Diff: main.cpp

Revision:

0:aa765ec85271

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jun 05 19:13:19 2014 +0000
@@ -0,0 +1,78 @@
+#include "mbed.h"
+
+DigitalOut greenLed(LED_GREEN);
+DigitalOut redLed(LED_RED);
+
+Serial pc(USBTX, USBRX);
+Serial uart1(P1_8, P1_2);
+
+uint8_t buffer[256];
+uint16_t bufferIndex = 0;
+uint8_t data;
+uint32_t ledToggleTime;
+
+int main()
+{
+    pc.baud(115200);
+    pc.printf("\r\n\r\nProgram started\r\nType some text and press ENTER ...\r\n");
+    
+    memset(buffer, 0, sizeof(buffer));
+    redLed = 1;
+    ledToggleTime = 0;
+    
+    uart1.baud(115200);
+    pc.printf("Type text > "); // show the prompt
+    
+    for(;;)
+    {
+        while (uart1.readable() > 0)
+        {
+            pc.printf("\r\nreadable(): %d\r\n", uart1.readable());
+            
+            data = uart1.getc();
+            pc.printf("\r\n<<< [%02X]\r\n", data);
+        }
+        
+        while (pc.readable() > 0)
+        {
+            if (bufferIndex < sizeof(buffer))
+            {
+                redLed = 1; // turn off the red led
+                data = pc.getc();
+                
+                // wait for ENTER
+                if ((data == 0x0d) || (data == 0x0a))
+                {
+                    if (bufferIndex > 0)
+                    {
+                        pc.printf("\r\nGot it: %s\r\n", buffer);
+                        
+                        pc.printf("\r\n>>> %s\r\n", buffer);
+                        uart1.printf("%s", buffer);
+                        
+                        memset(buffer, 0, sizeof(buffer));
+                        bufferIndex = 0;
+                    }
+                    
+                    pc.printf("\r\nType text > "); // show the prompt
+                }
+                else
+                {
+                    buffer[bufferIndex++] = data;
+                    pc.putc(data);
+                }
+            }
+            else
+            {
+                redLed = 0; // turn on the red led
+            }
+        }
+
+        // toggle green led every 500 ms        
+        if ((us_ticker_read() - ledToggleTime)/1000 >= 500)
+        {
+            ledToggleTime = us_ticker_read();
+            greenLed = !greenLed;
+        }
+    }
+}