Milen Pavlov / XRange_mbed_src

Mbed SDK for XRange SX1272 LoRa module

Dependents:   XRangePingPong XRange-LoRaWAN-lmic-app lora-transceiver

SX1272 LoRa RF module

https://www.netblocks.eu/xrange-sx1272-lora-datasheet/

targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/us_ticker.c@339:ac6f3fd999f3, 2016-01-07 (annotated)

Committer:
netblocks
Date:
Thu Jan 07 13:01:25 2016 +0000
Revision:
339:ac6f3fd999f3
Parent:
336:1e18a06a987b 
HSE_VALUE set for XTAL 16Mhz

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dudmuck 336:1e18a06a987b 1 /* mbed Microcontroller Library
dudmuck 336:1e18a06a987b 2 * Copyright (c) 2014, STMicroelectronics
dudmuck 336:1e18a06a987b 3 * All rights reserved.
dudmuck 336:1e18a06a987b 4 *
dudmuck 336:1e18a06a987b 5 * Redistribution and use in source and binary forms, with or without
dudmuck 336:1e18a06a987b 6 * modification, are permitted provided that the following conditions are met:
dudmuck 336:1e18a06a987b 7 *
dudmuck 336:1e18a06a987b 8 * 1. Redistributions of source code must retain the above copyright notice,
dudmuck 336:1e18a06a987b 9 * this list of conditions and the following disclaimer.
dudmuck 336:1e18a06a987b 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
dudmuck 336:1e18a06a987b 11 * this list of conditions and the following disclaimer in the documentation
dudmuck 336:1e18a06a987b 12 * and/or other materials provided with the distribution.
dudmuck 336:1e18a06a987b 13 * 3. Neither the name of STMicroelectronics nor the names of its contributors
dudmuck 336:1e18a06a987b 14 * may be used to endorse or promote products derived from this software
dudmuck 336:1e18a06a987b 15 * without specific prior written permission.
dudmuck 336:1e18a06a987b 16 *
dudmuck 336:1e18a06a987b 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
dudmuck 336:1e18a06a987b 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
dudmuck 336:1e18a06a987b 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
dudmuck 336:1e18a06a987b 20 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
dudmuck 336:1e18a06a987b 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
dudmuck 336:1e18a06a987b 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
dudmuck 336:1e18a06a987b 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
dudmuck 336:1e18a06a987b 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
dudmuck 336:1e18a06a987b 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
dudmuck 336:1e18a06a987b 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
dudmuck 336:1e18a06a987b 27 */
dudmuck 336:1e18a06a987b 28 #include <stddef.h>
dudmuck 336:1e18a06a987b 29 #include "us_ticker_api.h"
dudmuck 336:1e18a06a987b 30 #include "PeripheralNames.h"
dudmuck 336:1e18a06a987b 31
dudmuck 336:1e18a06a987b 32 #define TIM_MST TIM5
dudmuck 336:1e18a06a987b 33
dudmuck 336:1e18a06a987b 34 static TIM_HandleTypeDef TimMasterHandle;
dudmuck 336:1e18a06a987b 35 static int us_ticker_inited = 0;
dudmuck 336:1e18a06a987b 36
dudmuck 336:1e18a06a987b 37 void us_ticker_init(void)
dudmuck 336:1e18a06a987b 38 {
dudmuck 336:1e18a06a987b 39 if (us_ticker_inited) return;
dudmuck 336:1e18a06a987b 40 us_ticker_inited = 1;
dudmuck 336:1e18a06a987b 41
dudmuck 336:1e18a06a987b 42 TimMasterHandle.Instance = TIM_MST;
dudmuck 336:1e18a06a987b 43
dudmuck 336:1e18a06a987b 44 HAL_InitTick(0); // The passed value is not used
dudmuck 336:1e18a06a987b 45 }
dudmuck 336:1e18a06a987b 46
dudmuck 336:1e18a06a987b 47 uint32_t us_ticker_read()
dudmuck 336:1e18a06a987b 48 {
dudmuck 336:1e18a06a987b 49 if (!us_ticker_inited) us_ticker_init();
dudmuck 336:1e18a06a987b 50 return TIM_MST->CNT;
dudmuck 336:1e18a06a987b 51 }
dudmuck 336:1e18a06a987b 52
dudmuck 336:1e18a06a987b 53 void us_ticker_set_interrupt(timestamp_t timestamp)
dudmuck 336:1e18a06a987b 54 {
dudmuck 336:1e18a06a987b 55 // Set new output compare value
dudmuck 336:1e18a06a987b 56 __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)timestamp);
dudmuck 336:1e18a06a987b 57 // Enable IT
dudmuck 336:1e18a06a987b 58 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
dudmuck 336:1e18a06a987b 59 }
dudmuck 336:1e18a06a987b 60
dudmuck 336:1e18a06a987b 61 void us_ticker_disable_interrupt(void)
dudmuck 336:1e18a06a987b 62 {
dudmuck 336:1e18a06a987b 63 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
dudmuck 336:1e18a06a987b 64 }
dudmuck 336:1e18a06a987b 65
dudmuck 336:1e18a06a987b 66 void us_ticker_clear_interrupt(void)
dudmuck 336:1e18a06a987b 67 {
dudmuck 336:1e18a06a987b 68 __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC1);
dudmuck 336:1e18a06a987b 69 }