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Posted to commits@nuttx.apache.org by pk...@apache.org on 2023/03/25 16:38:01 UTC
[nuttx] 02/02: boards/nrf5340-dk: add ADC configuration
This is an automated email from the ASF dual-hosted git repository.
pkarashchenko pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nuttx.git
commit f48846676e6ca7271e8b8cdd5270e12bbe905ed0
Author: raiden00pl <ra...@railab.me>
AuthorDate: Mon Mar 13 13:24:34 2023 +0100
boards/nrf5340-dk: add ADC configuration
---
.../nrf53/nrf5340-dk/configs/adc_cpuapp/defconfig | 52 ++++++
boards/arm/nrf53/nrf5340-dk/include/board.h | 14 ++
boards/arm/nrf53/nrf5340-dk/src/Makefile | 4 +
boards/arm/nrf53/nrf5340-dk/src/nrf5340-dk.h | 12 ++
boards/arm/nrf53/nrf5340-dk/src/nrf53_adc.c | 200 +++++++++++++++++++++
boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c | 12 ++
6 files changed, 294 insertions(+)
diff --git a/boards/arm/nrf53/nrf5340-dk/configs/adc_cpuapp/defconfig b/boards/arm/nrf53/nrf5340-dk/configs/adc_cpuapp/defconfig
new file mode 100644
index 0000000000..6c1d5a9f86
--- /dev/null
+++ b/boards/arm/nrf53/nrf5340-dk/configs/adc_cpuapp/defconfig
@@ -0,0 +1,52 @@
+#
+# 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_NSH_DISABLE_IFCONFIG is not set
+# CONFIG_NSH_DISABLE_PS is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ADC=y
+CONFIG_ANALOG=y
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="nrf5340-dk"
+CONFIG_ARCH_BOARD_NRF5340_DK=y
+CONFIG_ARCH_CHIP="nrf53"
+CONFIG_ARCH_CHIP_NRF5340=y
+CONFIG_ARCH_CHIP_NRF5340_CPUAPP=y
+CONFIG_ARCH_CHIP_NRF53=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_STDARG_H=y
+CONFIG_BOARD_LOOPSPERMSEC=5500
+CONFIG_BUILTIN=y
+CONFIG_EXAMPLES_ADC=y
+CONFIG_EXAMPLES_ADC_NSAMPLES=4
+CONFIG_EXAMPLES_ADC_SWTRIG=y
+CONFIG_EXPERIMENTAL=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_INTELHEX_BINARY=y
+CONFIG_MM_REGIONS=2
+CONFIG_NRF53_SAADC=y
+CONFIG_NRF53_UART0=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=524288
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=26
+CONFIG_START_MONTH=3
+CONFIG_SYMTAB_ORDEREDBYNAME=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_UART0_SERIAL_CONSOLE=y
diff --git a/boards/arm/nrf53/nrf5340-dk/include/board.h b/boards/arm/nrf53/nrf5340-dk/include/board.h
index 35a82ab941..5ee9b31916 100644
--- a/boards/arm/nrf53/nrf5340-dk/include/board.h
+++ b/boards/arm/nrf53/nrf5340-dk/include/board.h
@@ -141,4 +141,18 @@
#define NRF53_PWM0_CH2_PIN (GPIO_MCUSEL_APP | GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN(12))
#define NRF53_PWM0_CH3_PIN (GPIO_MCUSEL_APP | GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN(13))
+/* ADC Pins *****************************************************************/
+
+/* ADC
+ * ADC CH0 - P0.04 - AIN1
+ * ADC CH1 - P0.05 - AIN2
+ * ADC CH2 - P0.06 - AIN4
+ * ADC CH3 - P0.07 - AIN5
+ */
+
+#define NRF53_ADC_CH0_PIN (GPIO_MCUSEL_APP | GPIO_INPUT | GPIO_PORT0 | GPIO_PIN(4))
