Diff: main.cpp

Revision:

1:623f51ea713b

Parent:

0:f682dcf80f00

Child:

2:8d5a84fcf90c

--- a/main.cpp	Mon Feb 23 11:20:37 2015 +0000
+++ b/main.cpp	Mon Feb 23 15:57:49 2015 +0000
@@ -1,15 +1,44 @@
 #include "mbed.h"
 //Simple program allowing user to send messages from mbed COM out through UART to another UART COM.
 //Andrea Corrado
+//Updated 2015/02/23 Eric Gowland - Process on line termination.
+
+
 Serial pc(USBTX, USBRX); // tx, rx
 Serial uart (PTC17, PTC16);
 
+char* PARSE_TRIGGERS = "\r\n";
+int PARSE_TRIGGERS_LENGTH = 2;
+int MAX_BUFFER_SIZE = 128;
 
-int main()
-{
+bool isTriggerChar(char c);
+
+int main() {
+    char buffer[MAX_BUFFER_SIZE];
+    int pos = 0;
+    char thisChar = 0;
     while(1) {
         if (pc.readable()) {
-            uart.putc(pc.getc());
+            thisChar = pc.getc();
+            //Echo
+            pc.putc(thisChar);
+            //Buffer
+            buffer[pos++] = thisChar;
+            //If trigger or buffer overflow, output and reset buffer...
+            if(pos >= MAX_BUFFER_SIZE || isTriggerChar(thisChar)) {
+                pc.printf("\r\n");
+                uart.printf("%.*s\r\n", pos, buffer);
+                pos = 0;
+            }
         }
     }
 }
+
+bool isTriggerChar(char c) {
+    for (int i = 0; i < PARSE_TRIGGERS_LENGTH; i++) {
+        if(c == PARSE_TRIGGERS[i]) {
+            return true;
+        }
+    }
+    return false;
+}