diff options
Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/sleep.c')
-rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/sleep.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/sleep.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/sleep.c new file mode 100644 index 0000000000..8b45d4593b --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/sleep.c @@ -0,0 +1,49 @@ +/* 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 "fsl_mcg_hal.h" +#include "fsl_smc_hal.h" + +void sleep(void) { + smc_power_mode_protection_config_t sleep_config = {true}; + SMC_HAL_SetProtection(SMC_BASE, &sleep_config); + + SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk; + __WFI(); +} + +void deepsleep(void) { + mcg_clock_select_t mcg_clock = CLOCK_HAL_GetClkSrcMode(MCG_BASE); + + smc_power_mode_protection_config_t sleep_config = {true}; + SMC_HAL_SetProtection(SMC_BASE, &sleep_config); + 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 (mcg_clock == kMcgClkSelOut) { + if (CLOCK_HAL_GetPllStatMode(MCG_BASE) == kMcgPllStatPllClkSel) { + while (CLOCK_HAL_GetLock0Mode(MCG_BASE) == kMcgLockUnlocked); + } + CLOCK_HAL_SetClkSrcMode(MCG_BASE, kMcgClkSelOut); + } +} |