658 lines
26 KiB
C
658 lines
26 KiB
C
/****************************************************************************
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* boards/arm/samd2l2/saml21-xplained/include/board.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_ARM_SAMD2L2_SAML21_XPLAINED_INCLUDE_BOARD_H
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#define __BOARDS_ARM_SAMD2L2_SAML21_XPLAINED_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifndef __ASSEMBLY__
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# include <stdint.h>
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# ifdef CONFIG_SAMD2L2_GPIOIRQ
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# include <arch/irq.h>
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# endif
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Clocking *****************************************************************/
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/* Overview
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*
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* Since there is no high speed crystal, we will run from the OSC16M clock
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* source.
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* We will use its default, POR frequency of 4MHz to avoid an additional
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* clock switch.
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*
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* OSC16M Output = 4MHz
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* `- GCLK1 Input = 4MHz Prescaler = 1 output = 4MHz
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* `- DFLL Input = 4MHz Multiplier = 12 output = 48MHz
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* `- GCLK0 Input = 48MHz Prescaler = 1 output = 48MHz
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* `- MCLK Input = 48Mhz CPU divider = 1 CPU frequency = 48MHz
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* APBA divider = 1 APBA frequency = 48MHz
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* APBB divider = 1 APBB frequency = 48MHz
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* APBC divider = 1 APBC frequency = 48MHz
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* APBD divider = 1 APBD frequency = 48MHz
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* APBE divider = 1 APBE frequency = 48MHz
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*
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* The SAML21 Xplained Pro has one on-board crystal:
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*
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* XC101 32.768KHz XOSC32
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*
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* REVISIT: Not currently used, may want to use as GCLK1 source with
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* DFLL multiplier of ((48000000+16384)/32768) = 1465 which would yield
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* a clock of 48,005,120 MHz.
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*/
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/* XOSC Configuration -- Not available
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*
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* BOARD_XOSC_ENABLE - Boolean (defined / not defined)
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* BOARD_XOSC_FREQUENCY - In Hz
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* BOARD_XOSC_STARTUPTIME - See SYSCTRL_XOSC_STARTUP_* definitions
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* BOARD_XOSC_ISCRYSTAL - Boolean (defined / not defined)
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* BOARD_XOSC_AMPGC - Boolean (defined / not defined)
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* BOARD_XOSC_ONDEMAND - Boolean (defined / not defined)
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* BOARD_XOSC_RUNINSTANDBY - Boolean (defined / not defined)
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*/
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#undef BOARD_XOSC_ENABLE
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#define BOARD_XOSC_FREQUENCY 12000000UL
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#define BOARD_XOSC_STARTUPTIME SYSCTRL_XOSC_STARTUP_1S
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#define BOARD_XOSC_ISCRYSTAL 1
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#define BOARD_XOSC_AMPGC 1
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#define BOARD_XOSC_ONDEMAND 1
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#undef BOARD_XOSC_RUNINSTANDBY
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/* XOSC32 Configuration -- Not used
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*
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* BOARD_XOSC32K_ENABLE - Boolean (defined / not defined)
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* BOARD_XOSC32K_FREQUENCY - In Hz
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* BOARD_XOSC32K_STARTUPTIME - See SYSCTRL_XOSC32K_STARTUP_* definitions
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* BOARD_XOSC32K_ISCRYSTAL - Boolean (defined / not defined)
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* BOARD_XOSC32K_AAMPEN - Boolean (defined / not defined)
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* BOARD_XOSC32K_EN1KHZ - Boolean (defined / not defined)
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* BOARD_XOSC32K_EN32KHZ - Boolean (defined / not defined)
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* BOARD_XOSC32K_ONDEMAND - Boolean (defined / not defined)
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* BOARD_XOSC32K_RUNINSTANDBY - Boolean (defined / not defined)
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* BOARD_XOSC32K_WRITELOCK - Boolean (defined / not defined)
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*/
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#undef BOARD_XOSC32K_ENABLE
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#ifdef CONFIG_SAML21_XPLAINED_XOSC32K
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# define BOARD_XOSC32K_ENABLE 1
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# define BOARD_XOSC32K_FREQUENCY 32768 /* 32.768KHz XTAL */
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# define BOARD_XOSC32K_STARTUPTIME OSC32KCTRL_XOSC32K_STARTUP_100MS
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# define BOARD_XOSC32K_ISCRYSTAL 1