+#define NRF53_ADC_CH1_PIN (GPIO_MCUSEL_APP | GPIO_INPUT | GPIO_PORT0 | GPIO_PIN(5))
+#define NRF53_ADC_CH2_PIN (GPIO_MCUSEL_APP | GPIO_INPUT | GPIO_PORT0 | GPIO_PIN(6))
+#define NRF53_ADC_CH3_PIN (GPIO_MCUSEL_APP | GPIO_INPUT | GPIO_PORT0 | GPIO_PIN(7))
+
#endif /* __BOARDS_ARM_NRF53_NRF5340_DK_INCLUDE_BOARD_H */
diff --git a/boards/arm/nrf53/nrf5340-dk/src/Makefile b/boards/arm/nrf53/nrf5340-dk/src/Makefile
index 396959a90b..9c5313b9b7 100644
--- a/boards/arm/nrf53/nrf5340-dk/src/Makefile
+++ b/boards/arm/nrf53/nrf5340-dk/src/Makefile
@@ -46,4 +46,8 @@ ifeq ($(CONFIG_PWM),y)
CSRCS += nrf53_pwm.c
endif
+ifeq ($(CONFIG_ADC),y)
+CSRCS += nrf53_adc.c
+endif
+
include $(TOPDIR)/boards/Board.mk
diff --git a/boards/arm/nrf53/nrf5340-dk/src/nrf5340-dk.h b/boards/arm/nrf53/nrf5340-dk/src/nrf5340-dk.h
index 5e211e7f39..34ce71e3aa 100644
--- a/boards/arm/nrf53/nrf5340-dk/src/nrf5340-dk.h
+++ b/boards/arm/nrf53/nrf5340-dk/src/nrf5340-dk.h
@@ -106,5 +106,17 @@ int nrf53_timer_driver_setup(const char *devpath, int timer);
int nrf53_pwm_setup(void);
#endif
+/****************************************************************************
+ * Name: nrf53_adc_setup
+ *
+ * Description:
+ * Initialize ADC driver.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_ADC
+int nrf53_adc_setup(void);
+#endif
+
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_ARM_NRF53_NRF5340_DK_SRC_NRF53_NRF5340_DK_H */
diff --git a/boards/arm/nrf53/nrf5340-dk/src/nrf53_adc.c b/boards/arm/nrf53/nrf5340-dk/src/nrf53_adc.c
new file mode 100644
index 0000000000..d8cfd6c4b4
--- /dev/null
+++ b/boards/arm/nrf53/nrf5340-dk/src/nrf53_adc.c
@@ -0,0 +1,200 @@
+/****************************************************************************
+ * boards/arm/nrf53/nrf5340-dk/src/nrf53_adc.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 <stdint.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/analog/adc.h>
+#include <arch/board/board.h>
+
+#include "nrf53_gpio.h"
+#include "nrf53_adc.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Only one channel supported if TIMER triger enabled */
+
+#ifdef CONFIG_NRF53_SAADC_TIMER
+# define ADC_NCHANNELS (1)
+#else
+# define ADC_NCHANNELS (4)
+#endif
+
+/****************************************************************************
+ * Private data
+ ****************************************************************************/
+
+/* ADC pins configuration */
+
+static uint32_t g_adc_pins[ADC_NCHANNELS] =
+{
+ NRF53_ADC_CH0_PIN, /* AIN1 */
+#if (ADC_NCHANNELS == 4)
+ NRF53_ADC_CH1_PIN, /* AIN2 */
+ NRF53_ADC_CH2_PIN, /* AIN4 */
+ NRF53_ADC_CH3_PIN, /* AIN5 */
+#endif
+};
+
+/* ADC channels configuration */
+
+static struct nrf53_adc_channel_s g_adc_chanlist[ADC_NCHANNELS] =
+{
+ /* Channel 0 */
+
+ {
+ .p_psel = NRF53_ADC_IN_IN1,
+ .n_psel = 0,
+#ifdef CONFIG_NRF53_SAADC_LIMITS
+ .limith = 0,
+ .limitl = 0,
+#endif
+ .resp = NRF53_ADC_RES_BYPASS,
+ .resn = NRF53_ADC_RES_BYPASS,
+ .gain = NRF53_ADC_GAIN_1,
