Renesas / mbed-src_GR-PEACH_rev_b

mbed library sources for GR-PEACH rev.B.

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/us_ticker.c@354:e67efb2aab0e, 2014-10-16 (annotated)

Committer:
mbed_official
Date:
Thu Oct 16 15:00:10 2014 +0100
Revision:
354:e67efb2aab0e
Parent:
304:89b9c3a9a045 
Synchronized with git revision 36a8882a54cbf25645fa6e11af937c8b8048e184



Full URL: https://github.com/mbedmicro/mbed/commit/36a8882a54cbf25645fa6e11af937c8b8048e184/



Targets: NUCLEO_L152RE - Migration to STM32Cube driver (CMSIS and HAL)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /* mbed Microcontroller Library
mbed_official 76:aeb1df146756 2 * Copyright (c) 2014, STMicroelectronics
mbed_official 76:aeb1df146756 3 * All rights reserved.
mbed_official 76:aeb1df146756 4 *
mbed_official 76:aeb1df146756 5 * Redistribution and use in source and binary forms, with or without
mbed_official 76:aeb1df146756 6 * modification, are permitted provided that the following conditions are met:
mbed_official 76:aeb1df146756 7 *
mbed_official 76:aeb1df146756 8 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 76:aeb1df146756 9 * this list of conditions and the following disclaimer.
mbed_official 76:aeb1df146756 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 76:aeb1df146756 11 * this list of conditions and the following disclaimer in the documentation
mbed_official 76:aeb1df146756 12 * and/or other materials provided with the distribution.
mbed_official 76:aeb1df146756 13 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 76:aeb1df146756 14 * may be used to endorse or promote products derived from this software
mbed_official 76:aeb1df146756 15 * without specific prior written permission.
mbed_official 76:aeb1df146756 16 *
mbed_official 76:aeb1df146756 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 76:aeb1df146756 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 76:aeb1df146756 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 76:aeb1df146756 20 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 76:aeb1df146756 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 76:aeb1df146756 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 76:aeb1df146756 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 76:aeb1df146756 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 76:aeb1df146756 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 76:aeb1df146756 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 27 */
mbed_official 76:aeb1df146756 28 #include <stddef.h>
mbed_official 76:aeb1df146756 29 #include "us_ticker_api.h"
mbed_official 76:aeb1df146756 30 #include "PeripheralNames.h"
mbed_official 76:aeb1df146756 31
mbed_official 354:e67efb2aab0e 32 #define TIM_MST TIM5
mbed_official 84:f54042cbc282 33
mbed_official 354:e67efb2aab0e 34 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 100:0412b5443284 35 static int us_ticker_inited = 0;
mbed_official 76:aeb1df146756 36
mbed_official 354:e67efb2aab0e 37 void us_ticker_init(void)
mbed_official 354:e67efb2aab0e 38 {
mbed_official 76:aeb1df146756 39 if (us_ticker_inited) return;
mbed_official 76:aeb1df146756 40 us_ticker_inited = 1;
mbed_official 174:8bb9f3a33240 41
mbed_official 354:e67efb2aab0e 42 TimMasterHandle.Instance = TIM_MST;
mbed_official 174:8bb9f3a33240 43
mbed_official 354:e67efb2aab0e 44 HAL_InitTick(0); // The passed value is not used
mbed_official 76:aeb1df146756 45 }
mbed_official 76:aeb1df146756 46
mbed_official 354:e67efb2aab0e 47 uint32_t us_ticker_read()
mbed_official 354:e67efb2aab0e 48 {
mbed_official 76:aeb1df146756 49 if (!us_ticker_inited) us_ticker_init();
mbed_official 100:0412b5443284 50 return TIM_MST->CNT;
mbed_official 76:aeb1df146756 51 }
mbed_official 76:aeb1df146756 52
mbed_official 354:e67efb2aab0e 53 void us_ticker_set_interrupt(timestamp_t timestamp)
mbed_official 354:e67efb2aab0e 54 {
mbed_official 100:0412b5443284 55 // Set new output compare value
mbed_official 354:e67efb2aab0e 56 __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)timestamp);
mbed_official 100:0412b5443284 57 // Enable IT
mbed_official 354:e67efb2aab0e 58 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 76:aeb1df146756 59 }
mbed_official 76:aeb1df146756 60
mbed_official 354:e67efb2aab0e 61 void us_ticker_disable_interrupt(void)
mbed_official 354:e67efb2aab0e 62 {
mbed_official 354:e67efb2aab0e 63 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 76:aeb1df146756 64 }
mbed_official 76:aeb1df146756 65
mbed_official 354:e67efb2aab0e 66 void us_ticker_clear_interrupt(void)
mbed_official 354:e67efb2aab0e 67 {
mbed_official 354:e67efb2aab0e 68 __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 76:aeb1df146756 69 }