Differences

This shows you the differences between two versions of the page.

--- sdk:gps2serial [2020/03/25 10:02]
fachet
+++ sdk:gps2serial [2020/03/25 12:21] (current)
fachet
@@ Line 5: / Line 5: @@
 ===== Script Summary  =====
-This Script connects to the GPS server via tcp. T
+This Script connects to the GPS server and forwards the data to the first serial interface.
+GPS must be enabled and in RAW mode.
 The default serial parameters for GPS are 4800 8N1 (8 databit, no parity, 1 stop bit, no flow controll). This parameter can be configured at the begining of the script.
 Please use if possible a higher data rate e.g. 115200.
@@ Line 25: / Line 25: @@
 Detailed step by step instructions how to install a sdk script can be found [[sdk:testing-the-sms-send-script|on this wiki page]]
-Please combine this script with the **"system-startup" trigger** to a job
+Please combine this script with the **"system-startup" trigger** to get a job.
-This script does not need any configuration, but you can define the serial parameter to your needs:
-<code c>
-/* Serial Baud Rate 4800, 9600, 19200, 38400, 57600, 115200 */
-SER_SPEED=4800;
-/*  number of data bits (5, 6, 7, 8) */
-SER_DATABIT=8;
-/*  number of stop bits (1, 2) */
-SER_STOPBIT=1;
-/* parity (0=no parity, 1=odd parity, 2=even parity) */
-SER_PARITY=0;
-/*  flow control (0=none, 1=xon/xoff, 2=hardware) */
-SER_FLOW=0;
-/*  name of the Serial Interface (Only changed if your device has more then one serial Interface (NB3710) */
-DEV = "SERIAL1";
-</code>
-===== Testing ======
-To be sure the script is running you can take a look on the [[http://simulator.netmodule.com/logs.php.html|System Log]] and watch for outputs like:
-<code bash>
-Apr 23 00:53:41 NB2700 user.info sdkhost[2283]: testrun: starting serial
-Apr 23 00:53:42 NB2700 user.info sdkhost[2283]: testrun: Connecting to GPS daemon
-Apr 23 00:53:42 NB2700 user.info sdkhost[2283]: testrun: Requesting raw NMEA stream
-Apr 23 00:53:42 NB2700 user.info sdkhost[2283]: testrun: Successfully connected to GPS daemon
-Apr 23 00:53:42 NB2700 user.info sdkhost[2283]: testrun: Processing NMEA data
-Apr 23 00:53:42 NB2700 user.info sdkhost[2283]: testrun: Unable to send message to via Serial
-Apr 23 00:54:08 NB2700 user.info sdkhost[2283]: testrun: starting serial
-Apr 23 00:54:09 NB2700 user.info sdkhost[2283]: testrun: Connecting to GPS daemon
-Apr 23 00:54:09 NB2700 user.info sdkhost[2283]: testrun: Requesting raw NMEA stream
-Apr 23 00:54:09 NB2700 user.info sdkhost[2283]: testrun: Successfully connected to GPS daemon
-Apr 23 00:54:09 NB2700 user.info sdkhost[2283]: testrun: Processing NMEA data
-</code>
 ===== The Script =====
@@ Line 69: / Line 31: @@
 <code c gps-to-serial.are>
-/* DESC: This script sends the local GPS NMEA stream (incl. serial/checksum) to a remote UDP server.
- * Copyright (C) 2013-2015 NetModule AG, Switzerland
- */
 /* Options to configure by user*/
 SER_SPEED = 4800;	/* Serial Baud Rate 4800, 9600, 19200, 38400, 57600, 115200 */
@@ Line 82: / Line 38: @@
 SER_FLOW = 0;		/*  flow control (0=none, 1=xon/xoff, 2=hardware) */
 DEV = "SERIAL1";	/*  name of the Serial Interface */
 /* GPS Deamon Parameters */
 HOST = "127.0.0.1";	/* local host */
-PORT = nb_config_get("gpsd.0.port");
+PORT = (int) nb_config_get("gpsd.0.port");
