mirror of
https://github.com/apache/nuttx.git
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boards/nrf52840-dk: add ADC and PWM examples
This commit is contained in:
raiden00pl
committed by
Alan Carvalho de Assis
Alan Carvalho de Assis
parent
e7f3028aa6
commit
13ff8e0276
@@ -0,0 +1,53 @@
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#
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# This file is autogenerated: PLEASE DO NOT EDIT IT.
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#
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# You can use "make menuconfig" to make any modifications to the installed .config file.
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# You can then do "make savedefconfig" to generate a new defconfig file that includes your
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# modifications.
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#
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# CONFIG_ARCH_FPU is not set
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# CONFIG_NSH_DISABLE_IFCONFIG is not set
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# CONFIG_NSH_DISABLE_PS is not set
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CONFIG_ADC=y
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CONFIG_ANALOG=y
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CONFIG_ARCH="arm"
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CONFIG_ARCH_BOARD="nrf52840-dk"
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CONFIG_ARCH_BOARD_NRF52840_DK=y
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CONFIG_ARCH_CHIP="nrf52"
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CONFIG_ARCH_CHIP_NRF52840=y
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CONFIG_ARCH_CHIP_NRF52=y
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CONFIG_ARCH_STACKDUMP=y
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CONFIG_ARCH_STDARG_H=y
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CONFIG_BOARD_LOOPSPERMSEC=5500
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CONFIG_BUILTIN=y
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CONFIG_EXAMPLES_ADC=y
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CONFIG_EXAMPLES_ADC_NSAMPLES=4
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CONFIG_EXAMPLES_ADC_SWTRIG=y
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CONFIG_FAT_LCNAMES=y
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CONFIG_FAT_LFN=y
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CONFIG_FS_FAT=y
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CONFIG_MAX_TASKS=16
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CONFIG_MM_REGIONS=2
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CONFIG_NFILE_DESCRIPTORS=8
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CONFIG_NFILE_STREAMS=8
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CONFIG_NRF52_SAADC=y
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CONFIG_NRF52_UART0=y
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CONFIG_NSH_ARCHINIT=y
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CONFIG_NSH_BUILTIN_APPS=y
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CONFIG_NSH_FILEIOSIZE=512
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CONFIG_NSH_LINELEN=64
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CONFIG_NSH_READLINE=y
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CONFIG_PREALLOC_TIMERS=4
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CONFIG_RAM_SIZE=65535
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CONFIG_RAM_START=0x20000000
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CONFIG_RAW_BINARY=y
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CONFIG_RR_INTERVAL=200
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CONFIG_SCHED_WAITPID=y
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CONFIG_SDCLONE_DISABLE=y
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CONFIG_START_DAY=26
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CONFIG_START_MONTH=3
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CONFIG_SYMTAB_ORDEREDBYNAME=y
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CONFIG_SYSTEM_NSH=y
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CONFIG_TASK_NAME_SIZE=0
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CONFIG_UART0_SERIAL_CONSOLE=y
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CONFIG_USER_ENTRYPOINT="nsh_main"
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@@ -0,0 +1,57 @@
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#
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# This file is autogenerated: PLEASE DO NOT EDIT IT.
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#
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# You can use "make menuconfig" to make any modifications to the installed .config file.
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# You can then do "make savedefconfig" to generate a new defconfig file that includes your
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# modifications.
