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Posted to commits@nuttx.apache.org by ag...@apache.org on 2020/07/18 19:01:04 UTC
[incubator-nuttx] 02/03: boards/arm/nrf52/nrf52840-dk: add highpri
example configuration
This is an automated email from the ASF dual-hosted git repository.
aguettouche pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
commit f6235c52f73cde8bf7149250759e23c765c832ef
Author: raiden00pl <ra...@railab.me>
AuthorDate: Sat Jul 18 10:03:44 2020 +0200
boards/arm/nrf52/nrf52840-dk: add highpri example configuration
---
boards/arm/nrf52/nrf52840-dk/Kconfig | 4 +
.../nrf52/nrf52840-dk/configs/highpri/defconfig | 48 ++++
.../arm/nrf52/nrf52840-dk/scripts/flash_config.ld | 6 +
boards/arm/nrf52/nrf52840-dk/src/Makefile | 4 +
boards/arm/nrf52/nrf52840-dk/src/nrf52_highpri.c | 303 +++++++++++++++++++++
5 files changed, 365 insertions(+)
diff --git a/boards/arm/nrf52/nrf52840-dk/Kconfig b/boards/arm/nrf52/nrf52840-dk/Kconfig
index 52b4e6b..12fe14e 100644
--- a/boards/arm/nrf52/nrf52840-dk/Kconfig
+++ b/boards/arm/nrf52/nrf52840-dk/Kconfig
@@ -5,4 +5,8 @@
if ARCH_BOARD_NRF52840_DK
+config NRF52840DK_HIGHPRI
+ bool "High priority interrupt test"
+ default n
+
endif
diff --git a/boards/arm/nrf52/nrf52840-dk/configs/highpri/defconfig b/boards/arm/nrf52/nrf52840-dk/configs/highpri/defconfig
new file mode 100644
index 0000000..9c35757
--- /dev/null
+++ b/boards/arm/nrf52/nrf52840-dk/configs/highpri/defconfig
@@ -0,0 +1,48 @@
+#
+# 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_ARCH_FPU is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="nrf52840-dk"
+CONFIG_ARCH_BOARD_NRF52840_DK=y
+CONFIG_ARCH_CHIP="nrf52"
+CONFIG_ARCH_CHIP_NRF52840=y
+CONFIG_ARCH_CHIP_NRF52=y
+CONFIG_ARCH_HIPRI_INTERRUPT=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_STDARG_H=y
+CONFIG_BOARDCTL_MKRD=y
+CONFIG_BOARD_LOOPSPERMSEC=5500
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_LIB_BOARDCTL=y
+CONFIG_MAX_TASKS=16
+CONFIG_MAX_WDOGPARMS=2
+CONFIG_MM_REGIONS=2
+CONFIG_NFILE_DESCRIPTORS=8
+CONFIG_NFILE_STREAMS=8
+CONFIG_NRF52840DK_HIGHPRI=y
+CONFIG_NRF52_TIMER0=y
+CONFIG_NRF52_UART0=y
+CONFIG_PREALLOC_MQ_MSGS=4
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_PREALLOC_WDOGS=4
+CONFIG_RAM_SIZE=65535
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SDCLONE_DISABLE=y
+CONFIG_START_DAY=26
+CONFIG_START_MONTH=3
+CONFIG_SYMTAB_ORDEREDBYNAME=y
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_USER_ENTRYPOINT="highpri_main"
+CONFIG_WDOG_INTRESERVE=0
diff --git a/boards/arm/nrf52/nrf52840-dk/scripts/flash_config.ld b/boards/arm/nrf52/nrf52840-dk/scripts/flash_config.ld
index 23acb1c..ac347f0 100644
--- a/boards/arm/nrf52/nrf52840-dk/scripts/flash_config.ld
+++ b/boards/arm/nrf52/nrf52840-dk/scripts/flash_config.ld
@@ -82,6 +82,12 @@ SECTIONS
_eronly = ABSOLUTE(.);
+ /* The RAM vector table (if present) should lie at the beginning of SRAM */
+
+ .ram_vectors : {
+ *(.ram_vectors)
+ } > datamem
+
.data :
{
_sdata = ABSOLUTE(.);
