00001 /*This file is prepared for Doxygen automatic documentation generation.*/ 00013 00014 /* Copyright (c) 2009 Atmel Corporation. All rights reserved. 00015 * 00016 * Redistribution and use in source and binary forms, with or without 00017 * modification, are permitted provided that the following conditions are met: 00018 * 00019 * 1. Redistributions of source code must retain the above copyright notice, 00020 * this list of conditions and the following disclaimer. 00021 * 00022 * 2. Redistributions in binary form must reproduce the above copyright notice, 00023 * this list of conditions and the following disclaimer in the documentation 00024 * and/or other materials provided with the distribution. 00025 * 00026 * 3. The name of Atmel may not be used to endorse or promote products derived 00027 * from this software without specific prior written permission. 00028 * 00029 * 4. This software may only be redistributed and used in connection with an Atmel 00030 * AVR product. 00031 * 00032 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED 00033 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00034 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE EXPRESSLY AND 00035 * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, 00036 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00037 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00038 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00039 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00040 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 00041 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00042 */ 00043 00044 /*_____ I N C L U D E S ____________________________________________________*/ 00045 #define _EEP_LIB_C_ 00046 #include "config.h" 00047 #include "eep_drv.h" 00048 #include "eep_lib.h" 00049 00050 /*_____ M A C R O S ________________________________________________________*/ 00051 00052 /*_____ D E F I N I T I O N S ______________________________________________*/ 00053 #ifndef EEPROM_SIZE 00054 #error You must define EEPROM_SIZE in bytes in config.h 00055 #else 00056 00057 00058 bit eeprom_erase(void) 00059 { 00060 #if EEPROM_SIZE > 0 00061 register Uint16 addr; 00062 00063 Enable_eeprom(); 00064 addr=0; 00065 do { 00066 while (eeprom_busy()); 00067 eeprom_wr(addr,EEPROM_BLANK_VALUE); 00068 } while (addr++!=(EEPROM_SIZE-1)); 00069 Disable_eeprom(); 00070 #endif 00071 return TRUE; 00072 } 00073 00074 bit eeprom_wr_byte (Uint16 addr, Uchar value) 00075 { 00076 Enable_eeprom(); 00077 while (eeprom_busy()); 00078 eeprom_wr(addr,value); 00079 Disable_eeprom(); 00080 return TRUE; 00081 } 00082 00083 00084 Byte eeprom_rd_byte (Uint16 addr) 00085 { 00086 register Byte b; 00087 while (eeprom_busy()); 00088 Enable_eeprom(); 00089 b=eeprom_rd(addr); 00090 Disable_eeprom(); 00091 return b; 00092 } 00093 00094 00095 00096 bit eeprom_rd_block (Uint16 src, Byte _MemType_* dest, Byte n) 00097 { 00098 while (eeprom_busy()); 00099 Enable_eeprom(); 00100 for (;n--;++src) *dest++=eeprom_rd(src); 00101 Disable_eeprom(); 00102 return TRUE; 00103 } 00104 00105 00106 00107 bit eeprom_wr_block (Byte _MemType_* src, Uint16 dest, U16 n) 00108 { 00109 #if EEPROM_SIZE > 0 00110 00111 Enable_eeprom(); 00112 for (;n--;) 00113 { 00114 while (eeprom_busy()); 00115 eeprom_wr(dest,*src++); 00116 if (dest++==(EEPROM_SIZE-1)) break; // page not aligned on boundary EEPROM memory block 00117 } 00118 Disable_eeprom(); 00119 #endif 00120 return TRUE; 00121 } 00122 00123 #endif 00124
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