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#
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# CONFIG_ARCH_FPU is not set
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# CONFIG_NSH_DISABLE_IFCONFIG is not set
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# CONFIG_NSH_DISABLE_PS is not set
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CONFIG_ARCH="arm"
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CONFIG_ARCH_BOARD="nrf52840-dk"
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CONFIG_ARCH_BOARD_NRF52840_DK=y
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CONFIG_ARCH_CHIP="nrf52"
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CONFIG_ARCH_CHIP_NRF52840=y
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CONFIG_ARCH_CHIP_NRF52=y
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CONFIG_ARCH_STACKDUMP=y
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CONFIG_ARCH_STDARG_H=y
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CONFIG_BOARD_LOOPSPERMSEC=5500
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CONFIG_BUILTIN=y
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CONFIG_EXAMPLES_PWM=y
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CONFIG_FAT_LCNAMES=y
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CONFIG_FAT_LFN=y
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CONFIG_FS_FAT=y
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CONFIG_MAX_TASKS=16
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CONFIG_MM_REGIONS=2
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CONFIG_NFILE_DESCRIPTORS=8
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CONFIG_NFILE_STREAMS=8
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CONFIG_NRF52_PWM0=y
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CONFIG_NRF52_PWM0_CH0=y
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CONFIG_NRF52_PWM0_CH1=y
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CONFIG_NRF52_PWM0_CH2=y
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CONFIG_NRF52_PWM0_CH3=y
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CONFIG_NRF52_PWM_MULTICHAN=y
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CONFIG_NRF52_UART0=y
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CONFIG_NSH_ARCHINIT=y
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CONFIG_NSH_BUILTIN_APPS=y
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CONFIG_NSH_FILEIOSIZE=512
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CONFIG_NSH_LINELEN=64
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CONFIG_NSH_READLINE=y
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CONFIG_PREALLOC_TIMERS=4
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CONFIG_PWM=y
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CONFIG_PWM_MULTICHAN=y
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CONFIG_PWM_NCHANNELS=4
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CONFIG_RAM_SIZE=65535
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CONFIG_RAM_START=0x20000000
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CONFIG_RAW_BINARY=y
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CONFIG_RR_INTERVAL=200
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CONFIG_SCHED_WAITPID=y
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CONFIG_SDCLONE_DISABLE=y
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CONFIG_START_DAY=26
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CONFIG_START_MONTH=3
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CONFIG_SYMTAB_ORDEREDBYNAME=y
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CONFIG_SYSTEM_NSH=y
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CONFIG_TASK_NAME_SIZE=0
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CONFIG_UART0_SERIAL_CONSOLE=y
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CONFIG_USER_ENTRYPOINT="nsh_main"
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@@ -152,4 +152,32 @@
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#define BOARD_I2C0_SCL_PIN (GPIO_OUTPUT | GPIO_PORT0 | GPIO_PIN(27))
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#define BOARD_I2C0_SDA_PIN (GPIO_INPUT | GPIO_PORT0 | GPIO_PIN(26))
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/* PWM Pins *****************************************************************/
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/* PWM 0:
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* PWM0 CH0 - P1.1
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* PWM0 CH1 - P1.2
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* PWM0 CH2 - P1.3
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* PWM0 CH3 - P1.4
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*/
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#define NRF52_PWM0_CH0_PIN (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN(1))
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#define NRF52_PWM0_CH1_PIN (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN(2))
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#define NRF52_PWM0_CH2_PIN (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN(3))
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#define NRF52_PWM0_CH3_PIN (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN(4))
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/* ADC Pins *****************************************************************/
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/* ADC
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* ADC CH0 - P0.03 - AIN1
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* ADC CH1 - P0.04 - AIN2
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* ADC CH2 - P0.28 - AIN4
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* ADC CH3 - P0.29 - AIN5
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*/
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#define NRF52_ADC_CH0_PIN (GPIO_INPUT | GPIO_PORT0 | GPIO_PIN(3))
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#define NRF52_ADC_CH1_PIN (GPIO_INPUT | GPIO_PORT0 | GPIO_PIN(4))
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#define NRF52_ADC_CH2_PIN (GPIO_INPUT | GPIO_PORT0 | GPIO_PIN(28))
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#define NRF52_ADC_CH3_PIN (GPIO_INPUT | GPIO_PORT0 | GPIO_PIN(29))
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#endif /* __BOARDS_ARM_NRF52_NRF52840_DK_INCLUDE_BOARD_H */
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@@ -81,4 +81,12 @@ CSRCS += nrf52_timer.c
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endif
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endif
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ifeq ($(CONFIG_PWM),y)
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CSRCS += nrf52_pwm.c
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endif
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ifeq ($(CONFIG_ADC),y)
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CSRCS += nrf52_adc.c
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endif
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include $(TOPDIR)/boards/Board.mk
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@@ -180,5 +180,29 @@ int nrf52_lpwaninitialize(void);
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int nrf52_timer_driver_setup(FAR const char *devpath, int timer);
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#endif
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/****************************************************************************
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* Name: nrf52_pwm_setup
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*
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* Description:
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* Initialize PWM driver.
