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Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_STM/TARGET_STM32F0/us_ticker.c@583:967d0d8b7aed, 2015-07-06 (annotated)

Committer:
mbed_official
Date:
Mon Jul 06 09:15:09 2015 +0100
Revision:
583:967d0d8b7aed
Parent:
469:fc4922e0c183
Child:
630:825f75ca301e
Synchronized with git revision 0a7df4e114501712e80882fb66c8a1e1ffca2dcb



Full URL: https://github.com/mbedmicro/mbed/commit/0a7df4e114501712e80882fb66c8a1e1ffca2dcb/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 469:fc4922e0c183 1 /* mbed Microcontroller Library
mbed_official 469:fc4922e0c183 2 * Copyright (c) 2014, STMicroelectronics
mbed_official 469:fc4922e0c183 3 * All rights reserved.
mbed_official 469:fc4922e0c183 4 *
mbed_official 469:fc4922e0c183 5 * Redistribution and use in source and binary forms, with or without
mbed_official 469:fc4922e0c183 6 * modification, are permitted provided that the following conditions are met:
mbed_official 469:fc4922e0c183 7 *
mbed_official 469:fc4922e0c183 8 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 469:fc4922e0c183 9 * this list of conditions and the following disclaimer.
mbed_official 469:fc4922e0c183 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 469:fc4922e0c183 11 * this list of conditions and the following disclaimer in the documentation
mbed_official 469:fc4922e0c183 12 * and/or other materials provided with the distribution.
mbed_official 469:fc4922e0c183 13 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 469:fc4922e0c183 14 * may be used to endorse or promote products derived from this software
mbed_official 469:fc4922e0c183 15 * without specific prior written permission.
mbed_official 469:fc4922e0c183 16 *
mbed_official 469:fc4922e0c183 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 469:fc4922e0c183 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 469:fc4922e0c183 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 469:fc4922e0c183 20 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 469:fc4922e0c183 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 469:fc4922e0c183 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 469:fc4922e0c183 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 469:fc4922e0c183 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 469:fc4922e0c183 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 469:fc4922e0c183 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 469:fc4922e0c183 27 */
mbed_official 469:fc4922e0c183 28 #include <stddef.h>
mbed_official 469:fc4922e0c183 29 #include "us_ticker_api.h"
mbed_official 469:fc4922e0c183 30 #include "PeripheralNames.h"
mbed_official 469:fc4922e0c183 31
mbed_official 583:967d0d8b7aed 32
mbed_official 583:967d0d8b7aed 33 #if defined(TARGET_STM32F030R8) || defined(TARGET_STM32F070RB)
mbed_official 469:fc4922e0c183 34
mbed_official 469:fc4922e0c183 35 // Timer selection
mbed_official 469:fc4922e0c183 36 #define TIM_MST TIM1
mbed_official 469:fc4922e0c183 37
mbed_official 469:fc4922e0c183 38 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 469:fc4922e0c183 39 static int us_ticker_inited = 0;
mbed_official 469:fc4922e0c183 40
mbed_official 469:fc4922e0c183 41 volatile uint32_t SlaveCounter = 0;
mbed_official 469:fc4922e0c183 42 volatile uint32_t oc_int_part = 0;
mbed_official 469:fc4922e0c183 43 volatile uint16_t oc_rem_part = 0;
mbed_official 469:fc4922e0c183 44
mbed_official 469:fc4922e0c183 45 void set_compare(uint16_t count)
mbed_official 469:fc4922e0c183 46 {
mbed_official 469:fc4922e0c183 47 TimMasterHandle.Instance = TIM_MST;
mbed_official 469:fc4922e0c183 48 // Set new output compare value
mbed_official 469:fc4922e0c183 49 __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, count);
mbed_official 469:fc4922e0c183 50 // Enable IT
mbed_official 469:fc4922e0c183 51 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 469:fc4922e0c183 52 }
mbed_official 469:fc4922e0c183 53
mbed_official 469:fc4922e0c183 54 void us_ticker_init(void)
mbed_official 469:fc4922e0c183 55 {
mbed_official 469:fc4922e0c183 56 if (us_ticker_inited) return;
mbed_official 469:fc4922e0c183 57 us_ticker_inited = 1;
mbed_official 469:fc4922e0c183 58
mbed_official 469:fc4922e0c183 59 HAL_InitTick(0); // The passed value is not used
mbed_official 469:fc4922e0c183 60 }
mbed_official 469:fc4922e0c183 61
mbed_official 469:fc4922e0c183 62 uint32_t us_ticker_read()
mbed_official 469:fc4922e0c183 63 {
mbed_official 469:fc4922e0c183 64 uint32_t counter, counter2;
mbed_official 469:fc4922e0c183 65 if (!us_ticker_inited) us_ticker_init();
mbed_official 469:fc4922e0c183 66 // A situation might appear when Master overflows right after Slave is read and before the
mbed_official 469:fc4922e0c183 67 // new (overflowed) value of Master is read. Which would make the code below consider the
mbed_official 469:fc4922e0c183 68 // previous (incorrect) value of Slave and the new value of Master, which would return a
mbed_official 469:fc4922e0c183 69 // value in the past. Avoid this by computing consecutive values of the timer until they
mbed_official 469:fc4922e0c183 70 // are properly ordered.
