mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
targets/TARGET_NORDIC/TARGET_NRF5x/lp_ticker.c
- Committer:
- AnnaBridge
- Date:
- 2019-02-20
- Revision:
- 189:f392fc9709a3
- Parent:
- 188:bcfe06ba3d64
File content as of revision 189:f392fc9709a3:
/* mbed Microcontroller Library * Copyright (c) 2015 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 "lp_ticker_api.h" #include "common_rtc.h" #include "platform/mbed_critical.h" #if DEVICE_LPTICKER /* LP ticker is driven by 32kHz clock and counter length is 24 bits. */ const ticker_info_t* lp_ticker_get_info() { static const ticker_info_t info = { RTC_FREQ, RTC_COUNTER_BITS }; return &info; } void lp_ticker_init(void) { common_rtc_init(); } void lp_ticker_free(void) { common_rtc_free(); } uint32_t lp_ticker_read() { return nrf_rtc_counter_get(COMMON_RTC_INSTANCE); } void lp_ticker_set_interrupt(timestamp_t timestamp) { common_rtc_set_interrupt(timestamp, LP_TICKER_CC_CHANNEL, LP_TICKER_INT_MASK); } void lp_ticker_fire_interrupt(void) { core_util_critical_section_enter(); lp_ticker_interrupt_fire = true; NVIC_SetPendingIRQ(RTC1_IRQn); core_util_critical_section_exit(); } void lp_ticker_disable_interrupt(void) { nrf_rtc_int_disable(COMMON_RTC_INSTANCE, LP_TICKER_INT_MASK); } void lp_ticker_clear_interrupt(void) { nrf_rtc_event_clear(COMMON_RTC_INSTANCE, LP_TICKER_EVENT); } #endif // DEVICE_LPTICKER