Revision 0:615f7fbcd604, committed 2011-08-24

Comitter:

bouguereau

Date:

Wed Aug 24 09:46:22 2011 +0000

Commit message:

Changed in this revision

diff -r 000000000000 -r 615f7fbcd604 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Aug 24 09:46:22 2011 +0000
@@ -0,0 +1,116 @@
+#include "mbed.h"
+#include "CAN.h"
+ 
+ Ticker ticker;
+ 
+ DigitalOut led1(LED1);
+ DigitalOut led2(LED2);
+ DigitalOut led3(LED3);
+ DigitalOut led4(LED4);
+ 
+ LocalFileSystem local("local");
+ 
+ // CAN_RS pin at Philips PCA82C250 can bus controller.
+ // activate transceiver by pulling this pin to GND.
+ // (Rise and fall slope controlled by resistor R_s)
+ // (+5V result in tranceiver standby mode)
+ // For further information see datasheet page 4
+ DigitalOut can_Pca82c250SlopePin(p28);
+  
+ // second can controller on these pins. Not used here.
+ CAN can2(p9, p10);
+ 
+ // We use can on mbed pins 29(CAN_TXD) and 30(CAN_RXD).
+ CAN can1(p30, p29);
+
+/* void send1() {
+     static char counter1 = 0;
+     if (can1.write(CANMessage(0x200, &counter1, 1))) {
+         printf("CanTx--> id: 0x200  dlc: 1  data: %x\n\r", counter1);
+         counter1++;
+     }
+     // toggle led1 after every transmission
+     led1 = !led1;
+ }*/
+
+/* void send2() {
+     static char counter2 = 0;
+     if (can2.write(CANMessage(0x300, &counter2, 1))) {
+         printf("CanTx--> id: 0x300  dlc: 2  data: %x\n\r", counter2);
+         counter2++;
+     }
+     // toggle led2 after every transmission
+     led2 = !led2;
+ }*/
+
+ void send() {
+     static char counter = 0;
+     if (can2.write(CANMessage(0x300, &counter, 1))) {
+         printf("CanTx--> id: 0x300  dlc: 2  data: %x\n\r", counter);
+         counter++;
+     }
+     if (can1.write(CANMessage(0x200, &counter, 2))) {
+         printf("CanTx--> id: 0x300  dlc: 2  data: %x\n\r", counter);
+         counter++;
+     }
+     // toggle led2 after every transmission
+     led2 = !led2;
+ }
+
+ int main() {
+ 
+  FILE *test1 = fopen("/local/test1.txt", "w");
+  FILE *test2 = fopen("/local/test2.txt","w");
+ 
+  bool flag1 = false;
+  bool flag2 = false;
+  int i =0 ;
+
+     // 500kbit/s
+     can1.frequency(500000);
+     can2.frequency(500000);
+     // activate external can transceiver
+     can_Pca82c250SlopePin = 0;
+     // every 500ms
+     ticker.attach(&send, 0.5);     
+     // create message object for message reception
+   //  CANMessage can_MsgRx;
+        
+    CANMessage can_MsgRx1;            
+    CANMessage can_MsgRx2;  
+ //------------------------RECEPTION--------------------------------------\\        
+   while(i<10)
+   {
+
+         while (flag1!=true)
+        
+
+             // send received messages to the pc via serial line (9k6, 8n1)
+                 if (can1.read(can_MsgRx1))
+                {
+                      led3 = !led3;
+                      flag1 = true;
+                }
+             
+        while ( flag2!=true )    
+        
+                 if (can2.read(can_MsgRx2))
+                {
+                      led4 = !led4;
+                      flag2 = true;
+                }
+      
+       
+        
+      
+       fprintf(test1,"%d-%d-%c%c%c%c%c%c%c%c\r",can_MsgRx1.len,can_MsgRx1.id,can_MsgRx1.data[0],can_MsgRx1.data[1],can_MsgRx1.data[2],can_MsgRx1.data[3],can_MsgRx1.data[4],can_MsgRx1.data[5],can_MsgRx1.data[6],can_MsgRx1.data[7]);
+       fprintf(test2,"%d-%d-%c%c%c%c%c%c%c%c\r",can_MsgRx2.len,can_MsgRx2.id,can_MsgRx2.data[0],can_MsgRx2.data[1],can_MsgRx2.data[2],can_MsgRx2.data[3],can_MsgRx2.data[4],can_MsgRx2.data[5],can_MsgRx2.data[6],can_MsgRx2.data[7]);
+       flag1 = false ;
+       flag2 = false ;
+       i++;
+    }  
+    
+       
+       fclose(test1);
+       fclose(test2);
+}

diff -r 000000000000 -r 615f7fbcd604 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Aug 24 09:46:22 2011 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912