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*
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****************************************************************************/
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#ifdef CONFIG_PWM
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int nrf52_pwm_setup(void);
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#endif
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/****************************************************************************
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* Name: nrf52_adc_setup
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*
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* Description:
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* Initialize ADC driver.
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*
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****************************************************************************/
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#ifdef CONFIG_ADC
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int nrf52_adc_setup(void);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __BOARDS_ARM_NRF52_NRF52840_DK_SRC_NRF52840_DK_H */
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@@ -0,0 +1,200 @@
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/****************************************************************************
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* boards/arm/nrf52/nrf52840-dk/src/nrf52_adc.c
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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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/analog/adc.h>
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#include <arch/board/board.h>
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#include "nrf52_gpio.h"
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#include "nrf52_adc.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Only one channel supported if TIMER triger enabled */
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#ifdef CONFIG_NRF52_SAADC_TIMER
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# define ADC_NCHANNELS (1)
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#else
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# define ADC_NCHANNELS (4)
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#endif
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/****************************************************************************
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* Private data
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****************************************************************************/
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/* ADC pins configuration */
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static uint32_t g_adc_pins[ADC_NCHANNELS] =
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{
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NRF52_ADC_CH0_PIN, /* AIN1 */
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#if (ADC_NCHANNELS == 4)
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NRF52_ADC_CH1_PIN, /* AIN2 */
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NRF52_ADC_CH2_PIN, /* AIN4 */
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NRF52_ADC_CH3_PIN, /* AIN5 */
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#endif
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};
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/* ADC channels configuration */
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static struct nrf52_adc_channel_s g_adc_chanlist[ADC_NCHANNELS] =
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{
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/* Channel 0 */
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{
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.p_psel = NRF52_ADC_IN_IN1,
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.n_psel = 0,
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#ifdef CONFIG_NRF52_SAADC_LIMITS
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.limith = 0,
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.limitl = 0,
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#endif
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.resp = NRF52_ADC_RES_BYPASS,
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.resn = NRF52_ADC_RES_BYPASS,
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.gain = NRF52_ADC_GAIN_1,
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.refsel = NRF52_ADC_REFSEL_INTERNAL,
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.tacq = NRF52_ADC_TACQ_40US,
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.mode = NRF52_ADC_MODE_SE,
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.burst = NRF52_ADC_BURST_DISABLE,
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},
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#if (ADC_NCHANNELS == 4)
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/* Channel 1 */
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{
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.p_psel = NRF52_ADC_IN_IN2,
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.n_psel = 0,
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#ifdef CONFIG_NRF52_SAADC_LIMITS
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.limith = 0,
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.limitl = 0,
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#endif
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.resp = NRF52_ADC_RES_BYPASS,
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.resn = NRF52_ADC_RES_BYPASS,
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.gain = NRF52_ADC_GAIN_1,
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.refsel = NRF52_ADC_REFSEL_INTERNAL,
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.tacq = NRF52_ADC_TACQ_40US,
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.mode = NRF52_ADC_MODE_SE,
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.burst = NRF52_ADC_BURST_DISABLE,
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},
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/* Channel 2 */
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{
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.p_psel = NRF52_ADC_IN_IN4,
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.n_psel = 0,
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#ifdef CONFIG_NRF52_SAADC_LIMITS
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.limith = 0,
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.limitl = 0,
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#endif
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.resp = NRF52_ADC_RES_BYPASS,
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.resn = NRF52_ADC_RES_BYPASS,
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.gain = NRF52_ADC_GAIN_1,
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.refsel = NRF52_ADC_REFSEL_INTERNAL,
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.tacq = NRF52_ADC_TACQ_40US,
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.mode = NRF52_ADC_MODE_SE,
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.burst = NRF52_ADC_BURST_DISABLE,
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},
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/* Channel 3 */
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{
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.p_psel = NRF52_ADC_IN_IN5,
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.n_psel = 0,
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#ifdef CONFIG_NRF52_SAADC_LIMITS
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.limith = 0,
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.limitl = 0,
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#endif
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.resp = NRF52_ADC_RES_BYPASS,
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.resn = NRF52_ADC_RES_BYPASS,
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.gain = NRF52_ADC_GAIN_1,
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.refsel = NRF52_ADC_REFSEL_INTERNAL,
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.tacq = NRF52_ADC_TACQ_40US,
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.mode = NRF52_ADC_MODE_SE,
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.burst = NRF52_ADC_BURST_DISABLE,
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}
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#endif
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};
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nrf52_adc_setup
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*
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* Description:
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* Initialize ADC and register the ADC device.
