1 /** 2 * @file tmr.h 3 * @brief Timer (TMR) function prototypes and data types. 4 */ 5 6 /****************************************************************************** 7 * 8 * Copyright (C) 2022-2023 Maxim Integrated Products, Inc. (now owned by 9 * Analog Devices, Inc.), 10 * Copyright (C) 2023-2024 Analog Devices, Inc. 11 * 12 * Licensed under the Apache License, Version 2.0 (the "License"); 13 * you may not use this file except in compliance with the License. 14 * You may obtain a copy of the License at 15 * 16 * http://www.apache.org/licenses/LICENSE-2.0 17 * 18 * Unless required by applicable law or agreed to in writing, software 19 * distributed under the License is distributed on an "AS IS" BASIS, 20 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 21 * See the License for the specific language governing permissions and 22 * limitations under the License. 23 * 24 ******************************************************************************/ 25 26 /* Define to prevent redundant inclusion */ 27 #ifndef LIBRARIES_PERIPHDRIVERS_INCLUDE_MAX32662_TMR_H_ 28 #define LIBRARIES_PERIPHDRIVERS_INCLUDE_MAX32662_TMR_H_ 29 30 /* **** Includes **** */ 31 #include "gcr_regs.h" 32 #include "mcr_regs.h" 33 #include "mxc_device.h" 34 #include "mxc_pins.h" 35 #include "mxc_sys.h" 36 #include "stdbool.h" 37 #include "tmr_regs.h" 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 /** 44 * @defgroup tmr Timer (TMR) 45 * @ingroup periphlibs 46 * @{ 47 */ 48 49 /** 50 * @brief Timer prescaler values 51 */ 52 typedef enum { 53 MXC_TMR_PRES_1 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_1, /**< Divide input clock by 1 */ 54 MXC_TMR_PRES_2 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_2, /**< Divide input clock by 2 */ 55 MXC_TMR_PRES_4 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_4, /**< Divide input clock by 4 */ 56 MXC_TMR_PRES_8 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_8, /**< Divide input clock by 8 */ 57 MXC_TMR_PRES_16 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_16, /**< Divide input clock by 16 */ 58 MXC_TMR_PRES_32 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_32, /**< Divide input clock by 32 */ 59 MXC_TMR_PRES_64 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_64, /**< Divide input clock by 64 */ 60 MXC_TMR_PRES_128 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_128, /**< Divide input clock by 128 */ 61 MXC_TMR_PRES_256 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_256, /**< Divide input clock by 256 */ 62 MXC_TMR_PRES_512 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_512, /**< Divide input clock by 512 */ 63 MXC_TMR_PRES_1024 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_1024, /**< Divide input clock by 1024 */ 64 MXC_TMR_PRES_2048 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_2048, /**< Divide input clock by 2048 */ 65 MXC_TMR_PRES_4096 = MXC_S_TMR_CTRL0_CLKDIV_A_DIV_BY_4096, /**< Divide input clock by 4096 */ 66 67 // Legacy names 68 TMR_PRES_1 = MXC_TMR_PRES_1, 69 TMR_PRES_2 = MXC_TMR_PRES_2, 70 TMR_PRES_4 = MXC_TMR_PRES_4, 71 TMR_PRES_8 = MXC_TMR_PRES_8, 72 TMR_PRES_16 = MXC_TMR_PRES_16, 73 TMR_PRES_32 = MXC_TMR_PRES_32, 74 TMR_PRES_64 = MXC_TMR_PRES_64, 75 TMR_PRES_128 = MXC_TMR_PRES_128, 76 TMR_PRES_256 = MXC_TMR_PRES_256, 77 TMR_PRES_512 = MXC_TMR_PRES_512, 78 TMR_PRES_1024 = MXC_TMR_PRES_1024, 79 TMR_PRES_2048 = MXC_TMR_PRES_2048, 80 TMR_PRES_4096 = MXC_TMR_PRES_4096 81 } mxc_tmr_pres_t; 82 83 /** 84 * @brief Timer modes 85 */ 86 typedef enum { 87 MXC_TMR_MODE_ONESHOT = MXC_V_TMR_CTRL0_MODE_A_ONE_SHOT, ///< Timer