Maxim Ibragimov / mbed-dev

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Dependents:   Nucleo_F103RB_RTC_battery_bkup_pwr_off_okay

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targets/TARGET_NORDIC/TARGET_NRF5/lp_ticker.c@177:619788de047e, 2017-11-07 (annotated)

Committer:
maxxir
Date:
Tue Nov 07 16:46:29 2017 +0000
Revision:
177:619788de047e
Parent:
174:b96e65c34a4d 
To fix broken RTC on Nucleo_F103RB / STM32F103 BluePill etc..;  Used direct RTC register manipulation for STM32F1xx;  rtc_read() && rtc_write()  (native rtc_init() - works good);  also added stub for non-working on STM32F1xx rtc_read_subseconds().

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2015 ARM Limited
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 5 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 6 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 13 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 14 * limitations under the License.
<> 144:ef7eb2e8f9f7 15 */
<> 144:ef7eb2e8f9f7 16 #include "lp_ticker_api.h"
<> 144:ef7eb2e8f9f7 17
<> 144:ef7eb2e8f9f7 18 #if DEVICE_LOWPOWERTIMER
<> 144:ef7eb2e8f9f7 19
<> 144:ef7eb2e8f9f7 20 #include "common_rtc.h"
<> 144:ef7eb2e8f9f7 21
<> 144:ef7eb2e8f9f7 22 void lp_ticker_init(void)
<> 144:ef7eb2e8f9f7 23 {
<> 144:ef7eb2e8f9f7 24 common_rtc_init();
<> 144:ef7eb2e8f9f7 25 }
<> 144:ef7eb2e8f9f7 26
<> 144:ef7eb2e8f9f7 27 uint32_t lp_ticker_read()
<> 144:ef7eb2e8f9f7 28 {
<> 144:ef7eb2e8f9f7 29 return (uint32_t)common_rtc_64bit_us_get();
<> 144:ef7eb2e8f9f7 30 }
<> 144:ef7eb2e8f9f7 31
<> 144:ef7eb2e8f9f7 32 void lp_ticker_set_interrupt(timestamp_t timestamp)
<> 144:ef7eb2e8f9f7 33 {
<> 144:ef7eb2e8f9f7 34 common_rtc_set_interrupt(timestamp,
<> 144:ef7eb2e8f9f7 35 LP_TICKER_CC_CHANNEL, LP_TICKER_INT_MASK);
<> 144:ef7eb2e8f9f7 36 }
<> 144:ef7eb2e8f9f7 37
AnnaBridge 174:b96e65c34a4d 38 void lp_ticker_fire_interrupt(void)
AnnaBridge 174:b96e65c34a4d 39 {
AnnaBridge 174:b96e65c34a4d 40 uint32_t closest_safe_compare = common_rtc_32bit_ticks_get() + 2;
AnnaBridge 174:b96e65c34a4d 41
AnnaBridge 174:b96e65c34a4d 42 nrf_rtc_cc_set(COMMON_RTC_INSTANCE, LP_TICKER_CC_CHANNEL, RTC_WRAP(closest_safe_compare));
AnnaBridge 174:b96e65c34a4d 43 nrf_rtc_event_enable(COMMON_RTC_INSTANCE, LP_TICKER_INT_MASK);
AnnaBridge 174:b96e65c34a4d 44 }
AnnaBridge 174:b96e65c34a4d 45
<> 144:ef7eb2e8f9f7 46 void lp_ticker_disable_interrupt(void)
<> 144:ef7eb2e8f9f7 47 {
<> 144:ef7eb2e8f9f7 48 nrf_rtc_event_disable(COMMON_RTC_INSTANCE, LP_TICKER_INT_MASK);
<> 144:ef7eb2e8f9f7 49 }
<> 144:ef7eb2e8f9f7 50
<> 144:ef7eb2e8f9f7 51 void lp_ticker_clear_interrupt(void)
<> 144:ef7eb2e8f9f7 52 {
<> 144:ef7eb2e8f9f7 53 nrf_rtc_event_clear(COMMON_RTC_INSTANCE, LP_TICKER_EVENT);
<> 144:ef7eb2e8f9f7 54 }
<> 144:ef7eb2e8f9f7 55
<> 144:ef7eb2e8f9f7 56 #endif // DEVICE_LOWPOWERTIMER