| /** | |
| * \file | |
| * | |
| * \brief SAM D20 Clock configuration | |
| * | |
| * Copyright (C) 2012-2013 Atmel Corporation. All rights reserved. | |
| * | |
| * \asf_license_start | |
| * | |
| * \page License | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions are met: | |
| * | |
| * 1. Redistributions of source code must retain the above copyright notice, | |
| * this list of conditions and the following disclaimer. | |
| * | |
| * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| * this list of conditions and the following disclaimer in the documentation | |
| * and/or other materials provided with the distribution. | |
| * | |
| * 3. The name of Atmel may not be used to endorse or promote products derived | |
| * from this software without specific prior written permission. | |
| * | |
| * 4. This software may only be redistributed and used in connection with an | |
| * Atmel microcontroller product. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED | |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE | |
| * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR | |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | |
| * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| * POSSIBILITY OF SUCH DAMAGE. | |
| * | |
| * \asf_license_stop | |
| * | |
| */ | |
| #include <clock.h> | |
| #ifndef CONF_CLOCKS_H_INCLUDED | |
| # define CONF_CLOCKS_H_INCLUDED | |
| /* System clock bus configuration */ | |
| # define CONF_CLOCK_CPU_CLOCK_FAILURE_DETECT true | |
| # define CONF_CLOCK_FLASH_WAIT_STATES 2 | |
| # define CONF_CLOCK_CPU_DIVIDER SYSTEM_MAIN_CLOCK_DIV_1 | |
| # define CONF_CLOCK_APBA_DIVIDER SYSTEM_MAIN_CLOCK_DIV_1 | |
| # define CONF_CLOCK_APBB_DIVIDER SYSTEM_MAIN_CLOCK_DIV_1 | |
| /* SYSTEM_CLOCK_SOURCE_OSC8M configuration - Internal 8MHz oscillator */ | |
| # define CONF_CLOCK_OSC8M_PRESCALER SYSTEM_OSC8M_DIV_1 | |
| # define CONF_CLOCK_OSC8M_ON_DEMAND true | |
| # define CONF_CLOCK_OSC8M_RUN_IN_STANDBY false | |
| /* SYSTEM_CLOCK_SOURCE_XOSC configuration - External clock/oscillator */ | |
| # define CONF_CLOCK_XOSC_ENABLE false | |
| # define CONF_CLOCK_XOSC_EXTERNAL_CRYSTAL SYSTEM_CLOCK_EXTERNAL_CRYSTAL | |
| # define CONF_CLOCK_XOSC_EXTERNAL_FREQUENCY 12000000UL | |
| # define CONF_CLOCK_XOSC_STARTUP_TIME SYSTEM_XOSC_STARTUP_32768 | |
| # define CONF_CLOCK_XOSC_AUTO_GAIN_CONTROL true | |
| # define CONF_CLOCK_XOSC_ON_DEMAND true | |
| # define CONF_CLOCK_XOSC_RUN_IN_STANDBY false | |
| /* SYSTEM_CLOCK_SOURCE_XOSC32K configuration - External 32KHz crystal/clock oscillator */ | |
| # define CONF_CLOCK_XOSC32K_ENABLE false | |
| # define CONF_CLOCK_XOSC32K_EXTERNAL_CRYSTAL SYSTEM_CLOCK_EXTERNAL_CRYSTAL | |
| # define CONF_CLOCK_XOSC32K_STARTUP_TIME SYSTEM_XOSC32K_STARTUP_65536 | |
| # define CONF_CLOCK_XOSC32K_AUTO_AMPLITUDE_CONTROL true | |
| # define CONF_CLOCK_XOSC32K_ENABLE_1KHZ_OUPUT false | |
| # define CONF_CLOCK_XOSC32K_ENABLE_32KHZ_OUTPUT true | |
| # define CONF_CLOCK_XOSC32K_ON_DEMAND true | |
| # define CONF_CLOCK_XOSC32K_RUN_IN_STANDBY false | |
| /* SYSTEM_CLOCK_SOURCE_OSC32K configuration - Internal 32KHz oscillator */ | |
| # define CONF_CLOCK_OSC32K_ENABLE false | |
| # define CONF_CLOCK_OSC32K_STARTUP_TIME SYSTEM_OSC32K_STARTUP_128 | |
| # define CONF_CLOCK_OSC32K_ENABLE_1KHZ_OUTPUT true | |
| # define CONF_CLOCK_OSC32K_ENABLE_32KHZ_OUTPUT true | |
| # define CONF_CLOCK_OSC32K_ON_DEMAND true | |
| # define CONF_CLOCK_OSC32K_RUN_IN_STANDBY false | |
| /* SYSTEM_CLOCK_SOURCE_DFLL configuration - Digital Frequency Locked Loop */ | |
| # define CONF_CLOCK_DFLL_ENABLE true | |
| # define CONF_CLOCK_DFLL_LOOP_MODE SYSTEM_CLOCK_DFLL_LOOP_MODE_CLOSED | |
