board: Add support for Adafruit Circuit Express

This commit is contained in:
Brennan Ashton 2021-05-15 22:34:10 -07:00 committed by Alan Carvalho de Assis
parent a81166aef6
commit 2972e7015e
12 changed files with 1149 additions and 0 deletions

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@ -92,6 +92,14 @@ config ARCH_BOARD_C5471EVM
NuttX runs on the ARM core and is built with a GNU arm-nuttx-elf toolchain*.
This port is complete and verified.
config ARCH_BOARD_CIRCUIT_EXPRESS
bool "Adafruit Circuit Express"
depends on ARCH_CHIP_SAMD21G18A
select ARCH_HAVE_LEDS
---help---
This options selects the Adafruit Circuit Express board featuring the Atmel
ATSAMD21 MCU.
config ARCH_BOARD_CLICKER2_STM32
bool "Mikroe Clicker2 STM32"
depends on ARCH_CHIP_STM32F407VG
@ -2261,6 +2269,7 @@ config ARCH_BOARD
default "bambino-200e" if ARCH_BOARD_BAMBINO_200E
default "bl602evb" if ARCH_BOARD_BL602EVB
default "c5471evm" if ARCH_BOARD_C5471EVM
default "circuit-express" if ARCH_BOARD_CIRCUIT_EXPRESS
default "clicker2-stm32" if ARCH_BOARD_CLICKER2_STM32
default "cloudctrl" if ARCH_BOARD_CLOUDCTRL
default "demo9s12ne64" if ARCH_BOARD_DEMOS92S12NEC64
@ -2713,6 +2722,9 @@ endif
if ARCH_BOARD_ARDUINO_M0
source "boards/arm/samd2l2/arduino-m0/Kconfig"
endif
if ARCH_BOARD_CIRCUIT_EXPRESS
source "boards/arm/samd2l2/circuit-express/Kconfig"
endif
if ARCH_BOARD_FLIPNCLICK_SAM3X
source "boards/arm/sam34/flipnclick-sam3x/Kconfig"
endif

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@ -0,0 +1,9 @@
#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
if ARCH_BOARD_CIRCUIT_EXPRESS
endif

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@ -0,0 +1,64 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_DISABLE_POSIX_TIMERS is not set
# CONFIG_NSH_DISABLEBG is not set
# CONFIG_NSH_DISABLESCRIPT is not set
# CONFIG_NSH_DISABLE_CMP is not set
# CONFIG_NSH_DISABLE_DD is not set
# CONFIG_NSH_DISABLE_EXEC is not set
# CONFIG_NSH_DISABLE_EXIT is not set
# CONFIG_NSH_DISABLE_GET is not set
# CONFIG_NSH_DISABLE_HEXDUMP is not set
# CONFIG_NSH_DISABLE_IFCONFIG is not set
# CONFIG_NSH_DISABLE_ITEF is not set
# CONFIG_NSH_DISABLE_LOOPS is not set
# CONFIG_NSH_DISABLE_LOSETUP is not set
# CONFIG_NSH_DISABLE_MKRD is not set
# CONFIG_NSH_DISABLE_PS is not set
# CONFIG_NSH_DISABLE_PUT is not set
# CONFIG_NSH_DISABLE_SEMICOLON is not set
# CONFIG_NSH_DISABLE_WGET is not set
# CONFIG_NSH_DISABLE_XD is not set
CONFIG_ARCH="arm"
CONFIG_ARCH_BOARD="circuit-express"
CONFIG_ARCH_BOARD_CIRCUIT_EXPRESS=y
CONFIG_ARCH_CHIP="samd2l2"
CONFIG_ARCH_CHIP_SAMD21G18A=y