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# undef BOARD_XOSC32K_EN1KHZ
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# define BOARD_XOSC32K_EN32KHZ 1
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# define BOARD_XOSC32K_ONDEMAND 1
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# undef BOARD_XOSC32K_RUNINSTANDBY
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# undef BOARD_XOSC32K_WRITELOCK
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#endif
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/* OSC32 Configuration -- not used
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*
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* BOARD_OSC32K_ENABLE - Boolean (defined / not defined)
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* BOARD_OSC32K_FREQUENCY - In Hz
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* BOARD_OSC32K_STARTUPTIME - See SYSCTRL_OSC32K_STARTUP_* definitions
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* BOARD_OSC32K_EN1KHZ - Boolean (defined / not defined)
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* BOARD_OSC32K_EN32KHZ - Boolean (defined / not defined)
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* BOARD_OSC32K_ONDEMAND - Boolean (defined / not defined)
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* BOARD_OSC32K_RUNINSTANDBY - Boolean (defined / not defined)
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* BOARD_OSC32K_WRITELOCK - Boolean (defined / not defined)
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*/
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#undef BOARD_OSC32K_ENABLE
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#define BOARD_OSC32K_FREQUENCY 32768 /* 32.768kHz internal oscillator */
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#define BOARD_OSC32K_STARTUPTIME SYSCTRL_OSC32K_STARTUP_4MS
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#define BOARD_OSC32K_EN1KHZ 1
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#define BOARD_OSC32K_EN32KHZ 1
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#define BOARD_OSC32K_ONDEMAND 1
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#undef BOARD_OSC32K_RUNINSTANDBY
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#undef BOARD_OSC32K_WRITELOCK
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/* OSC16M Configuration -- always enabled
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*
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* BOARD_OSC16M_FSEL - See OSCCTRL_OSC16MCTRL_FSEL_* definitions
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* BOARD_OSC16M_ONDEMAND - Boolean (defined / not defined)
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* BOARD_OSC16M_RUNINSTANDBY - Boolean (defined / not defined)
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*/
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#if defined(CONFIG_SAML21_XPLAINED_OSC16M_4MHZ)
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# define BOARD_OSC16M_FSEL OSCCTRL_OSC16MCTRL_FSEL_4MHZ
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# define BOARD_OSC16M_ONDEMAND 1
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# undef BOARD_OSC16M_RUNINSTANDBY
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# define BOARD_OSC16M_FREQUENCY 4000000 /* 4MHz high-accuracy internal oscillator */
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#elif defined(CONFIG_SAML21_XPLAINED_OSC16M_8MHZ)
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# define BOARD_OSC16M_FSEL OSCCTRL_OSC16MCTRL_FSEL_8MHZ
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# define BOARD_OSC16M_ONDEMAND 1
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# undef BOARD_OSC16M_RUNINSTANDBY
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# define BOARD_OSC16M_FREQUENCY 8000000 /* 8MHz high-accuracy internal oscillator */
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#elif defined(CONFIG_SAML21_XPLAINED_OSC16M_12MHZ)
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# define BOARD_OSC16M_FSEL OSCCTRL_OSC16MCTRL_FSEL_12MHZ
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# define BOARD_OSC16M_ONDEMAND 1
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# undef BOARD_OSC16M_RUNINSTANDBY
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# define BOARD_OSC16M_FREQUENCY 12000000 /* 12MHz high-accuracy internal oscillator */
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#elif defined(CONFIG_SAML21_XPLAINED_OSC16M_16MHZ)
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# define BOARD_OSC16M_FSEL OSCCTRL_OSC16MCTRL_FSEL_16MHZ
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# define BOARD_OSC16M_ONDEMAND 1
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# undef BOARD_OSC16M_RUNINSTANDBY
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# define BOARD_OSC16M_FREQUENCY 16000000 /* 18MHz high-accuracy internal oscillator */
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#else
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# error OSC16M operating frequency not defined (CONFIG_SAML21_XPLAINED_OSC16M_*MHZ)
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#endif
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/* OSCULP32K Configuration -- not used. */
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#define BOARD_OSCULP32K_FREQUENCY 32000 /* 32kHz ultra-low-power internal oscillator */
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/* Digital Frequency Locked Loop configuration. In closed-loop mode, the
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* DFLL output frequency (Fdfll) is given by:
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*
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* Fdfll = DFLLmul * Frefclk
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* = 12 * 4000000 = 48MHz
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*
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* Where the reference clock is Generic Clock Channel 0 output of GLCK1.
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* GCLCK1 provides OSC16M, undivided.
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*
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* When operating in open-loop mode, the output frequency of the DFLL will
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* be determined by the values written to the DFLL Coarse Value bit group
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* and the DFLL Fine Value bit group in the DFLL Value register.
