Diff: main.cpp

Revision:

0:78752077cc25

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Nov 09 04:59:01 2011 +0000
@@ -0,0 +1,195 @@
+// reference : http://mbed.org/users/pangsk/programs/ecu_reader/
+// Only read CAN-bus data, (not send any data)
+// v1.0
+
+/*
+
+mbed Can-Bus demo
+
+This program is to demonstrate the CAN-bus capability of the mbed module.
+
+http://www.skpang.co.uk/catalog/product_info.php?products_id=741
+
+v1.0 July 2010
+
+********************************************************************************
+
+WARNING: Use at your own risk, sadly this software comes with no guarantees.
+This software is provided 'free' and in good faith, but the author does not
+accept liability for any damage arising from its use.
+
+********************************************************************************
+
+
+*/
+
+#include "mbed.h"
+#include "ecu_reader.h"
+#include "globals.h"
+#include "TextLCD.h"
+#include "SDFileSystem.h"
+
+//GPS gps(p28, p27);
+TextLCD lcd(p24, p26, p27, p28, p29, p30); // rs, e, d0, d1, d2, d3, for starboard orange
+SDFileSystem sd(p5, p6, p7, p8, "sd"); //for starboard orange
+
+/*DigitalIn click(p21);   // Joystick inputs
+DigitalIn right(p22);
+DigitalIn down(p23);
+DigitalIn left(p24);
+DigitalIn up(p25);*/
+
+ecu_reader obdii(CANSPEED_500);     //Create object and set CAN speed
+//void gps_demo(void);
+void sd_demo(void);
+//Timer CANTimer;
+Timer CANTimer2;
+
+int main() {
+    
+//    char buffer[20];
+ 
+    lcd.locate(0,0);                // Set LCD cursor position
+    lcd.printf("CAN-Bus demo");
+    
+    lcd.locate(0,1);
+    lcd.printf("www.skpang.co.uk");
+    pc.baud(460800);
+    pc.printf("\n\rCAN-bus demo...");
+    
+    wait(3);
+    lcd.cls();
+    
+
+/*    while(1)    // Wait until option is selected by the joystick
+    {
+   
+        if(down == 0) gps_demo();
+        if(left == 0) sd_demo(); 
+        if(up == 0) break;
+        
+    }*/
+
+    while(1) {  // Main CAN loop
+        led2 = 1;
+        wait(0.1);
+        led2 = 0;
+        wait(0.1);
+        
+        CANTimer2.reset();
+        CANTimer2.start();
+        pc.printf("CANTimer.start\n");
+        
+        while (CANTimer2.read_ms() < TIMEOUT) {
+//            pc.printf("CANTimer.read_ms(): %dms ", CANTimer2.read_ms());
+            
+            // http://mbed.org/cookbook/OBDII-Can-Bus
+            
+            if (can2.read(can_MsgRx)) {
+                pc.printf("Message read\n\r");
+                
+                 //print message id
+                pc.printf("can_MsgRx.id: %x\n\r", can_MsgRx.id);
+
+                //print length of message
+                pc.printf("Hex: can_MsgRx.len: %x\n\r", can_MsgRx.len);
+
+                //print data[2]
+                //pc.printf("can_MsgRx.data[2]: %x\n\r", can_MsgRx.data[2]);
+
+                for (int i = 0; i < (int)can_MsgRx.len; i++) {
+                    pc.printf("can_MsgRx.data[%d]: %x\n\r", i, can_MsgRx.data[i]);
+                }
+            }
+        }
+    }
+
+
+
+
+        
+        
+/*        if(obdii.request(ENGINE_RPM,buffer) == 1)   // Get engine rpm and display on LCD
+        {
+            lcd.locate(0,0);
+            lcd.printf(buffer);
+        }   
+         
+        if(obdii.request(ENGINE_COOLANT_TEMP,buffer) == 1)
+        {
+            lcd.locate(9,0);
+            lcd.printf(buffer);
+        }
+        
+        if(obdii.request(VEHICLE_SPEED,buffer) == 1)
+        {
+            lcd.locate(0,1);
+            lcd.printf(buffer);
+        }
+     
+        if(obdii.request(THROTTLE,buffer) ==1 )
+        {
+            lcd.locate(9,1);
+            lcd.printf(buffer);          
+        }
+*/
+       
+}
+
+/*void gps_demo(void)
+{
+    lcd.cls();
+    lcd.printf("GPS demo");
+    lcd.locate(0,1);
+    lcd.printf("Waiting for lock");
+ 
+    wait(3);    
+    lcd.cls();
+   
+    while(1)
+    {
+      if(gps.sample()) {
+         lcd.cls();
+        lcd.printf("Long:%f", gps.longitude);
+           lcd.locate(0,1);
+        lcd.printf("Lat:%f", gps.latitude);
+            pc.printf("I'm at %f, %f\n", gps.longitude, gps.latitude);
+        } else {
+            pc.printf("Oh Dear! No lock :(\n");
+            lcd.cls();
+            lcd.printf("Waiting for lock");
+   
+        }
+    }
+ 
+}*/
+
+/*
+void sd_demo(void)
+{
+    lcd.cls();
+    lcd.printf("SD demo");
+    wait(2);      
+    lcd.cls();
+    
+    FILE *fp = fopen("/sd/sdtest2.txt", "w");
+    if(fp == NULL) {
+        lcd.cls();
+        lcd.printf("Could not open file for write\n");
+    }
+    fprintf(fp, "Hello fun SD Card World! testing 1234");
+    fclose(fp); 
+    lcd.locate(0,1);
+    lcd.printf("Writtern to SD card");
+        
+    while(1)
+    {
+        led2 = 1;
+        wait(0.1);
+        led2 = 0;
+        wait(0.1);
+   
+    }
+ 
+}
+*/
\ No newline at end of file