Mode ONESHOT 88 MXC_TMR_MODE_CONTINUOUS = MXC_V_TMR_CTRL0_MODE_A_CONTINUOUS, ///< Timer Mode CONTINUOUS 89 MXC_TMR_MODE_COUNTER = MXC_V_TMR_CTRL0_MODE_A_COUNTER, ///< Timer Mode COUNTER 90 MXC_TMR_MODE_PWM = MXC_V_TMR_CTRL0_MODE_A_PWM, ///< Timer Mode PWM 91 MXC_TMR_MODE_CAPTURE = MXC_V_TMR_CTRL0_MODE_A_CAPTURE, ///< Timer Mode CAPTURE 92 MXC_TMR_MODE_COMPARE = MXC_V_TMR_CTRL0_MODE_A_COMPARE, ///< Timer Mode COMPARE 93 MXC_TMR_MODE_GATED = MXC_V_TMR_CTRL0_MODE_A_GATED, ///< Timer Mode GATED 94 MXC_TMR_MODE_CAPTURE_COMPARE = MXC_V_TMR_CTRL0_MODE_A_CAPCOMP, ///< Timer Mode CAPTURECOMPARE 95 MXC_TMR_MODE_DUAL_EDGE = MXC_V_TMR_CTRL0_MODE_A_DUAL_EDGE, ///< Timer Mode DUALEDGE 96 97 // Legacy names 98 TMR_MODE_ONESHOT = MXC_TMR_MODE_ONESHOT, 99 TMR_MODE_CONTINUOUS = MXC_TMR_MODE_CONTINUOUS, 100 TMR_MODE_COUNTER = MXC_TMR_MODE_COUNTER, 101 TMR_MODE_PWM = MXC_TMR_MODE_PWM, 102 TMR_MODE_CAPTURE = MXC_TMR_MODE_CAPTURE, 103 TMR_MODE_COMPARE = MXC_TMR_MODE_COMPARE, 104 TMR_MODE_GATED = MXC_TMR_MODE_GATED, 105 TMR_MODE_CAPTURE_COMPARE = MXC_TMR_MODE_CAPTURE_COMPARE, 106 TMR_MODE_DUAL_EDGE = MXC_TMR_MODE_DUAL_EDGE 107 } mxc_tmr_mode_t; 108 109 /** 110 * @brief Timer bit mode 111 * 112 */ 113 typedef enum { 114 MXC_TMR_BIT_MODE_32 = 0, /**< Timer Mode 32 bit */ 115 MXC_TMR_BIT_MODE_16A, /**< Timer Mode Lower 16 bit */ 116 MXC_TMR_BIT_MODE_16B, /**< Timer Mode Upper 16 bit */ 117 118 // Legacy names 119 TMR_BIT_MODE_32 = MXC_TMR_BIT_MODE_32, 120 TMR_BIT_MODE_16A = MXC_TMR_BIT_MODE_16A, 121 TMR_BIT_MODE_16B = MXC_TMR_BIT_MODE_16B, 122 } mxc_tmr_bit_mode_t; 123 124 /** 125 * @brief Timer units of time enumeration 126 */ 127 typedef enum { 128 MXC_TMR_UNIT_NANOSEC = 0, /**< Nanosecond Unit Indicator */ 129 MXC_TMR_UNIT_MICROSEC, /**< Microsecond Unit Indicator */ 130 MXC_TMR_UNIT_MILLISEC, /**< Millisecond Unit Indicator */ 131 MXC_TMR_UNIT_SEC, /**< Second Unit Indicator */ 132 133 // Legacy names 134 TMR_UNIT_NANOSEC = MXC_TMR_UNIT_NANOSEC, 135 TMR_UNIT_MICROSEC = MXC_TMR_UNIT_MICROSEC, 136 TMR_UNIT_MILLISEC = MXC_TMR_UNIT_MILLISEC, 137 TMR_UNIT_SEC = MXC_TMR_UNIT_SEC, 138 } mxc_tmr_unit_t; 139 140 /** 141 * @brief Peripheral Clock settings 142 */ 143 typedef enum { 144 MXC_TMR_APB_CLK = 0, /**< PCLK */ 145 MXC_TMR_EXT_CLK = 1, /**< External Clock */ 146 MXC_TMR_IBRO_CLK = 2, /**< 7.3728MHz Clock */ 147 MXC_TMR_ERFO_CLK = 3, /**< 32MHz Clock */ 148 MXC_TMR_ERTCO_CLK = 4, /**< 32.768KHz Clock */ 149 MXC_TMR_INRO_CLK = 5, /**< 80KHz Clock */ 150 151 // Legacy names 152 /*8M and 60M clocks can be used for Timers 0,1,2 and 3*/ 153 MXC_TMR_60M_CLK, // Not supported as TMR clock source 154 MXC_TMR_32M_CLK = MXC_TMR_ERFO_CLK, 155 MXC_TMR_8M_CLK = MXC_TMR_IBRO_CLK, 156 /*32K clock can be used for Timers 0,1,2,3 and 4*/ 157 MXC_TMR_32K_CLK = MXC_TMR_ERTCO_CLK, 158 /*80K and EXT clocks can only be used for Timers 4 and 5*/ 159 MXC_TMR_80K_CLK = MXC_TMR_INRO_CLK, 160 } mxc_tmr_clock_t; 161 162 /** 163 * @brief Timer Configuration 164 */ 165 typedef struct { 166 mxc_tmr_pres_t pres; /**< Desired timer prescaler */ 167 mxc_tmr_mode_t mode; /**< Desired timer mode */ 168 mxc_tmr_bit_mode_t bitMode; /**< Desired timer bits */ 169 mxc_tmr_clock_t clock; /**< Desired clock source */ 170 uint32_t cmp_cnt; /**< Compare register value in timer ticks */ 171 unsigned pol; /**< Polarity (0 or 1) */ 172 } mxc_tmr_cfg_t; 173 174 /* **** Definitions **** */ 175 typedef void (*mxc_tmr_complete_t)(int error); 176 177 /* **** Function Prototypes **** */ 178 179 /** 180 * @brief Initialize timer module clock. 