Diff: main.cpp

Revision:

15:e1fea7e2aff1

Parent:

14:8041c9b68406

Child:

16:96879e1c99f2

--- a/main.cpp	Sun Nov 23 15:37:45 2014 +0000
+++ b/main.cpp	Sun Nov 23 20:45:14 2014 +0000
@@ -5,19 +5,19 @@
 PC          pc(USBTX, USBRX, 921600);   // USB UART Terminal
 DW1000      dw(D11, D12, D13, D10, D14);     // SPI1 on Nucleo Board (MOSI, MISO, SCLK, CS, IRQ)
 
+const float timeunit = 1/(128*499.2e6);
 int i=0;
 bool starter = 1;
 bool ping = 0;
 char message[1024] = "";
 uint64_t timestamp_old = 0;
 
-//#define DEBUGSTRING
+//#define PINGPONG
 
 void Interrupthandler() {
     /*uint8_t frameready = 0;
     dw.readRegister(DW1000_SYS_STATUS, 1, &frameready, 1);
     pc.printf("Interrupt status: %X\r\n", frameready);*/
-    starter = 0;
     
     uint16_t framelength = 0;                                       // get framelength TODO: just for debugging of string
     dw.readRegister(DW1000_RX_FINFO, 0, (uint8_t*)&framelength, 2);
@@ -25,9 +25,10 @@
     framelength -= 2;
     
     char* receive = dw.receiveString();                             // receive a string
-    pc.printf("Received: %s %d   ", receive, framelength);
+    pc.printf("Received: \"%s\" %d ", receive, framelength);
     delete[] receive;
     
+# ifdef PINGPONG
     uint64_t status;
     dw.readRegister(DW1000_SYS_STATUS, 0, (uint8_t*)&status, 5);
     status &= 0xFFFFFFFFFF;                                      // only 40-Bit
@@ -38,8 +39,10 @@
     timestamp &= 0xFFFFFFFFFF;                                      // only 40-Bit
     uint64_t difference = timestamp - timestamp_old;
     timestamp_old = timestamp;
-    pc.printf("Timestamp: %lld\r\n", difference);
+    //pc.printf("Timestamp: %lld\r\n", difference);
+    pc.printf("Timestamp: %fs", difference*timeunit);       // TODO: gives some wrong values because of timer overflow
     
+    starter = 0;
     wait(1);            // TODO: ugly, never wait in interrupthandler!
     if (ping) {
         sprintf((char*)message, "PING! %d", i);
@@ -48,7 +51,8 @@
         sprintf((char*)message, "PONG! %d", i);
         dw.sendString(message);
     }
-    
+#endif
+    pc.printf("\r\n");
     dw.receiveFrame();
 }
 
@@ -71,37 +75,30 @@
     dw.writeRegister(DW1000_SYS_MASK, 1, &dataframereadyinterrupt, 1);
     
     dw.receiveFrame();
+# ifdef PINGPONG
     wait(3);
+# endif
     
     while(1) {
-        i++;
-# ifdef DEBUGSTRING                      // to make one node sender and one receiver
-        //message[i-1] = 'O';
-        //message[i] = '\0';
-        sprintf((char*)message, "HELLO WORLD! %d", i);
-        //if (i < 200)
-            pc.printf("%d Message: \"%s\" %d\r\n", i, message, strlen(message)+1);
-        //else
-            //pc.printf("%d Message: %d\r\n", i, strlen(message)+1);
+# ifndef PINGPONG
+        message[i] = 48+ (i%10);
+        message[i+1] = '\0';
+
+        pc.printf("%d Message: \"%s\" %d\r\n", i, message, strlen(message)+1);
+        wait(0.1);
+        char messagecheck[1024];
         dw.sendString(message);
-        
-        char messagecheck[1024];
+        wait(0.1);
         dw.readRegister(DW1000_TX_BUFFER, 0, (uint8_t*)messagecheck, strlen(message)+1);
-        //if (i < 200)
-            pc.printf("%d  Buffer: \"%s\" %d\r\n", i, messagecheck, strlen(messagecheck)+1);
-        //else
-            //pc.printf("%d  Buffer: %d\r\n", i, strlen(messagecheck)+1);
+        pc.printf("%d nBuffer: \"%s\" %d\r\n\r\n", i, messagecheck, strlen(messagecheck)+1);
+        wait(0.2);
+        
+        //return 0;
         /*for(int i=0; i<10; i++) {                                 // to control Voltage
             pc.printf("%d Voltage: %f\r\n", i, dw.getVoltage());
             wait(0.2);
         }*/
-        //if (i<27)
-            wait(1);
-        //else
-            //wait(3);
-#else
-        pc.printf("%d Waiting...  ", i);
-        
+#else   
         if (starter) {
             ping = 1;
             while (starter) {
@@ -111,14 +108,16 @@
             }
         }
         
-        
+        wait(1);
+# endif
+#if 0
+        pc.printf("%d Waiting...  ", i);
         uint64_t status;
         dw.readRegister(DW1000_SYS_STATUS, 0, (uint8_t*)&status, 5);
         status &= 0xFFFFFFFFFF;                                      // only 40-Bit
         pc.printf("Status: %010llX\r\n", status);
-        
-        wait(1);
-# endif
-        
+        wait(5);
+#endif
+        i++;
     }
 }
\ No newline at end of file