mbed library sources
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Diff: targets/hal/TARGET_Freescale/TARGET_KLXX/sleep.c
- Revision:
- 223:d98d59aec21a
- Parent:
- 222:96162ccfbf43
--- a/targets/hal/TARGET_Freescale/TARGET_KLXX/sleep.c Fri Jun 06 11:00:08 2014 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,54 +0,0 @@ -/* mbed Microcontroller Library - * Copyright (c) 2006-2013 ARM Limited - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -#include "sleep_api.h" -#include "cmsis.h" -#include "PeripheralPins.h" - -//Normal wait mode -void sleep(void) -{ - SMC->PMPROT = SMC_PMPROT_AVLLS_MASK | SMC_PMPROT_ALLS_MASK | SMC_PMPROT_AVLP_MASK; - - //Normal sleep mode for ARM core: - SCB->SCR = 0; - __WFI(); -} - -//Very low-power stop mode -void deepsleep(void) -{ - //Check if PLL/FLL is enabled: - uint32_t PLL_FLL_en = (MCG->C1 & MCG_C1_CLKS_MASK) == MCG_C1_CLKS(0); - - SMC->PMPROT = SMC_PMPROT_AVLLS_MASK | SMC_PMPROT_ALLS_MASK | SMC_PMPROT_AVLP_MASK; - SMC->PMCTRL = SMC_PMCTRL_STOPM(2); - - //Deep sleep for ARM core: - SCB->SCR = 1<<SCB_SCR_SLEEPDEEP_Pos; - - __WFI(); - - //Switch back to PLL as clock source if needed - //The interrupt that woke up the device will run at reduced speed - if (PLL_FLL_en) { - #ifdef MCG_C5_PLLCLKEN0_MASK //PLL available - if (MCG->C6 & (1<<MCG_C6_PLLS_SHIFT) != 0) /* If PLL */ - while((MCG->S & MCG_S_LOCK0_MASK) == 0x00U); /* Wait until locked */ - #endif - MCG->C1 &= ~MCG_C1_CLKS_MASK; - } - -}