Kenji Arai / mbed-os_TYBLE16

mbed-os5 only for TYBLE16

Dependents:   TYBLE16_simple_data_logger TYBLE16_MP3_Air

hal/us_ticker_api.h@1:9db0e321a9f4, 2019-12-31 (annotated)

Committer:
kenjiArai
Date:
Tue Dec 31 06:02:27 2019 +0000
Revision:
1:9db0e321a9f4
Parent:
0:5b88d5760320 
updated based on mbed-os5.15.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 0:5b88d5760320 1
kenjiArai 0:5b88d5760320 2 /** \addtogroup hal */
kenjiArai 0:5b88d5760320 3 /** @{*/
kenjiArai 0:5b88d5760320 4 /* mbed Microcontroller Library
kenjiArai 0:5b88d5760320 5 * Copyright (c) 2006-2015 ARM Limited
kenjiArai 0:5b88d5760320 6 * SPDX-License-Identifier: Apache-2.0
kenjiArai 0:5b88d5760320 7 *
kenjiArai 0:5b88d5760320 8 * Licensed under the Apache License, Version 2.0 (the "License");
kenjiArai 0:5b88d5760320 9 * you may not use this file except in compliance with the License.
kenjiArai 0:5b88d5760320 10 * You may obtain a copy of the License at
kenjiArai 0:5b88d5760320 11 *
kenjiArai 0:5b88d5760320 12 * http://www.apache.org/licenses/LICENSE-2.0
kenjiArai 0:5b88d5760320 13 *
kenjiArai 0:5b88d5760320 14 * Unless required by applicable law or agreed to in writing, software
kenjiArai 0:5b88d5760320 15 * distributed under the License is distributed on an "AS IS" BASIS,
kenjiArai 0:5b88d5760320 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kenjiArai 0:5b88d5760320 17 * See the License for the specific language governing permissions and
kenjiArai 0:5b88d5760320 18 * limitations under the License.
kenjiArai 0:5b88d5760320 19 */
kenjiArai 0:5b88d5760320 20 #ifndef MBED_US_TICKER_API_H
kenjiArai 0:5b88d5760320 21 #define MBED_US_TICKER_API_H
kenjiArai 0:5b88d5760320 22
kenjiArai 0:5b88d5760320 23 #include <stdint.h>
kenjiArai 0:5b88d5760320 24 #include "hal/ticker_api.h"
kenjiArai 0:5b88d5760320 25
kenjiArai 0:5b88d5760320 26 #ifdef __cplusplus
kenjiArai 0:5b88d5760320 27 extern "C" {
kenjiArai 0:5b88d5760320 28 #endif
kenjiArai 0:5b88d5760320 29
kenjiArai 0:5b88d5760320 30 /**
kenjiArai 0:5b88d5760320 31 * \defgroup hal_us_ticker Microsecond Ticker
kenjiArai 0:5b88d5760320 32 * Low level interface to the microsecond ticker of a target
kenjiArai 0:5b88d5760320 33 *
kenjiArai 0:5b88d5760320 34 * # Defined behavior
kenjiArai 1:9db0e321a9f4 35 * * Has a reported frequency between 250KHz and 8MHz for counters which are less than 32 bits wide - Verified by test ::us_ticker_info_test
kenjiArai 1:9db0e321a9f4 36 * * Has a reported frequency up to 100MHz for counters which are 32 bits wide - Verified by test ::us_ticker_info_test
kenjiArai 0:5b88d5760320 37 * * Has a counter that is at least 16 bits wide - Verified by test ::us_ticker_info_test
kenjiArai 0:5b88d5760320 38 * * All behavior defined by the @ref hal_ticker_shared "ticker specification"
kenjiArai 0:5b88d5760320 39 *
kenjiArai 0:5b88d5760320 40 * # Undefined behavior
kenjiArai 0:5b88d5760320 41 * * See the @ref hal_ticker_shared "ticker specification"
kenjiArai 0:5b88d5760320 42 *
kenjiArai 0:5b88d5760320 43 * @see hal_us_ticker_tests
kenjiArai 0:5b88d5760320 44 *
kenjiArai 0:5b88d5760320 45 * # Compile-time optimization macros
kenjiArai 0:5b88d5760320 46 *
kenjiArai 0:5b88d5760320 47 * To permit compile-time optimization, particularly of wait_us, the following macros should
kenjiArai 0:5b88d5760320 48 * be defined by a target's device.h:
kenjiArai 0:5b88d5760320 49 *
kenjiArai 0:5b88d5760320 50 * US_TICKER_PERIOD_NUM, US_TICKER_PERIOD_DEN: These denote the ratio (numerator, denominator)
kenjiArai 0:5b88d5760320 51 * of the ticker period to a microsecond. For example, an 8MHz ticker would have NUM = 1, DEN = 8;
kenjiArai 0:5b88d5760320 52 * a 1MHz ticker would have NUM = 1, DEN = 1; a 250kHz ticker would have NUM = 4, DEN = 1.