mbed_official 469:fc4922e0c183 71 counter = (uint32_t)(SlaveCounter << 16);
mbed_official 469:fc4922e0c183 72 counter += TIM_MST->CNT;
mbed_official 469:fc4922e0c183 73 while (1) {
mbed_official 469:fc4922e0c183 74 counter2 = (uint32_t)(SlaveCounter << 16);
mbed_official 469:fc4922e0c183 75 counter2 += TIM_MST->CNT;
mbed_official 469:fc4922e0c183 76 if (counter2 > counter) {
mbed_official 469:fc4922e0c183 77 break;
mbed_official 469:fc4922e0c183 78 }
mbed_official 469:fc4922e0c183 79 counter = counter2;
mbed_official 469:fc4922e0c183 80 }
mbed_official 469:fc4922e0c183 81 return counter2;
mbed_official 469:fc4922e0c183 82 }
mbed_official 469:fc4922e0c183 83
mbed_official 469:fc4922e0c183 84 void us_ticker_set_interrupt(timestamp_t timestamp)
mbed_official 469:fc4922e0c183 85 {
mbed_official 469:fc4922e0c183 86 int delta = (int)((uint32_t)timestamp - us_ticker_read());
mbed_official 469:fc4922e0c183 87 uint16_t cval = TIM_MST->CNT;
mbed_official 469:fc4922e0c183 88
mbed_official 469:fc4922e0c183 89 if (delta <= 0) { // This event was in the past
mbed_official 469:fc4922e0c183 90 us_ticker_irq_handler();
mbed_official 469:fc4922e0c183 91 } else {
mbed_official 469:fc4922e0c183 92 oc_int_part = (uint32_t)(delta >> 16);
mbed_official 469:fc4922e0c183 93 oc_rem_part = (uint16_t)(delta & 0xFFFF);
mbed_official 469:fc4922e0c183 94 if (oc_rem_part <= (0xFFFF - cval)) {
mbed_official 469:fc4922e0c183 95 set_compare(cval + oc_rem_part);
mbed_official 469:fc4922e0c183 96 oc_rem_part = 0;
mbed_official 469:fc4922e0c183 97 } else {
mbed_official 469:fc4922e0c183 98 set_compare(0xFFFF);
mbed_official 469:fc4922e0c183 99 oc_rem_part = oc_rem_part - (0xFFFF - cval);
mbed_official 469:fc4922e0c183 100 }
mbed_official 469:fc4922e0c183 101 }
mbed_official 469:fc4922e0c183 102 }
mbed_official 469:fc4922e0c183 103
mbed_official 469:fc4922e0c183 104 void us_ticker_disable_interrupt(void)
mbed_official 469:fc4922e0c183 105 {
mbed_official 469:fc4922e0c183 106 TimMasterHandle.Instance = TIM_MST;
mbed_official 469:fc4922e0c183 107 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 469:fc4922e0c183 108 }
mbed_official 469:fc4922e0c183 109
mbed_official 469:fc4922e0c183 110 void us_ticker_clear_interrupt(void)
mbed_official 469:fc4922e0c183 111 {
mbed_official 469:fc4922e0c183 112 TimMasterHandle.Instance = TIM_MST;
mbed_official 469:fc4922e0c183 113 if (__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_CC1) == SET) {
mbed_official 469:fc4922e0c183 114 __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_CC1);
mbed_official 469:fc4922e0c183 115 }
mbed_official 469:fc4922e0c183 116 }
mbed_official 469:fc4922e0c183 117
mbed_official 583:967d0d8b7aed 118 #elif defined (TARGET_STM32F051R8)
mbed_official 469:fc4922e0c183 119
mbed_official 469:fc4922e0c183 120 // Timer selection:
mbed_official 469:fc4922e0c183 121 #define TIM_MST TIM1
mbed_official 469:fc4922e0c183 122 #define TIM_MST_UP_IRQ TIM1_BRK_UP_TRG_COM_IRQn
mbed_official 469:fc4922e0c183 123 #define TIM_MST_OC_IRQ TIM1_CC_IRQn
mbed_official 469:fc4922e0c183 124 #define TIM_MST_RCC __TIM1_CLK_ENABLE()
mbed_official 469:fc4922e0c183 125
mbed_official 469:fc4922e0c183 126 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 469:fc4922e0c183 127
mbed_official 469:fc4922e0c183 128
mbed_official 469:fc4922e0c183 129 static int us_ticker_inited = 0;
mbed_official 469:fc4922e0c183 130 static volatile uint32_t SlaveCounter = 0;
mbed_official 469:fc4922e0c183 131 static volatile uint32_t oc_int_part = 0;
