Sergey Solodunov / mbed-dev

mbed library sources. Supersedes mbed-src.

Fork of mbed-dev by mbed official

targets/hal/TARGET_Atmel/TARGET_SAM_CortexM0P/config/TARGET_SAML21/conf_clocks.h@144:423e1876dc07, 2016-08-02 (annotated)

Committer:
screamer
Date:
Tue Aug 02 14:07:36 2016 +0000
Revision:
144:423e1876dc07
Parent:
18:da299f395b9e 
Added targets.json file for the supported targets in the release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 18:da299f395b9e 1 /**
mbed_official 18:da299f395b9e 2 * \file
mbed_official 18:da299f395b9e 3 *
mbed_official 18:da299f395b9e 4 * \brief SAM L21 Clock configuration
mbed_official 18:da299f395b9e 5 *
mbed_official 18:da299f395b9e 6 * Copyright (C) 2014-2015 Atmel Corporation. All rights reserved.
mbed_official 18:da299f395b9e 7 *
mbed_official 18:da299f395b9e 8 * \asf_license_start
mbed_official 18:da299f395b9e 9 *
mbed_official 18:da299f395b9e 10 * \page License
mbed_official 18:da299f395b9e 11 *
mbed_official 18:da299f395b9e 12 * Redistribution and use in source and binary forms, with or without
mbed_official 18:da299f395b9e 13 * modification, are permitted provided that the following conditions are met:
mbed_official 18:da299f395b9e 14 *
mbed_official 18:da299f395b9e 15 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 18:da299f395b9e 16 * this list of conditions and the following disclaimer.
mbed_official 18:da299f395b9e 17 *
mbed_official 18:da299f395b9e 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 18:da299f395b9e 19 * this list of conditions and the following disclaimer in the documentation
mbed_official 18:da299f395b9e 20 * and/or other materials provided with the distribution.
mbed_official 18:da299f395b9e 21 *
mbed_official 18:da299f395b9e 22 * 3. The name of Atmel may not be used to endorse or promote products derived
mbed_official 18:da299f395b9e 23 * from this software without specific prior written permission.
mbed_official 18:da299f395b9e 24 *
mbed_official 18:da299f395b9e 25 * 4. This software may only be redistributed and used in connection with an
mbed_official 18:da299f395b9e 26 * Atmel microcontroller product.
mbed_official 18:da299f395b9e 27 *
mbed_official 18:da299f395b9e 28 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
mbed_official 18:da299f395b9e 29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
mbed_official 18:da299f395b9e 30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
mbed_official 18:da299f395b9e 31 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
mbed_official 18:da299f395b9e 32 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 18:da299f395b9e 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
mbed_official 18:da299f395b9e 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
mbed_official 18:da299f395b9e 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
mbed_official 18:da299f395b9e 36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
mbed_official 18:da299f395b9e 37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mbed_official 18:da299f395b9e 38 * POSSIBILITY OF SUCH DAMAGE.
