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targets/TARGET_Maxim/TARGET_MAX32625/mxc/wdt2.h@178:c26431f84b0d, 2017-11-09 (annotated)

Committer:
amithy
Date:
Thu Nov 09 22:14:37 2017 +0000
Revision:
178:c26431f84b0d
Parent:
150:02e0a0aed4ec 
test export

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<> 150:02e0a0aed4ec 1 /*******************************************************************************
<> 150:02e0a0aed4ec 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
<> 150:02e0a0aed4ec 3 *
<> 150:02e0a0aed4ec 4 * Permission is hereby granted, free of charge, to any person obtaining a
<> 150:02e0a0aed4ec 5 * copy of this software and associated documentation files (the "Software"),
<> 150:02e0a0aed4ec 6 * to deal in the Software without restriction, including without limitation
<> 150:02e0a0aed4ec 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
<> 150:02e0a0aed4ec 8 * and/or sell copies of the Software, and to permit persons to whom the
<> 150:02e0a0aed4ec 9 * Software is furnished to do so, subject to the following conditions:
<> 150:02e0a0aed4ec 10 *
<> 150:02e0a0aed4ec 11 * The above copyright notice and this permission notice shall be included
<> 150:02e0a0aed4ec 12 * in all copies or substantial portions of the Software.
<> 150:02e0a0aed4ec 13 *
<> 150:02e0a0aed4ec 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
<> 150:02e0a0aed4ec 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
<> 150:02e0a0aed4ec 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
<> 150:02e0a0aed4ec 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
<> 150:02e0a0aed4ec 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
<> 150:02e0a0aed4ec 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
<> 150:02e0a0aed4ec 20 * OTHER DEALINGS IN THE SOFTWARE.
<> 150:02e0a0aed4ec 21 *
<> 150:02e0a0aed4ec 22 * Except as contained in this notice, the name of Maxim Integrated
<> 150:02e0a0aed4ec 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
<> 150:02e0a0aed4ec 24 * Products, Inc. Branding Policy.
<> 150:02e0a0aed4ec 25 *
<> 150:02e0a0aed4ec 26 * The mere transfer of this software does not imply any licenses
<> 150:02e0a0aed4ec 27 * of trade secrets, proprietary technology, copyrights, patents,
<> 150:02e0a0aed4ec 28 * trademarks, maskwork rights, or any other form of intellectual
<> 150:02e0a0aed4ec 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
<> 150:02e0a0aed4ec 30 * ownership rights.
<> 150:02e0a0aed4ec 31 *
<> 150:02e0a0aed4ec 32 * $Date: 2016-03-21 15:44:11 -0500 (Mon, 21 Mar 2016) $
<> 150:02e0a0aed4ec 33 * $Revision: 22024 $
<> 150:02e0a0aed4ec 34 *
<> 150:02e0a0aed4ec 35 ******************************************************************************/
<> 150:02e0a0aed4ec 36
<> 150:02e0a0aed4ec 37 /**
<> 150:02e0a0aed4ec 38 * @file wdt2.h
<> 150:02e0a0aed4ec 39 * @addtogroup wdt WDT
<> 150:02e0a0aed4ec 40 * @{
<> 150:02e0a0aed4ec 41 * @brief This is the high level API for the watchdog timer interface module
<> 150:02e0a0aed4ec 42 *
<> 150:02e0a0aed4ec 43 */
<> 150:02e0a0aed4ec 44
<> 150:02e0a0aed4ec 45 #ifndef _WDT2_H
<> 150:02e0a0aed4ec 46 #define _WDT2_H
<> 150:02e0a0aed4ec 47
<> 150:02e0a0aed4ec 48 #include "mxc_config.h"
<> 150:02e0a0aed4ec 49 #include "wdt2_regs.h"
<> 150:02e0a0aed4ec 50 #include "mxc_assert.h"
<> 150:02e0a0aed4ec 51
<> 150:02e0a0aed4ec 52 #ifdef __cplusplus
