Mateusz Kowalik / Application

USB Serial application

Fork of USBSerial_HelloWorld by Samuel Mokrani

mbed-dev/targets/TARGET_NXP/TARGET_LPC13XX/sleep.c@11:b3f2a8bdac4d, 2017-12-16 (annotated)

Committer:
Zaitsev
Date:
Sat Dec 16 10:26:48 2017 +0000
Revision:
11:b3f2a8bdac4d
Parent:
10:41552d038a69 
A copy for D.S;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Zaitsev 10:41552d038a69 1 /* mbed Microcontroller Library
Zaitsev 10:41552d038a69 2 * Copyright (c) 2006-2013 ARM Limited
Zaitsev 10:41552d038a69 3 *
Zaitsev 10:41552d038a69 4 * Licensed under the Apache License, Version 2.0 (the "License");
Zaitsev 10:41552d038a69 5 * you may not use this file except in compliance with the License.
Zaitsev 10:41552d038a69 6 * You may obtain a copy of the License at
Zaitsev 10:41552d038a69 7 *
Zaitsev 10:41552d038a69 8 * http://www.apache.org/licenses/LICENSE-2.0
Zaitsev 10:41552d038a69 9 *
Zaitsev 10:41552d038a69 10 * Unless required by applicable law or agreed to in writing, software
Zaitsev 10:41552d038a69 11 * distributed under the License is distributed on an "AS IS" BASIS,
Zaitsev 10:41552d038a69 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Zaitsev 10:41552d038a69 13 * See the License for the specific language governing permissions and
Zaitsev 10:41552d038a69 14 * limitations under the License.
Zaitsev 10:41552d038a69 15 */
Zaitsev 10:41552d038a69 16 #include "sleep_api.h"
Zaitsev 10:41552d038a69 17 #include "cmsis.h"
Zaitsev 10:41552d038a69 18 #include "mbed_interface.h"
Zaitsev 10:41552d038a69 19
Zaitsev 10:41552d038a69 20 void sleep(void) {
Zaitsev 10:41552d038a69 21 // PCON[PD] set to sleep
Zaitsev 10:41552d038a69 22 LPC_PMU->PCON = 0x0;
Zaitsev 10:41552d038a69 23
Zaitsev 10:41552d038a69 24 // SRC[SLEEPDEEP] set to 0 = sleep
Zaitsev 10:41552d038a69 25 SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk;
Zaitsev 10:41552d038a69 26
Zaitsev 10:41552d038a69 27 // wait for interrupt
Zaitsev 10:41552d038a69 28 __WFI();
Zaitsev 10:41552d038a69 29 }
Zaitsev 10:41552d038a69 30
Zaitsev 10:41552d038a69 31 void deepsleep(void) {
Zaitsev 10:41552d038a69 32 // PCON[PD] set to deepsleep
Zaitsev 10:41552d038a69 33 LPC_PMU->PCON = 0x1;
Zaitsev 10:41552d038a69 34
Zaitsev 10:41552d038a69 35 // SRC[SLEEPDEEP] set to 1 = deep sleep
Zaitsev 10:41552d038a69 36 SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
Zaitsev 10:41552d038a69 37
Zaitsev 10:41552d038a69 38 // Power up everything after powerdown
Zaitsev 10:41552d038a69 39 LPC_SYSCON->PDAWAKECFG &= 0xFFFFF800;
Zaitsev 10:41552d038a69 40
Zaitsev 10:41552d038a69 41 // wait for interrupt
Zaitsev 10:41552d038a69 42 __WFI();
Zaitsev 10:41552d038a69 43 }