mbed_official 18:da299f395b9e 39 *
mbed_official 18:da299f395b9e 40 * \asf_license_stop
mbed_official 18:da299f395b9e 41 *
mbed_official 18:da299f395b9e 42 */
mbed_official 18:da299f395b9e 43 /*
mbed_official 18:da299f395b9e 44 * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
mbed_official 18:da299f395b9e 45 */
mbed_official 18:da299f395b9e 46 #include <clock.h>
mbed_official 18:da299f395b9e 47
mbed_official 18:da299f395b9e 48 #ifndef CONF_CLOCKS_H_INCLUDED
mbed_official 18:da299f395b9e 49 # define CONF_CLOCKS_H_INCLUDED
mbed_official 18:da299f395b9e 50
mbed_official 18:da299f395b9e 51 /* System clock bus configuration */
mbed_official 18:da299f395b9e 52 # define CONF_CLOCK_CPU_CLOCK_FAILURE_DETECT false
mbed_official 18:da299f395b9e 53 # define CONF_CLOCK_FLASH_WAIT_STATES 0
mbed_official 18:da299f395b9e 54 # define CONF_CLOCK_CPU_DIVIDER SYSTEM_MAIN_CLOCK_DIV_1
mbed_official 18:da299f395b9e 55 # define CONF_CLOCK_LOW_POWER_DIVIDER SYSTEM_MAIN_CLOCK_DIV_1
mbed_official 18:da299f395b9e 56 # define CONF_CLOCK_BACKUP_DIVIDER SYSTEM_MAIN_CLOCK_DIV_1
mbed_official 18:da299f395b9e 57
mbed_official 18:da299f395b9e 58 /* SYSTEM_CLOCK_SOURCE_OSC16M configuration - Internal 16MHz oscillator */
mbed_official 18:da299f395b9e 59 # define CONF_CLOCK_OSC16M_FREQ_SEL SYSTEM_OSC16M_4M
mbed_official 18:da299f395b9e 60 # define CONF_CLOCK_OSC16M_ON_DEMAND true
mbed_official 18:da299f395b9e 61 # define CONF_CLOCK_OSC16M_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 62
mbed_official 18:da299f395b9e 63 /* SYSTEM_CLOCK_SOURCE_XOSC configuration - External clock/oscillator */
mbed_official 18:da299f395b9e 64 # define CONF_CLOCK_XOSC_ENABLE false
mbed_official 18:da299f395b9e 65 # define CONF_CLOCK_XOSC_EXTERNAL_CRYSTAL SYSTEM_CLOCK_EXTERNAL_CRYSTAL
mbed_official 18:da299f395b9e 66 # define CONF_CLOCK_XOSC_EXTERNAL_FREQUENCY 12000000UL
mbed_official 18:da299f395b9e 67 # define CONF_CLOCK_XOSC_STARTUP_TIME SYSTEM_XOSC_STARTUP_32768
mbed_official 18:da299f395b9e 68 # define CONF_CLOCK_XOSC_AUTO_GAIN_CONTROL true
mbed_official 18:da299f395b9e 69 # define CONF_CLOCK_XOSC_ON_DEMAND true
mbed_official 18:da299f395b9e 70 # define CONF_CLOCK_XOSC_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 71
mbed_official 18:da299f395b9e 72 /* SYSTEM_CLOCK_SOURCE_XOSC32K configuration - External 32KHz crystal/clock oscillator */
mbed_official 18:da299f395b9e 73 # define CONF_CLOCK_XOSC32K_ENABLE false
mbed_official 18:da299f395b9e 74 # define CONF_CLOCK_XOSC32K_EXTERNAL_CRYSTAL SYSTEM_CLOCK_EXTERNAL_CRYSTAL
mbed_official 18:da299f395b9e 75 # define CONF_CLOCK_XOSC32K_STARTUP_TIME SYSTEM_XOSC32K_STARTUP_65536
mbed_official 18:da299f395b9e 76 # define CONF_CLOCK_XOSC32K_ENABLE_1KHZ_OUPUT false
mbed_official 18:da299f395b9e 77 # define CONF_CLOCK_XOSC32K_ENABLE_32KHZ_OUTPUT true
mbed_official 18:da299f395b9e 78 # define CONF_CLOCK_XOSC32K_ON_DEMAND true
mbed_official 18:da299f395b9e 79 # define CONF_CLOCK_XOSC32K_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 80