CONFIG_ARCH_CHIP_SAMD2X=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARD_LOOPSPERMSEC=3410
CONFIG_BUILTIN=y
CONFIG_DEBUG_ASSERTIONS=y
CONFIG_DEBUG_ERROR=y
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DEBUG_WARN=y
CONFIG_DEFAULT_SMALL=y
CONFIG_MAX_TASKS=16
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_PREALLOC_TIMERS=4
CONFIG_PTHREAD_STACK_DEFAULT=1536
CONFIG_RAM_SIZE=32768
CONFIG_RAM_START=0x20000000
CONFIG_RR_INTERVAL=200
CONFIG_SAMD2L2_SERCOM4=y
CONFIG_SCHED_WAITPID=y
CONFIG_SDCLONE_DISABLE=y
CONFIG_STACK_COLORATION=y
CONFIG_START_DAY=21
CONFIG_START_MONTH=6
CONFIG_START_YEAR=2015
CONFIG_SYSTEM_NSH=y
CONFIG_TASK_NAME_SIZE=0
CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=1536
CONFIG_USART4_RXBUFSIZE=64
CONFIG_USART4_SERIAL_CONSOLE=y
CONFIG_USART4_TXBUFSIZE=64
CONFIG_USERMAIN_STACKSIZE=1536
CONFIG_USER_ENTRYPOINT="nsh_main"

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@ -0,0 +1,396 @@
/****************************************************************************
* boards/arm/samd2l2/circuit-express/include/board.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __BOARDS_ARM_SAMD2L2_CIRCUIT_EXPRESS_INCLUDE_BOARD_H
#define __BOARDS_ARM_SAMD2L2_CIRCUIT_EXPRESS_INCLUDE_BOARD_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
# ifdef CONFIG_SAMD2L2_GPIOIRQ
# include <arch/irq.h>
# endif
#endif
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Clocking *****************************************************************/
/* Overview
*
* OSC8M Output = 8MHz
* `- GCLK1 Input = 8MHz Prescaler = 1 output = 8MHz
* `- DFLL Input = 8MHz Multiplier = 6 output = 48MHz
* `- GCLK0 Input = 48MHz Prescaler = 1 output = 48MHz
* `- PM Input = 48Mhz CPU divider = 1 CPU frequency = 48MHz
* APBA divider = 1 APBA frequency = 48MHz
* APBB divider = 1 APBB frequency = 48MHz
* APBC divider = 1 APBC frequency = 48MHz
*
*/
/* XOSC Configuration -- Not available
*
* BOARD_XOSC_ENABLE - Boolean (defined / not defined)
* BOARD_XOSC_FREQUENCY - In Hz
* BOARD_XOSC_STARTUPTIME - See SYSCTRL_XOSC_STARTUP_* definitions
* BOARD_XOSC_ISCRYSTAL - Boolean (defined / not defined)
* BOARD_XOSC_AMPGC - Boolean (defined / not defined)
* BOARD_XOSC_ONDEMAND - Boolean (defined / not defined)
* BOARD_XOSC_RUNINSTANDBY - Boolean (defined / not defined)
*/
#undef BOARD_XOSC_ENABLE
#define BOARD_XOSC_FREQUENCY 12000000UL
#define BOARD_XOSC_STARTUPTIME SYSCTRL_XOSC_STARTUP_1S
#define BOARD_XOSC_ISCRYSTAL 1
#define BOARD_XOSC_AMPGC 1
#define BOARD_XOSC_ONDEMAND 1
#undef BOARD_XOSC_RUNINSTANDBY
/* XOSC32 Configuration -- Not used
*
* BOARD_XOSC32K_ENABLE - Boolean (defined / not defined)
