pca9865.h

00001 /**************************************************************************/
00002 /*!
00003     @file     pca9685.h
00004     @author   K. Townsend (microBuilder.eu)
00005 
00006     @section LICENSE
00007 
00008     Software License Agreement (BSD License)
00009 
00010     Copyright (c) 2012 K. Townsend
00011     All rights reserved.
00012 
00013     Redistribution and use in source and binary forms, with or without
00014     modification, are permitted provided that the following conditions are met:
00015     1. Redistributions of source code must retain the above copyright
00016     notice, this list of conditions and the following disclaimer.
00017     2. Redistributions in binary form must reproduce the above copyright
00018     notice, this list of conditions and the following disclaimer in the
00019     documentation and/or other materials provided with the distribution.
00020     3. Neither the name of the copyright holders nor the
00021     names of its contributors may be used to endorse or promote products
00022     derived from this software without specific prior written permission.
00023 
00024     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
00025     EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00026     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00027     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
00028     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
00029     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00030     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00031     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00032     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00033     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00034 */
00035 /**************************************************************************/
00036 #ifndef _PCA9685_H_
00037 #define _PCA9685_H_
00038 
00039 #ifdef __cplusplus
00040 extern "C" {
00041 #endif
00042 
00043 #include "projectconfig.h"
00044 #include "core/i2c/i2c.h"
00045 
00046 #define PCA9685_ADDRESS           (0x40<<1)    // 1000000
00047 #define PCA9685_READBIT           (0x01)
00048 
00049 enum
00050 {
00051   PCA9685_REG_SUBADR1            = 0x02,
00052   PCA9685_REG_SUBADR2            = 0x03,
00053   PCA9685_REG_SUBADR3            = 0x04,
00054   PCA9685_REG_MODE1              = 0x00,
00055   PCA9685_REG_PRESCALE           = 0xFE,
00056   PCA9685_REG_LED0_ON_L          = 0x06,
00057   PCA9685_REG_LED0_ON_H          = 0x07,
00058   PCA9685_REG_LED0_OFF_L         = 0x08,
00059   PCA9685_REG_LED0_OFF_H         = 0x09,
00060   PCA9685_REG_ALLLED_ON_L        = 0xFA,
00061   PCA9685_REG_ALLLED_ON_H        = 0xFB,
00062   PCA9685_REG_ALLLED_OFF_L       = 0xFC,
00063   PCA9685_REG_ALLLED_OFF_H       = 0xFD
00064 };
00065 
00066 error_t pca9685Init (uint8_t address);
00067 error_t pca9685SetFrequency (uint16_t freqHz);
00068 error_t pca9685SetPWM (uint16_t channel, uint16_t on, uint16_t off);
00069 
00070 #ifdef __cplusplus
00071 }
00072 #endif 
00073 
00074 #endif