mbed_official 18:da299f395b9e 81 /* SYSTEM_CLOCK_SOURCE_OSC32K configuration - Internal 32KHz oscillator */
mbed_official 18:da299f395b9e 82 # define CONF_CLOCK_OSC32K_ENABLE false
mbed_official 18:da299f395b9e 83 # define CONF_CLOCK_OSC32K_STARTUP_TIME SYSTEM_OSC32K_STARTUP_130
mbed_official 18:da299f395b9e 84 # define CONF_CLOCK_OSC32K_ENABLE_1KHZ_OUTPUT true
mbed_official 18:da299f395b9e 85 # define CONF_CLOCK_OSC32K_ENABLE_32KHZ_OUTPUT true
mbed_official 18:da299f395b9e 86 # define CONF_CLOCK_OSC32K_ON_DEMAND true
mbed_official 18:da299f395b9e 87 # define CONF_CLOCK_OSC32K_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 88
mbed_official 18:da299f395b9e 89
mbed_official 18:da299f395b9e 90 /* SYSTEM_CLOCK_SOURCE_DFLL configuration - Digital Frequency Locked Loop */
mbed_official 18:da299f395b9e 91 # define CONF_CLOCK_DFLL_ENABLE false
mbed_official 18:da299f395b9e 92 # define CONF_CLOCK_DFLL_LOOP_MODE SYSTEM_CLOCK_DFLL_LOOP_MODE_OPEN
mbed_official 18:da299f395b9e 93 # define CONF_CLOCK_DFLL_ON_DEMAND false
mbed_official 18:da299f395b9e 94 # define CONF_CLOCK_DFLL_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 95
mbed_official 18:da299f395b9e 96 /* DFLL open loop mode configuration */
mbed_official 18:da299f395b9e 97 # define CONF_CLOCK_DFLL_FINE_VALUE (0xff / 4)
mbed_official 18:da299f395b9e 98
mbed_official 18:da299f395b9e 99 /* DFLL closed loop mode configuration */
mbed_official 18:da299f395b9e 100 # define CONF_CLOCK_DFLL_SOURCE_GCLK_GENERATOR GCLK_GENERATOR_1
mbed_official 18:da299f395b9e 101 # define CONF_CLOCK_DFLL_MULTIPLY_FACTOR (48000000 / 32768)
mbed_official 18:da299f395b9e 102 # define CONF_CLOCK_DFLL_QUICK_LOCK true
mbed_official 18:da299f395b9e 103 # define CONF_CLOCK_DFLL_TRACK_AFTER_FINE_LOCK true
mbed_official 18:da299f395b9e 104 # define CONF_CLOCK_DFLL_KEEP_LOCK_ON_WAKEUP true
mbed_official 18:da299f395b9e 105 # define CONF_CLOCK_DFLL_ENABLE_CHILL_CYCLE true
mbed_official 18:da299f395b9e 106 # define CONF_CLOCK_DFLL_MAX_COARSE_STEP_SIZE (0x1f / 4)
mbed_official 18:da299f395b9e 107 # define CONF_CLOCK_DFLL_MAX_FINE_STEP_SIZE (0xff / 4)
mbed_official 18:da299f395b9e 108
mbed_official 18:da299f395b9e 109 /* SYSTEM_CLOCK_SOURCE_DPLL configuration - Digital Phase-Locked Loop */
mbed_official 18:da299f395b9e 110 # define CONF_CLOCK_DPLL_ENABLE false
mbed_official 18:da299f395b9e 111 # define CONF_CLOCK_DPLL_ON_DEMAND true
mbed_official 18:da299f395b9e 112 # define CONF_CLOCK_DPLL_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 113 # define CONF_CLOCK_DPLL_LOCK_BYPASS false
mbed_official 18:da299f395b9e 114 # define CONF_CLOCK_DPLL_WAKE_UP_FAST false
mbed_official 18:da299f395b9e 115 # define CONF_CLOCK_DPLL_LOW_POWER_ENABLE false
mbed_official 18:da299f395b9e 116
mbed_official 18:da299f395b9e 117 # define CONF_CLOCK_DPLL_LOCK_TIME SYSTEM_CLOCK_SOURCE_DPLL_LOCK_TIME_DEFAULT
mbed_official 18:da299f395b9e 118 # define CONF_CLOCK_DPLL_REFERENCE_CLOCK SYSTEM_CLOCK_SOURCE_DPLL_REFERENCE_CLOCK_XOSC32K
mbed_official 18:da299f395b9e 119 # define CONF_CLOCK_DPLL_FILTER SYSTEM_CLOCK_SOURCE_DPLL_FILTER_DEFAULT
