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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_STM32F407VG/us_ticker.c@440:8a0b45cd594f, 2014-12-16 (annotated)

Committer:
mbed_official
Date:
Tue Dec 16 08:15:08 2014 +0000
Revision:
440:8a0b45cd594f
Parent:
304:89b9c3a9a045 
Synchronized with git revision 67fbbf0b635d0c0d93fbe433306c537c2ad206aa



Full URL: https://github.com/mbedmicro/mbed/commit/67fbbf0b635d0c0d93fbe433306c537c2ad206aa/



Targets: nrf51 - updating app_timer.c from Norid'c SDKv7.1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 133:d4dda5c437f0 1 /* mbed Microcontroller Library
mbed_official 133:d4dda5c437f0 2 * Copyright (c) 2014, STMicroelectronics
mbed_official 133:d4dda5c437f0 3 * All rights reserved.
mbed_official 133:d4dda5c437f0 4 *
mbed_official 133:d4dda5c437f0 5 * Redistribution and use in source and binary forms, with or without
mbed_official 133:d4dda5c437f0 6 * modification, are permitted provided that the following conditions are met:
mbed_official 133:d4dda5c437f0 7 *
mbed_official 133:d4dda5c437f0 8 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 133:d4dda5c437f0 9 * this list of conditions and the following disclaimer.
mbed_official 133:d4dda5c437f0 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 133:d4dda5c437f0 11 * this list of conditions and the following disclaimer in the documentation
mbed_official 133:d4dda5c437f0 12 * and/or other materials provided with the distribution.
mbed_official 133:d4dda5c437f0 13 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 133:d4dda5c437f0 14 * may be used to endorse or promote products derived from this software
mbed_official 133:d4dda5c437f0 15 * without specific prior written permission.
mbed_official 133:d4dda5c437f0 16 *
mbed_official 133:d4dda5c437f0 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 133:d4dda5c437f0 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 133:d4dda5c437f0 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 133:d4dda5c437f0 20 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 133:d4dda5c437f0 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 133:d4dda5c437f0 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 133:d4dda5c437f0 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 133:d4dda5c437f0 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 133:d4dda5c437f0 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 133:d4dda5c437f0 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 133:d4dda5c437f0 27 */
mbed_official 133:d4dda5c437f0 28 #include <stddef.h>
mbed_official 133:d4dda5c437f0 29 #include "us_ticker_api.h"
mbed_official 133:d4dda5c437f0 30 #include "PeripheralNames.h"
mbed_official 133:d4dda5c437f0 31
mbed_official 133:d4dda5c437f0 32 #define TIM_MST TIM5
mbed_official 133:d4dda5c437f0 33
mbed_official 133:d4dda5c437f0 34 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 133:d4dda5c437f0 35 static int us_ticker_inited = 0;
mbed_official 133:d4dda5c437f0 36
mbed_official 133:d4dda5c437f0 37 void us_ticker_init(void) {
mbed_official 133:d4dda5c437f0 38 if (us_ticker_inited) return;
mbed_official 133:d4dda5c437f0 39 us_ticker_inited = 1;
mbed_official 133:d4dda5c437f0 40
mbed_official 133:d4dda5c437f0 41 TimMasterHandle.Instance = TIM_MST;
mbed_official 133:d4dda5c437f0 42
mbed_official 242:7074e42da0b2 43 HAL_InitTick(0); // The passed value is not used
mbed_official 133:d4dda5c437f0 44 }
mbed_official 133:d4dda5c437f0 45
mbed_official 133:d4dda5c437f0 46 uint32_t us_ticker_read() {
mbed_official 133:d4dda5c437f0 47 if (!us_ticker_inited) us_ticker_init();
mbed_official 133:d4dda5c437f0 48 return TIM_MST->CNT;
mbed_official 133:d4dda5c437f0 49 }
mbed_official 133:d4dda5c437f0 50
mbed_official 304:89b9c3a9a045 51 void us_ticker_set_interrupt(timestamp_t timestamp) {
mbed_official 133:d4dda5c437f0 52 // Set new output compare value
mbed_official 304:89b9c3a9a045 53 __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)timestamp);
mbed_official 133:d4dda5c437f0 54 // Enable IT
mbed_official 133:d4dda5c437f0 55 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 133:d4dda5c437f0 56 }
mbed_official 133:d4dda5c437f0 57
mbed_official 133:d4dda5c437f0 58 void us_ticker_disable_interrupt(void) {
mbed_official 133:d4dda5c437f0 59 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 133:d4dda5c437f0 60 }
mbed_official 133:d4dda5c437f0 61
mbed_official 133:d4dda5c437f0 62 void us_ticker_clear_interrupt(void) {
mbed_official 133:d4dda5c437f0 63 __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 133:d4dda5c437f0 64 }