kenjiArai 0:5b88d5760320 53 * Both numerator and denominator must be 16 bits or less.
kenjiArai 0:5b88d5760320 54 *
kenjiArai 0:5b88d5760320 55 * US_TICKER_MASK: The value mask for the ticker - eg 0x07FFFFFF for a 27-bit ticker.
kenjiArai 0:5b88d5760320 56 *
kenjiArai 0:5b88d5760320 57 * If any are defined, all 3 must be defined, and the macros are checked for consistency with
kenjiArai 0:5b88d5760320 58 * us_ticker_get_info by test ::us_ticker_info_test.
kenjiArai 0:5b88d5760320 59
kenjiArai 0:5b88d5760320 60 * @{
kenjiArai 0:5b88d5760320 61 */
kenjiArai 0:5b88d5760320 62
kenjiArai 0:5b88d5760320 63 /**
kenjiArai 0:5b88d5760320 64 * \defgroup hal_us_ticker_tests Microsecond Ticker tests
kenjiArai 0:5b88d5760320 65 * Tests to validate the proper implementation of the microsecond ticker
kenjiArai 0:5b88d5760320 66 *
kenjiArai 0:5b88d5760320 67 * To run the microsecond ticker hal tests use the command:
kenjiArai 0:5b88d5760320 68 *
kenjiArai 0:5b88d5760320 69 * mbed test -t <toolchain> -m <target> -n tests-mbed_hal-common_ticker*,tests-mbed_hal-us_ticker*
kenjiArai 0:5b88d5760320 70 *
kenjiArai 0:5b88d5760320 71 * @see hal_ticker_tests
kenjiArai 0:5b88d5760320 72 *
kenjiArai 0:5b88d5760320 73 */
kenjiArai 0:5b88d5760320 74
kenjiArai 0:5b88d5760320 75 /**
kenjiArai 0:5b88d5760320 76 * \defgroup hal_ticker_shared Ticker Hal
kenjiArai 0:5b88d5760320 77 * Low level interface to the ticker of a target
kenjiArai 0:5b88d5760320 78 *
kenjiArai 0:5b88d5760320 79 * # Defined behavior
kenjiArai 0:5b88d5760320 80 * * The function ticker_init is safe to call repeatedly - Verified by test ::ticker_init_test
kenjiArai 0:5b88d5760320 81 * * The function ticker_init allows the ticker to keep counting and disables the ticker interrupt - Verified by test ::ticker_init_test
kenjiArai 0:5b88d5760320 82 * * Ticker frequency is non-zero and counter is at least 8 bits - Verified by ::ticker_info_test
kenjiArai 0:5b88d5760320 83 * * The ticker rolls over at (1 << bits) and continues counting starting from 0 - Verified by ::ticker_overflow_test
kenjiArai 0:5b88d5760320 84 * * The ticker counts at the specified frequency +- 10% - Verified by ::ticker_frequency_test
kenjiArai 0:5b88d5760320 85 * * The ticker increments by 1 each tick - Verified by ::ticker_increment_test
kenjiArai 0:5b88d5760320 86 * * The ticker interrupt fires only when the ticker times increments to or past the value set by ticker_set_interrupt.
kenjiArai 0:5b88d5760320 87 * Verified by ::ticker_interrupt_test and ::ticker_past_test
kenjiArai 0:5b88d5760320 88 * * It is safe to call ticker_set_interrupt repeatedly before the handler is called - Verified by ::ticker_repeat_reschedule_test
kenjiArai 0:5b88d5760320 89 * * The function ticker_fire_interrupt causes ticker_irq_handler to be called immediately from interrupt context -
kenjiArai 0:5b88d5760320 90 * Verified by ::ticker_fire_now_test
kenjiArai 0:5b88d5760320 91 * * The ticker operations ticker_read, ticker_clear_interrupt, ticker_set_interrupt and ticker_fire_interrupt
kenjiArai 0:5b88d5760320 92 * take less than 20us to complete - Verified by ::ticker_speed_test
kenjiArai 0:5b88d5760320 93 * * The ticker operations ticker_init and ticker_read are atomic.