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*
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* BOARD_DFLL48M_CLOSEDLOOP - Boolean (defined / not defined)
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* BOARD_DFLL48M_OPENLOOP - Boolean (defined / not defined)
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* BOARD_DFLL48M_RECOVERY - Boolean (defined / not defined)
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* BOARD_DFLL48M_TRACKAFTERFINELOCK - Boolean (defined / not defined)
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* BOARD_DFLL48M_KEEPLOCKONWAKEUP - Boolean (defined / not defined)
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* BOARD_DFLL48M_ENABLECHILLCYCLE - Boolean (defined / not defined)
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* BOARD_DFLL48M_QUICKLOCK - Boolean (defined / not defined)
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* BOARD_DFLL48M_RUNINSTDBY - Boolean (defined / not defined)
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* BOARD_DFLL48M_ONDEMAND - Boolean (defined / not defined)
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*
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* Closed loop mode only:
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* BOARD_DFLL48M_REFCLK_CLKGEN - GCLK index in the range {0..8}
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* BOARD_DFLL48M_MULTIPLIER - Value
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* BOARD_DFLL48M_MAXCOARSESTEP - Value
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* BOARD_DFLL48M_MAXFINESTEP - Value
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*
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* BOARD_DFLL48M_FREQUENCY - The resulting frequency
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*/
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#undef BOARD_DFLL48M_ENABLE 1 /* Assume not using the DFLL48M */
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#undef BOARD_DFLL48M_CLOSEDLOOP
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#undef BOARD_DFLL48M_OPENLOOP
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#undef BOARD_DFLL48M_RECOVERY
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#ifdef CONFIG_SAML21_XPLAINED_DFLL
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# define BOARD_DFLL48M_ENABLE 1 /* Using the DFLL48M */
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/* DFLL mode of operation */
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# if defined(CONFIG_SAML21_XPLAINED_DFLL_OPENLOOP)
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# define BOARD_DFLL48M_OPENLOOP 1 /* In open loop mode */
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# elif defined(CONFIG_SAML21_XPLAINED_DFLL_CLOSEDLOOP)
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# define BOARD_DFLL48M_CLOSEDLOOP 1 /* In closed loop mode */
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# elif defined(CONFIG_SAML21_XPLAINED_DFLL_RECOVERY)
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# define BOARD_DFLL48M_RECOVERY 1 /* In USB recover mode */
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# else
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# error DFLL mode not provided
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# endif
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/* DFLL source clock selection */
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# if defined(CONFIG_SAML21_XPLAINED_DFLL_OSC16MSRC)
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# define BOARD_DFLL_SRC_FREQUENCY BOARD_OSC16M_FREQUENCY
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# elif defined(CONFIG_SAML21_XPLAINED_DFLL_XOSC32KSRC)
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# define BOARD_DFLL_SRC_FREQUENCY BOARD_XOSC32K_FREQUENCY
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# else
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# error DFLL clock source not provided
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# endif
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/* Mode-independent options */
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# undef BOARD_DFLL48M_RUNINSTDBY
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# undef BOARD_DFLL48M_ONDEMAND
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/* DFLL closed loop mode configuration */
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# define BOARD_DFLL48M_REFCLK_CLKGEN 1
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# define BOARD_DFLL48M_MULTIPLIER (48000000 / BOARD_DFLL_SRC_FREQUENCY)
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# define BOARD_DFLL48M_QUICKLOCK 1
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# define BOARD_DFLL48M_TRACKAFTERFINELOCK 1
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# define BOARD_DFLL48M_KEEPLOCKONWAKEUP 1
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# define BOARD_DFLL48M_ENABLECHILLCYCLE 1
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# define BOARD_DFLL48M_MAXCOARSESTEP (0x1f / 4)
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# define BOARD_DFLL48M_MAXFINESTEP (0xff / 4)
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# ifdef CONFIG_SAML21_XPLAINED_DFLL_OPENLOOP
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# define BOARD_DFLL48M_FREQUENCY (13720000) /* REVISIT: Needs to be measured */
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# else
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# define BOARD_DFLL48M_FREQUENCY (BOARD_DFLL48M_MULTIPLIER * BOARD_DFLL_SRC_FREQUENCY)
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# endif
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#endif
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/* Fractional Digital Phase Locked Loop configuration.
