Diff: can01.cpp

Revision:

0:d40cebe2b64e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/can01.cpp	Wed Aug 24 09:45:21 2011 +0000
@@ -0,0 +1,70 @@
+#include "can01.h"
+
+ Ticker ticker;
+ 
+ DigitalOut led1(LED1);
+ DigitalOut led2(LED2);
+ 
+ // 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 can1(p9, p10);
+ 
+ // We use can on mbed pins 29(CAN_TXD) and 30(CAN_RXD).
+ CAN can2(p30, p29);
+
+
+void tCan01 ::  send() 
+ {
+     static char counter = 0;
+     if (can2.write(CANMessage(0x200, &counter, 1))) {
+         printf("CanTx--> id: 0x200  dlc: 1  data: %x\n\r", counter);
+         counter++;
+     }
+     // toggle led1 after every transmission
+     led1 = !led1;
+ }
+
+
+void tCan01 :: ConfigurerCan2Envoie()
+{
+ char compteur=1;
+ // 500kbit/s
+ can2.frequency(10000);
+ // activate external can transceiver
+ can_Pca82c250SlopePin = 0;
+ // every 500ms
+ ticker.attach(&send, 0.5);
+ /// create message object for message reception
+ CANMessage can_MsgRx;
+ can2.write(CANMessage(0x200, &compteur, 1));
+ while (1) 
+ {
+ // send received messages to the pc via serial line (9k6, 8n1)
+    if (can2.read(can_MsgRx)) 
+    {
+        printf("CanRx--> id: 0x%x  dlc: %d  data: ", can_MsgRx.id, can_MsgRx.len);
+            for (char i=0; i<can_MsgRx.len; i++) 
+            {
+                printf("%x ", can_MsgRx.data[i]);
+            }
+            printf("\n\r");
+             // any incoming message: toggle led2
+             led2 = !led2;
+    }
+ }
+}
+
+/*void tcan01 ::Can1Recoit()
+{
+    static char msg=0;
+    if (can1.read(CANMessage(0x200,msg)))
+    {
+    printf("CanTx
+    }
+}*/
\ No newline at end of file