kenjiArai 0:5b88d5760320 94 *
kenjiArai 0:5b88d5760320 95 * # Undefined behavior
kenjiArai 0:5b88d5760320 96 * * Calling any function other than ticker_init before the initialization of the ticker
kenjiArai 0:5b88d5760320 97 * * Whether ticker_irq_handler is called a second time if the time wraps and matches the value set by ticker_set_interrupt again
kenjiArai 0:5b88d5760320 98 * * Calling ticker_set_interrupt with a value that has more than the supported number of bits
kenjiArai 0:5b88d5760320 99 * * Calling any function other than us_ticker_init after calling us_ticker_free
kenjiArai 0:5b88d5760320 100 *
kenjiArai 0:5b88d5760320 101 * # Potential bugs
kenjiArai 0:5b88d5760320 102 * * Drift due to reschedule - Verified by ::ticker_repeat_reschedule_test
kenjiArai 0:5b88d5760320 103 * * Incorrect overflow handling of timers - Verified by ::ticker_overflow_test
kenjiArai 0:5b88d5760320 104 * * Interrupting at a time of 0 - Verified by ::ticker_overflow_test
kenjiArai 0:5b88d5760320 105 * * Interrupt triggered more than once - Verified by ::ticker_interrupt_test
kenjiArai 0:5b88d5760320 106 *
kenjiArai 0:5b88d5760320 107 * @ingroup hal_us_ticker
kenjiArai 0:5b88d5760320 108 * @ingroup hal_lp_ticker
kenjiArai 0:5b88d5760320 109 */
kenjiArai 0:5b88d5760320 110
kenjiArai 0:5b88d5760320 111 /**
kenjiArai 0:5b88d5760320 112 * \defgroup hal_ticker_tests Ticker Tests
kenjiArai 0:5b88d5760320 113 * Tests to validate the proper implementation of a ticker
kenjiArai 0:5b88d5760320 114 *
kenjiArai 0:5b88d5760320 115 * To run the ticker hal tests use the command:
kenjiArai 0:5b88d5760320 116 *
kenjiArai 0:5b88d5760320 117 * mbed test -t <toolchain> -m <target> -n tests-mbed_hal-common_ticker*
kenjiArai 0:5b88d5760320 118 *
kenjiArai 0:5b88d5760320 119 * @ingroup hal_us_ticker
kenjiArai 0:5b88d5760320 120 * @ingroup hal_lp_ticker
kenjiArai 0:5b88d5760320 121 */
kenjiArai 0:5b88d5760320 122
kenjiArai 0:5b88d5760320 123
kenjiArai 0:5b88d5760320 124 typedef void (*ticker_irq_handler_type)(const ticker_data_t *const);
kenjiArai 0:5b88d5760320 125
kenjiArai 0:5b88d5760320 126 /** Set ticker IRQ handler
kenjiArai 0:5b88d5760320 127 *
kenjiArai 0:5b88d5760320 128 * @param ticker_irq_handler IRQ handler to be connected
kenjiArai 0:5b88d5760320 129 *
kenjiArai 0:5b88d5760320 130 * @return previous ticker IRQ handler
kenjiArai 0:5b88d5760320 131 *
kenjiArai 0:5b88d5760320 132 * @note by default IRQ handler is set to ::ticker_irq_handler
kenjiArai 0:5b88d5760320 133 * @note this function is primarily for testing purposes and it's not required part of HAL implementation
kenjiArai 0:5b88d5760320 134 *
kenjiArai 0:5b88d5760320 135 */
kenjiArai 0:5b88d5760320 136 ticker_irq_handler_type set_us_ticker_irq_handler(ticker_irq_handler_type ticker_irq_handler);
kenjiArai 0:5b88d5760320 137
kenjiArai 0:5b88d5760320 138 /** Get ticker's data
kenjiArai 0:5b88d5760320 139 *
kenjiArai 0:5b88d5760320 140 * @return The microsecond ticker data
kenjiArai 0:5b88d5760320 141 */
kenjiArai 0:5b88d5760320 142 const ticker_data_t *get_us_ticker_data(void);
kenjiArai 0:5b88d5760320 143
kenjiArai 0:5b88d5760320 144
kenjiArai 0:5b88d5760320 145 /** The wrapper for ticker_irq_handler, to pass us ticker's data
kenjiArai 0:5b88d5760320 146 *
kenjiArai 0:5b88d5760320 147 */
kenjiArai 0:5b88d5760320 148 void us_ticker_irq_handler(void);
kenjiArai 0:5b88d5760320 149
kenjiArai 0:5b88d5760320 150 /* HAL us ticker */
kenjiArai 0:5b88d5760320 151
kenjiArai 0:5b88d5760320 152 /** Initialize the ticker
kenjiArai 0:5b88d5760320 153 *
kenjiArai 0:5b88d5760320 154 * Initialize or re-initialize the ticker. This resets all the
kenjiArai 0:5b88d5760320 155 * clocking and prescaler registers, along with disabling
kenjiArai 0:5b88d5760320 156 * the compare interrupt.
