00001 /* 00002 00003 Copyright (c) 2010, Embedded Adventures, www.embeddedadventures.com 00004 All rights reserved. 00005 00006 Redistribution and use in source and binary forms, with or without 00007 modification, are permitted provided that the following conditions are met: 00008 00009 - Redistributions of source code must retain the above copyright notice, 00010 this list of conditions and the following disclaimer. 00011 00012 - Redistributions in binary form must reproduce the above copyright 00013 notice, this list of conditions and the following disclaimer in the 00014 documentation and/or other materials provided with the distribution. 00015 00016 - Neither the name of Embedded Adventures nor the names of its contributors 00017 may be used to endorse or promote products derived from this software 00018 without specific prior written permission. 00019 00020 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00021 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00022 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00023 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 00024 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00025 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00026 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00029 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 00030 THE POSSIBILITY OF SUCH DAMAGE. 00031 00032 Contact us at admin@embeddedadventures.com 00033 00034 */ 00035 00044 #ifndef __i2c_hw_h 00045 #define __i2c_hw_h 00046 00047 #include "pic_utils.h" 00048 #include "config.h" 00049 00050 // Include the following in your config.h: 00051 /* 00052 // - - - - - - - - - - - 00053 // i2c defines 00054 // - - - - - - - - - - - 00055 // This needs to be the same as the hardware 00056 00057 #define i2c_clk_port PORTB 00058 #define i2c_data_port PORTB 00059 #define i2c_clk_pin 6 00060 #define i2c_data_pin 4 00061 00062 // - - - - - - - - - - - 00063 */ 00064 00065 00066 00073 void i2c_write(uns8 data); 00074 00081 void i2c_write_lsb(uns8 data); 00082 00088 void i2c_setup_io(); 00089 00090 00095 void i2c_pulse_0(); 00100 void i2c_pulse_1(); 00101 00102 00103 #ifndef i2c_clk_port 00104 #error "i2c_clk_port not defined in config.h" 00105 #endif 00106 #ifndef i2c_data_port 00107 #error "i2c_data_port not defined in config.h" 00108 #endif 00109 #ifndef i2c_clk_pin 00110 #error "i2c_clk_pin not defined in config.h" 00111 #endif 00112 #ifndef i2c_data_pin 00113 #error "i2c_data_pin not defined in config.h" 00114 #endif 00115 00116 00117 00118 #endif