mbed_official 469:fc4922e0c183 132 static volatile uint16_t oc_rem_part = 0;
mbed_official 469:fc4922e0c183 133
mbed_official 469:fc4922e0c183 134 void set_compare(uint16_t count)
mbed_official 469:fc4922e0c183 135 {
mbed_official 469:fc4922e0c183 136 TimMasterHandle.Instance = TIM_MST;
mbed_official 469:fc4922e0c183 137
mbed_official 469:fc4922e0c183 138 // Set new output compare value
mbed_official 469:fc4922e0c183 139 __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, count);
mbed_official 469:fc4922e0c183 140 // Enable IT
mbed_official 469:fc4922e0c183 141 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 469:fc4922e0c183 142 }
mbed_official 469:fc4922e0c183 143
mbed_official 469:fc4922e0c183 144 // Used to increment the slave counter
mbed_official 469:fc4922e0c183 145 static void tim_update_irq_handler(void)
mbed_official 469:fc4922e0c183 146 {
mbed_official 469:fc4922e0c183 147 TimMasterHandle.Instance = TIM_MST;
mbed_official 469:fc4922e0c183 148
mbed_official 469:fc4922e0c183 149 // Clear Update interrupt flag
mbed_official 469:fc4922e0c183 150 if (__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_UPDATE) == SET) {
mbed_official 469:fc4922e0c183 151 __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_UPDATE);
mbed_official 469:fc4922e0c183 152 SlaveCounter++;
mbed_official 469:fc4922e0c183 153 }
mbed_official 469:fc4922e0c183 154 }
mbed_official 469:fc4922e0c183 155
mbed_official 469:fc4922e0c183 156 // Used by interrupt system
mbed_official 469:fc4922e0c183 157 static void tim_oc_irq_handler(void)
mbed_official 469:fc4922e0c183 158 {
mbed_official 469:fc4922e0c183 159 uint16_t cval = TIM_MST->CNT;
mbed_official 469:fc4922e0c183 160 TimMasterHandle.Instance = TIM_MST;
mbed_official 469:fc4922e0c183 161
mbed_official 469:fc4922e0c183 162 // Clear CC1 interrupt flag
mbed_official 469:fc4922e0c183 163 if (__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_CC1) == SET) {
mbed_official 469:fc4922e0c183 164 __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_CC1);
mbed_official 469:fc4922e0c183 165 }
mbed_official 469:fc4922e0c183 166 if (oc_rem_part > 0) {
mbed_official 469:fc4922e0c183 167 set_compare(oc_rem_part); // Finish the remaining time left
mbed_official 469:fc4922e0c183 168 oc_rem_part = 0;
mbed_official 469:fc4922e0c183 169 } else {
mbed_official 469:fc4922e0c183 170 if (oc_int_part > 0) {
mbed_official 469:fc4922e0c183 171 set_compare(0xFFFF);
mbed_official 469:fc4922e0c183 172 oc_rem_part = cval; // To finish the counter loop the next time
mbed_official 469:fc4922e0c183 173 oc_int_part--;
mbed_official 469:fc4922e0c183 174 } else {
mbed_official 469:fc4922e0c183 175 us_ticker_irq_handler();
mbed_official 469:fc4922e0c183 176 }
mbed_official 469:fc4922e0c183 177 }
mbed_official 469:fc4922e0c183 178
mbed_official 469:fc4922e0c183 179 }
mbed_official 469:fc4922e0c183 180
mbed_official 469:fc4922e0c183 181 void us_ticker_init(void)
mbed_official 469:fc4922e0c183 182 {
mbed_official 469:fc4922e0c183 183
mbed_official 469:fc4922e0c183 184 if (us_ticker_inited) return;
mbed_official 469:fc4922e0c183 185 us_ticker_inited = 1;
mbed_official 469:fc4922e0c183 186
mbed_official 469:fc4922e0c183 187 // Enable timer clock
mbed_official 469:fc4922e0c183 188 TIM_MST_RCC;
mbed_official 469:fc4922e0c183 189
mbed_official 469:fc4922e0c183 190 // Configure time base
mbed_official 469:fc4922e0c183 191 TimMasterHandle.Instance = TIM_MST;
mbed_official 469:fc4922e0c183 192 TimMasterHandle.Init.Period = 0xFFFF;