mbed_official 18:da299f395b9e 120 # define CONF_CLOCK_DPLL_PRESCALER SYSTEM_CLOCK_SOURCE_DPLL_DIV_1
mbed_official 18:da299f395b9e 121
mbed_official 18:da299f395b9e 122
mbed_official 18:da299f395b9e 123 # define CONF_CLOCK_DPLL_REFERENCE_FREQUENCY 32768
mbed_official 18:da299f395b9e 124 # define CONF_CLOCK_DPLL_REFERENCE_DIVIDER 1
mbed_official 18:da299f395b9e 125 # define CONF_CLOCK_DPLL_OUTPUT_FREQUENCY 48000000
mbed_official 18:da299f395b9e 126
mbed_official 18:da299f395b9e 127 /* DPLL GCLK reference configuration */
mbed_official 18:da299f395b9e 128 # define CONF_CLOCK_DPLL_REFERENCE_GCLK_GENERATOR GCLK_GENERATOR_1
mbed_official 18:da299f395b9e 129 /* DPLL GCLK lock timer configuration */
mbed_official 18:da299f395b9e 130 # define CONF_CLOCK_DPLL_LOCK_GCLK_GENERATOR GCLK_GENERATOR_1
mbed_official 18:da299f395b9e 131
mbed_official 18:da299f395b9e 132
mbed_official 18:da299f395b9e 133 /* Set this to true to configure the GCLK when running clocks_init. If set to
mbed_official 18:da299f395b9e 134 * false, none of the GCLK generators will be configured in clocks_init(). */
mbed_official 18:da299f395b9e 135 # define CONF_CLOCK_CONFIGURE_GCLK true
mbed_official 18:da299f395b9e 136
mbed_official 18:da299f395b9e 137 /* Configure GCLK generator 0 (Main Clock) */
mbed_official 18:da299f395b9e 138 # define CONF_CLOCK_GCLK_0_ENABLE true
mbed_official 18:da299f395b9e 139 # define CONF_CLOCK_GCLK_0_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 140 # define CONF_CLOCK_GCLK_0_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC16M
mbed_official 18:da299f395b9e 141 # define CONF_CLOCK_GCLK_0_PRESCALER 1
mbed_official 18:da299f395b9e 142 # define CONF_CLOCK_GCLK_0_OUTPUT_ENABLE false
mbed_official 18:da299f395b9e 143
mbed_official 18:da299f395b9e 144 /* Configure GCLK generator 1 */
mbed_official 18:da299f395b9e 145 # define CONF_CLOCK_GCLK_1_ENABLE false
mbed_official 18:da299f395b9e 146 # define CONF_CLOCK_GCLK_1_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 147 # define CONF_CLOCK_GCLK_1_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_XOSC32K
mbed_official 18:da299f395b9e 148 # define CONF_CLOCK_GCLK_1_PRESCALER 1
mbed_official 18:da299f395b9e 149 # define CONF_CLOCK_GCLK_1_OUTPUT_ENABLE false
mbed_official 18:da299f395b9e 150
mbed_official 18:da299f395b9e 151 /* Configure GCLK generator 2 */
mbed_official 18:da299f395b9e 152 # define CONF_CLOCK_GCLK_2_ENABLE false
mbed_official 18:da299f395b9e 153 # define CONF_CLOCK_GCLK_2_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 154 # define CONF_CLOCK_GCLK_2_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC16M
mbed_official 18:da299f395b9e 155 # define CONF_CLOCK_GCLK_2_PRESCALER 1
mbed_official 18:da299f395b9e 156 # define CONF_CLOCK_GCLK_2_OUTPUT_ENABLE false
mbed_official 18:da299f395b9e 157
mbed_official 18:da299f395b9e 158 /* Configure GCLK generator 3 */
mbed_official 18:da299f395b9e 159 # define CONF_CLOCK_GCLK_3_ENABLE false
