mirror of https://github.com/ARMmbed/mbed-os.git
76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
/* mbed Microcontroller Library
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* (C)Copyright TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION 2018 All rights reserved
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* SPDX-License-Identifier: Apache-2.0
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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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#include "gpio_include.h"
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static void warming_up_time(void);
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void hal_sleep(void)
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{
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// Set low power consumption mode IDLE
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TSB_CG->STBYCR = CG_STBY_MODE_IDLE;
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__DSB(); // Enter idle mode
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__WFI();
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}
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void hal_deepsleep(void)
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{
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uint32_t tmp;
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// WDT sysclock enable
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TSB_CG_FSYSENB_IPENB31 = ENABLE;
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while ((TSB_FC->SR0 & 0x01) != 0x01); // Flash Wait
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// Wait for end of Warming-up for IHOSC1
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while(TSB_CG_WUPHCR_WUEF);
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// Set Warm-up clock to IHOSC1
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TSB_CG_WUPHCR_WUCLK = DISABLE;
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// Set Warming-up time (xxxx) for IHOSC1 return from STOP1 mode
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warming_up_time();
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// Set low power consumption mode STOP1
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TSB_CG->STBYCR = CG_STBY_MODE_STOP1;
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// Set PLL of fsys to fosc(= PLL no USE)
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TSB_CG_PLL0SEL_PLL0SEL = DISABLE;
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// Wait for PLL status of fsys until off state(fosc = 0)
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while(TSB_CG_PLL0SEL_PLL0ST);
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TSB_CG_PLL0SEL_PLL0ON = DISABLE; // Stop PLL of fsys
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TSB_CG_OSCCR_IHOSC1EN = ENABLE; // Enable IHOSC1
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TSB_CG_OSCCR_OSCSEL = DISABLE; // Set fosc to IHOSC1
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while(TSB_CG_OSCCR_OSCF); // Wait for fosc status until IHOSC1
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tmp = TSB_CG->OSCCR; // Set EHOSC off
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tmp &= EXTERNEL_OSC_MASK;
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TSB_CG->OSCCR = tmp;
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TSB_CG_OSCCR_IHOSC2EN = DISABLE; //Stop IHOSC2 of OFD
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// Wait for status of OFD until off ”0”
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while(TSB_CG_OSCCR_IHOSC2F);
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__DSB(); // Enter STOP1 mode
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__WFI();
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}
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static void warming_up_time(void)
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{
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uint32_t work;
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uint64_t x;
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x = (uint64_t)((uint64_t)(IHOSC_CFG_WARM_UP_TIME) * (uint64_t)(IHOSC_CFG_CLOCK));
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x = (uint64_t)(x / (uint64_t)(1000000));
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if (x > (uint64_t)(0xFFFF)) {
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// invalid value
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}
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work = (uint32_t)x;
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work &= (uint32_t)(0xFFFFFFF0);
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work <<= 16;
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work |= (uint32_t)(TSB_CG->WUPHCR & ~CGWUPHCR_WUPT_HIGH_MASK);
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TSB_CG->WUPHCR = work;
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}
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