181 * @note On default this function enables TMR peripheral clock and related GPIOs. 182 * if you wish to manage clock and gpio related things in upper level instead of here. 183 * Define MSDK_NO_GPIO_CLK_INIT flag in project.mk file. 184 * By this flag this function will remove clock and gpio related codes from file. 185 * 186 * @param tmr Pointer to timer module to initialize. 187 * @param cfg System configuration object 188 * @param init_pins True will initialize pins corresponding to the TMR and False will not if pins are pinned out otherwise it will not 189 * be used, has no effect incase of MSDK_NO_GPIO_CLK_INIT has been defined. 190 * @param pin_sel Selects which set of pins to initialize (if init_pins set to true) for the given timer instance, 191 * has no effect incase of MSDK_NO_GPIO_CLK_INIT has been defined. 192 * 193 * @return Success/Fail, see \ref MXC_Error_Codes for a list of return codes. 194 */ 195 int MXC_TMR_Init(mxc_tmr_regs_t *tmr, mxc_tmr_cfg_t *cfg, bool init_pins, sys_map_t pin_sel); 196 197 /** 198 * @brief Shutdown timer module clock. 199 * @param tmr Pointer to timer module to initialize. 200 */ 201 void MXC_TMR_Shutdown(mxc_tmr_regs_t *tmr); 202 203 /** 204 * @brief Start the timer counting. 205 * @param tmr Pointer to timer module to initialize. 206 */ 207 void MXC_TMR_Start(mxc_tmr_regs_t *tmr); 208 209 /** 210 * @brief Stop the timer. 211 * @param tmr Pointer to timer module to initialize. 212 */ 213 void MXC_TMR_Stop(mxc_tmr_regs_t *tmr); 214 215 /** 216 * @brief Set the value of the first transition in PWM mode 217 * @param tmr Pointer to timer module to initialize. 218 * @param pwm New pwm count. 219 * @note Will block until safe to change the period count. 220 * @return Success/Fail, see \ref MXC_Error_Codes for a list of return codes. 221 */ 222 int MXC_TMR_SetPWM(mxc_tmr_regs_t *tmr, uint32_t pwm); 223 224 /** 225 * @brief Get the timer compare count. 226 * @param tmr Pointer to timer module to initialize. 227 * @return Returns the current compare count. 228 */ 229 uint32_t MXC_TMR_GetCompare(mxc_tmr_regs_t *tmr); 230 231 /** 232 * @brief Get the timer capture count. 233 * @param tmr Pointer to timer module to initialize. 234 * @return Returns the most recent capture count. 235 */ 236 uint32_t MXC_TMR_GetCapture(mxc_tmr_regs_t *tmr); 237 238 /** 239 * @brief Get the timer count. 240 * @param tmr Pointer to timer module to initialize. 241 * @return Returns the current count. 242 */ 243 uint32_t MXC_TMR_GetCount(mxc_tmr_regs_t *tmr); 244 245 /** 246 * @brief Calculate count for required frequency. 247 * @param tmr Timer 248 * @param clock Clock source. 249 * @param prescalar prescalar 250 * @param frequency required frequency. 251 * @return Returns the period count. 252 */ 253 uint32_t MXC_TMR_GetPeriod(mxc_tmr_regs_t *tmr, mxc_tmr_clock_t clock, uint32_t prescalar, 254 uint32_t frequency); 255 256 /** 257 * @brief Clear the timer interrupt. 258 * @param tmr Pointer to timer module to initialize. 259 */ 260 void MXC_TMR_ClearFlags(mxc_tmr_regs_t *tmr); 261 262 /** 263 * @brief Get the timer interrupt status. 264 * @param tmr Pointer to timer module to initialize. 265 * @return Returns the interrupt status. 1 if interrupt has occured. 266 */ 267 uint32_t MXC_TMR_GetFlags(mxc_tmr_regs_t *tmr); 268 269 /** 270 * @brief enable interupt 271 * 272 * @param tmr Pointer to timer module to initialize. 273 */ 274 void MXC_TMR_EnableInt(mxc_tmr_regs_t *tmr); 275 276 /** 277 * @brief disable interupt 278 * 279 * @param tmr Pointer to timer module to initialize. 