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 00046 #include "config.h" 00047 #include "power_drv.h" 00048 00049 00050 //_____ D E C L A R A T I O N ______________________________________________ 00051 00052 00057 #ifndef __GNUC__ 00058 // Ignored if IAR compiler optimization option "Always do cross call optimization" is enabled 00059 #pragma optimize=none 00060 void Set_cpu_prescaler(U8 x) 00061 { 00062 U8 save_int=Get_interrupt_state(); 00063 Disable_interrupt(); 00064 CLKPR=(1<<CLKPCE); 00065 CLKPR=x; 00066 if(save_int) { Enable_interrupt(); } 00067 } 00068 #endif 00069 00070 00073 void set_power_down_mode(void) 00074 { 00075 Setup_power_down_mode(); 00076 Sleep_instruction(); 00077 } 00078 00079 00082 void set_idle_mode(void) 00083 { 00084 Setup_idle_mode(); 00085 Sleep_instruction(); 00086 } 00087 00088 00091 void set_adc_noise_reduction_mode(void) 00092 { 00093 Setup_adc_noise_reduction_mode(); 00094 Sleep_instruction(); 00095 } 00096 00097 00100 void set_power_save_mode(void) 00101 { 00102 Setup_power_save_mode(); 00103 Sleep_instruction(); 00104 } 00105 00106 00109 void set_standby_mode(void) 00110 { 00111 Setup_standby_mode(); 00112 Sleep_instruction(); 00113 } 00114 00115 00118 void set_ext_standby_mode(void) 00119 { 00120 Setup_ext_standby_mode(); 00121 Sleep_instruction(); 00122 } 00123 00124 00127 void Clock_switch_external(void) 00128 { 00129 Enable_external_clock(); 00130 while (!External_clock_ready()); 00131 Select_external_clock(); 00132 Disable_RC_clock(); 00133 } 00134 00135 00138 void Clock_switch_internal(void) 00139 { 00140 Enable_RC_clock(); 00141 while (!RC_clock_ready()); 00142 Select_RC_clock(); 00143 Disable_external_clock(); 00144 }