1 files changed, 48 insertions, 0 deletions
diff --git a/core/pwm.c b/core/pwm.c
new file mode 100644
index 0000000..2cc815c
--- /dev/null
+++ b/core/pwm.c
@@ -0,0 +1,48 @@
+/* *****************************************************************************
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  Created: 12/18/09 02:41:24
+ *  Copyright (c) 2009 Perry L. Hung. All rights reserved.
+ *
+ * ****************************************************************************/
+
+/**
+ *  @file pwm.c
+ *
+ *  @brief 
+ */
+
+#include "wiring.h"
+#include "timers.h"
+#include "io.h"
+#include "pwm.h"
+
+extern const PinMapping PIN_MAP[NR_MAPLE_PINS];
+
+void pwmWrite(uint8_t pin, uint16_t duty_cycle) {
+    TimerCCR ccr;
+
+    if (pin >= NR_MAPLE_PINS) {
+        return;
+    }
+
+    ccr = PIN_MAP[pin].timer_channel;
+
+    if (ccr == TIMER_INVALID)
+        return;
+
+    timer_pwm_write_ccr(ccr, duty_cycle);
+}
+
+