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*
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* BOARD_FDPLL96M_ENABLE - Boolean (defined / not defined)
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* BOARD_FDPLL96M_RUNINSTDBY - Boolean (defined / not defined)
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* BOARD_FDPLL96M_ONDEMAND - Boolean (defined / not defined)
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* BOARD_FDPLL96M_LBYPASS - Boolean (defined / not defined)
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* BOARD_FDPLL96M_WUF - Boolean (defined / not defined)
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* BOARD_FDPLL96M_LPEN - Boolean (defined / not defined)
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* BOARD_FDPLL96M_FILTER - See OSCCTRL_DPLLCTRLB_FILTER_*
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* definitions
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* BOARD_FDPLL96M_REFCLK - See OSCCTRL_DPLLCTRLB_REFLCK_*
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* definitions
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* BOARD_FDPLL96M_REFCLK_CLKGEN - GCLK index in the range {0..8}
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* BOARD_FDPLL96M_LOCKTIME_ENABLE - Boolean (defined / not defined)
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* BOARD_FDPLL96M_LOCKTIME - See OSCCTRL_DPLLCTRLB_LTIME_*
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* definitions
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* BOARD_FDPLL96M_LOCKTIME_CLKGEN - GCLK index in the range {0..8}
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* BOARD_FDPLL96M_REFDIV - Numeric value, 1 - 2047
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* BOARD_FDPLL96M_PRESCALER - See OSCCTRL_DPLLPRESC_* definitions
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* BOARD_FDPLL96M_REFFREQ - Numeric value
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* BOARD_FDPLL96M_FREQUENCY - Numeric value
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*/
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#undef BOARD_FDPLL96M_ENABLE
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#undef BOARD_FDPLL96M_RUNINSTDBY
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#define BOARD_FDPLL96M_ONDEMAND 1
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#undef BOARD_FDPLL96M_LBYPASS
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#undef BOARD_FDPLL96M_WUF
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#undef BOARD_FDPLL96M_LPEN
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#define BOARD_FDPLL96M_FILTER OSCCTRL_DPLLCTRLB_FILTER_DEFAULT
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#define BOARD_FDPLL96M_REFCLK OSCCTRL_DPLLCTRLB_REFLCK_XOSCK32K
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#define BOARD_FDPLL96M_REFCLK_CLKGEN 1
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#undef BOARD_FDPLL96M_LOCKTIME_ENABLE
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#define BOARD_FDPLL96M_LOCKTIME OSCCTRL_DPLLCTRLB_LTIME_NONE
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#define BOARD_FDPLL96M_LOCKTIME_CLKGEN 1
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#define BOARD_FDPLL96M_REFDIV 1
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#define BOARD_FDPLL96M_PRESCALER OSCCTRL_DPLLPRESC_DIV1
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#define BOARD_FDPLL96M_REFFREQ 32768
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#define BOARD_FDPLL96M_FREQUENCY 48000000
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/* GCLK Configuration
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*
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* Global enable/disable.
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*
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* BOARD_GCLK_ENABLE - *MUST* be defined
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*
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* For n=1-7:
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* BOARD_GCLKn_ENABLE - Boolean (defined / not defined)
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*
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* For n=0-8:
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* BOARD_GCLKn_RUN_IN_STANDBY - Boolean (defined / not defined)
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* BOARD_GCLKn_CLOCK_SOURCE - See GCLK_GENCTRL_SRC_* definitions
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* BOARD_GCLKn_PRESCALER - Value
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* BOARD_GCLKn_OUTPUT_ENABLE - Boolean (defined / not defined)
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*/
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#define BOARD_GCLK_ENABLE 1
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/* GCLK generator 0 (Main Clock) - Source is the DFLL */
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#ifdef CONFIG_SAML21_XPLAINED_DFLL
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# undef BOARD_GCLK0_RUN_IN_STANDBY
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# define BOARD_GCLK0_CLOCK_SOURCE GCLK_GENCTRL_SRC_DFLL48M
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# define BOARD_GCLK0_PRESCALER 1
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# undef BOARD_GCLK0_OUTPUT_ENABLE
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# define BOARD_GCLK0_FREQUENCY (BOARD_DFLL48M_FREQUENCY / BOARD_GCLK0_PRESCALER)
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#else
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# undef BOARD_GCLK0_RUN_IN_STANDBY
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# define BOARD_GCLK0_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC16M
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# define BOARD_GCLK0_PRESCALER 1
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# undef BOARD_GCLK0_OUTPUT_ENABLE
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# define BOARD_GCLK0_FREQUENCY (BOARD_OSC16M_FREQUENCY / BOARD_GCLK0_PRESCALER)
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#endif
