Tux Leon / mbed-dev

mbed library sources. Supersedes mbed-src.

Fork of mbed-dev by mbed official

targets/hal/TARGET_NXP/TARGET_LPC13XX/sleep.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)

Committer:
<>
Date:
Fri Sep 02 15:07:44 2016 +0100
Revision:
144:ef7eb2e8f9f7
Parent:
0:9b334a45a8ff 
This updates the lib to the mbed lib v125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2006-2013 ARM Limited
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 5 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 6 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 13 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 14 * limitations under the License.
<> 144:ef7eb2e8f9f7 15 */
<> 144:ef7eb2e8f9f7 16 #include "sleep_api.h"
<> 144:ef7eb2e8f9f7 17 #include "cmsis.h"
<> 144:ef7eb2e8f9f7 18 #include "mbed_interface.h"
<> 144:ef7eb2e8f9f7 19
<> 144:ef7eb2e8f9f7 20 void sleep(void) {
<> 144:ef7eb2e8f9f7 21 // PCON[PD] set to sleep
<> 144:ef7eb2e8f9f7 22 LPC_PMU->PCON = 0x0;
<> 144:ef7eb2e8f9f7 23
<> 144:ef7eb2e8f9f7 24 // SRC[SLEEPDEEP] set to 0 = sleep
<> 144:ef7eb2e8f9f7 25 SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk;
<> 144:ef7eb2e8f9f7 26
<> 144:ef7eb2e8f9f7 27 // wait for interrupt
<> 144:ef7eb2e8f9f7 28 __WFI();
<> 144:ef7eb2e8f9f7 29 }
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 void deepsleep(void) {
<> 144:ef7eb2e8f9f7 32 // PCON[PD] set to deepsleep
<> 144:ef7eb2e8f9f7 33 LPC_PMU->PCON = 0x1;
<> 144:ef7eb2e8f9f7 34
<> 144:ef7eb2e8f9f7 35 // SRC[SLEEPDEEP] set to 1 = deep sleep
<> 144:ef7eb2e8f9f7 36 SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
<> 144:ef7eb2e8f9f7 37
<> 144:ef7eb2e8f9f7 38 // Power up everything after powerdown
<> 144:ef7eb2e8f9f7 39 LPC_SYSCON->PDAWAKECFG &= 0xFFFFF800;
<> 144:ef7eb2e8f9f7 40
<> 144:ef7eb2e8f9f7 41 // wait for interrupt
<> 144:ef7eb2e8f9f7 42 __WFI();
<> 144:ef7eb2e8f9f7 43 }