* BOARD_XOSC32K_FREQUENCY - In Hz
* BOARD_XOSC32K_STARTUPTIME - See SYSCTRL_XOSC32K_STARTUP_* definitions
* BOARD_XOSC32K_ISCRYSTAL - Boolean (defined / not defined)
* BOARD_XOSC32K_AAMPEN - Boolean (defined / not defined)
* BOARD_XOSC32K_EN1KHZ - Boolean (defined / not defined)
* BOARD_XOSC32K_EN32KHZ - Boolean (defined / not defined)
* BOARD_XOSC32K_ONDEMAND - Boolean (defined / not defined)
* BOARD_XOSC32K_RUNINSTANDBY - Boolean (defined / not defined)
*/
#undef BOARD_XOSC32K_ENABLE
#define BOARD_XOSC32K_FREQUENCY 32768 /* 32.768KHz XTAL */
#define BOARD_XOSC32K_STARTUPTIME SYSCTRL_XOSC32K_STARTUP_2S
#define BOARD_XOSC32K_ISCRYSTAL 1
#define BOARD_XOSC32K_AAMPEN 1
#undef BOARD_XOSC32K_EN1KHZ
#define BOARD_XOSC32K_EN32KHZ 1
#define BOARD_XOSC32K_ONDEMAND 1
#undef BOARD_XOSC32K_RUNINSTANDBY
/* OSC32 Configuration -- not used
*
* BOARD_OSC32K_ENABLE - Boolean (defined / not defined)
* BOARD_OSC32K_FREQUENCY - In Hz
* BOARD_OSC32K_STARTUPTIME - See SYSCTRL_OSC32K_STARTUP_* definitions
* BOARD_OSC32K_EN1KHZ - Boolean (defined / not defined)
* BOARD_OSC32K_EN32KHZ - Boolean (defined / not defined)
* BOARD_OSC32K_ONDEMAND - Boolean (defined / not defined)
* BOARD_OSC32K_RUNINSTANDBY - Boolean (defined / not defined)
*/
#undef BOARD_OSC32K_ENABLE
#define BOARD_OSC32K_FREQUENCY 32768 /* 32.768kHz internal oscillator */
#define BOARD_OSC32K_STARTUPTIME SYSCTRL_OSC32K_STARTUP_4MS
#define BOARD_OSC32K_EN1KHZ 1
#define BOARD_OSC32K_EN32KHZ 1
#define BOARD_OSC32K_ONDEMAND 1
#undef BOARD_OSC32K_RUNINSTANDBY
/* OSC8M Configuration -- always enabled
*
* BOARD_OSC8M_PRESCALER - See SYSCTRL_OSC8M_PRESC_DIV* definitions
* BOARD_OSC8M_ONDEMAND - Boolean (defined / not defined)
* BOARD_OSC8M_RUNINSTANDBY - Boolean (defined / not defined)
*/
#define BOARD_OSC8M_PRESCALER SYSCTRL_OSC8M_PRESC_DIV1
#define BOARD_OSC8M_ONDEMAND 1
#undef BOARD_OSC8M_RUNINSTANDBY
#define BOARD_OSC8M_FREQUENCY 8000000 /* 8MHz high-accuracy internal oscillator */
/* OSCULP32K Configuration -- not used. */
#define BOARD_OSCULP32K_FREQUENCY 32000 /* 32kHz ultra-low-power internal oscillator */
/* Digital Frequency Locked Loop configuration. In closed-loop mode, the
* DFLL output frequency (Fdfll) is given by:
*
* Fdfll = DFLLmul * Frefclk
* = 6 * 8000000 = 48MHz
*
* Where the reference clock is Generic Clock Channel 0 output of GLCK1.
* GCLCK1 provides OSC8M, undivided.
*
* When operating in open-loop mode, the output frequency of the DFLL will
* be determined by the values written to the DFLL Coarse Value bit group
* and the DFLL Fine Value bit group in the DFLL Value register.