<> 150:02e0a0aed4ec 53 extern "C" {
<> 150:02e0a0aed4ec 54 #endif
<> 150:02e0a0aed4ec 55
<> 150:02e0a0aed4ec 56 #define WDT2_FLAGS_CLEAR_ALL (MXC_F_WDT2_FLAGS_TIMEOUT| \
<> 150:02e0a0aed4ec 57 MXC_F_WDT2_FLAGS_RESET_OUT)
<> 150:02e0a0aed4ec 58 /**
<> 150:02e0a0aed4ec 59 * @enum wdt2_period_t
<> 150:02e0a0aed4ec 60 * @brief WatchDog Timer 2 Period Settings
<> 150:02e0a0aed4ec 61 */
<> 150:02e0a0aed4ec 62 typedef enum {
<> 150:02e0a0aed4ec 63 WDT2_PERIOD_2_25_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_25_NANO_CLKS, /**< 2^25 WDT clocks. */
<> 150:02e0a0aed4ec 64 WDT2_PERIOD_2_24_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_24_NANO_CLKS, /**< 2^24 WDT clocks. */
<> 150:02e0a0aed4ec 65 WDT2_PERIOD_2_23_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_23_NANO_CLKS, /**< 2^23 WDT clocks. */
<> 150:02e0a0aed4ec 66 WDT2_PERIOD_2_22_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_22_NANO_CLKS, /**< 2^22 WDT clocks. */
<> 150:02e0a0aed4ec 67 WDT2_PERIOD_2_21_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_21_NANO_CLKS, /**< 2^21 WDT clocks. */
<> 150:02e0a0aed4ec 68 WDT2_PERIOD_2_20_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_20_NANO_CLKS, /**< 2^20 WDT clocks. */
<> 150:02e0a0aed4ec 69 WDT2_PERIOD_2_19_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_19_NANO_CLKS, /**< 2^19 WDT clocks. */
<> 150:02e0a0aed4ec 70 WDT2_PERIOD_2_18_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_18_NANO_CLKS, /**< 2^18 WDT clocks. */
<> 150:02e0a0aed4ec 71 WDT2_PERIOD_2_17_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_17_NANO_CLKS, /**< 2^17 WDT clocks. */
<> 150:02e0a0aed4ec 72 WDT2_PERIOD_2_16_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_16_NANO_CLKS, /**< 2^16 WDT clocks. */
<> 150:02e0a0aed4ec 73 WDT2_PERIOD_2_15_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_15_NANO_CLKS, /**< 2^15 WDT clocks. */
<> 150:02e0a0aed4ec 74 WDT2_PERIOD_2_14_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_14_NANO_CLKS, /**< 2^14 WDT clocks. */
<> 150:02e0a0aed4ec 75 WDT2_PERIOD_2_13_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_13_NANO_CLKS, /**< 2^13 WDT clocks. */
<> 150:02e0a0aed4ec 76 WDT2_PERIOD_2_12_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_12_NANO_CLKS, /**< 2^12 WDT clocks. */
<> 150:02e0a0aed4ec 77 WDT2_PERIOD_2_11_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_11_NANO_CLKS, /**< 2^11 WDT clocks. */
<> 150:02e0a0aed4ec 78 WDT2_PERIOD_2_10_CLKS = MXC_V_WDT2_CTRL_INT_PERIOD_2_10_NANO_CLKS, /**< 2^10 WDT clocks. */
<> 150:02e0a0aed4ec 79 WDT2_PERIOD_MAX /**< Maximum Period is Max - 1 */
<> 150:02e0a0aed4ec 80 } wdt2_period_t;
<> 150:02e0a0aed4ec 81
<> 150:02e0a0aed4ec 82
<> 150:02e0a0aed4ec 83
<> 150:02e0a0aed4ec 84 /**
<> 150:02e0a0aed4ec 85 * @brief Initializes the NanoRing for the watchdog clock and sets watchdog in a known disabled state
<> 150:02e0a0aed4ec 86 * @param runInSleep If non-zero, the WDT2 operates in Sleep Modes for the device,
<> 150:02e0a0aed4ec 87 * 0 disables the WDT2 during Sleep Modes.
<> 150:02e0a0aed4ec 88 * @param unlock_key The WDT2 unlock key value, use MXC_V_WDT2_UNLOCK_KEY
<> 150:02e0a0aed4ec 89 *
<> 150:02e0a0aed4ec 90 * @retval E_NO_ERROR Watchdog Timer initialized as requested
<> 150:02e0a0aed4ec 91 * @retval E_BAD_STATE Invalid unlock_key, WDT failed to unlock.
