/** * \file * * \brief SAM D21 Clock configuration * * Copyright (C) 2014-2015 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 * */ /* * Support and FAQ: visit Atmel Support */ #include #ifndef CONF_CLOCKS_H_INCLUDED # define CONF_CLOCKS_H_INCLUDED /* System clock bus configuration */ # define CONF_CLOCK_CPU_CLOCK_FAILURE_DETECT false # 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 # define CONF_CLOCK_APBC_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 true # 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 false # define CONF_CLOCK_XOSC32K_ENABLE_1KHZ_OUPUT false # define CONF_CLOCK_XOSC32K_ENABLE_32KHZ_OUTPUT true # define CONF_CLOCK_XOSC32K_ON_DEMAND false # define CONF_CLOCK_XOSC32K_RUN_IN_STANDBY true /* SYSTEM_CLOCK_SOURCE_OSC32K configuration - Internal 32KHz oscillator */ # define CONF_CLOCK_OSC32K_ENABLE false # define CONF_CLOCK_OSC32K_STARTUP_TIME SYSTEM_OSC32K_STARTUP_130 # 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 true /* DFLL open loop mode configuration */ # define CONF_CLOCK_DFLL_FINE_VALUE (512) /* DFLL closed loop mode configuration */ # define CONF_CLOCK_DFLL_SOURCE_GCLK_GENERATOR GCLK_GENERATOR_1 # define CONF_CLOCK_DFLL_MULTIPLY_FACTOR (48000000 / 32768) # 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) /* SYSTEM_CLOCK_SOURCE_DPLL configuration - Digital Phase-Locked Loop */ # define CONF_CLOCK_DPLL_ENABLE false # define CONF_CLOCK_DPLL_ON_DEMAND true # define CONF_CLOCK_DPLL_RUN_IN_STANDBY false # define CONF_CLOCK_DPLL_LOCK_BYPASS false # define CONF_CLOCK_DPLL_WAKE_UP_FAST false # define CONF_CLOCK_DPLL_LOW_POWER_ENABLE false # define CONF_CLOCK_DPLL_LOCK_TIME SYSTEM_CLOCK_SOURCE_DPLL_LOCK_TIME_DEFAULT # define CONF_CLOCK_DPLL_REFERENCE_CLOCK SYSTEM_CLOCK_SOURCE_DPLL_REFERENCE_CLOCK_XOSC32K # define CONF_CLOCK_DPLL_FILTER SYSTEM_CLOCK_SOURCE_DPLL_FILTER_DEFAULT # define CONF_CLOCK_DPLL_REFERENCE_FREQUENCY 32768 # define CONF_CLOCK_DPLL_REFERENCE_DIVIDER 1 # define CONF_CLOCK_DPLL_OUTPUT_FREQUENCY 48000000 /* DPLL GCLK reference configuration */ # define CONF_CLOCK_DPLL_REFERENCE_GCLK_GENERATOR GCLK_GENERATOR_1 /* DPLL GCLK lock timer configuration */ # define CONF_CLOCK_DPLL_LOCK_GCLK_GENERATOR GCLK_GENERATOR_1 /* 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 true # 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_XOSC32K # define CONF_CLOCK_GCLK_1_PRESCALER 1 # define CONF_CLOCK_GCLK_1_OUTPUT_ENABLE true /* 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 true # define CONF_CLOCK_GCLK_3_RUN_IN_STANDBY true # 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 /* Configure GCLK generator 8 */ # define CONF_CLOCK_GCLK_8_ENABLE false # define CONF_CLOCK_GCLK_8_RUN_IN_STANDBY false # define CONF_CLOCK_GCLK_8_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC8M # define CONF_CLOCK_GCLK_8_PRESCALER 1 # define CONF_CLOCK_GCLK_8_OUTPUT_ENABLE false #endif /* CONF_CLOCKS_H_INCLUDED */