mbed_official 18:da299f395b9e 160 # define CONF_CLOCK_GCLK_3_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 161 # define CONF_CLOCK_GCLK_3_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC16M
mbed_official 18:da299f395b9e 162 # define CONF_CLOCK_GCLK_3_PRESCALER 1
mbed_official 18:da299f395b9e 163 # define CONF_CLOCK_GCLK_3_OUTPUT_ENABLE false
mbed_official 18:da299f395b9e 164
mbed_official 18:da299f395b9e 165 /* Configure GCLK generator 4 */
mbed_official 18:da299f395b9e 166 # define CONF_CLOCK_GCLK_4_ENABLE false
mbed_official 18:da299f395b9e 167 # define CONF_CLOCK_GCLK_4_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 168 # define CONF_CLOCK_GCLK_4_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC16M
mbed_official 18:da299f395b9e 169 # define CONF_CLOCK_GCLK_4_PRESCALER 1
mbed_official 18:da299f395b9e 170 # define CONF_CLOCK_GCLK_4_OUTPUT_ENABLE false
mbed_official 18:da299f395b9e 171
mbed_official 18:da299f395b9e 172 /* Configure GCLK generator 5 */
mbed_official 18:da299f395b9e 173 # define CONF_CLOCK_GCLK_5_ENABLE false
mbed_official 18:da299f395b9e 174 # define CONF_CLOCK_GCLK_5_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 175 # define CONF_CLOCK_GCLK_5_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC16M
mbed_official 18:da299f395b9e 176 # define CONF_CLOCK_GCLK_5_PRESCALER 1
mbed_official 18:da299f395b9e 177 # define CONF_CLOCK_GCLK_5_OUTPUT_ENABLE false
mbed_official 18:da299f395b9e 178
mbed_official 18:da299f395b9e 179 /* Configure GCLK generator 6 */
mbed_official 18:da299f395b9e 180 # define CONF_CLOCK_GCLK_6_ENABLE false
mbed_official 18:da299f395b9e 181 # define CONF_CLOCK_GCLK_6_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 182 # define CONF_CLOCK_GCLK_6_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC16M
mbed_official 18:da299f395b9e 183 # define CONF_CLOCK_GCLK_6_PRESCALER 1
mbed_official 18:da299f395b9e 184 # define CONF_CLOCK_GCLK_6_OUTPUT_ENABLE false
mbed_official 18:da299f395b9e 185
mbed_official 18:da299f395b9e 186 /* Configure GCLK generator 7 */
mbed_official 18:da299f395b9e 187 # define CONF_CLOCK_GCLK_7_ENABLE false
mbed_official 18:da299f395b9e 188 # define CONF_CLOCK_GCLK_7_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 189 # define CONF_CLOCK_GCLK_7_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC16M
mbed_official 18:da299f395b9e 190 # define CONF_CLOCK_GCLK_7_PRESCALER 1
mbed_official 18:da299f395b9e 191 # define CONF_CLOCK_GCLK_7_OUTPUT_ENABLE false
mbed_official 18:da299f395b9e 192
mbed_official 18:da299f395b9e 193 /* Configure GCLK generator 8 */
mbed_official 18:da299f395b9e 194 # define CONF_CLOCK_GCLK_8_ENABLE false
mbed_official 18:da299f395b9e 195 # define CONF_CLOCK_GCLK_8_RUN_IN_STANDBY false
mbed_official 18:da299f395b9e 196 # define CONF_CLOCK_GCLK_8_CLOCK_SOURCE SYSTEM_CLOCK_SOURCE_OSC16M
mbed_official 18:da299f395b9e 197 # define CONF_CLOCK_GCLK_8_PRESCALER 1
mbed_official 18:da299f395b9e 198 # define CONF_CLOCK_GCLK_8_OUTPUT_ENABLE false
mbed_official 18:da299f395b9e 199 #endif /* CONF_CLOCKS_H_INCLUDED */
mbed_official 18:da299f395b9e 200