Diff: CELL_CTRL/cell_ctrl.cpp

Revision:

0:924cb994fc16

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CELL_CTRL/cell_ctrl.cpp	Thu Oct 20 16:49:21 2016 +0000
@@ -0,0 +1,100 @@
+
+#include "cell_ctrl.h"
+
+//These are functions to connect the modem to a port, and to reset the modem.
+
+void cell_ctrl_init(Serial* io, Serial pc, char* buffer){
+     // Enable echo
+    io->printf("ATE1\r");
+    collectResponseString(io, buffer, BUFFER_SIZE, TIMEOUT_MS, 0);
+    pc.printf("%s", buffer);
+    
+    // Disable the forwarding of +++ to the actual data connection
+    io->printf("AT#SKIPESC=1\r");
+    collectResponseString(io, buffer, BUFFER_SIZE, TIMEOUT_MS, 0);
+    pc.printf("%s", buffer);
+    
+    // Flow control (none)
+    //io->printf("AT+IFC=2,2\r");
+    io->printf("AT+IFC=0,0\r");
+    collectResponseString(io, buffer, BUFFER_SIZE, TIMEOUT_MS, 0);
+    pc.printf("%s", buffer);
+    
+    io->printf("AT+CSQ\r");
+    collectResponseString(io, buffer, BUFFER_SIZE, TIMEOUT_MS, 0);
+    pc.printf("%s", buffer);
+    
+    io->printf("AT+CDV*22899\r");
+    collectResponseString(io, buffer, BUFFER_SIZE, TIMEOUT_MS, 0);
+    pc.printf("%s", buffer);
+    
+    // Config socket
+    io->printf("AT#SCFG=1,1,%i,%i,%i,1\r", 
+        PACKET_SIZE, 
+        int(INACTIVITY_TIMEOUT), 
+        int(CONNECTION_TIMEOUT));
+    collectResponseString(io, buffer, BUFFER_SIZE, TIMEOUT_MS, 0);
+    pc.printf("%s", buffer);
+
+    // Set context (ppp?)
+    io->printf("AT#SGACT=1,1\r");
+    collectResponseString(io, buffer, BUFFER_SIZE, 30000, 0);
+    pc.printf("%s", buffer);
+    
+    // Connect to TCP server
+    io->printf("AT#SD=1,0,%i,\"%s\",0,1,0\r", PORT, ADDRESS);
+    collectResponseString(io, buffer, BUFFER_SIZE, 30000, '\n');
+    pc.printf("%s", buffer);
+    
+    pc.printf("Entering message loop. Now in data mode.\r\n");
+    
+}
+
+void cell_ctrl_rst(Serial* io, Serial pc, char* buffer){
+    // Send escape sequence
+    wait(1.5);
+    io->printf("+++");
+    wait(1.5);
+    collectResponseString(io, buffer, BUFFER_SIZE, 15000, 0);
+    pc.printf("%s", buffer);
+   
+    // Get socket status
+    io->printf("AT#SS\r");
+    collectResponseString(io, buffer, BUFFER_SIZE, 1000, 0);
+    pc.printf("%s", buffer);
+    
+    // Reboot the modem
+    pc.printf("Performing hard reset of the modem and waiting 10 seconds. \r\n");
+    io->printf("AT#REBOOT\r");
+    collectResponseString(io, buffer, BUFFER_SIZE, 1000, 0);
+    pc.printf("%s", buffer);
+    
+    wait(10.0);
+    
+    pc.printf("Restarting the program...\r\n");
+    
+}
+
+bool collectResponseString(Serial* io, char* buffer, int size, int timeout_ms, char terminator) {
+    mbed::Timer tmr;
+    tmr.start();
+    int i = 0;
+    char byte;
+    bool notimeout = true;
+    while (i < size-1) {
+        if (tmr.read_ms() > timeout_ms) {
+            notimeout = false;
+            break;
+        }
+        if (io->readable()) {
+            byte = io->getc();
+            buffer[i] = byte;
+            i++;
+            if (byte == terminator) {
+                break;    
+            }
+        }
+    }
+    buffer[i] = '\0';
+    return notimeout;
+}
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