280 */ 281 void MXC_TMR_DisableInt(mxc_tmr_regs_t *tmr); 282 283 /** 284 * @brief Enable wakeup from sleep 285 * 286 * @param tmr Pointer to timer module to initialize. 287 * @param cfg System configuration object 288 */ 289 void MXC_TMR_EnableWakeup(mxc_tmr_regs_t *tmr, mxc_tmr_cfg_t *cfg); 290 291 /** 292 * @brief Disable wakeup from sleep 293 * 294 * @param tmr Pointer to timer module to initialize. 295 * @param cfg System configuration object 296 */ 297 void MXC_TMR_DisableWakeup(mxc_tmr_regs_t *tmr, mxc_tmr_cfg_t *cfg); 298 299 /** 300 * @brief Set the timer compare count. 301 * @param tmr Pointer to timer module to initialize. 302 * @param cmp_cnt New compare count. 303 * @note In PWM Mode use this to set the value of the second transition. 304 */ 305 void MXC_TMR_SetCompare(mxc_tmr_regs_t *tmr, uint32_t cmp_cnt); 306 307 /** 308 * @brief Set the timer count. 309 * @param tmr Pointer to timer module to initialize. 310 * @param cnt New count. 311 */ 312 void MXC_TMR_SetCount(mxc_tmr_regs_t *tmr, uint32_t cnt); 313 314 /** 315 * @brief Dealay for a set periord of time measured in microseconds 316 * 317 * @param tmr The timer 318 * @param us microseconds to delay for 319 */ 320 void MXC_TMR_Delay(mxc_tmr_regs_t *tmr, uint32_t us); 321 322 /** 323 * @brief Start a timer that will time out after a certain number of microseconds 324 * 325 * @param tmr The timer 326 * @param us microseconds to time out after 327 */ 328 void MXC_TMR_TO_Start(mxc_tmr_regs_t *tmr, uint32_t us); 329 330 /** 331 * @brief Check on time out timer 332 * 333 * @param tmr The timer 334 * 335 * @return Success/Fail, see \ref MXC_Error_Codes for a list of return codes. 336 */ 337 int MXC_TMR_TO_Check(mxc_tmr_regs_t *tmr); 338 339 /** 340 * @brief Stop the Timeout timer 341 * 342 * @param tmr The timer 343 */ 344 void MXC_TMR_TO_Stop(mxc_tmr_regs_t *tmr); 345 346 /** 347 * @brief Clear timeout timer back to zero 348 * 349 * @param tmr The timer 350 */ 351 void MXC_TMR_TO_Clear(mxc_tmr_regs_t *tmr); 352 353 /** 354 * @brief Get elapsed time of timeout timer 355 * 356 * @param tmr The timer 357 * 358 * @return Time that has elapsed in timeout timer 359 */ 360 unsigned int MXC_TMR_TO_Elapsed(mxc_tmr_regs_t *tmr); 361 362 /** 363 * @brief Amount of time remaining until timeour 364 * 365 * @param tmr The timer 366 * 367 * @return Time that is left until timeout 368 */ 369 unsigned int MXC_TMR_TO_Remaining(mxc_tmr_regs_t *tmr); 370 371 /** 372 * @brief Start stopwatch 373 * 374 * @param tmr The timer 375 */ 376 void MXC_TMR_SW_Start(mxc_tmr_regs_t *tmr); 377 378 /** 379 * @brief Stopwatch stop 380 * 381 * @param tmr The timer 382 * 383 * @return the time when the stopwatch is stopped. 384 */ 385 unsigned int MXC_TMR_SW_Stop(mxc_tmr_regs_t *tmr); 386 387 /** 388 * @brief Get time from timer 389 * 390 * @param tmr The timer 391 * @param ticks The ticks 392 * @param time The time 393 * @param units The units 394 * 395 * @return Success/Fail, see \ref MXC_Error_Codes for a list of return codes. 396 */ 397 int MXC_TMR_GetTime(mxc_tmr_regs_t *tmr, uint32_t ticks, uint32_t *time, mxc_tmr_unit_t *units); 398 399 /** 400 * @brief Get ticks from timer 401 * 402 * @param tmr The timer 403 * @param time The time 404 * @param units The units 405 * @param ticks The ticks 406 * 407 * @return Success/Fail, see \ref MXC_Error_Codes for a list of return codes. 408 */ 409 int MXC_TMR_GetTicks(mxc_tmr_regs_t *tmr, uint32_t time, mxc_tmr_unit_t units, uint32_t *ticks); 410 411 /**@} end of group tmr */ 412 413 #ifdef __cplusplus 414 } 415 #endif 416 417 #endif // LIBRARIES_PERIPHDRIVERS_INCLUDE_MAX32662_TMR_H_ 418
