifdef TARGET_UBLOX_C027
+    if (_onboard)
+         c027_gps_powerOff();
+#endif
+}
+    
+void GPSParser::powerOff(void)
+{
+    // set the gps into backup mode using the command RMX-LPREQ
+    struct { unsigned long dur; unsigned long flags; } msg = {0/*endless*/,0/*backup*/};
+    sendUbx(0x02, 0x41, &msg, sizeof(msg));
+}
 
 int GPSParser::_getMessage(Pipe<char>* pipe, char* buf, int len)
 {
@@ -104,13 +124,6 @@
     return _send(buf, len);
 }
 
-void GPSParser::powerOff(void)
-{
-    // set the gps into backup mode using the command RMX-LPREQ
-    struct { unsigned long dur; unsigned long flags; } msg = {0/*endless*/,0/*backup*/};
-    sendUbx(0x02, 0x41, &msg, sizeof(msg));
-}
-
 int GPSParser::sendNmea(const char* buf, int len)
 {
     char head[1] = { '$' };
@@ -238,6 +251,26 @@
             SerialPipe(tx, rx, rxSize, txSize)
 {
     baud(baudrate);
+#ifdef TARGET_UBLOX_C027
+    _onboard = (tx == GPSTXD) || (rx == GPSRXD);
+    if (_onboard)
+        c027_gps_powerOn(); 
+#endif
+}
+
+bool GPSSerial::init(void)
+{
+    // send a byte to wakup the device again
+    putc(0);
+    // wait until we get some bytes
+    int size = _pipeRx.size();
+    int i = 30;
+    while (i--) {
+        RELAX_MS(10);
+        if(size != _pipeRx.size())
+            break;
+    }   
+    return (i >= 0);
 }
 
 int GPSSerial::getMessage(char* buf, int len)
@@ -261,18 +294,20 @@
             _i2cAdr(i2cAdr)
 {
     frequency(100000);
-    found = false;
+#ifdef TARGET_UBLOX_C027
+    _onboard = (sda == GPSSDA) && (scl == GPSSCL);
+    if (_onboard)
+        c027_gps_powerOn(); 
+#endif
 }
 
-bool GPSI2C::detect(void)
+bool GPSI2C::init(void)
 {
-    if (!found)
-    {
-        int w = I2C::write(_i2cAdr,&REGSTREAM,sizeof(REGSTREAM));
-        if (w == 0)
-            found = true;
-    }
-    return found;
+    DigitalOut pin(GPSINT, 0);
+    wait_us(1);
+    pin = 1;
+    RELAX_MS(100);
+    return !I2C::write(_i2cAdr,&REGSTREAM,sizeof(REGSTREAM));
 }
 
 int GPSI2C::getMessage(char* buf, int len)
@@ -294,7 +329,6 @@
     {
         if (!I2C::write(_i2cAdr,&REGSTREAM,sizeof(REGSTREAM),true))
             sent = send(buf, len);
-        found = (len == sent);
         stop();
     }
     return sent;
@@ -305,7 +339,6 @@
     int sent = 0;
     if (!I2C::write(_i2cAdr,&REGSTREAM,sizeof(REGSTREAM),true))
         sent = GPSParser::sendNmea(buf, len);
-    found = (len == sent);
     stop();
     return sent;
 }
@@ -315,7 +348,6 @@
     int sent = 0;
     if (!I2C::write(_i2cAdr,&REGSTREAM,sizeof(REGSTREAM),true))
         sent = GPSParser::sendUbx(cls, id, buf, len);
-    found = (len == sent);
     I2C::stop();
     return sent;
 }
@@ -336,12 +368,8 @@
                 !I2C::read(_i2cAdr,buf,size)) {
                 read = size;
             }
-            else 
-                found = false;
         }
     }
-    else 
-        found = false;
     return read;
 }