mbed_official 469:fc4922e0c183 193 TimMasterHandle.Init.Prescaler = (uint32_t)(SystemCoreClock / 1000000) - 1; // 1 �s tick
mbed_official 469:fc4922e0c183 194 TimMasterHandle.Init.ClockDivision = 0;
mbed_official 469:fc4922e0c183 195 TimMasterHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
mbed_official 469:fc4922e0c183 196 HAL_TIM_Base_Init(&TimMasterHandle);
mbed_official 469:fc4922e0c183 197
mbed_official 469:fc4922e0c183 198 // Configure interrupts
mbed_official 469:fc4922e0c183 199 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_UPDATE);
mbed_official 469:fc4922e0c183 200
mbed_official 469:fc4922e0c183 201 // Update interrupt used for 32-bit counter
mbed_official 469:fc4922e0c183 202 NVIC_SetVector(TIM_MST_UP_IRQ, (uint32_t)tim_update_irq_handler);
mbed_official 469:fc4922e0c183 203 NVIC_EnableIRQ(TIM_MST_UP_IRQ);
mbed_official 469:fc4922e0c183 204
mbed_official 469:fc4922e0c183 205 // Output compare interrupt used for timeout feature
mbed_official 469:fc4922e0c183 206 NVIC_SetVector(TIM_MST_OC_IRQ, (uint32_t)tim_oc_irq_handler);
mbed_official 469:fc4922e0c183 207 NVIC_EnableIRQ(TIM_MST_OC_IRQ);
mbed_official 469:fc4922e0c183 208
mbed_official 469:fc4922e0c183 209 // Enable timer
mbed_official 469:fc4922e0c183 210 HAL_TIM_Base_Start(&TimMasterHandle);
mbed_official 469:fc4922e0c183 211 }
mbed_official 469:fc4922e0c183 212
mbed_official 469:fc4922e0c183 213 uint32_t us_ticker_read()
mbed_official 469:fc4922e0c183 214 {
mbed_official 469:fc4922e0c183 215 uint32_t counter, counter2;
mbed_official 469:fc4922e0c183 216 if (!us_ticker_inited) us_ticker_init();
mbed_official 469:fc4922e0c183 217 // A situation might appear when Master overflows right after Slave is read and before the
mbed_official 469:fc4922e0c183 218 // new (overflowed) value of Master is read. Which would make the code below consider the
mbed_official 469:fc4922e0c183 219 // previous (incorrect) value of Slave and the new value of Master, which would return a
mbed_official 469:fc4922e0c183 220 // value in the past. Avoid this by computing consecutive values of the timer until they
mbed_official 469:fc4922e0c183 221 // are properly ordered.
mbed_official 469:fc4922e0c183 222 counter = (uint32_t)(SlaveCounter << 16);
mbed_official 469:fc4922e0c183 223 counter += TIM_MST->CNT;
mbed_official 469:fc4922e0c183 224 while (1) {
mbed_official 469:fc4922e0c183 225 counter2 = (uint32_t)(SlaveCounter << 16);
mbed_official 469:fc4922e0c183 226 counter2 += TIM_MST->CNT;
mbed_official 469:fc4922e0c183 227 if (counter2 > counter) {
mbed_official 469:fc4922e0c183 228 break;
mbed_official 469:fc4922e0c183 229 }
mbed_official 469:fc4922e0c183 230 counter = counter2;
mbed_official 469:fc4922e0c183 231 }
mbed_official 469:fc4922e0c183 232 return counter2;
mbed_official 469:fc4922e0c183 233 }
mbed_official 469:fc4922e0c183 234
mbed_official 469:fc4922e0c183 235 void us_ticker_set_interrupt(timestamp_t timestamp)
mbed_official 469:fc4922e0c183 236 {
mbed_official 469:fc4922e0c183 237 int delta = (int)((uint32_t)timestamp - us_ticker_read());
mbed_official 469:fc4922e0c183 238 uint16_t cval = TIM_MST->CNT;
mbed_official 469:fc4922e0c183 239
mbed_official 469:fc4922e0c183 240 if (delta <= 0) { // This event was in the past
mbed_official 469:fc4922e0c183 241 us_ticker_irq_handler();
mbed_official 469:fc4922e0c183 242 } else {
mbed_official 469:fc4922e0c183 243 oc_int_part = (uint32_t)(delta >> 16);
mbed_official 469:fc4922e0c183 244 oc_rem_part = (uint16_t)(delta & 0xFFFF);
mbed_official 469:fc4922e0c183 245 if (oc_rem_part <= (0xFFFF - cval)) {