<> 150:02e0a0aed4ec 92
<> 150:02e0a0aed4ec 93 */
<> 150:02e0a0aed4ec 94 int WDT2_Init(uint8_t runInSleep, uint8_t unlock_key);
<> 150:02e0a0aed4ec 95
<> 150:02e0a0aed4ec 96 /**
<> 150:02e0a0aed4ec 97 * @brief Configures and enables the wake-up timeout for the watchdog specified.
<> 150:02e0a0aed4ec 98 *
<> 150:02e0a0aed4ec 99 * @param int_period Interrupt period.
<> 150:02e0a0aed4ec 100 * @param unlock_key Key to unlock watchdog.
<> 150:02e0a0aed4ec 101 *
<> 150:02e0a0aed4ec 102 * @retval E_NO_ERROR WDT2 Interrupt period enabled with the int_period time.
<> 150:02e0a0aed4ec 103 * @retval E_INVALID Requested Period is greater than the maximum supported
<> 150:02e0a0aed4ec 104 * @retval E_BAD_STATE Invalid unlock_key, WDT failed to unlock.
<> 150:02e0a0aed4ec 105 *
<> 150:02e0a0aed4ec 106 */
<> 150:02e0a0aed4ec 107 int WDT2_EnableWakeUp(wdt2_period_t int_period, uint8_t unlock_key);
<> 150:02e0a0aed4ec 108
<> 150:02e0a0aed4ec 109 /**
<> 150:02e0a0aed4ec 110 * @brief Disables the interrupt timeout for the watchdog specified.
<> 150:02e0a0aed4ec 111 *
<> 150:02e0a0aed4ec 112 * @param unlock_key Key to unlock watchdog.
<> 150:02e0a0aed4ec 113 *
<> 150:02e0a0aed4ec 114 * @retval E_NO_ERROR Wakeup disabled.
<> 150:02e0a0aed4ec 115 * @retval E_BAD_STATE Invalid unlock_key, WDT failed to unlock.
<> 150:02e0a0aed4ec 116 */
<> 150:02e0a0aed4ec 117 int WDT2_DisableWakeUp(uint8_t unlock_key);
<> 150:02e0a0aed4ec 118
<> 150:02e0a0aed4ec 119 /**
<> 150:02e0a0aed4ec 120 * @brief Configures and enables the reset timeout for the watchdog specified.
<> 150:02e0a0aed4ec 121 *
<> 150:02e0a0aed4ec 122 * @param rst_period Reset period.
<> 150:02e0a0aed4ec 123 * @param unlock_key Key to unlock watchdog.
<> 150:02e0a0aed4ec 124 *
<> 150:02e0a0aed4ec 125 * @retval E_NO_ERROR Reset timeout enabled with the rst_period time.
<> 150:02e0a0aed4ec 126 * @retval E_INVALID Requested Period is greater than the maximum supported
<> 150:02e0a0aed4ec 127 * @retval E_BAD_STATE Invalid unlock_key, WDT failed to unlock.
<> 150:02e0a0aed4ec 128 */
<> 150:02e0a0aed4ec 129 int WDT2_EnableReset(wdt2_period_t rst_period, uint8_t unlock_key);
<> 150:02e0a0aed4ec 130
<> 150:02e0a0aed4ec 131 /**
<> 150:02e0a0aed4ec 132 * @brief Disables the reset timeout for the watchdog specified.
<> 150:02e0a0aed4ec 133 *
<> 150:02e0a0aed4ec 134 * @param unlock_key Key to unlock watchdog.
<> 150:02e0a0aed4ec 135 *
<> 150:02e0a0aed4ec 136 * @retval E_NO_ERROR Reset disabled.
<> 150:02e0a0aed4ec 137 * @retval E_BAD_STATE Invalid unlock_key, WDT failed to unlock.
