shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F411RE/us_ticker.c@235:685d5f11838f, 2014-06-23 (annotated)

Committer:
mbed_official
Date:
Mon Jun 23 14:00:09 2014 +0100
Revision:
235:685d5f11838f
Child:
304:89b9c3a9a045
Synchronized with git revision 9728c76667962b289ee9c4c687ef9f115db48cd3



Full URL: https://github.com/mbedmicro/mbed/commit/9728c76667962b289ee9c4c687ef9f115db48cd3/



[NUCLEO_F411RE] Add all target files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 235:685d5f11838f 1 /* mbed Microcontroller Library
mbed_official 235:685d5f11838f 2 * Copyright (c) 2014, STMicroelectronics
mbed_official 235:685d5f11838f 3 * All rights reserved.
mbed_official 235:685d5f11838f 4 *
mbed_official 235:685d5f11838f 5 * Redistribution and use in source and binary forms, with or without
mbed_official 235:685d5f11838f 6 * modification, are permitted provided that the following conditions are met:
mbed_official 235:685d5f11838f 7 *
mbed_official 235:685d5f11838f 8 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 235:685d5f11838f 9 * this list of conditions and the following disclaimer.
mbed_official 235:685d5f11838f 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 235:685d5f11838f 11 * this list of conditions and the following disclaimer in the documentation
mbed_official 235:685d5f11838f 12 * and/or other materials provided with the distribution.
mbed_official 235:685d5f11838f 13 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 235:685d5f11838f 14 * may be used to endorse or promote products derived from this software
mbed_official 235:685d5f11838f 15 * without specific prior written permission.
mbed_official 235:685d5f11838f 16 *
mbed_official 235:685d5f11838f 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 235:685d5f11838f 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 235:685d5f11838f 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 235:685d5f11838f 20 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 235:685d5f11838f 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 235:685d5f11838f 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 235:685d5f11838f 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 235:685d5f11838f 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 235:685d5f11838f 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 235:685d5f11838f 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 235:685d5f11838f 27 */
mbed_official 235:685d5f11838f 28 #include <stddef.h>
mbed_official 235:685d5f11838f 29 #include "us_ticker_api.h"
mbed_official 235:685d5f11838f 30 #include "PeripheralNames.h"
mbed_official 235:685d5f11838f 31
mbed_official 235:685d5f11838f 32 #define TIM_MST TIM5
mbed_official 235:685d5f11838f 33
mbed_official 235:685d5f11838f 34 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 235:685d5f11838f 35 static int us_ticker_inited = 0;
mbed_official 235:685d5f11838f 36
mbed_official 235:685d5f11838f 37 void us_ticker_init(void)
mbed_official 235:685d5f11838f 38 {
mbed_official 235:685d5f11838f 39 if (us_ticker_inited) return;
mbed_official 235:685d5f11838f 40 us_ticker_inited = 1;
mbed_official 235:685d5f11838f 41
mbed_official 235:685d5f11838f 42 TimMasterHandle.Instance = TIM_MST;
mbed_official 235:685d5f11838f 43
mbed_official 235:685d5f11838f 44 HAL_InitTick(0); // The passed value is not used
mbed_official 235:685d5f11838f 45 }
mbed_official 235:685d5f11838f 46
mbed_official 235:685d5f11838f 47 uint32_t us_ticker_read()
mbed_official 235:685d5f11838f 48 {
mbed_official 235:685d5f11838f 49 if (!us_ticker_inited) us_ticker_init();
mbed_official 235:685d5f11838f 50 return TIM_MST->CNT;
mbed_official 235:685d5f11838f 51 }
mbed_official 235:685d5f11838f 52
mbed_official 235:685d5f11838f 53 void us_ticker_set_interrupt(unsigned int timestamp)
mbed_official 235:685d5f11838f 54 {
mbed_official 235:685d5f11838f 55 // Set new output compare value
mbed_official 235:685d5f11838f 56 __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, timestamp);
mbed_official 235:685d5f11838f 57 // Enable IT
mbed_official 235:685d5f11838f 58 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 235:685d5f11838f 59 }
mbed_official 235:685d5f11838f 60
mbed_official 235:685d5f11838f 61 void us_ticker_disable_interrupt(void)
mbed_official 235:685d5f11838f 62 {
mbed_official 235:685d5f11838f 63 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 235:685d5f11838f 64 }
mbed_official 235:685d5f11838f 65
mbed_official 235:685d5f11838f 66 void us_ticker_clear_interrupt(void)
mbed_official 235:685d5f11838f 67 {
mbed_official 235:685d5f11838f 68 __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 235:685d5f11838f 69 }