eunkyoung kim / mbed-src

mbed library sources modify the rtc/i2c

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Fork of mbed-src by eunkyoung kim

targets/hal/TARGET_NXP/TARGET_LPC13XX/sleep.c@577:545d200432a1, 2015-06-29 (annotated)

Committer:
eunkyoungkim
Date:
Mon Jun 29 05:49:52 2015 +0000
Revision:
577:545d200432a1
Parent:
14:096882eb0961 
modify the i2c.c/i2c.h

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 10:3bc89ef62ce7 1 /* mbed Microcontroller Library
emilmont 10:3bc89ef62ce7 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 10:3bc89ef62ce7 3 *
emilmont 10:3bc89ef62ce7 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 10:3bc89ef62ce7 5 * you may not use this file except in compliance with the License.
emilmont 10:3bc89ef62ce7 6 * You may obtain a copy of the License at
emilmont 10:3bc89ef62ce7 7 *
emilmont 10:3bc89ef62ce7 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 10:3bc89ef62ce7 9 *
emilmont 10:3bc89ef62ce7 10 * Unless required by applicable law or agreed to in writing, software
emilmont 10:3bc89ef62ce7 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 10:3bc89ef62ce7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 10:3bc89ef62ce7 13 * See the License for the specific language governing permissions and
emilmont 10:3bc89ef62ce7 14 * limitations under the License.
emilmont 10:3bc89ef62ce7 15 */
emilmont 10:3bc89ef62ce7 16 #include "sleep_api.h"
emilmont 10:3bc89ef62ce7 17 #include "cmsis.h"
emilmont 10:3bc89ef62ce7 18 #include "mbed_interface.h"
emilmont 10:3bc89ef62ce7 19
emilmont 10:3bc89ef62ce7 20 void sleep(void) {
emilmont 10:3bc89ef62ce7 21 // PCON[PD] set to sleep
emilmont 10:3bc89ef62ce7 22 LPC_PMU->PCON = 0x0;
emilmont 10:3bc89ef62ce7 23
emilmont 10:3bc89ef62ce7 24 // SRC[SLEEPDEEP] set to 0 = sleep
emilmont 10:3bc89ef62ce7 25 SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk;
emilmont 10:3bc89ef62ce7 26
emilmont 10:3bc89ef62ce7 27 // wait for interrupt
emilmont 10:3bc89ef62ce7 28 __WFI();
emilmont 10:3bc89ef62ce7 29 }
emilmont 10:3bc89ef62ce7 30
emilmont 10:3bc89ef62ce7 31 void deepsleep(void) {
emilmont 10:3bc89ef62ce7 32 // PCON[PD] set to deepsleep
emilmont 10:3bc89ef62ce7 33 LPC_PMU->PCON = 0x1;
emilmont 10:3bc89ef62ce7 34
emilmont 10:3bc89ef62ce7 35 // SRC[SLEEPDEEP] set to 1 = deep sleep
emilmont 10:3bc89ef62ce7 36 SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
emilmont 10:3bc89ef62ce7 37
emilmont 10:3bc89ef62ce7 38 // Power up everything after powerdown
emilmont 10:3bc89ef62ce7 39 LPC_SYSCON->PDAWAKECFG &= 0xFFFFF800;
emilmont 10:3bc89ef62ce7 40
emilmont 10:3bc89ef62ce7 41 // wait for interrupt
emilmont 10:3bc89ef62ce7 42 __WFI();
emilmont 10:3bc89ef62ce7 43 }