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 __spi_h 00045 #define __spi_h 00046 00047 #include "pic_utils.h" 00048 #include "config.h" 00049 00050 // Include the following in your config.h: 00051 /* 00052 // - - - - - - - - - - - 00053 // spi defines 00054 // - - - - - - - - - - - 00055 00056 #define spi_clk_port PORTA 00057 #define spi_data_port PORTA 00058 #define spi_clk_pin 2 00059 #define spi_data_pin 3 00060 00061 // - - - - - - - - - - - 00062 */ 00063 00064 00065 00072 void spi_write(uns8 data); 00073 00080 void spi_write_lsb(uns8 data); 00081 00087 void spi_setup(); 00088 00096 void spi_write_sure(uns8 data); 00097 00102 void spi_pulse_0(); 00107 void spi_pulse_1(); 00108 00109 00110 #ifndef spi_clk_port 00111 #error "spi_clk_port not defined in config.h" 00112 #endif 00113 #ifndef spi_data_port 00114 #error "spi_data_port not defined in config.h" 00115 #endif 00116 #ifndef spi_clk_pin 00117 #error "spi_clk_pin not defined in config.h" 00118 #endif 00119 #ifndef spi_data_pin 00120 #error "spi_data_pin not defined in config.h" 00121 #endif 00122 00123 00124 00125 #endif