mbed official / mbed-src

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_STM32F4/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:
442:d916d321e60f 
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 441:d2c15dda23c1 1 /* mbed Microcontroller Library
mbed_official 441:d2c15dda23c1 2 * Copyright (c) 2014, STMicroelectronics
mbed_official 441:d2c15dda23c1 3 * All rights reserved.
mbed_official 441:d2c15dda23c1 4 *
mbed_official 441:d2c15dda23c1 5 * Redistribution and use in source and binary forms, with or without
mbed_official 441:d2c15dda23c1 6 * modification, are permitted provided that the following conditions are met:
mbed_official 441:d2c15dda23c1 7 *
mbed_official 441:d2c15dda23c1 8 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 441:d2c15dda23c1 9 * this list of conditions and the following disclaimer.
mbed_official 441:d2c15dda23c1 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 441:d2c15dda23c1 11 * this list of conditions and the following disclaimer in the documentation
mbed_official 441:d2c15dda23c1 12 * and/or other materials provided with the distribution.
mbed_official 441:d2c15dda23c1 13 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 441:d2c15dda23c1 14 * may be used to endorse or promote products derived from this software
mbed_official 441:d2c15dda23c1 15 * without specific prior written permission.
mbed_official 441:d2c15dda23c1 16 *
mbed_official 441:d2c15dda23c1 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 441:d2c15dda23c1 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 441:d2c15dda23c1 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 441:d2c15dda23c1 20 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 441:d2c15dda23c1 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 441:d2c15dda23c1 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 441:d2c15dda23c1 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 441:d2c15dda23c1 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 441:d2c15dda23c1 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 441:d2c15dda23c1 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 441:d2c15dda23c1 27 */
mbed_official 441:d2c15dda23c1 28 #include <stddef.h>
mbed_official 441:d2c15dda23c1 29 #include "us_ticker_api.h"
mbed_official 441:d2c15dda23c1 30 #include "PeripheralNames.h"
mbed_official 441:d2c15dda23c1 31
mbed_official 441:d2c15dda23c1 32 #define TIM_MST TIM5
mbed_official 441:d2c15dda23c1 33
mbed_official 441:d2c15dda23c1 34 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 441:d2c15dda23c1 35 static int us_ticker_inited = 0;
mbed_official 441:d2c15dda23c1 36
mbed_official 441:d2c15dda23c1 37 void us_ticker_init(void)
mbed_official 441:d2c15dda23c1 38 {
mbed_official 441:d2c15dda23c1 39 if (us_ticker_inited) return;
mbed_official 441:d2c15dda23c1 40 us_ticker_inited = 1;
mbed_official 441:d2c15dda23c1 41
mbed_official 441:d2c15dda23c1 42 TimMasterHandle.Instance = TIM_MST;
mbed_official 441:d2c15dda23c1 43
mbed_official 441:d2c15dda23c1 44 HAL_InitTick(0); // The passed value is not used
mbed_official 441:d2c15dda23c1 45 }
mbed_official 441:d2c15dda23c1 46
mbed_official 441:d2c15dda23c1 47 uint32_t us_ticker_read()
mbed_official 441:d2c15dda23c1 48 {
mbed_official 441:d2c15dda23c1 49 if (!us_ticker_inited) us_ticker_init();
mbed_official 441:d2c15dda23c1 50 return TIM_MST->CNT;
mbed_official 441:d2c15dda23c1 51 }
mbed_official 441:d2c15dda23c1 52
mbed_official 441:d2c15dda23c1 53 void us_ticker_set_interrupt(timestamp_t timestamp)
mbed_official 441:d2c15dda23c1 54 {
mbed_official 441:d2c15dda23c1 55 // Set new output compare value
mbed_official 441:d2c15dda23c1 56 __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)timestamp);
mbed_official 441:d2c15dda23c1 57 // Enable IT
mbed_official 441:d2c15dda23c1 58 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 441:d2c15dda23c1 59 }
mbed_official 441:d2c15dda23c1 60
mbed_official 441:d2c15dda23c1 61 void us_ticker_disable_interrupt(void)
mbed_official 441:d2c15dda23c1 62 {
mbed_official 441:d2c15dda23c1 63 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 441:d2c15dda23c1 64 }
mbed_official 441:d2c15dda23c1 65
mbed_official 441:d2c15dda23c1 66 void us_ticker_clear_interrupt(void)
mbed_official 441:d2c15dda23c1 67 {
mbed_official 441:d2c15dda23c1 68 __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 441:d2c15dda23c1 69 }