Daniel Sygut / Application

lol

Dependencies:   MMA8451Q

Fork of Application by Mateusz Kowalik

mbed-dev/targets/TARGET_STM/us_ticker_32b.c@12:3a30cdffa27c, 2018-01-21 (annotated)

Committer:
danix
Date:
Sun Jan 21 22:28:30 2018 +0000
Revision:
12:3a30cdffa27c
Parent:
10:41552d038a69 
Working acelerometer and mouse

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Zaitsev 10:41552d038a69 1 /* mbed Microcontroller Library
Zaitsev 10:41552d038a69 2 * Copyright (c) 2006-2016 ARM Limited
Zaitsev 10:41552d038a69 3 *
Zaitsev 10:41552d038a69 4 * Licensed under the Apache License, Version 2.0 (the "License");
Zaitsev 10:41552d038a69 5 * you may not use this file except in compliance with the License.
Zaitsev 10:41552d038a69 6 * You may obtain a copy of the License at
Zaitsev 10:41552d038a69 7 *
Zaitsev 10:41552d038a69 8 * http://www.apache.org/licenses/LICENSE-2.0
Zaitsev 10:41552d038a69 9 *
Zaitsev 10:41552d038a69 10 * Unless required by applicable law or agreed to in writing, software
Zaitsev 10:41552d038a69 11 * distributed under the License is distributed on an "AS IS" BASIS,
Zaitsev 10:41552d038a69 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Zaitsev 10:41552d038a69 13 * See the License for the specific language governing permissions and
Zaitsev 10:41552d038a69 14 * limitations under the License.
Zaitsev 10:41552d038a69 15 */
Zaitsev 10:41552d038a69 16 #include <stddef.h>
Zaitsev 10:41552d038a69 17 #include "us_ticker_api.h"
Zaitsev 10:41552d038a69 18 #include "PeripheralNames.h"
Zaitsev 10:41552d038a69 19 #include "hal_tick.h"
Zaitsev 10:41552d038a69 20
Zaitsev 10:41552d038a69 21 // A 32-bit timer is used
Zaitsev 10:41552d038a69 22 #if !TIM_MST_16BIT
Zaitsev 10:41552d038a69 23
Zaitsev 10:41552d038a69 24 TIM_HandleTypeDef TimMasterHandle;
Zaitsev 10:41552d038a69 25
Zaitsev 10:41552d038a69 26 static int us_ticker_inited = 0;
Zaitsev 10:41552d038a69 27
Zaitsev 10:41552d038a69 28 void us_ticker_init(void)
Zaitsev 10:41552d038a69 29 {
Zaitsev 10:41552d038a69 30 if (us_ticker_inited) return;
Zaitsev 10:41552d038a69 31 us_ticker_inited = 1;
Zaitsev 10:41552d038a69 32
Zaitsev 10:41552d038a69 33 TimMasterHandle.Instance = TIM_MST;
Zaitsev 10:41552d038a69 34
Zaitsev 10:41552d038a69 35 HAL_InitTick(0); // The passed value is not used
Zaitsev 10:41552d038a69 36 }
Zaitsev 10:41552d038a69 37
Zaitsev 10:41552d038a69 38 uint32_t us_ticker_read()
Zaitsev 10:41552d038a69 39 {
Zaitsev 10:41552d038a69 40 if (!us_ticker_inited) us_ticker_init();
Zaitsev 10:41552d038a69 41 return TIM_MST->CNT;
Zaitsev 10:41552d038a69 42 }
Zaitsev 10:41552d038a69 43
Zaitsev 10:41552d038a69 44 void us_ticker_set_interrupt(timestamp_t timestamp)
Zaitsev 10:41552d038a69 45 {
Zaitsev 10:41552d038a69 46 TimMasterHandle.Instance = TIM_MST;
Zaitsev 10:41552d038a69 47 // Set new output compare value
Zaitsev 10:41552d038a69 48 __HAL_TIM_SET_COMPARE(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)timestamp);
Zaitsev 10:41552d038a69 49 // Enable IT
Zaitsev 10:41552d038a69 50 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
Zaitsev 10:41552d038a69 51 }
Zaitsev 10:41552d038a69 52
Zaitsev 10:41552d038a69 53 void us_ticker_disable_interrupt(void)
Zaitsev 10:41552d038a69 54 {
Zaitsev 10:41552d038a69 55 TimMasterHandle.Instance = TIM_MST;
Zaitsev 10:41552d038a69 56 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
Zaitsev 10:41552d038a69 57 }
Zaitsev 10:41552d038a69 58
Zaitsev 10:41552d038a69 59 void us_ticker_clear_interrupt(void)
Zaitsev 10:41552d038a69 60 {
Zaitsev 10:41552d038a69 61 TimMasterHandle.Instance = TIM_MST;
Zaitsev 10:41552d038a69 62 __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC1);
Zaitsev 10:41552d038a69 63 }
Zaitsev 10:41552d038a69 64
Zaitsev 10:41552d038a69 65 #endif // !TIM_MST_16BIT