kenjiArai 0:5b88d5760320 157 *
kenjiArai 0:5b88d5760320 158 * @note Initialization properties tested by ::ticker_init_test
kenjiArai 0:5b88d5760320 159 *
kenjiArai 0:5b88d5760320 160 * Pseudo Code:
kenjiArai 0:5b88d5760320 161 * @code
kenjiArai 0:5b88d5760320 162 * void us_ticker_init()
kenjiArai 0:5b88d5760320 163 * {
kenjiArai 0:5b88d5760320 164 * // Enable clock gate so processor can read TIMER registers
kenjiArai 0:5b88d5760320 165 * POWER_CTRL |= POWER_CTRL_TIMER_Msk;
kenjiArai 0:5b88d5760320 166 *
kenjiArai 0:5b88d5760320 167 * // Disable the timer and ensure it is powered down
kenjiArai 0:5b88d5760320 168 * TIMER_CTRL &= ~(TIMER_CTRL_ENABLE_Msk | TIMER_CTRL_COMPARE_ENABLE_Msk);
kenjiArai 0:5b88d5760320 169 *
kenjiArai 0:5b88d5760320 170 * // Configure divisors
kenjiArai 0:5b88d5760320 171 * uint32_t prescale = SystemCoreClock / 1000000;
kenjiArai 0:5b88d5760320 172 * TIMER_PRESCALE = prescale - 1;
kenjiArai 0:5b88d5760320 173 * TIMER_CTRL |= TIMER_CTRL_ENABLE_Msk;
kenjiArai 0:5b88d5760320 174 *
kenjiArai 0:5b88d5760320 175 * // Install the interrupt handler
kenjiArai 0:5b88d5760320 176 * NVIC_SetVector(TIMER_IRQn, (uint32_t)us_ticker_irq_handler);
kenjiArai 0:5b88d5760320 177 * NVIC_EnableIRQ(TIMER_IRQn);
kenjiArai 0:5b88d5760320 178 * }
kenjiArai 0:5b88d5760320 179 * @endcode
kenjiArai 0:5b88d5760320 180 */
kenjiArai 0:5b88d5760320 181 void us_ticker_init(void);
kenjiArai 0:5b88d5760320 182
kenjiArai 0:5b88d5760320 183 /** Deinitialize the us ticker
kenjiArai 0:5b88d5760320 184 *
kenjiArai 0:5b88d5760320 185 * Powerdown the us ticker in preparation for sleep, powerdown, or reset.
kenjiArai 0:5b88d5760320 186 *
kenjiArai 0:5b88d5760320 187 * After this function is called, no other ticker functions should be called
kenjiArai 0:5b88d5760320 188 * except us_ticker_init(), calling any function other than init is undefined.
kenjiArai 0:5b88d5760320 189 *
kenjiArai 0:5b88d5760320 190 * @note This function stops the ticker from counting.
