sleep library for cortex m0

Revision:
0:e8a124690cda
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pca9865.h	Fri Sep 27 18:13:20 2013 +0000
@@ -0,0 +1,74 @@
+/**************************************************************************/
+/*!
+    @file     pca9685.h
+    @author   K. Townsend (microBuilder.eu)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2012 K. Townsend
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/**************************************************************************/
+#ifndef _PCA9685_H_
+#define _PCA9685_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "projectconfig.h"
+#include "core/i2c/i2c.h"
+
+#define PCA9685_ADDRESS           (0x40<<1)    // 1000000
+#define PCA9685_READBIT           (0x01)
+
+enum
+{
+  PCA9685_REG_SUBADR1            = 0x02,
+  PCA9685_REG_SUBADR2            = 0x03,
+  PCA9685_REG_SUBADR3            = 0x04,
+  PCA9685_REG_MODE1              = 0x00,
+  PCA9685_REG_PRESCALE           = 0xFE,
+  PCA9685_REG_LED0_ON_L          = 0x06,
+  PCA9685_REG_LED0_ON_H          = 0x07,
+  PCA9685_REG_LED0_OFF_L         = 0x08,
+  PCA9685_REG_LED0_OFF_H         = 0x09,
+  PCA9685_REG_ALLLED_ON_L        = 0xFA,
+  PCA9685_REG_ALLLED_ON_H        = 0xFB,
+  PCA9685_REG_ALLLED_OFF_L       = 0xFC,
+  PCA9685_REG_ALLLED_OFF_H       = 0xFD
+};
+
+error_t pca9685Init (uint8_t address);
+error_t pca9685SetFrequency (uint16_t freqHz);
+error_t pca9685SetPWM (uint16_t channel, uint16_t on, uint16_t off);
+
+#ifdef __cplusplus
+}
+#endif 
+
+#endif
\ No newline at end of file