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/* Configure GCLK generator 1 - Drives the DFLL */
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#if defined(CONFIG_SAML21_XPLAINED_DFLL_OSC16MSRC)
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# define BOARD_GCLK1_ENABLE 1
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# undef BOARD_GCLK1_RUN_IN_STANDBY
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# define BOARD_GCLK1_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC16M
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# define BOARD_GCLK1_PRESCALER 1
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# undef BOARD_GCLK1_OUTPUT_ENABLE
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# define BOARD_GCLK1_FREQUENCY (BOARD_OSC16M_FREQUENCY / BOARD_GCLK1_PRESCALER)
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#elif defined(CONFIG_SAML21_XPLAINED_DFLL_XOSC32KSRC)
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# define BOARD_GCLK1_ENABLE 1
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# undef BOARD_GCLK1_RUN_IN_STANDBY
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# define BOARD_GCLK1_CLOCK_SOURCE GCLK_GENCTRL_SRC_XOSC32K
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# define BOARD_GCLK1_PRESCALER 1
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# undef BOARD_GCLK1_OUTPUT_ENABLE
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# define BOARD_GCLK1_FREQUENCY (BOARD_XOSC32K_FREQUENCY / BOARD_GCLK1_PRESCALER)
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#else
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# error DFLL clock source not provided
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#endif
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/* Configure GCLK generator 2 (RTC) */
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#undef BOARD_GCLK2_ENABLE
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#undef BOARD_GCLK2_RUN_IN_STANDBY
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#define BOARD_GCLK2_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC32K
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#define BOARD_GCLK2_PRESCALER 32
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#undef BOARD_GCLK2_OUTPUT_ENABLE
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#define BOARD_GCLK2_FREQUENCY (BOARD_OSC32K_FREQUENCY / BOARD_GCLK2_PRESCALER)
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/* Configure GCLK generator 3 */
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#undef BOARD_GCLK3_ENABLE
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#undef BOARD_GCLK3_RUN_IN_STANDBY
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#define BOARD_GCLK3_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC16M
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#define BOARD_GCLK3_PRESCALER 1
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#undef BOARD_GCLK3_OUTPUT_ENABLE
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#define BOARD_GCLK3_FREQUENCY (BOARD_OSC16M_FREQUENCY / BOARD_GCLK3_PRESCALER)
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/* Configure GCLK generator 4 */
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#undef BOARD_GCLK4_ENABLE
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#undef BOARD_GCLK4_RUN_IN_STANDBY
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#define BOARD_GCLK4_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC16M
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#define BOARD_GCLK4_PRESCALER 1
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#undef BOARD_GCLK4_OUTPUT_ENABLE
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#define BOARD_GCLK4_FREQUENCY (BOARD_OSC16M_FREQUENCY / BOARD_GCLK4_PRESCALER)
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/* Configure GCLK generator 5 */
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#undef BOARD_GCLK5_ENABLE
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#undef BOARD_GCLK5_RUN_IN_STANDBY
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#define BOARD_GCLK5_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC16M
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#define BOARD_GCLK5_PRESCALER 1
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#undef BOARD_GCLK5_OUTPUT_ENABLE
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#define BOARD_GCLK5_FREQUENCY (BOARD_OSC16M_FREQUENCY / BOARD_GCLK5_PRESCALER)
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|
|
/* Configure GCLK generator 6 */
|
|
|
|
#undef BOARD_GCLK6_ENABLE
|
|
#undef BOARD_GCLK6_RUN_IN_STANDBY
|
|
#define BOARD_GCLK6_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC16M
|
|
#define BOARD_GCLK6_PRESCALER 1
|
|
#undef BOARD_GCLK6_OUTPUT_ENABLE
|
|
#define BOARD_GCLK6_FREQUENCY (BOARD_OSC16M_FREQUENCY / BOARD_GCLK6_PRESCALER)
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|
|
|
/* Configure GCLK generator 7 */
|
|
|
|
#undef BOARD_GCLK7_ENABLE
|
|
#undef BOARD_GCLK7_RUN_IN_STANDBY
|
|
#define BOARD_GCLK7_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC16M
|
|
#define BOARD_GCLK7_PRESCALER 1
|
|
#undef BOARD_GCLK7_OUTPUT_ENABLE
|
|
#define BOARD_GCLK7_FREQUENCY (BOARD_OSC16M_FREQUENCY / BOARD_GCLK7_PRESCALER)
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|
|
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/* Configure GCLK generator 8 */
|
|
|
|
#undef BOARD_GCLK8_ENABLE
|
|
#undef BOARD_GCLK8_RUN_IN_STANDBY
|
|
#define BOARD_GCLK8_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC16M
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|
#define BOARD_GCLK8_PRESCALER 1
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|
#undef BOARD_GCLK8_OUTPUT_ENABLE
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|
#define BOARD_GCLK8_FREQUENCY (BOARD_OSC16M_FREQUENCY / BOARD_GCLK8_PRESCALER)
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/* The source of the main clock is always GCLK_MAIN. Also called GCLKGEN[0],
|
|
* this is the clock feeding the Power Manager.
|
|
* The Power Manager, in turn, generates main clock which is divided
|
|
* down to produce the CPU, AHB, and APB clocks.
|
|
*
|
|
* The main clock is initially OSC16M divided by 8.
