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mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_STM/TARGET_STM32F3/us_ticker.c@621:9c82b0f79f3d, 2015-09-11 (annotated)

Committer:
mbed_official
Date:
Fri Sep 11 09:30:09 2015 +0100
Revision:
621:9c82b0f79f3d
Parent:
508:4f5903e025e6 
Synchronized with git revision 6c1d63e069ab9bd86de92e8296ca783681257538



Full URL: https://github.com/mbedmicro/mbed/commit/6c1d63e069ab9bd86de92e8296ca783681257538/



ignore target files not supported by the yotta module

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 }