diff --git a/boards/arm/nrf52/nrf52840-dk/src/Makefile b/boards/arm/nrf52/nrf52840-dk/src/Makefile
index 06f3004..08441a6 100644
--- a/boards/arm/nrf52/nrf52840-dk/src/Makefile
+++ b/boards/arm/nrf52/nrf52840-dk/src/Makefile
@@ -71,4 +71,8 @@ ifeq ($(CONFIG_LPWAN_SX127X),y)
CSRCS += nrf52_sx127x.c
endif
+ifeq ($(CONFIG_NRF52840DK_HIGHPRI),y)
+CSRCS += nrf52_highpri.c
+endif
+
include $(TOPDIR)/boards/Board.mk
diff --git a/boards/arm/nrf52/nrf52840-dk/src/nrf52_highpri.c b/boards/arm/nrf52/nrf52840-dk/src/nrf52_highpri.c
new file mode 100644
index 0000000..5420939
--- /dev/null
+++ b/boards/arm/nrf52/nrf52840-dk/src/nrf52_highpri.c
@@ -0,0 +1,303 @@
+/****************************************************************************
+ * boards/arm/nrf52/nrf52840-dk/src/nrf52_highpri.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 <stdlib.h>
+#include <strings.h>
+#include <unistd.h>
+
+#include <nuttx/arch.h>
+#include <nuttx/signal.h>
+
+#include <arch/irq.h>
+#include <arch/armv7-m/nvicpri.h>
+
+#include "arm_internal.h"
+#include "ram_vectors.h"
+
+#include "nrf52_tim.h"
+
+#include <arch/board/board.h>
+
+#ifdef CONFIG_NRF52840DK_HIGHPRI
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+#ifndef CONFIG_ARCH_HIPRI_INTERRUPT
+# error CONFIG_ARCH_HIPRI_INTERRUPT is required
+#endif
+
+#ifndef CONFIG_ARCH_RAMVECTORS
+# error CONFIG_ARCH_RAMVECTORS is required
+#endif
+
+#ifndef CONFIG_ARCH_IRQPRIO
+# error CONFIG_ARCH_IRQPRIO is required
+#endif
+
+#ifndef CONFIG_NRF52_TIMER0
+# error CONFIG_NRF52_TIMER0 is required
+#endif
+
+/* Timer configuration */
+
+#define NRF52_HIGHPRI_TIMER (0)
+#define NRF52_HIGHPRI_TIMER_IRQ (NRF52_IRQ_TIMER0)
+#define NRF52_TIMER_PRESCALER (NRF52_TIM_PRE_16000000)
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+struct highpri_s
+{
+ FAR struct nrf52_tim_dev_s *dev;
+ volatile uint64_t basepri[16];
+ volatile uint64_t handler;
+ volatile uint64_t thread;
+};
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static struct highpri_s g_highpri;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: timer_handler
+ *
+ * Description:
+ * This is the handler for the high speed TIMER0 interrupt.
+ *
+ ****************************************************************************/
+
+void timer_handler(void)
+{
+ uint8_t basepri;
+ int index;
+ int ret;
+
+ /* Verify interrupt source */
+
+ ret = NRF52_TIM_CHECKINT(g_highpri.dev, NRF52_TIM_CC0);
+ if (ret != 1)
+ {
+ DEBUGASSERT(0);
+ }
+
+ /* Increment the count associated with the current basepri */
+
+ basepri = getbasepri();
+ index = ((basepri >> 4) & 15);
+ g_highpri.basepri[index]++;
+
+ /* Check if we are in an interrupt handle */
+
+ if (up_interrupt_context())
+ {
+ g_highpri.handler++;
+ }
+ else
+ {
+ g_highpri.thread++;
+ }
+
+ /* Clear event */
+
+ NRF52_TIM_ACKINT(g_highpri.dev, NRF52_TIM_CC0);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: highpri_main
+ *
+ * Description:
+ * Main entry point in into the high priority interrupt test.
