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boards/arm/nrf52/nrf52840-dk: add highpri example configuration

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This commit is contained in:
raiden00pl 2020-07-18 10:03:44 +02:00 committed by Abdelatif Guettouche
parent 7db61992f9
commit f6235c52f7
5 changed files with 365 additions and 0 deletions
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4
boards/arm/nrf52/nrf52840-dk/Kconfig
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@ -5,4 +5,8 @@
if ARCH_BOARD_NRF52840_DK
config NRF52840DK_HIGHPRI
bool "High priority interrupt test"
default n
endif

48
boards/arm/nrf52/nrf52840-dk/configs/highpri/defconfig Normal file
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@ -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

6
boards/arm/nrf52/nrf52840-dk/scripts/flash_config.ld
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@ -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(.);

4
boards/arm/nrf52/nrf52840-dk/src/Makefile
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@ -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

303
boards/arm/nrf52/nrf52840-dk/src/nrf52_highpri.c Normal file
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@ -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 */