Diff: main.cpp

Revision:

0:2c71706c23d3

Child:

1:dea224e5ad51

diff -r 000000000000 -r 2c71706c23d3 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Oct 01 20:43:30 2015 +0000
@@ -0,0 +1,34 @@
+/** Dragonfly DigitalOut and BusOut Example Program
+ *
+ * This program demonstrates how to write digital outputs using the
+ * MultiTech Dragonfly and MultiTech UDK2 hardware. The only
+ * additional hardware required is LEDs. Connect the LEDs between the
+ * bus pins and ground.
+ *
+ * Pins are active low, so 0V = 0 and 5V/3.3V = 1.
+ *
+ * This program blinks the D3 LED using a DigitalOut pin and writes
+ * to pins D9, D10, and D12 as a 3 pin bus.
+ */
+ 
+#include "mbed.h"
+ 
+int main() {
+    // write digital pins D9, D10, and D12 as a 3 pin bus
+    // the first pin is the LSB of the bus, the last is the MSB
+    BusOut bus(D9, D10, D12);
+    // pin D3 is connected to the LED
+    DigitalOut led(D3);
+    
+    int count = 0;
+    
+    while (true) {
+        printf("writing %d to bus\r\n", count);
+        bus = count++;
+        count %= 8;
+        
+        led = !led;
+        
+        wait_ms(500);
+    }
+}
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