<> 150:02e0a0aed4ec 138 */
<> 150:02e0a0aed4ec 139 int WDT2_DisableReset(uint8_t unlock_key);
<> 150:02e0a0aed4ec 140
<> 150:02e0a0aed4ec 141 /**
<> 150:02e0a0aed4ec 142 * @brief Gets the watchdog interrupt flags
<> 150:02e0a0aed4ec 143 *
<> 150:02e0a0aed4ec 144 * @retval 0 = flags not set, non-zero = flag is set
<> 150:02e0a0aed4ec 145 */
<> 150:02e0a0aed4ec 146 __STATIC_INLINE uint32_t WDT2_GetFlags(void)
<> 150:02e0a0aed4ec 147 {
<> 150:02e0a0aed4ec 148 return (MXC_WDT2->flags);
<> 150:02e0a0aed4ec 149 }
<> 150:02e0a0aed4ec 150
<> 150:02e0a0aed4ec 151 /**
<> 150:02e0a0aed4ec 152 * @brief Clears the watchdog interrupt flags based on the mask
<> 150:02e0a0aed4ec 153 *
<> 150:02e0a0aed4ec 154 * @param mask bits to clear
<> 150:02e0a0aed4ec 155 *
<> 150:02e0a0aed4ec 156 */
<> 150:02e0a0aed4ec 157 __STATIC_INLINE void WDT2_ClearFlags(uint32_t mask)
<> 150:02e0a0aed4ec 158 {
<> 150:02e0a0aed4ec 159 MXC_WDT2->flags = mask;
<> 150:02e0a0aed4ec 160 }
<> 150:02e0a0aed4ec 161
<> 150:02e0a0aed4ec 162 /**
<> 150:02e0a0aed4ec 163 * @brief Starts the watchdog specified.
<> 150:02e0a0aed4ec 164 *
<> 150:02e0a0aed4ec 165 * @param unlock_key Key to unlock watchdog.
<> 150:02e0a0aed4ec 166 *
<> 150:02e0a0aed4ec 167 * @retval E_NO_ERROR if everything is successful, error if unsuccessful.
<> 150:02e0a0aed4ec 168 * @retval E_BAD_STATE Invalid unlock_key, WDT failed to unlock.
<> 150:02e0a0aed4ec 169 */
<> 150:02e0a0aed4ec 170 int WDT2_Start(uint8_t unlock_key);
<> 150:02e0a0aed4ec 171
<> 150:02e0a0aed4ec 172 /**
<> 150:02e0a0aed4ec 173 * @brief Feeds the watchdog specified.
<> 150:02e0a0aed4ec 174 *
<> 150:02e0a0aed4ec 175 * @retval E_NO_ERROR if everything is successful, error if unsuccessful.
<> 150:02e0a0aed4ec 176 */
<> 150:02e0a0aed4ec 177 void WDT2_Reset(void);
<> 150:02e0a0aed4ec 178
<> 150:02e0a0aed4ec 179 /**
<> 150:02e0a0aed4ec 180 * @brief Stops the WatchDog Timer 2.
<> 150:02e0a0aed4ec 181 *
<> 150:02e0a0aed4ec 182 * @param unlock_key Key to unlock watchdog.
<> 150:02e0a0aed4ec 183 *
<> 150:02e0a0aed4ec 184 * @retval E_NO_ERROR if everything is successful, error if unsuccessful.
<> 150:02e0a0aed4ec 185 * @retval E_BAD_STATE Invalid unlock_key, WDT failed to unlock.
<> 150:02e0a0aed4ec 186 */
<> 150:02e0a0aed4ec 187 int WDT2_Stop(uint8_t unlock_key);
<> 150:02e0a0aed4ec 188
<> 150:02e0a0aed4ec 189 /**
<> 150:02e0a0aed4ec 190 * @brief Determines if the watchdog is running
<> 150:02e0a0aed4ec 191 *
<> 150:02e0a0aed4ec 192 * @retval 0 = watchdog timer is off, non-zero = watchdog timer is on
<> 150:02e0a0aed4ec 193 */
<> 150:02e0a0aed4ec 194 __STATIC_INLINE int WDT2_IsActive(void)
<> 150:02e0a0aed4ec 195 {
<> 150:02e0a0aed4ec 196 return (!!(MXC_WDT2->ctrl & MXC_F_WDT2_CTRL_EN_TIMER));
<> 150:02e0a0aed4ec 197 }
<> 150:02e0a0aed4ec 198
<> 150:02e0a0aed4ec 199 /**
<> 150:02e0a0aed4ec 200 * @}
<> 150:02e0a0aed4ec 201 */
<> 150:02e0a0aed4ec 202
<> 150:02e0a0aed4ec 203 #ifdef __cplusplus
<> 150:02e0a0aed4ec 204 }
<> 150:02e0a0aed4ec 205 #endif
<> 150:02e0a0aed4ec 206
<> 150:02e0a0aed4ec 207 #endif /* _WDT_H */