+ *
+ ****************************************************************************/
+
+int highpri_main(int argc, char *argv[])
+{
+ FAR struct nrf52_tim_dev_s *tim = NULL;
+ uint64_t basepri[16];
+ uint64_t handler;
+ uint64_t thread;
+ uint64_t total;
+ uint32_t seconds;
+ int ret;
+ int i;
+
+ /* Initialzie TIMER */
+
+ tim = nrf52_tim_init(NRF52_HIGHPRI_TIMER);
+ if (tim == NULL)
+ {
+ printf("ERROR: failed to initialize TIMER%d instance\n",
+ NRF52_HIGHPRI_TIMER);
+ ret = EXIT_FAILURE;
+ goto errout;
+ }
+
+ g_highpri.dev = tim;
+
+ /* Configure TIMER mode and width */
+
+ ret = NRF52_TIM_CONFIGURE(tim, NRF52_TIM_MODE_TIMER, NRF52_TIM_WIDTH_16B);
+ if (ret < 0)
+ {
+ printf("ERROR: failed to configure timer %d\n", ret);
+ ret = EXIT_FAILURE;
+ goto errout;
+ }
+
+ /* Configure TIMER prescaler */
+
+ ret = NRF52_TIM_SETPRE(tim, NRF52_TIMER_PRESCALER);
+ if (ret < 0)
+ {
+ printf("ERROR: failed to set timer prescaler %d\n", ret);
+ ret = EXIT_FAILURE;
+ goto errout;
+ }
+
+ /* Set TIMER CC0 */
+
+ ret = NRF52_TIM_SETCC(tim, NRF52_TIM_CC0, 0x01);
+ if (ret < 0)
+ {
+ printf("ERROR: failed to set TIMER CC %d\n", ret);
+ ret = EXIT_FAILURE;
+ goto errout;
+ }
+
+ /* Enable IRQ for TIMER CC0 */
+
+ ret = NRF52_TIM_ENABLEINT(tim, NRF52_TIM_INT_COMPARE0);
+ if (ret < 0)
+ {
+ printf("ERROR: failed to enable TIMER0 CC IRQ %d\n", ret);
+ ret = EXIT_FAILURE;
+ goto errout;
+ }
+
+ /* Attach TIMER ram vector */
+
+ ret = arm_ramvec_attach(NRF52_HIGHPRI_TIMER_IRQ, timer_handler);
+ if (ret < 0)
+ {
+ fprintf(stderr, "highpri_main: ERROR: arm_ramvec_attach failed: %d\n",
+ ret);
+ ret = EXIT_FAILURE;
+ goto errout;
+ }
+
+ /* Set the priority of the TIM6 interrupt vector */
+
+ ret = up_prioritize_irq(NRF52_HIGHPRI_TIMER_IRQ, NVIC_SYSH_HIGH_PRIORITY);
+ if (ret < 0)
+ {
+ fprintf(stderr, "highpri_main: ERROR: up_prioritize_irq failed: %d\n",
+ ret);
+ ret = EXIT_FAILURE;
+ goto errout;
+ }
+
+ /* Enable the timer interrupt at the NVIC and at TIMER */
+
+ up_enable_irq(NRF52_HIGHPRI_TIMER_IRQ);
+ NRF52_TIM_START(tim);
+
+ seconds = 0;
+
+ while (1)
+ {
+ /* Flush stdout and wait a bit */
+
+ fflush(stdout);
+ nxsig_sleep(1);
+ seconds++;
+
+ /* Sample counts so that they are not volatile. Missing a count now
+ * and then is a normal consequence of this design.
+ */
+
+ for (i = 0; i < 16; i++)
+ {
+ basepri[i] = g_highpri.basepri[i];
+ }
+
+ handler = g_highpri.handler;
+ thread = g_highpri.thread;
+
+ /* Then print out what is happening */
+
+ printf("Elapsed time: %d seconds\n\n", seconds);
+ for (i = 0, total = 0; i < 16; i++)
+ {
+ total += basepri[i];
+ }
+
+ if (total > 0)
+ {
+ for (i = 0; i < 16; i++)
+ {
+ if (basepri[i] > 0)
+ {
+ printf(" basepri[%02x]: %lld (%d%%)\n",
+ i << 4, basepri[i],
+ (int)((100 * basepri[i] + (total / 2)) / total));
+ }
+ }
+ }
+
+ total = handler + thread;
+ if (total > 0)
+ {
+ printf(" Handler: %lld (%d%%)\n",
+ handler, (int)((100*handler + (total / 2)) / total));
+ printf(" Thread: %lld (%d%%)\n\n",
+ thread, (int)((100*thread + (total / 2)) / total));
+ }
+ }
+
+ ret = EXIT_SUCCESS;
+
+errout:
+ return ret;
+}
+
+#endif /* CONFIG_NRF52840DK_HIGHPRI */