*
* BOARD_DFLL_OPENLOOP - Boolean (defined / not defined)
* BOARD_DFLL_TRACKAFTERFINELOCK - Boolean (defined / not defined)
* BOARD_DFLL_KEEPLOCKONWAKEUP - Boolean (defined / not defined)
* BOARD_DFLL_ENABLECHILLCYCLE - Boolean (defined / not defined)
* BOARD_DFLL_QUICKLOCK - Boolean (defined / not defined)
* BOARD_DFLL_ONDEMAND - Boolean (defined / not defined)
*
* Closed loop mode only:
* BOARD_DFLL_GCLKGEN - GCLK index
* BOARD_DFLL_MULTIPLIER - Value
* BOARD_DFLL_MAXCOARSESTEP - Value
* BOARD_DFLL_MAXFINESTEP - Value
*
* BOARD_DFLL_FREQUENCY - The resulting frequency
*/
#define BOARD_DFLL_ENABLE 1
#define BOARD_DFLL_OPENLOOP 1
#undef BOARD_DFLL_ONDEMAND
#undef BOARD_DFLL_RUNINSTANDBY
/* DFLL closed loop mode configuration */
#define BOARD_DFLL_SRCGCLKGEN 1
#define BOARD_DFLL_MULTIPLIER 6
#define BOARD_DFLL_QUICKLOCK 1
#define BOARD_DFLL_TRACKAFTERFINELOCK 1
#define BOARD_DFLL_KEEPLOCKONWAKEUP 1
#define BOARD_DFLL_ENABLECHILLCYCLE 1
#define BOARD_DFLL_MAXCOARSESTEP (0x1f / 4)
#define BOARD_DFLL_MAXFINESTEP (0xff / 4)
#define BOARD_DFLL_FREQUENCY (48000000)
/* GCLK Configuration
*
* Global enable/disable.
*
* BOARD_GCLK_ENABLE - Boolean (defined / not defined)
*
* For n=1-7:
* BOARD_GCLKn_ENABLE - Boolean (defined / not defined)
*
* For n=0-8:
* BOARD_GCLKn_RUN_IN_STANDBY - Boolean (defined / not defined)
* BOARD_GCLKn_CLOCK_SOURCE - See GCLK_GENCTRL_SRC_* definitions
* BOARD_GCLKn_PRESCALER - Value
* BOARD_GCLKn_OUTPUT_ENABLE - Boolean (defined / not defined)
*/
#define BOARD_GCLK_ENABLE 1
/* GCLK generator 0 (Main Clock) - Source is the DFLL */
#undef BOARD_GCLK0_RUN_IN_STANDBY
#define BOARD_GCLK0_CLOCK_SOURCE GCLK_GENCTRL_SRC_DFLL48M
#define BOARD_GCLK0_PRESCALER 1
#undef BOARD_GCLK0_OUTPUT_ENABLE
#define BOARD_GCLK0_FREQUENCY (BOARD_DFLL_FREQUENCY / BOARD_GCLK0_PRESCALER)
/* Configure GCLK generator 1 - Drives the DFLL */
#define BOARD_GCLK1_ENABLE 1
#undef BOARD_GCLK1_RUN_IN_STANDBY
#define BOARD_GCLK1_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M
#define BOARD_GCLK1_PRESCALER 1
#undef BOARD_GCLK1_OUTPUT_ENABLE
#define BOARD_GCLK1_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK1_PRESCALER)
/* Configure GCLK generator 2 (RTC) */
#undef BOARD_GCLK2_ENABLE
#undef BOARD_GCLK2_RUN_IN_STANDBY
#define BOARD_GCLK2_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC32K
#define BOARD_GCLK2_PRESCALER 32
#undef BOARD_GCLK2_OUTPUT_ENABLE
#define BOARD_GCLK2_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK2_PRESCALER)
/* Configure GCLK generator 3 */
#undef BOARD_GCLK3_ENABLE
#undef BOARD_GCLK3_RUN_IN_STANDBY
#define BOARD_GCLK3_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M
#define BOARD_GCLK3_PRESCALER 1
#undef BOARD_GCLK3_OUTPUT_ENABLE
#define BOARD_GCLK3_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK3_PRESCALER)
/* Configure GCLK generator 4 */
#undef BOARD_GCLK4_ENABLE
#undef BOARD_GCLK4_RUN_IN_STANDBY
#define BOARD_GCLK4_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M
#define BOARD_GCLK4_PRESCALER 1
#undef BOARD_GCLK4_OUTPUT_ENABLE
#define BOARD_GCLK4_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK4_PRESCALER)
/* Configure GCLK generator 5 */
#undef BOARD_GCLK5_ENABLE
#undef BOARD_GCLK5_RUN_IN_STANDBY
#define BOARD_GCLK5_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M
#define BOARD_GCLK5_PRESCALER 1
#undef BOARD_GCLK5_OUTPUT_ENABLE
#define BOARD_GCLK5_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK5_PRESCALER)
/* Configure GCLK generator 6 */
#undef BOARD_GCLK6_ENABLE
#undef BOARD_GCLK6_RUN_IN_STANDBY
#define BOARD_GCLK6_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M
#define BOARD_GCLK6_PRESCALER 1
#undef BOARD_GCLK6_OUTPUT_ENABLE
#define BOARD_GCLK6_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK6_PRESCALER)
/* Configure GCLK generator 7 */
#undef BOARD_GCLK7_ENABLE
#undef BOARD_GCLK7_RUN_IN_STANDBY
#define BOARD_GCLK7_CLOCK_SOURCE GCLK_GENCTRL_SRC_OSC8M
#define BOARD_GCLK7_PRESCALER 1
#undef BOARD_GCLK7_OUTPUT_ENABLE
#define BOARD_GCLK7_FREQUENCY (BOARD_OSC8M_FREQUENCY / BOARD_GCLK7_PRESCALER)
/* 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 OSC8M divided by 8.
