Diff: main.cpp

Revision:

0:6b0258d76fac

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Sep 13 08:54:10 2009 +0000
@@ -0,0 +1,50 @@
+// Basic example to control scratch with mbed
+// Copyright (c) 2008-2009 sford
+// Released under the MIT License: http://mbed.org/license/mit
+
+#include "mbed.h"
+
+Serial pc(USBTX, USBRX);
+DigitalOut led1(LED1);
+
+// The scratch IO
+AnalogIn pin15(p15);
+AnalogIn pin16(p16);
+AnalogIn pin17(p17);
+AnalogIn pin18(p18);
+AnalogIn pin19(p19);
+AnalogIn pin20(p20);
+DigitalIn pin13(p13);
+DigitalIn pin14(p14);
+
+/* The format
+ high byte (sent 1st)
+ [ 1 | c3:0 | d9:7 ]
+ low byte
+ [ 0 | d6:0 ]
+*/
+void send(int channel, int data) {
+    int high = 1 << 7
+             | (channel & 0xF) << 3
+             | ((data >> 7)& 0x7);
+    int low = data & 0x7F;
+    pc.putc(high);
+    pc.putc(low);
+}
+
+int main() {
+    pc.baud(38400);
+    while(1) {
+        pc.getc(); // wait for poll
+        led1 = !led1;
+        send(15, 4); // firmware
+        send(0, pin20 * 1023.0);
+        send(1, pin19 * 1023.0);
+        send(2, pin18 * 1023.0);
+        send(3, pin14 * 1023.0);
+        send(4, pin17 * 1023.0);
+        send(5, pin16 * 1023.0);
+        send(6, pin13 * 1023.0);                                
+        send(7, pin15 * 1023.0);
+    }
+}