kenjiArai 0:5b88d5760320 191 *
kenjiArai 0:5b88d5760320 192 * Pseudo Code:
kenjiArai 0:5b88d5760320 193 * @code
kenjiArai 0:5b88d5760320 194 * uint32_t us_ticker_free()
kenjiArai 0:5b88d5760320 195 * {
kenjiArai 0:5b88d5760320 196 * // Disable timer
kenjiArai 0:5b88d5760320 197 * TIMER_CTRL &= ~TIMER_CTRL_ENABLE_Msk;
kenjiArai 0:5b88d5760320 198 *
kenjiArai 0:5b88d5760320 199 * // Disable the compare interrupt
kenjiArai 0:5b88d5760320 200 * TIMER_CTRL &= ~TIMER_CTRL_COMPARE_ENABLE_Msk;
kenjiArai 0:5b88d5760320 201 *
kenjiArai 0:5b88d5760320 202 * // Disable timer interrupt
kenjiArai 0:5b88d5760320 203 * NVIC_DisableIRQ(TIMER_IRQn);
kenjiArai 0:5b88d5760320 204 *
kenjiArai 0:5b88d5760320 205 * // Disable clock gate so processor cannot read TIMER registers
kenjiArai 0:5b88d5760320 206 * POWER_CTRL &= ~POWER_CTRL_TIMER_Msk;
kenjiArai 0:5b88d5760320 207 * }
kenjiArai 0:5b88d5760320 208 * @endcode
kenjiArai 0:5b88d5760320 209 *
kenjiArai 0:5b88d5760320 210 */
kenjiArai 0:5b88d5760320 211 void us_ticker_free(void);
kenjiArai 0:5b88d5760320 212
kenjiArai 0:5b88d5760320 213 /** Read the current counter
kenjiArai 0:5b88d5760320 214 *
kenjiArai 0:5b88d5760320 215 * Read the current counter value without performing frequency conversions.
kenjiArai 0:5b88d5760320 216 * If no rollover has occurred, the seconds passed since us_ticker_init()
kenjiArai 0:5b88d5760320 217 * was called can be found by dividing the ticks returned by this function
kenjiArai 0:5b88d5760320 218 * by the frequency returned by ::us_ticker_get_info.
kenjiArai 0:5b88d5760320 219 *
kenjiArai 0:5b88d5760320 220 * @return The current timer's counter value in ticks
kenjiArai 0:5b88d5760320 221 *
kenjiArai 0:5b88d5760320 222 * Pseudo Code:
kenjiArai 0:5b88d5760320 223 * @code
kenjiArai 0:5b88d5760320 224 * uint32_t us_ticker_read()
kenjiArai 0:5b88d5760320 225 * {
kenjiArai 0:5b88d5760320 226 * return TIMER_COUNT;
kenjiArai 0:5b88d5760320 227 * }
kenjiArai 0:5b88d5760320 228 * @endcode
kenjiArai 0:5b88d5760320 229 */
kenjiArai 0:5b88d5760320 230 uint32_t (us_ticker_read)(void);
kenjiArai 0:5b88d5760320 231
kenjiArai 0:5b88d5760320 232 /** Set interrupt for specified timestamp
kenjiArai 0:5b88d5760320 233 *
kenjiArai 0:5b88d5760320 234 * @param timestamp The time in ticks to be set
kenjiArai 0:5b88d5760320 235 *
kenjiArai 0:5b88d5760320 236 * @note no special handling needs to be done for times in the past
kenjiArai 0:5b88d5760320 237 * as the common timer code will detect this and call
kenjiArai 0:5b88d5760320 238 * us_ticker_fire_interrupt() if this is the case
kenjiArai 0:5b88d5760320 239 *
kenjiArai 0:5b88d5760320 240 * @note calling this function with timestamp of more than the supported
kenjiArai 0:5b88d5760320 241 * number of bits returned by ::us_ticker_get_info results in undefined
kenjiArai 0:5b88d5760320 242 * behavior.