*/
#define BOARD_GCLK_MAIN_FREQUENCY BOARD_GCLK0_FREQUENCY
/* Main clock dividers
*
* BOARD_CPU_DIVIDER - See PM_CPUSEL_CPUDIV_* definitions
* BOARD_CPU_FRQUENCY - In Hz
* BOARD_CPU_FAILDECT - Boolean (defined / not defined)
* BOARD_APBA_DIVIDER - See M_APBASEL_APBADIV_* definitions
* BOARD_APBA_FRQUENCY - In Hz
* BOARD_APBB_DIVIDER - See M_APBBSEL_APBBDIV_* definitions
* BOARD_APBB_FRQUENCY - In Hz
* BOARD_APBC_DIVIDER - See M_APBCSEL_APBCDIV_* definitions
* BOARD_APBC_FRQUENCY - In Hz
*/
#define BOARD_CPU_FAILDECT 1
#define BOARD_CPU_DIVIDER PM_CPUSEL_CPUDIV_1
#define BOARD_APBA_DIVIDER PM_APBASEL_APBADIV_1
#define BOARD_APBB_DIVIDER PM_APBBSEL_APBBDIV_1
#define BOARD_APBC_DIVIDER PM_APBCSEL_APBCDIV_1
/* Resulting frequencies */
#define BOARD_MCK_FREQUENCY (BOARD_GCLK_MAIN_FREQUENCY)
#define BOARD_CPU_FREQUENCY (BOARD_MCK_FREQUENCY)
#define BOARD_PBA_FREQUENCY (BOARD_MCK_FREQUENCY)
#define BOARD_PBB_FREQUENCY (BOARD_MCK_FREQUENCY)
#define BOARD_PBC_FREQUENCY (BOARD_MCK_FREQUENCY)
#define BOARD_PBD_FREQUENCY (BOARD_MCK_FREQUENCY)
/* FLASH wait states
*
* 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 /* REVISIT -- should not be necessary */
# define BOARD_FLASH_WAITSTATES 1
#else
# define BOARD_FLASH_WAITSTATES 2
#endif
/* SERCOM definitions *******************************************************/
/* This is the source clock generator for the GCLK_SERCOM_SLOW clock that is
* common to all SERCOM modules.
*/
#define BOARD_SERCOM05_SLOW_GCLKGEN 0
/* SERCOM5 USART used to Serial Console
*
* PIN PORT SERCOM FUNCTION
* --- ------------------ -----------
* 7 PB08 SERCOM4 PAD0 USART TXD
* 8 PB09 SERCOM4 PAD1 USART RXD
*/
#define BOARD_SERCOM4_GCLKGEN 0
#define BOARD_SERCOM4_SLOW_GCLKGEN BOARD_SERCOM05_SLOW_GCLKGEN
#define BOARD_SERCOM4_MUXCONFIG (USART_CTRLA_RXPAD1 | USART_CTRLA_TXPAD0_1)
#define BOARD_SERCOM4_PINMAP_PAD0 PORT_SERCOM4_PAD0_3 /* USART 4 TXD */
#define BOARD_SERCOM4_PINMAP_PAD1 PORT_SERCOM4_PAD1_3 /* USART 4 RXD */
#define BOARD_SERCOM4_PINMAP_PAD2 0
#define BOARD_SERCOM4_PINMAP_PAD3 0
#define BOARD_SERCOM4_FREQUENCY BOARD_GCLK0_FREQUENCY
/* LED definitions **********************************************************/
/* There are 2 LEDs on board the Adafruit Circuit Express board in addition
* to the neopixel LEDs.