mbed_official 469:fc4922e0c183 246 set_compare(cval + oc_rem_part);
mbed_official 469:fc4922e0c183 247 oc_rem_part = 0;
mbed_official 469:fc4922e0c183 248 } else {
mbed_official 469:fc4922e0c183 249 set_compare(0xFFFF);
mbed_official 469:fc4922e0c183 250 oc_rem_part = oc_rem_part - (0xFFFF - cval);
mbed_official 469:fc4922e0c183 251 }
mbed_official 469:fc4922e0c183 252 }
mbed_official 469:fc4922e0c183 253 }
mbed_official 469:fc4922e0c183 254
mbed_official 469:fc4922e0c183 255 void us_ticker_disable_interrupt(void)
mbed_official 469:fc4922e0c183 256 {
mbed_official 469:fc4922e0c183 257 TimMasterHandle.Instance = TIM_MST;
mbed_official 469:fc4922e0c183 258 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 469:fc4922e0c183 259 }
mbed_official 469:fc4922e0c183 260
mbed_official 469:fc4922e0c183 261 void us_ticker_clear_interrupt(void)
mbed_official 469:fc4922e0c183 262 {
mbed_official 469:fc4922e0c183 263 TimMasterHandle.Instance = TIM_MST;
mbed_official 469:fc4922e0c183 264 if (__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_CC1) == SET) {
mbed_official 469:fc4922e0c183 265 __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_CC1);
mbed_official 469:fc4922e0c183 266 }
mbed_official 469:fc4922e0c183 267 }
mbed_official 469:fc4922e0c183 268
mbed_official 469:fc4922e0c183 269 #else
mbed_official 469:fc4922e0c183 270
mbed_official 469:fc4922e0c183 271 // 32-bit timer selection
mbed_official 469:fc4922e0c183 272 #define TIM_MST TIM2
mbed_official 469:fc4922e0c183 273
mbed_official 469:fc4922e0c183 274 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 469:fc4922e0c183 275 static int us_ticker_inited = 0;
mbed_official 469:fc4922e0c183 276
mbed_official 469:fc4922e0c183 277 void us_ticker_init(void)
mbed_official 469:fc4922e0c183 278 {
mbed_official 469:fc4922e0c183 279 if (us_ticker_inited) return;
mbed_official 469:fc4922e0c183 280 us_ticker_inited = 1;
mbed_official 469:fc4922e0c183 281
mbed_official 469:fc4922e0c183 282 TimMasterHandle.Instance = TIM_MST;
mbed_official 469:fc4922e0c183 283
mbed_official 469:fc4922e0c183 284 HAL_InitTick(0); // The passed value is not used
mbed_official 469:fc4922e0c183 285 }
mbed_official 469:fc4922e0c183 286
mbed_official 469:fc4922e0c183 287 uint32_t us_ticker_read()
mbed_official 469:fc4922e0c183 288 {
mbed_official 469:fc4922e0c183 289 if (!us_ticker_inited) us_ticker_init();
mbed_official 469:fc4922e0c183 290 return TIM_MST->CNT;
mbed_official 469:fc4922e0c183 291 }
mbed_official 469:fc4922e0c183 292
mbed_official 469:fc4922e0c183 293 void us_ticker_set_interrupt(timestamp_t timestamp)
mbed_official 469:fc4922e0c183 294 {
mbed_official 469:fc4922e0c183 295 // Set new output compare value
mbed_official 469:fc4922e0c183 296 __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, (uint32_t)timestamp);
mbed_official 469:fc4922e0c183 297 // Enable IT
mbed_official 469:fc4922e0c183 298 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 469:fc4922e0c183 299 }
mbed_official 469:fc4922e0c183 300
mbed_official 469:fc4922e0c183 301 void us_ticker_disable_interrupt(void)
mbed_official 469:fc4922e0c183 302 {
mbed_official 469:fc4922e0c183 303 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 469:fc4922e0c183 304 }
mbed_official 469:fc4922e0c183 305
mbed_official 469:fc4922e0c183 306 void us_ticker_clear_interrupt(void)
mbed_official 469:fc4922e0c183 307 {
mbed_official 469:fc4922e0c183 308 __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC1);
mbed_official 469:fc4922e0c183 309 }
mbed_official 469:fc4922e0c183 310 #endif