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67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2015-2016 Nuvoton
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "sleep_api.h"
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#if DEVICE_SLEEP
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#include "cmsis.h"
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#include "device.h"
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#include "objects.h"
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#include "PeripheralPins.h"
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#include <stdbool.h>
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#if DEVICE_SERIAL
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bool serial_can_deep_sleep(void);
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#endif
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/**
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* Enter idle mode, in which just CPU is halted.
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*/
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void hal_sleep(void)
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{
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SYS_UnlockReg();
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CLK_Idle();
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SYS_LockReg();
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}
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/**
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* Enter power-down mode, in which HXT/HIRC are halted.
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*
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* \note On NUC472, on wake-up from power-down mode, we may meet hard fault or
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* some other unknown error. Before its cause is found, we enter idle mode
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* instead for a workaround. To simulate power-down mode with idle mode, we
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* also disable us_ticker during power-down period.
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*/
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#include "nu_modutil.h"
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const struct nu_modinit_s *nu_us_ticker_modinit(void);
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void hal_deepsleep(void)
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{
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#if DEVICE_SERIAL
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if (!serial_can_deep_sleep()) {
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return;
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}
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#endif
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CLK_DisableModuleClock(nu_us_ticker_modinit()->clkidx);
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SYS_UnlockReg();
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CLK_Idle();
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SYS_LockReg();
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CLK_EnableModuleClock(nu_us_ticker_modinit()->clkidx);
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}
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#endif
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