Revision 2:eeab69a684ad, committed 2018-01-23

Comitter:

pinofal

Date:

Tue Jan 23 10:14:58 2018 +0000

Parent:

1:ce08f1d8140c

Child:

3:d63922c90649

Commit message:

Serial Protocol PC-uC

Changed in this revision

--- a/main.cpp	Sat Jul 08 05:01:19 2017 +0000
+++ b/main.cpp	Tue Jan 23 10:14:58 2018 +0000
@@ -1,36 +1,57 @@
 #include "mbed.h"
 
-/*------------------------------------------------------------------------------
-Before to use this example, ensure that you an hyperterminal installed on your
-computer. More info here: https://developer.mbed.org/handbook/Terminals
+// dimensione del pacchetto di comunicazione tra PC e uC
+#define PACKETDIM 33
 
-The default serial comm port uses the SERIAL_TX and SERIAL_RX pins (see their
-definition in the PinNames.h file).
-
-The default serial configuration in this case is 9600 bauds, 8-bit data, no parity
-
-If you want to change the baudrate for example, you have to redeclare the
-serial object in your code:
-
+DigitalOut led(LED1);
 Serial pc(SERIAL_TX, SERIAL_RX);
 
-Then, you can modify the baudrate and print like this:
+// indice per i cicli
+int nIndex;
 
-pc.baud(115200);
-pc.printf("Hello World !\n");
-------------------------------------------------------------------------------*/
+// indice dell'array caRxPacket[]
+volatile int  nRxIndex;
+// carattere in arrivo dal PC
+volatile char caReadChar;
 
-DigitalOut led(LED1);
+// paccchetto ricevuto dal PC
+char caRxPacket[PACKETDIM];
+int nRxPacketSize;
 
-int main()
+void RxInterrupt(void)
 {
-    int i = 1;
-
-    printf("Hello World !\n");
+    // reset pacchetto ricevuto
+    nIndex=0;
+    for(nIndex=0;nIndex<PACKETDIM;nIndex++)
+    {
+        caRxPacket[nIndex]='\0';
+    }
+    
+    // ricevi caratteri su seriale, se disponibili   
+    while((pc.readable()))
+    {
+        pc.gets(caRxPacket,sizeof(caRxPacket));
+        nRxPacketSize = strlen(caRxPacket);
+        //pc.printf("*** pc.readable = %2d \n\r",nRxPacketSize); 
+        //pc.scanf("%s", &caRxPacket);
+        //+++pc.putc(pc.getc());             // read data from UART
+        
+    }
+    //+++pc.printf("%s",caRxPacket); 
+    pc.printf("You also say goodbye to yours tk"); 
+}
 
-    while(1) {
-        wait(1); // 1 second
+int main() 
+{
+    // configura velocità della comunicazione seriale su USB-VirtualCom e invia messaggio di benvenuto
+    //pc.baud(921600); //921600 bps
+    pc.baud(256000); //9600 bps
+    //pc.printf("*** SineWave Generation ***\n\r");
+       
+    pc.attach(&RxInterrupt,Serial::RxIrq);
+    
+    while(true)
+    {
         led = !led; // Toggle LED
-        printf("This program runs since %d seconds.\n", i++);
-    }
-}
+    }   
+}
\ No newline at end of file