kenjiArai 0:5b88d5760320 243 *
kenjiArai 0:5b88d5760320 244 * Pseudo Code:
kenjiArai 0:5b88d5760320 245 * @code
kenjiArai 0:5b88d5760320 246 * void us_ticker_set_interrupt(timestamp_t timestamp)
kenjiArai 0:5b88d5760320 247 * {
kenjiArai 0:5b88d5760320 248 * TIMER_COMPARE = timestamp;
kenjiArai 0:5b88d5760320 249 * TIMER_CTRL |= TIMER_CTRL_COMPARE_ENABLE_Msk;
kenjiArai 0:5b88d5760320 250 * }
kenjiArai 0:5b88d5760320 251 * @endcode
kenjiArai 0:5b88d5760320 252 */
kenjiArai 0:5b88d5760320 253 void us_ticker_set_interrupt(timestamp_t timestamp);
kenjiArai 0:5b88d5760320 254
kenjiArai 0:5b88d5760320 255 /** Disable us ticker interrupt
kenjiArai 0:5b88d5760320 256 *
kenjiArai 0:5b88d5760320 257 * Pseudo Code:
kenjiArai 0:5b88d5760320 258 * @code
kenjiArai 0:5b88d5760320 259 * void us_ticker_disable_interrupt(void)
kenjiArai 0:5b88d5760320 260 * {
kenjiArai 0:5b88d5760320 261 * // Disable the compare interrupt
kenjiArai 0:5b88d5760320 262 * TIMER_CTRL &= ~TIMER_CTRL_COMPARE_ENABLE_Msk;
kenjiArai 0:5b88d5760320 263 * }
kenjiArai 0:5b88d5760320 264 * @endcode
kenjiArai 0:5b88d5760320 265 */
kenjiArai 0:5b88d5760320 266 void us_ticker_disable_interrupt(void);
kenjiArai 0:5b88d5760320 267
kenjiArai 0:5b88d5760320 268 /** Clear us ticker interrupt
kenjiArai 0:5b88d5760320 269 *
kenjiArai 0:5b88d5760320 270 * Pseudo Code:
kenjiArai 0:5b88d5760320 271 * @code
kenjiArai 0:5b88d5760320 272 * void us_ticker_clear_interrupt(void)
kenjiArai 0:5b88d5760320 273 * {
kenjiArai 0:5b88d5760320 274 * // Write to the ICR (interrupt clear register) of the TIMER
kenjiArai 0:5b88d5760320 275 * TIMER_ICR = TIMER_ICR_COMPARE_Msk;
kenjiArai 0:5b88d5760320 276 * }
kenjiArai 0:5b88d5760320 277 * @endcode
kenjiArai 0:5b88d5760320 278 */
kenjiArai 0:5b88d5760320 279 void us_ticker_clear_interrupt(void);
kenjiArai 0:5b88d5760320 280
kenjiArai 0:5b88d5760320 281 /** Set pending interrupt that should be fired right away.
kenjiArai 0:5b88d5760320 282 *
kenjiArai 0:5b88d5760320 283 * The ticker should be initialized prior calling this function.
kenjiArai 0:5b88d5760320 284 *
kenjiArai 0:5b88d5760320 285 * Pseudo Code:
kenjiArai 0:5b88d5760320 286 * @code
kenjiArai 0:5b88d5760320 287 * void us_ticker_fire_interrupt(void)
kenjiArai 0:5b88d5760320 288 * {
kenjiArai 0:5b88d5760320 289 * NVIC_SetPendingIRQ(TIMER_IRQn);
kenjiArai 0:5b88d5760320 290 * }
kenjiArai 0:5b88d5760320 291 * @endcode
kenjiArai 0:5b88d5760320 292 */
kenjiArai 0:5b88d5760320 293 void us_ticker_fire_interrupt(void);
kenjiArai 0:5b88d5760320 294
kenjiArai 0:5b88d5760320 295 /** Get frequency and counter bits of this ticker.
kenjiArai 0:5b88d5760320 296 *
kenjiArai 0:5b88d5760320 297 * Pseudo Code:
kenjiArai 0:5b88d5760320 298 * @code
kenjiArai 0:5b88d5760320 299 * const ticker_info_t* us_ticker_get_info()
kenjiArai 0:5b88d5760320 300 * {
kenjiArai 0:5b88d5760320 301 * static const ticker_info_t info = {
kenjiArai 0:5b88d5760320 302 * 1000000, // 1 MHz
kenjiArai 0:5b88d5760320 303 * 32 // 32 bit counter
kenjiArai 0:5b88d5760320 304 * };
kenjiArai 0:5b88d5760320 305 * return &info;
kenjiArai 0:5b88d5760320 306 * }
kenjiArai 0:5b88d5760320 307 * @endcode
kenjiArai 0:5b88d5760320 308 */
kenjiArai 0:5b88d5760320 309 const ticker_info_t *us_ticker_get_info(void);
kenjiArai 0:5b88d5760320 310
kenjiArai 0:5b88d5760320 311 /**@}*/
kenjiArai 0:5b88d5760320 312
kenjiArai 0:5b88d5760320 313 #ifdef __cplusplus
kenjiArai 0:5b88d5760320 314 }
kenjiArai 0:5b88d5760320 315 #endif
kenjiArai 0:5b88d5760320 316
kenjiArai 0:5b88d5760320 317 #endif
kenjiArai 0:5b88d5760320 318
kenjiArai 0:5b88d5760320 319 /** @}*/