|
|
*/
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|
|
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#define BOARD_GCLK_MAIN_FREQUENCY BOARD_GCLK0_FREQUENCY
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/* Main clock dividers
|
|
*
|
|
* BOARD_CPU_DIVIDER - See MCLK_CPUDIV_DIV* definitions
|
|
* BOARD_CPU_FREQUENCY - In Hz
|
|
* BOARD_CPU_FAILDECT - Boolean (defined / not defined)
|
|
* BOARD_LOWPOWER_DIVIDER - See MCLK_LPDIV_DIV_* definitions
|
|
* BOARD_LOWPOWER_FREQUENCY - In Hz
|
|
* BOARD_BACKUP_DIVIDER - See MCLK_BUPDIV_DIV_* definitions
|
|
* BOARD_BACKUP_FREQUENCY - In Hz
|
|
*/
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|
|
|
#undef BOARD_CPU_FAILDECT
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|
#define BOARD_CPU_DIVIDER MCLK_CPUDIV_DIV1
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|
#define BOARD_LOWPOWER_DIVIDER MCLK_LPDIV_DIV1
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#define BOARD_BACKUP_DIVIDER MCLK_BUPDIV_DIV1
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|
|
/* Resulting frequencies */
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|
|
|
#define BOARD_MCK_FREQUENCY (BOARD_GCLK_MAIN_FREQUENCY)
|
|
#define BOARD_CPU_FREQUENCY (BOARD_MCK_FREQUENCY)
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|
#define BOARD_LOWPOWER_FREQUENCY (BOARD_MCK_FREQUENCY)
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|
#define BOARD_BACKUP_FREQUENCY (BOARD_MCK_FREQUENCY)
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|
#define BOARD_APBA_FREQUENCY (BOARD_MCK_FREQUENCY)
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|
#define BOARD_APBB_FREQUENCY (BOARD_MCK_FREQUENCY)
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|
#define BOARD_APBC_FREQUENCY (BOARD_MCK_FREQUENCY)
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|
#define BOARD_APBD_FREQUENCY (BOARD_MCK_FREQUENCY)
|
|
#define BOARD_APBE_FREQUENCY (BOARD_MCK_FREQUENCY)
|
|
|
|
/* FLASH wait states
|
|
*
|
|
* REVISIT: These values come from the SAMD20
|
|
* Vdd Range Wait states Maximum Operating Frequency
|
|
* ------------- -------------- ---------------------------
|
|
* 1.62V to 2.7V 0 14 MHz
|
|
* 1 28 MHz
|
|
* 2 42 MHz
|
|
* 3 48 MHz
|
|
* 2.7V to 3.63V 0 24 MHz
|
|
* 1 48 MHz
|
|
*/
|
|
|
|
#if 0
|
|
# define BOARD_FLASH_WAITSTATES 3
|
|
#else
|
|
# define BOARD_FLASH_WAITSTATES 1
|
|
#endif
|
|
|
|
/* SERCOM definitions *******************************************************/
|
|
|
|
/* This is the source clock generator for the GCLK_SERCOM_SLOW clock that is
|
|
* common to SERCOM modules 0-4.
|
|
* It will generate clocking on the common SERCOM0-4 channel.
|
|
*
|
|
* SERCOM5 uses a different channel and will probably need to use a different
|
|
* GCLK generator.
|
|
*/
|
|
|
|
#define BOARD_SERCOM04_SLOW_GCLKGEN 0
|
|
|
|
/* SERCOM0 SPI is available on EXT1
|
|
*
|
|
* PIN PORT SERCOM FUNCTION
|
|
* --- ------------------ -----------
|
|
* 15 PA5 SERCOM0 PAD1 SPI SS
|
|
* 16 PA6 SERCOM0 PAD2 SPI MOSI
|
|
* 17 PA4 SERCOM0 PAD0 SPI MISO
|
|
* 18 PA7 SERCOM0 PAD3 SPI SCK
|
|
*/
|
|
|
|
#define BOARD_SERCOM0_GCLKGEN 0
|
|
#define BOARD_SERCOM0_SLOW_GCLKGEN BOARD_SERCOM04_SLOW_GCLKGEN
|
|
