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targets/hal/TARGET_STM/TARGET_STM32F3/us_ticker.c@508:4f5903e025e6, 2015-04-09 (annotated)

Committer:
mbed_official
Date:
Thu Apr 09 06:45:08 2015 +0100
Revision:
508:4f5903e025e6
Parent:
targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/us_ticker.c@402:09075a3b15e3 
Synchronized with git revision 643cd23443352254ef51f4be0974b6e526142078



Full URL: https://github.com/mbedmicro/mbed/commit/643cd23443352254ef51f4be0974b6e526142078/



STM32F3xx - hal reorganization

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 125:23cc3068a9e4 1 /* mbed Microcontroller Library
mbed_official 125:23cc3068a9e4 2 * Copyright (c) 2014, STMicroelectronics
mbed_official 125:23cc3068a9e4 3 * All rights reserved.
mbed_official 125:23cc3068a9e4 4 *
mbed_official 125:23cc3068a9e4 5 * Redistribution and use in source and binary forms, with or without
mbed_official 125:23cc3068a9e4 6 * modification, are permitted provided that the following conditions are met:
mbed_official 125:23cc3068a9e4 7 *
mbed_official 125:23cc3068a9e4 8 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 125:23cc3068a9e4 9 * this list of conditions and the following disclaimer.
mbed_official 125:23cc3068a9e4 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 125:23cc3068a9e4 11 * this list of conditions and the following disclaimer in the documentation
mbed_official 125:23cc3068a9e4 12 * and/or other materials provided with the distribution.
mbed_official 125:23cc3068a9e4 13 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 125:23cc3068a9e4 14 * may be used to endorse or promote products derived from this software
mbed_official 125:23cc3068a9e4 15 * without specific prior written permission.
mbed_official 125:23cc3068a9e4 16 *
mbed_official 125:23cc3068a9e4 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 125:23cc3068a9e4 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 125:23cc3068a9e4 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 125:23cc3068a9e4 20 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 125:23cc3068a9e4 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 125:23cc3068a9e4 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 125:23cc3068a9e4 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 125:23cc3068a9e4 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 125:23cc3068a9e4 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 125:23cc3068a9e4 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 125:23cc3068a9e4 27 */
mbed_official 125:23cc3068a9e4 28 #include <stddef.h>
mbed_official 125:23cc3068a9e4 29 #include "us_ticker_api.h"
mbed_official 125:23cc3068a9e4 30 #include "PeripheralNames.h"
mbed_official 125:23cc3068a9e4 31
mbed_official 125:23cc3068a9e4 32 // 32-bit timer selection
mbed_official 330:c80ac197fa6a 33 #define TIM_MST TIM2
mbed_official 125:23cc3068a9e4 34
mbed_official 330:c80ac197fa6a 35 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 125:23cc3068a9e4 36 static int us_ticker_inited = 0;
mbed_official 125:23cc3068a9e4 37
mbed_official 330:c80ac197fa6a 38 void us_ticker_init(void)
mbed_official 330:c80ac197fa6a 39 {
mbed_official 125:23cc3068a9e4 40 if (us_ticker_inited) return;
mbed_official 125:23cc3068a9e4 41 us_ticker_inited = 1;
mbed_official 135:067cc8ba23da 42
mbed_official 330:c80ac197fa6a 43 TimMasterHandle.Instance = TIM_MST;
mbed_official 135:067cc8ba23da 44
mbed_official 402:09075a3b15e3 45 HAL_InitTick(0); // The passed value is not used
mbed_official 125:23cc3068a9e4 46 }
mbed_official 125:23cc3068a9e4 47
mbed_official 330:c80ac197fa6a 48 uint32_t us_ticker_read()
mbed_official 330:c80ac197fa6a 49 {
mbed_official 125:23cc3068a9e4 50 if (!us_ticker_inited) us_ticker_init();
mbed_official 125:23cc3068a9e4 51 return TIM_MST->CNT;
mbed_official 125:23cc3068a9e4 52 }
mbed_official 125:23cc3068a9e4 53
mbed_official 330:c80ac197fa6a 54 void us_ticker_set_interrupt(timestamp_t timestamp)
mbed_official 330:c80ac197fa6a 55 {
mbed_official 125:23cc3068a9e4 56 // Set new output compare value
mbed_official 330:c80ac197fa6a 57 __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)timestamp);
mbed_official 125:23cc3068a9e4 58 // Enable IT
mbed_official 330:c80ac197fa6a 59 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 125:23cc3068a9e4 60 }
mbed_official 125:23cc3068a9e4 61
mbed_official 330:c80ac197fa6a 62 void us_ticker_disable_interrupt(void)
mbed_official 330:c80ac197fa6a 63 {
mbed_official 330:c80ac197fa6a 64 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 125:23cc3068a9e4 65 }
mbed_official 125:23cc3068a9e4 66
mbed_official 330:c80ac197fa6a 67 void us_ticker_clear_interrupt(void)
mbed_official 330:c80ac197fa6a 68 {
mbed_official 330:c80ac197fa6a 69 __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 125:23cc3068a9e4 70 }