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*
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****************************************************************************/
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int nrf52_adc_setup(void)
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{
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static bool initialized = false;
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struct adc_dev_s *adc = NULL;
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int ret = OK;
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int i = 0;
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/* Have we already initialized? */
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if (!initialized)
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{
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/* Configure ADC pins */
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for (i = 0; i < ADC_NCHANNELS; i += 1)
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{
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nrf52_gpio_config(g_adc_pins[i]);
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}
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/* Call nrf52_adcinitialize() to get an instance of the ADC interface */
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adc = nrf52_adcinitialize(g_adc_chanlist, ADC_NCHANNELS);
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if (!adc)
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{
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aerr("ERROR: Failed to get the NRF52 ADC lower half\n");
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ret = -ENODEV;
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goto errout;
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}
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/* Register the ADC driver at "/dev/adc0" */
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ret = adc_register("/dev/adc0", adc);
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if (ret < 0)
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{
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aerr("ERROR: adc_register failed: %d\n", ret);
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goto errout;
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}
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/* Now we are initialized */
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initialized = true;
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}
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errout:
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return ret;
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}
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@@ -192,6 +192,30 @@ int nrf52_bringup(void)
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}
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#endif
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#ifdef CONFIG_PWM
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/* Configure PWM driver */
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ret = nrf52_pwm_setup();
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if (ret < 0)
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{
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syslog(LOG_ERR,
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"ERROR: Failed to initialize PWM driver: %d\n",
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ret);
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}
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#endif
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#ifdef CONFIG_ADC
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/* Configure ADC driver */
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ret = nrf52_adc_setup();
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if (ret < 0)
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{
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syslog(LOG_ERR,
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"ERROR: Failed to initialize ADC driver: %d\n",
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ret);
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}
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#endif
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UNUSED(ret);
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return OK;
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}
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|
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@@ -0,0 +1,90 @@
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/****************************************************************************
|
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* boards/arm/nrf52/nrf52840-dk/src/nrf52_pwm.c
|
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*
|
||||
* 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>
|
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|
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#include <errno.h>
|
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#include <debug.h>
|
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#include <stddef.h>
|
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|
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#include <nuttx/timers/pwm.h>
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#include <arch/board/board.h>
|
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|
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#include "nrf52_pwm.h"
|
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|
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/****************************************************************************
|
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* Pre-processor Definitions
|
||||
****************************************************************************/
|
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|
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#define NRF52_PWM (0)
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|
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/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
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/****************************************************************************
|
||||
* Name: nrf52_pwm_setup
|
||||
*
|
||||
* Description:
|
||||
* Initialize PWM and register the PWM device.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
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int nrf52_pwm_setup(void)
|
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{
|
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static bool initialized = false;
|
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struct pwm_lowerhalf_s *pwm = NULL;
|
||||
int ret = OK;
|
||||
|
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/* Have we already initialized? */
|
||||
|
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if (!initialized)
|
||||
{
|
||||
/* Call nrf52_pwminitialize() to get an instance of the PWM interface */
|
||||
|
||||
pwm = nrf52_pwminitialize(NRF52_PWM);
|
||||
if (!pwm)
|
||||
{
|
||||
aerr("ERROR: Failed to get the NRF52 PWM lower half\n");
|
||||
ret = -ENODEV;
|
||||
goto errout;
|
||||
}
|
||||
|
||||
/* Register the PWM driver at "/dev/pwm0" */
|
||||
|
||||
ret = pwm_register("/dev/pwm0", pwm);
|
||||
if (ret < 0)
|
||||
{
|
||||
aerr("ERROR: pwm_register failed: %d\n", ret);
|
||||
goto errout;
|
||||
}
|
||||
|
||||
/* Now we are initialized */
|
||||
|
||||
initialized = true;
|
||||
}
|
||||
|
||||
errout:
|
||||
return ret;
|
||||
}
|
||||
Reference in New Issue
Block a user