Marco Mayer / Mbed OS Queue

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

mbed-os/targets/TARGET_NXP/TARGET_LPC13XX/sleep.c@0:6bf0743ece18, 2020-03-28 (annotated)

Committer:
demayer
Date:
Sat Mar 28 15:28:19 2020 +0000
Revision:
0:6bf0743ece18
IMU Thread with an event-queue running parallel to handle tasks like a 5 times blinking LED. Button with interrupt detected.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
demayer 0:6bf0743ece18 1 /* mbed Microcontroller Library
demayer 0:6bf0743ece18 2 * Copyright (c) 2006-2013 ARM Limited
demayer 0:6bf0743ece18 3 *
demayer 0:6bf0743ece18 4 * Licensed under the Apache License, Version 2.0 (the "License");
demayer 0:6bf0743ece18 5 * you may not use this file except in compliance with the License.
demayer 0:6bf0743ece18 6 * You may obtain a copy of the License at
demayer 0:6bf0743ece18 7 *
demayer 0:6bf0743ece18 8 * http://www.apache.org/licenses/LICENSE-2.0
demayer 0:6bf0743ece18 9 *
demayer 0:6bf0743ece18 10 * Unless required by applicable law or agreed to in writing, software
demayer 0:6bf0743ece18 11 * distributed under the License is distributed on an "AS IS" BASIS,
demayer 0:6bf0743ece18 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
demayer 0:6bf0743ece18 13 * See the License for the specific language governing permissions and
demayer 0:6bf0743ece18 14 * limitations under the License.
demayer 0:6bf0743ece18 15 */
demayer 0:6bf0743ece18 16 #include "sleep_api.h"
demayer 0:6bf0743ece18 17 #include "cmsis.h"
demayer 0:6bf0743ece18 18 #include "mbed_interface.h"
demayer 0:6bf0743ece18 19
demayer 0:6bf0743ece18 20 void hal_sleep(void) {
demayer 0:6bf0743ece18 21 // PCON[PD] set to sleep
demayer 0:6bf0743ece18 22 LPC_PMU->PCON = 0x0;
demayer 0:6bf0743ece18 23
demayer 0:6bf0743ece18 24 // SRC[SLEEPDEEP] set to 0 = sleep
demayer 0:6bf0743ece18 25 SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk;
demayer 0:6bf0743ece18 26
demayer 0:6bf0743ece18 27 // wait for interrupt
demayer 0:6bf0743ece18 28 __WFI();
demayer 0:6bf0743ece18 29 }
demayer 0:6bf0743ece18 30
demayer 0:6bf0743ece18 31 void hal_deepsleep(void) {
demayer 0:6bf0743ece18 32 // PCON[PD] set to deepsleep
demayer 0:6bf0743ece18 33 LPC_PMU->PCON = 0x1;
demayer 0:6bf0743ece18 34
demayer 0:6bf0743ece18 35 // SRC[SLEEPDEEP] set to 1 = deep sleep
demayer 0:6bf0743ece18 36 SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
demayer 0:6bf0743ece18 37
demayer 0:6bf0743ece18 38 // Power up everything after powerdown
demayer 0:6bf0743ece18 39 LPC_SYSCON->PDAWAKECFG &= 0xFFFFF800;
demayer 0:6bf0743ece18 40
demayer 0:6bf0743ece18 41 // wait for interrupt
demayer 0:6bf0743ece18 42 __WFI();
demayer 0:6bf0743ece18 43 }