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mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_Freescale/TARGET_KLXX/sleep.c@111:ae4891ca7084, 2014-03-06 (annotated)

Committer:
mbed_official
Date:
Thu Mar 06 10:00:06 2014 +0000
Revision:
111:ae4891ca7084
Parent:
82:0b31dbcd4769
Child:
363:12a245e5c745
Synchronized with git revision 955bd9a5c9e042f1cf30bbae2a99afaab8eb4cbf



Full URL: https://github.com/mbedmicro/mbed/commit/955bd9a5c9e042f1cf30bbae2a99afaab8eb4cbf/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 82:0b31dbcd4769 1 /* mbed Microcontroller Library
mbed_official 82:0b31dbcd4769 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 82:0b31dbcd4769 3 *
mbed_official 82:0b31dbcd4769 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 82:0b31dbcd4769 5 * you may not use this file except in compliance with the License.
mbed_official 82:0b31dbcd4769 6 * You may obtain a copy of the License at
mbed_official 82:0b31dbcd4769 7 *
mbed_official 82:0b31dbcd4769 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 82:0b31dbcd4769 9 *
mbed_official 82:0b31dbcd4769 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 82:0b31dbcd4769 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 82:0b31dbcd4769 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 82:0b31dbcd4769 13 * See the License for the specific language governing permissions and
mbed_official 82:0b31dbcd4769 14 * limitations under the License.
mbed_official 82:0b31dbcd4769 15 */
mbed_official 82:0b31dbcd4769 16 #include "sleep_api.h"
mbed_official 82:0b31dbcd4769 17 #include "cmsis.h"
mbed_official 82:0b31dbcd4769 18 #include "PeripheralPins.h"
mbed_official 82:0b31dbcd4769 19
mbed_official 82:0b31dbcd4769 20 //Normal wait mode
mbed_official 82:0b31dbcd4769 21 void sleep(void)
mbed_official 82:0b31dbcd4769 22 {
mbed_official 82:0b31dbcd4769 23 SMC->PMPROT = SMC_PMPROT_AVLLS_MASK | SMC_PMPROT_ALLS_MASK | SMC_PMPROT_AVLP_MASK;
mbed_official 82:0b31dbcd4769 24
mbed_official 82:0b31dbcd4769 25 //Normal sleep mode for ARM core:
mbed_official 82:0b31dbcd4769 26 SCB->SCR = 0;
mbed_official 82:0b31dbcd4769 27 __WFI();
mbed_official 82:0b31dbcd4769 28 }
mbed_official 82:0b31dbcd4769 29
mbed_official 82:0b31dbcd4769 30 //Very low-power stop mode
mbed_official 82:0b31dbcd4769 31 void deepsleep(void)
mbed_official 82:0b31dbcd4769 32 {
mbed_official 82:0b31dbcd4769 33 //Check if PLL/FLL is enabled:
mbed_official 82:0b31dbcd4769 34 uint32_t PLL_FLL_en = (MCG->C1 & MCG_C1_CLKS_MASK) == MCG_C1_CLKS(0);
mbed_official 82:0b31dbcd4769 35
mbed_official 82:0b31dbcd4769 36 SMC->PMPROT = SMC_PMPROT_AVLLS_MASK | SMC_PMPROT_ALLS_MASK | SMC_PMPROT_AVLP_MASK;
mbed_official 82:0b31dbcd4769 37 SMC->PMCTRL = SMC_PMCTRL_STOPM(2);
mbed_official 82:0b31dbcd4769 38
mbed_official 82:0b31dbcd4769 39 //Deep sleep for ARM core:
mbed_official 82:0b31dbcd4769 40 SCB->SCR = 1<<SCB_SCR_SLEEPDEEP_Pos;
mbed_official 82:0b31dbcd4769 41
mbed_official 82:0b31dbcd4769 42 __WFI();
mbed_official 82:0b31dbcd4769 43
mbed_official 82:0b31dbcd4769 44 //Switch back to PLL as clock source if needed
mbed_official 82:0b31dbcd4769 45 //The interrupt that woke up the device will run at reduced speed
mbed_official 82:0b31dbcd4769 46 if (PLL_FLL_en) {
mbed_official 82:0b31dbcd4769 47 #ifdef MCG_C5_PLLCLKEN0_MASK //PLL available
mbed_official 82:0b31dbcd4769 48 if (MCG->C6 & (1<<MCG_C6_PLLS_SHIFT) != 0) /* If PLL */
mbed_official 82:0b31dbcd4769 49 while((MCG->S & MCG_S_LOCK0_MASK) == 0x00U); /* Wait until locked */
mbed_official 82:0b31dbcd4769 50 #endif
mbed_official 82:0b31dbcd4769 51 MCG->C1 &= ~MCG_C1_CLKS_MASK;
mbed_official 82:0b31dbcd4769 52 }
mbed_official 82:0b31dbcd4769 53
mbed_official 82:0b31dbcd4769 54 }