+ .refsel = NRF53_ADC_REFSEL_INTERNAL,
+ .tacq = NRF53_ADC_TACQ_40US,
+ .mode = NRF53_ADC_MODE_SE,
+ .burst = NRF53_ADC_BURST_DISABLE,
+ },
+
+#if (ADC_NCHANNELS == 4)
+ /* Channel 1 */
+
+ {
+ .p_psel = NRF53_ADC_IN_IN2,
+ .n_psel = 0,
+#ifdef CONFIG_NRF53_SAADC_LIMITS
+ .limith = 0,
+ .limitl = 0,
+#endif
+ .resp = NRF53_ADC_RES_BYPASS,
+ .resn = NRF53_ADC_RES_BYPASS,
+ .gain = NRF53_ADC_GAIN_1,
+ .refsel = NRF53_ADC_REFSEL_INTERNAL,
+ .tacq = NRF53_ADC_TACQ_40US,
+ .mode = NRF53_ADC_MODE_SE,
+ .burst = NRF53_ADC_BURST_DISABLE,
+ },
+
+ /* Channel 2 */
+
+ {
+ .p_psel = NRF53_ADC_IN_IN4,
+ .n_psel = 0,
+#ifdef CONFIG_NRF53_SAADC_LIMITS
+ .limith = 0,
+ .limitl = 0,
+#endif
+ .resp = NRF53_ADC_RES_BYPASS,
+ .resn = NRF53_ADC_RES_BYPASS,
+ .gain = NRF53_ADC_GAIN_1,
+ .refsel = NRF53_ADC_REFSEL_INTERNAL,
+ .tacq = NRF53_ADC_TACQ_40US,
+ .mode = NRF53_ADC_MODE_SE,
+ .burst = NRF53_ADC_BURST_DISABLE,
+ },
+
+ /* Channel 3 */
+
+ {
+ .p_psel = NRF53_ADC_IN_IN5,
+ .n_psel = 0,
+#ifdef CONFIG_NRF53_SAADC_LIMITS
+ .limith = 0,
+ .limitl = 0,
+#endif
+ .resp = NRF53_ADC_RES_BYPASS,
+ .resn = NRF53_ADC_RES_BYPASS,
+ .gain = NRF53_ADC_GAIN_1,
+ .refsel = NRF53_ADC_REFSEL_INTERNAL,
+ .tacq = NRF53_ADC_TACQ_40US,
+ .mode = NRF53_ADC_MODE_SE,
+ .burst = NRF53_ADC_BURST_DISABLE,
+ }
+#endif
+};
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nrf53_adc_setup
+ *
+ * Description:
+ * Initialize ADC and register the ADC device.
+ *
+ ****************************************************************************/
+
+int nrf53_adc_setup(void)
+{
+ static bool initialized = false;
+ struct adc_dev_s *adc = NULL;
+ int ret = OK;
+ int i = 0;
+
+ /* Have we already initialized? */
+
+ if (!initialized)
+ {
+ /* Configure ADC pins */
+
+ for (i = 0; i < ADC_NCHANNELS; i += 1)
+ {
+ nrf53_gpio_config(g_adc_pins[i]);
+ }
+
+ /* Call nrf53_adcinitialize() to get an instance of the ADC interface */
+
+ adc = nrf53_adcinitialize(g_adc_chanlist, ADC_NCHANNELS);
+ if (!adc)
+ {
+ aerr("ERROR: Failed to get the NRF53 ADC lower half\n");
+ ret = -ENODEV;
+ goto errout;
+ }
+
+ /* Register the ADC driver at "/dev/adc0" */
+
+ ret = adc_register("/dev/adc0", adc);
+ if (ret < 0)
+ {
+ aerr("ERROR: adc_register failed: %d\n", ret);
+ goto errout;
+ }
+
+ /* Now we are initialized */
+
+ initialized = true;
+ }
+
+errout:
+ return ret;
+}
diff --git a/boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c b/boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c
index d5ea34733f..3523706b0a 100644
--- a/boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c
+++ b/boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c
@@ -111,6 +111,18 @@ int nrf53_bringup(void)
}
#endif
+#ifdef CONFIG_ADC
+ /* Configure ADC driver */
+
+ ret = nrf53_adc_setup();
+ if (ret < 0)
+ {
+ syslog(LOG_ERR,
+ "ERROR: Failed to initialize ADC driver: %d\n",
+ ret);
+ }
+#endif
+
#ifdef CONFIG_NRF53_SOFTDEVICE_CONTROLLER
ret = nrf53_sdc_initialize();