#define BOARD_SERCOM0_MUXCONFIG (SPI_CTRLA_DOPO_DOPAD231 | SPI_CTRLA_DIPAD0)
|
|
#define BOARD_SERCOM0_PINMAP_PAD0 PORT_SERCOM0_PAD0_2 /* SPI_MISO */
|
|
#define BOARD_SERCOM0_PINMAP_PAD1 0 /* SPI_SS (not used) */
|
|
#define BOARD_SERCOM0_PINMAP_PAD2 PORT_SERCOM0_PAD2_2 /* SPI_MOSI */
|
|
#define BOARD_SERCOM0_PINMAP_PAD3 PORT_SERCOM0_PAD3_2 /* SPI_SCK */
|
|
|
|
#define BOARD_SERCOM0_FREQUENCY BOARD_GCLK0_FREQUENCY
|
|
|
|
/* SERCOM1 USART is available on EXT2 and EXT3
|
|
*
|
|
* PIN EXT1 EXT2 EXT3 GPIO Function
|
|
* ---- ---- ---- ---- ------------------
|
|
* 13 --- PA19 PA19 SERCOM1 / USART RX
|
|
* 14 --- PA18 PA18 SERCOM1 / USART TX
|
|
* 19 GND GND GND N/A
|
|
* 20 VCC VCC VCC N/A
|
|
*/
|
|
|
|
#define BOARD_SERCOM1_GCLKGEN 0
|
|
#define BOARD_SERCOM1_SLOW_GCLKGEN BOARD_SERCOM04_SLOW_GCLKGEN
|
|
#define BOARD_SERCOM1_MUXCONFIG (USART_CTRLA_TXPAD2 | USART_CTRLA_RXPAD3)
|
|
#define BOARD_SERCOM1_PINMAP_PAD0 0 /* (not used) */
|
|
#define BOARD_SERCOM1_PINMAP_PAD1 0 /* (not used) */
|
|
#define BOARD_SERCOM1_PINMAP_PAD2 PORT_SERCOM1_PAD2_1 /* USART_TX */
|
|
#define BOARD_SERCOM1_PINMAP_PAD3 PORT_SERCOM1_PAD3_1 /* USART_RX */
|
|
|
|
#define BOARD_SERCOM1_FREQUENCY BOARD_GCLK0_FREQUENCY
|
|
|
|
/* The SAML21 Xplained Pro contains an Embedded Debugger (EDBG) that can be
|
|
* used to program and debug the ATSAML21J18A using Serial Wire Debug (SWD).
|
|
* The Embedded debugger also include a Virtual COM port interface over
|
|
* SERCOM3. Virtual COM port connections:
|
|
*
|
|
* PA22 SERCOM3 PAD[0] / USART TXD
|
|
* PA23 SERCOM3 PAD[1] / USART RXD
|
|
*/
|
|
|
|
#define BOARD_SERCOM3_GCLKGEN 0
|
|
#define BOARD_SERCOM3_SLOW_GCLKGEN BOARD_SERCOM04_SLOW_GCLKGEN
|
|
#define BOARD_SERCOM3_MUXCONFIG (USART_CTRLA_RXPAD1 | USART_CTRLA_TXPAD0_2)
|
|
#define BOARD_SERCOM3_PINMAP_PAD0 PORT_SERCOM3_PAD0_1 /* USART TX */
|
|
#define BOARD_SERCOM3_PINMAP_PAD1 PORT_SERCOM3_PAD1_1 /* USART RX */
|
|
#define BOARD_SERCOM3_PINMAP_PAD2 0 /* (not used) */
|
|
#define BOARD_SERCOM3_PINMAP_PAD3 0 /* (not used) */
|
|
|
|
#define BOARD_SERCOM3_FREQUENCY BOARD_GCLK0_FREQUENCY
|
|
|
|
/* The SERCOM4 USART is available on EXT1
|
|
*
|
|
* PIN EXT1 EXT2 EXT3 GPIO Function
|
|
* ---- ---- ---- ---- ------------------
|
|
* 13 PB09 --- --- SERCOM4 PAD[1] / USART RX
|
|
* 14 PB08 --- --- SERCOM4 PAD[0] / USART TX
|
|
* 19 GND GND GND N/A
|
|
* 20 VCC VCC VCC N/A
|
|
*/
|
|
|
|
#define BOARD_SERCOM4_GCLKGEN 0
|
|
#define BOARD_SERCOM4_SLOW_GCLKGEN BOARD_SERCOM04_SLOW_GCLKGEN
|
|
#define BOARD_SERCOM4_MUXCONFIG (USART_CTRLA_RXPAD1 | USART_CTRLA_TXPAD0_2)
|
|
#define BOARD_SERCOM4_PINMAP_PAD0 PORT_SERCOM4_PAD0_3 /* USART TX */
|
|
#define BOARD_SERCOM4_PINMAP_PAD1 PORT_SERCOM4_PAD1_3 /* USART RX */
|
|
#define BOARD_SERCOM4_PINMAP_PAD2 0
|
|
#define BOARD_SERCOM4_PINMAP_PAD3 0
|
|
|
|
#define BOARD_SERCOM4_FREQUENCY BOARD_GCLK0_FREQUENCY
|
|
|
|
/* SERCOM5 is dedicated for use with SPI at the EXT2 and EXT3 connectors
|
|
*
|
|
* PIN PORT SERCOM FUNCTION
|
|
* --- ------------------ -----------
|
|
* 15 PB17 SERCOM5 PAD1 SPI SS
|
|
* 16 PB22 SERCOM5 PAD2 SPI MOSI
|
|
* 17 PB16 SERCOM5 PAD0 SPI MISO
|
|
* 18 PB23 SERCOM5 PAD3 SPI SCK
|
|
*/
|
|
|
|
#define BOARD_SERCOM5_GCLKGEN 0
|
|
#define BOARD_SERCOM5_SLOW_GCLKGEN ?
