Import fx2lib into fx2lafw directly.

[sigrok-firmware-fx2lafw.git] / fx2lib / examples / timers / timers.c

diff --git a/fx2lib/examples/timers/timers.c b/fx2lib/examples/timers/timers.c
new file mode 100644 (file)
index 0000000..8ee69fd
--- /dev/null
+++ b/fx2lib/examples/timers/timers.c
@@ -0,0 +1,79 @@
+/**
+ * Copyright (C) 2010 Ubixum, Inc. 
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ **/
+
+#include <fx2regs.h>
+#include <fx2macros.h>
+#include <fx2ints.h>
+#include <lights.h>
+
+volatile bit d2;
+volatile bit d3;
+volatile bit d4;
+volatile bit d5;
+
+void timer0_isr() interrupt TF0_ISR {
+ d2 = !d2;
+ if (d2) { d2on(); } else { d2off(); }
+}
+
+void timer1_isr() interrupt TF1_ISR {
+ d3 = !d3;
+ if (d3) { d3on(); } else { d3off(); }
+}
+
+void timer2_isr() interrupt TF2_ISR {
+ d4 = !d4;
+ if (d4) { d4on(); } else { d4off(); }
+
+ CLEAR_TIMER2(); // This one is not done automatically!
+}
+
+
+void main(void)
+{
+    WORD counter=0;
+
+    SETCPUFREQ(CLK_12M);
+
+    // enable timer 0 and timer 1 to be 16 bit counters
+    TMOD = 0x11; 
+
+    // enable timer 2 to also be a 16 bit counter
+    T2CON = 0;
+    RCAP2L = 0; // reload values for t2
+    RCAP2H = 0; 
+
+    EA=1; // enable interrupts
+    ENABLE_TIMER0();
+    ENABLE_TIMER1();
+    ENABLE_TIMER2();
+    TR0=1; // start t0
+    TR1=1; // start t1 
+    TR2=1; // start t2
+
+    // and blink d5
+    while (TRUE) {
+        ++counter;
+        if (!counter) {
+            d5 = !d5;
+            if (d5) { d5off(); } else { d5on(); }
+        }
+    }
+}
+
+