mbed library sources
Fork of mbed-src by
targets/hal/TARGET_STM/TARGET_STM32F411RE/us_ticker.c@429:cc5da43e7bf6, 2014-12-09 (annotated)
- Committer:
- mbed_official
- Date:
- Tue Dec 09 14:15:07 2014 +0000
- Revision:
- 429:cc5da43e7bf6
- Parent:
- targets/hal/TARGET_STM/TARGET_NUCLEO_F411RE/us_ticker.c@304:89b9c3a9a045
Synchronized with git revision 75673df767b901eda5c6ea6c737b58deb390c955
Full URL: https://github.com/mbedmicro/mbed/commit/75673df767b901eda5c6ea6c737b58deb390c955/
Add support for mDot with STM32F411RE processor
Who changed what in which revision?
User | Revision | Line number | New 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 | 304:89b9c3a9a045 | 53 | void us_ticker_set_interrupt(timestamp_t timestamp) |
mbed_official | 235:685d5f11838f | 54 | { |
mbed_official | 235:685d5f11838f | 55 | // Set new output compare value |
mbed_official | 304:89b9c3a9a045 | 56 | __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)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 | } |