|
|
#define BOARD_SERCOM5_MUXCONFIG (SPI_CTRLA_DOPO_DOPAD231 | SPI_CTRLA_DIPAD0)
|
|
#define BOARD_SERCOM5_PINMAP_PAD0 PORT_SERCOM5_PAD0_1 /* SPI_MISO */
|
|
#define BOARD_SERCOM5_PINMAP_PAD1 0 /* SPI_SS (not used) */
|
|
#define BOARD_SERCOM5_PINMAP_PAD2 PORT_SERCOM5_PAD2_4 /* SPI_MOSI */
|
|
#define BOARD_SERCOM5_PINMAP_PAD3 PORT_SERCOM5_PAD3_4 /* SPI_SCK */
|
|
|
|
#define BOARD_SERCOM5_FREQUENCY BOARD_GCLK0_FREQUENCY
|
|
|
|
/* USB definitions **********************************************************/
|
|
|
|
/* This is the source clock generator for the GCLK_USB clock
|
|
*/
|
|
|
|
#define BOARD_USB_GCLKGEN 0
|
|
#define BOARD_USB_FREQUENCY BOARD_GCLK0_FREQUENCY
|
|
|
|
/* default USB Pad calibration (not used yet by USB driver) */
|
|
|
|
#define BOARD_USB_PADCAL_P 29
|
|
#define BOARD_USB_PADCAL_N 5
|
|
#define BOARD_USB_PADCAL_TRIM 3
|
|
|
|
/* LED definitions **********************************************************/
|
|
|
|
/* There are three LEDs on board the SAML21 Xplained Pro board: The EDBG
|
|
* controls two of the LEDs, a power LED and a status LED. There is only
|
|
* one user controllable LED, a yellow LED labelled STATUS near the SAML21
|
|
* USB connector.
|
|
*
|
|
* This LED is controlled by PC07 and the LED can be activated by driving
|
|
* the PB10 to GND.
|
|
*/
|
|
|
|
/* LED index values for use with board_userled() */
|
|
|
|
#define BOARD_STATUS_LED 0
|
|
#define BOARD_NLEDS 1
|
|
|
|
/* LED bits for use with board_userled_all() */
|
|
|
|
#define BOARD_STATUS LED_BIT (1 << BOARD_STATUS_LED)
|
|
|
|
/* When CONFIG_ARCH_LEDS is defined in the NuttX configuration, NuttX will
|
|
* control the LED as defined below.
|
|
* Thus if the LED is statically on, NuttX has successfully booted and is,
|
|
* apparently, running normally.
|
|
* If the LED is flashing at approximately 2Hz, then a fatal error has been
|
|
* detected and the system has halted.
|
|
*/
|
|
|
|
#define LED_STARTED 0 /* STATUS LED=OFF */
|
|
#define LED_HEAPALLOCATE 0 /* STATUS LED=OFF */
|
|
#define LED_IRQSENABLED 0 /* STATUS LED=OFF */
|
|
#define LED_STACKCREATED 1 /* STATUS LED=ON */
|
|
#define LED_INIRQ 2 /* STATUS LED=no change */
|
|
#define LED_SIGNAL 2 /* STATUS LED=no change */
|
|
#define LED_ASSERTION 2 /* STATUS LED=no change */
|
|
#define LED_PANIC 3 /* STATUS LED=flashing */
|
|
|
|
/* Button definitions *******************************************************/
|
|
|
|
/* Mechanical buttons:
|
|
*
|
|
* The SAML21 Xplained Pro contains two mechanical buttons.
|
|
* One button is the RESET button connected to the SAML21 reset line and the
|
|
* other is a generic user configurable button.
|
|
* When a button is pressed it will drive the I/O line to GND.
|
|
*
|
|
* PA02 SW0
|
|
*/
|
|
|
|
/* The SAML21 Xplained Pro supports one button: */
|
|
|
|
#define BUTTON_SW0 0
|
|
#define NUM_BUTTONS 1
|
|
|
|
#define BUTTON_SW0_BIT (1 << BUTTON_SW0)
|
|
|
|
#endif /* __BOARDS_ARM_SAMD2L2_SAML21_XPLAINED_INCLUDE_BOARD_H */
|