-void usage()
+void usage() {
-{
+    nb_syslog("Usage: gps2serial.are\n");
-    nb_syslog("Usage: gps2serial.are");
     exit(1);
 }
 int start_serial() {
-    /* set attributes */
+	if (nb_config_get("serial.0.status") != "2") {
+    	nb_syslog("serial not assinged to SDK\n");
+        exit(2);
+    }
+    // printf("set serial attributes\n");
     if ((rc = nb_serial_setattr(DEV, SER_SPEED, SER_DATABIT, SER_STOPBIT, SER_PARITY, SER_FLOW)) != 0) {
-        nb_syslog("ERROR: unable to set serial attributes (rc %d) to %s", rc, DEV);
+        nb_syslog("ERROR: unable to set serial attributes (rc %d) to %s\n", rc, DEV);
         return -1;
     }
-    /* open serial port */
+    // nb_syslog("Open serial device %s\n", DEV);
     if ((fd = nb_serial_open(DEV)) < 0) {
-        nb_syslog("ERROR: can't open serial port %s", DEV);
+        nb_syslog("ERROR: can't open serial port %s\n", DEV);
         return -1;
+    }
     return fd;
 }
-int connect_gpsd()	/* tries infinetively to connect to gpsd - socket returned */
+int connect_gpsd()
 {
+    if (nb_config_get("gpsd.0.status") != "1" || nb_config_get("gpsd.0.cmode") != "1") {
+    	nb_syslog("gpsd not enabled or not in RAW mode\n");
+        exit(3);
+    }
     while (1) {
         sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
         if (sock < 0)
-            nb_syslog("Unable to create socket");
+            nb_syslog("Unable to create socket\n");
         else if (connect(sock, HOST, PORT) < 0){
-            nb_syslog("Could not connect to GPS daemon");
+            nb_syslog("Could not connect to GPS daemon\n");
             close(sock);
         } else {
-            nb_syslog("Successfully connected to GPS daemon");
+            nb_syslog("Successfully connected to GPS daemon\n");
             return sock;
         }
@@ Line 123: / Line 87: @@
     /* no return */
 }
 nb_syslog("starting serial");
-serial_fd = start_serial();
+if ((serial_fd = start_serial()) < 0 ) {
-if (serial_fd < 0 ) {
+    nb_syslog("Could not start serial, exiting\n");
-    nb_syslog("Could not start serial, exiting");
+    exit(4);
-    exit(1);
 }
+// printf("connect to gpsd\n");
 gpsd = connect_gpsd();
-nb_syslog("Processing NMEA data");
+// printf("Processing NMEA data\n");
 while (1) {
-    /* wait for socket data  */
+    // printf("wait for data\n");
-    if ((rv = select(gpsd, 3)) == 0)
+    if ((rv = select(gpsd, 10)) == 0) {
+		// printf("Select timed out\n");
       	continue;
-    if (rv < 0) {
+	}
-        nb_syslog("Receive failed, re-connecting to GPS daemon");
+    if (rv < 0 || ( data = recv(gpsd)) == "") {
+        nb_syslog("Select or recv failed, re-connecting to GPS daemon\n");
+	close(gpsd);
         if ((gpsd = connect_gpsd()) < 0)
-            exit(3);	/* can't connect */
+            exit(5);	/* can't connect */
         continue;
     }
-    data = recv(gpsd);
     len = strlen(data);
+	// printf("write data to serial <%s> [%i]\n", data, len);
     if (write(serial_fd, data, len) != len)
-       nb_syslog("Unable to send message via Serial, data %s, len: %i", data, len);
+       nb_syslog("Unable to send message via Serial, data %s, len: %i\n", data, len);
 }
 close(gpsd);
 close(serial_fd);
-exit(4);
+exit(6);
 </code>

User Tools

Site Tools

Differences

Page Tools