* The power ON LED which is connected to the 3.3V rail.
* D13 which is an active high user status LED.
*
* This user LED is controlled by PA17.
*/
/* 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 Adafruit Circuit Express contains 2 mechanical buttons and a switch.
*/
#define NUM_BUTTONS 3
#endif /* __BOARDS_ARM_SAMD2L2_CIRCUIT_EXPRESS_INCLUDE_BOARD_H */

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@ -0,0 +1,63 @@
############################################################################
# boards/arm/samd2l2/circuit-express/scripts/Make.defs
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################
include $(TOPDIR)/.config
include $(TOPDIR)/tools/Config.mk
include $(TOPDIR)/arch/arm/src/armv6-m/Toolchain.defs
LDSCRIPT = flash.ld
ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
ARCHSCRIPT = -T "${shell cygpath -w $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
else
ARCHSCRIPT = -T$(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
endif
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
ARCHOPTIMIZATION = -g
endif
ifneq ($(CONFIG_DEBUG_NOOPT),y)
ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
endif
ARCHCFLAGS = -fno-builtin
ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
ARCHWARNINGSXX = -Wall -Wshadow -Wundef
ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
CFLAGS := $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
AFLAGS := $(CFLAGS) -D__ASSEMBLY__
NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048
ifneq ($(CROSSDEV),arm-nuttx-elf-)
LDFLAGS += -nostartfiles -nodefaultlibs
endif
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
LDFLAGS += -g
endif

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@ -0,0 +1,111 @@
/****************************************************************************
* boards/arm/samd2l2/circuit-express/scripts/flash.ld
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/* The ATSAMD21G18A has 256KB of FLASH beginning at address 0x0000:0000 and
* 32KB of SRAM beginning at address 0x2000:0000
*/
MEMORY
{
flash (rx) : ORIGIN = 0x00000000, LENGTH = 256K
sram (rwx) : ORIGIN = 0x20000000, LENGTH = 32K
}
OUTPUT_ARCH(arm)
EXTERN(_vectors)
ENTRY(_stext)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
.init_section : {
_sinit = ABSOLUTE(.);
*(.init_array .init_array.*)
_einit = ABSOLUTE(.);
} > flash
.ARM.extab : {
*(.ARM.extab*)
} >flash
.ARM.exidx : {
__exidx_start = ABSOLUTE(.);
*(.ARM.exidx*)
__exidx_end = ABSOLUTE(.);
} >flash
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
. = ALIGN(4);
_edata = ABSOLUTE(.);
} > sram AT > flash
_eronly = LOADADDR(.data);
.ramfunc ALIGN(4): {
_sramfuncs = ABSOLUTE(.);
*(.ramfunc .ramfunc.*)
_eramfuncs = ABSOLUTE(.);
} > sram AT > flash
_framfuncs = LOADADDR(.ramfunc);
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(4);
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

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@ -0,0 +1,37 @@
############################################################################
# boards/arm/samd2l2/circuit-express/src/Makefile
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################
include $(TOPDIR)/Make.defs
CSRCS = sam_boot.c sam_bringup.c
ifeq ($(CONFIG_ARCH_LEDS),y)
CSRCS += sam_autoleds.c
endif
ifeq ($(CONFIG_ARCH_BUTTONS),y)
CSRCS += sam_buttons.c
endif
ifeq ($(CONFIG_LIB_BOARDCTL),y)
CSRCS += sam_appinit.c
endif
include $(TOPDIR)/boards/Board.mk

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@ -0,0 +1,102 @@
/****************************************************************************
* boards/arm/samd2l2/circuit-express/src/circuit_express.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __BOARDS_ARM_SAMD2L2_CIRCUIT_EXPRESS_SRC_CIRCUIT_EXPRESS_H
#define __BOARDS_ARM_SAMD2L2_CIRCUIT_EXPRESS_SRC_CIRCUIT_EXPRESS_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/compiler.h>
#include <stdint.h>
#include <arch/irq.h>
#include <nuttx/irq.h>
#include "sam_config.h"
#include "sam_pinmap.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* LEDs:
* There is a LED on board the Circuit Express board.