| # define CONF_CLOCK_DFLL_ON_DEMAND false | |
| # define CONF_CLOCK_DFLL_RUN_IN_STANDBY false | |
| /* DFLL open loop mode configuration */ | |
| # define CONF_CLOCK_DFLL_COARSE_VALUE (0x1f / 4) | |
| # define CONF_CLOCK_DFLL_FINE_VALUE (0xff / 4) | |
| /* DFLL closed loop mode configuration */ | |
| # define CONF_CLOCK_DFLL_SOURCE_GCLK_GENERATOR GCLK_GENERATOR_1 | |
| # define CONF_CLOCK_DFLL_MULTIPLY_FACTOR 6 | |
| # define CONF_CLOCK_DFLL_QUICK_LOCK true | |
| # define CONF_CLOCK_DFLL_TRACK_AFTER_FINE_LOCK true | |
| # define CONF_CLOCK_DFLL_KEEP_LOCK_ON_WAKEUP true | |
| # define CONF_CLOCK_DFLL_ENABLE_CHILL_CYCLE true | |
| # define CONF_CLOCK_DFLL_MAX_COARSE_STEP_SIZE (0x1f / 4) | |
| # define CONF_CLOCK_DFLL_MAX_FINE_STEP_SIZE (0xff / 4) | |
| /* Set this to true to configure the GCLK when running clocks_init. If set to | |
| * false, none of the GCLK generators will be configured in clocks_init(). */ | |
| # define CONF_CLOCK_CONFIGURE_GCLK true | |
| /* Configure GCLK generator 0 (Main Clock) */ | |
| # define CONF_CLOCK_GCLK_0_ENABLE true | |
| # define CONF_CLOCK_GCLK_0_RUN_IN_STANDBY false | |
| # define CONF_CLOCK_GCLK_0_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_DFLL | |
| # define CONF_CLOCK_GCLK_0_PRESCALER 1 | |
| # define CONF_CLOCK_GCLK_0_OUTPUT_ENABLE false | |
| /* Configure GCLK generator 1 */ | |
| # define CONF_CLOCK_GCLK_1_ENABLE true | |
| # define CONF_CLOCK_GCLK_1_RUN_IN_STANDBY false | |
| # define CONF_CLOCK_GCLK_1_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC8M | |
| # define CONF_CLOCK_GCLK_1_PRESCALER 1 | |
| # define CONF_CLOCK_GCLK_1_OUTPUT_ENABLE false | |
| /* Configure GCLK generator 2 (RTC) */ | |
| # define CONF_CLOCK_GCLK_2_ENABLE false | |
| # define CONF_CLOCK_GCLK_2_RUN_IN_STANDBY false | |
| # define CONF_CLOCK_GCLK_2_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC32K | |
| # define CONF_CLOCK_GCLK_2_PRESCALER 32 | |
| # define CONF_CLOCK_GCLK_2_OUTPUT_ENABLE false | |
| /* Configure GCLK generator 3 */ | |
| # define CONF_CLOCK_GCLK_3_ENABLE false | |
| # define CONF_CLOCK_GCLK_3_RUN_IN_STANDBY false | |
| # define CONF_CLOCK_GCLK_3_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC8M | |
| # define CONF_CLOCK_GCLK_3_PRESCALER 1 | |
| # define CONF_CLOCK_GCLK_3_OUTPUT_ENABLE false | |
| /* Configure GCLK generator 4 */ | |
| # define CONF_CLOCK_GCLK_4_ENABLE false | |
| # define CONF_CLOCK_GCLK_4_RUN_IN_STANDBY false | |
| # define CONF_CLOCK_GCLK_4_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC8M | |
| # define CONF_CLOCK_GCLK_4_PRESCALER 1 | |
| # define CONF_CLOCK_GCLK_4_OUTPUT_ENABLE false | |
| /* Configure GCLK generator 5 */ | |
| # define CONF_CLOCK_GCLK_5_ENABLE false | |
| # define CONF_CLOCK_GCLK_5_RUN_IN_STANDBY false | |
| # define CONF_CLOCK_GCLK_5_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC8M | |
| # define CONF_CLOCK_GCLK_5_PRESCALER 1 | |
| # define CONF_CLOCK_GCLK_5_OUTPUT_ENABLE false | |
| /* Configure GCLK generator 6 */ | |
| # define CONF_CLOCK_GCLK_6_ENABLE false | |
| # define CONF_CLOCK_GCLK_6_RUN_IN_STANDBY false | |
| # define CONF_CLOCK_GCLK_6_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC8M | |
| # define CONF_CLOCK_GCLK_6_PRESCALER 1 | |
| # define CONF_CLOCK_GCLK_6_OUTPUT_ENABLE false | |
| /* Configure GCLK generator 7 */ | |
| # define CONF_CLOCK_GCLK_7_ENABLE false | |
| # define CONF_CLOCK_GCLK_7_RUN_IN_STANDBY false | |
| # define CONF_CLOCK_GCLK_7_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC8M | |
| # define CONF_CLOCK_GCLK_7_PRESCALER 1 | |
| # define CONF_CLOCK_GCLK_7_OUTPUT_ENABLE false | |
| #endif /* CONF_CLOCKS_H_INCLUDED */ | |