Stephen Dickey / Mbed 2 deprecated C027_ModemTransparentUSBCDC_revb

For RevB MBED Hardware, with the new boot sequence. This example establishes a transparent link between the mbed USB CDC port and the modem (LISA) on the C027. You can use it to use the standard u-blox tools such as m-center or any terminal program. These tools can then connect to the serial port and talk directly to the modem. Baudrate should be set to 115200 baud and is fixed. m-center can be downloaded from u-blox website following this link: http://www.u-blox.com/en/evaluation-tools-a-software/u-center/m-center.html

Dependencies:   C027-REVB UbloxUSBModem mbed

Diff: main.cpp

Revision:
2:c4ad86683060
Parent:
1:15b5edb4a91f
--- a/main.cpp	Fri Dec 13 23:37:54 2013 +0000
+++ b/main.cpp	Sat Dec 14 00:24:59 2013 +0000
@@ -1,93 +1,46 @@
 #include "mbed.h"
 #include "C027.h"
-#include "WANDongle.h"
-#include "USBSerialStream.h"
-#include "UbloxCDMAModemInitializer.h"
-#include "UbloxGSMModemInitializer.h"
-
-DigitalOut mdm_activity(LED);
 
-int main() 
-{
-    int led_toggle_count = 5;
+Ticker ticker;
+DigitalOut led1(LED);
+DigitalOut led2(LED1);
+CAN can1(CANRD, CANTD);
+Serial pc(USBTX, USBRX);
 
-    // the instantiation of the type, calls C027::C027
-    C027 c027;
-    
-    c027.mdmPower(true,false);
-    
-    // enable the GPS, and connect it 
-    // to the m3.
-    c027.gpsPower(true, false);
+char counter = 0;
 
-#if 0
-    while(1) {
-        mdm_activity = !mdm_activity;
-        wait(0.2);
-    }
-#else
-    while( led_toggle_count-- > 0 )
-    {
-        mdm_activity = !mdm_activity;
-        wait(0.2);
+void send() {
+    if(can1.write(CANMessage(1337, &counter, 1))) {
+        pc.printf("Message sent: %d\r\n", counter);
+        counter++;
     }
-#endif
-        
-    // open the mdm serial port
-    WANDongle mdmDongle;
-    USBSerialStream mdmStream(mdmDongle.getSerial(1/* the CDC usually 0 or 1, LISA-C requires CDC1*/));
-    USBHost* host = USBHost::getHostInst();
-    mdmDongle.addInitializer(new UbloxCDMAModemInitializer(host));
-    mdmDongle.addInitializer(new UbloxGSMModemInitializer(host));
-   
-    // open the PC serial port and (use the same baudrate)
-    Serial pc(USBTX, USBRX);
+    led1 = !led1;
+}
+
+int main() {
+
+    DigitalOut can_standby(CANS);
+    
+    // enable the CAN interface
+    //   take it out of standby
+    can_standby = 0;
+    
     pc.baud(MDMBAUD);
     
-    pc.printf( "M3->USB CDC connection ready\n");
-    
-    while (1)
-    {
-        uint8_t buf[64];
-        size_t len;
-        int i;
-        
-        if (!mdmDongle.connected())
-        {
-            mdmDongle.tryConnect();
+    pc.printf( "Starting CAN Testing\r\n");
+
+    CANMessage msg;
+    while(1) {
+
+        if(can1.read(msg)) {
+            pc.printf("Message received: %d\r\n", msg.data[0]);
+            led2 = !led2;
         }
-        else
-        {
         
-            // transfer data from pc to modem
-            len = mdmStream.space();
-            if (len>0)
-            {
-                if (len > sizeof(buf))
-                    len = sizeof(buf);
-                for (i = 0; (i < len) && pc.readable(); )
-                    buf[i++] = pc.getc();
-                if (OK == mdmStream.write(buf, i))
-                    /* do something? */;
-            }
-            // transfer data from modem to pc
-            len = mdmStream.available();
-            if ((len>0) && pc.writeable())
-            {
-                if (len > sizeof(buf))
-                    len = sizeof(buf);
-                if (OK == mdmStream.read(buf, &len, len))
-                {
-                    for (i = 0; (i < len); ) 
-                    {
-                        mdm_activity=!mdm_activity;
-                        pc.putc(buf[i++]);
-                    }
-                    
-                    // default the led to off 
-                    mdm_activity=0;
-                }
-            }
-        }
+        wait(0.2);
+        
+        send();
     }
 }
+
+