*
* This LED is controlled by PA17 and the LED can be activated by driving
* PA17 to High.
*
* When CONFIG_ARCH_LEDS is defined in the NuttX configuration, NuttX will
* control the LED as follows:
*
* SYMBOL Meaning LED
* ------------------- ----------------------- ------
* LED_STARTED NuttX has been started OFF
* LED_HEAPALLOCATE Heap has been allocated OFF
* LED_IRQSENABLED Interrupts enabled OFF
* LED_STACKCREATED Idle stack created ON
* LED_INIRQ In an interrupt N/C
* LED_SIGNAL In a signal handler N/C
* LED_ASSERTION An assertion failed N/C
* LED_PANIC The system has crashed FLASH
*
* 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 PORT_STATUS_LED (PORT_OUTPUT | PORT_PULL_NONE | PORT_OUTPUT_SET | \
PORTA | PORT_PIN17)
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Functions Definitions
****************************************************************************/
/****************************************************************************
* Name: sam_bringup
*
* Description:
* Perform architecture-specific initialization
*
* CONFIG_BOARD_LATE_INITIALIZE=y :
* Called from board_late_initialize().
*
* CONFIG_BOARD_LATE_INITIALIZE=y && CONFIG_LIB_BOARDCTL=y :
* Called from the NSH library
*
****************************************************************************/
int sam_bringup(void);
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_ARM_SAMD2L2_CIRCUIT_EXPRESS_SRC_CIRCUIT_EXPRESS_H */

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@ -0,0 +1,71 @@
/****************************************************************************
* boards/arm/samd2l2/circuit-express/src/sam_appinit.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <syslog.h>
#include <nuttx/board.h>
#include "sam_config.h"
#include "circuit_express.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_app_initialize
*
* Description:
* Perform application specific initialization. This function is never
* called directly from application code, but only indirectly via the
* (non-standard) boardctl() interface using the command BOARDIOC_INIT.
*
* Input Parameters:
* arg - The boardctl() argument is passed to the board_app_initialize()
* implementation without modification. The argument has no
* meaning to NuttX; the meaning of the argument is a contract
* between the board-specific initialization logic and the
* matching application logic. The value could be such things as a
* mode enumeration value, a set of DIP switch switch settings, a
* pointer to configuration data read from a file or serial FLASH,
* or whatever you would like to do with it. Every implementation
* should accept zero/NULL as a default configuration.
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure to indicate the nature of the failure.
*
****************************************************************************/
int board_app_initialize(uintptr_t arg)
{
return OK;
}

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@ -0,0 +1,138 @@
/****************************************************************************
* boards/arm/samd2l2/circuit-express/src/sam_autoleds.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/* There is a LED on board the Circuit Express board.
*
* When CONFIG_ARCH_LEDS is defined in the NuttX configuration, NuttX will
* control the LED as follows:
*
* SYMBOL Meaning LED
* ------------------- ----------------------- ------
* LED_STARTED NuttX has been started OFF
* LED_HEAPALLOCATE Heap has been allocated OFF
* LED_IRQSENABLED Interrupts enabled OFF
* LED_STACKCREATED Idle stack created ON
* LED_INIRQ In an interrupt** N/C
* LED_SIGNAL In a signal handler*** N/C
* LED_ASSERTION An assertion failed N/C
* LED_PANIC The system has crashed FLASH
*
* 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.
*/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "sam_port.h"
#include "circuit_express.h"
#ifdef CONFIG_ARCH_LEDS
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_autoled_initialize
****************************************************************************/
void board_autoled_initialize(void)
{
sam_configport(PORT_STATUS_LED);
}
/****************************************************************************
* Name: board_autoled_on
****************************************************************************/
void board_autoled_on(int led)
{
switch (led)
{
case 0: /* LED_STARTED: NuttX has been started STATUS LED=OFF
* LED_HEAPALLOCATE: Heap has been allocated STATUS LED=OFF
* LED_IRQSENABLED: Interrupts enabled STATUS LED=OFF
*/
break; /* Leave ledstate == true to turn OFF */
default:
case 2: /* LED_INIRQ: In an interrupt STATUS LED=N/C
* LED_SIGNAL: In a signal handler STATUS LED=N/C
* LED_ASSERTION: An assertion failed STATUS LED=N/C
*/
return; /* Return to leave STATUS LED unchanged */
case 3: /* LED_PANIC: The system has crashed STATUS LED=FLASH */
case 1: /* LED_STACKCREATED: Idle stack created STATUS LED=ON */
sam_portwrite(PORT_STATUS_LED, true);
break;
}
}
/****************************************************************************
* Name: board_autoled_off
****************************************************************************/
void board_autoled_off(int led)
{
switch (led)
{
/* These should not happen and are ignored */
default:
case 0: /* LED_STARTED: NuttX has been started STATUS LED=OFF
* LED_HEAPALLOCATE: Heap has been allocated STATUS LED=OFF
* LED_IRQSENABLED: Interrupts enabled STATUS LED=OFF
*/
case 1: /* LED_STACKCREATED: Idle stack created STATUS LED=ON */
/* These result in no-change */
case 2: /* LED_INIRQ: In an interrupt STATUS LED=N/C
* LED_SIGNAL: In a signal handler STATUS LED=N/C
* LED_ASSERTION: An assertion failed STATUS LED=N/C
*/
return; /* Return to leave STATUS LED unchanged */
/* Turn STATUS LED off set driving the output high */
case 3: /* LED_PANIC: The system has crashed STATUS LED=FLASH */
sam_portwrite(PORT_STATUS_LED, false);
break;
}
}
#endif /* CONFIG_ARCH_LEDS */

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@ -0,0 +1,86 @@
/****************************************************************************
* boards/arm/samd2l2/circuit-express/src/sam_boot.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <nuttx/board.h>
#include "sam_config.h"
#include "circuit_express.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: sam_boardinitialize
*
* Description:
* All SAMD21 architectures must provide the following entry point.
* This entry point is called early in the initialization -- after all
* memory has been configured and mapped but before any devices have been
* initialized.
*
****************************************************************************/
void sam_boardinitialize(void)
{
/* Configure on-board LEDs if LED support has been selected. */
#ifdef CONFIG_ARCH_LEDS
board_autoled_initialize();
#endif
}
/****************************************************************************
* Name: board_late_initialize
*
* Description:
* If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
* initialization call will be performed in the boot-up sequence to a
* function called board_late_initialize(). board_late_initialize() will be
* called immediately after up_intitialize() is called and just before the
* initial application is started. This additional initialization phase
* may be used, for example, to initialize board-specific device drivers.
*
****************************************************************************/
#ifdef CONFIG_BOARD_LATE_INITIALIZE
void board_late_initialize(void)
{
/* Perform board initialization */
(void)sam_bringup();
}
#endif /* CONFIG_BOARD_LATE_INITIALIZE */

View File

@ -0,0 +1,60 @@
/****************************************************************************
* boards/arm/samd2l2/circuit-express/src/sam_bringup.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <debug.h>
#include <nuttx/board.h>
#include "sam_config.h"
#include "circuit_express.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: sam_bringup
*
* Description:
* Bring up board features
*
****************************************************************************/
int sam_bringup(void)
{
int ret = OK;
return ret;
}