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TARGET_TB_SENSE_12/TOOLCHAIN_IAR/em_pcnt.h@172:65be27845400, 2019-02-20 (annotated)
- Committer:
- AnnaBridge
- Date:
- Wed Feb 20 20:53:29 2019 +0000
- Revision:
- 172:65be27845400
- Parent:
- 171:3a7713b1edbc
mbed library release version 165
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
AnnaBridge | 156:ff21514d8981 | 1 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 2 | * @file em_pcnt.h |
AnnaBridge | 156:ff21514d8981 | 3 | * @brief Pulse Counter (PCNT) peripheral API |
Anna Bridge |
160:5571c4ff569f | 4 | * @version 5.3.3 |
AnnaBridge | 156:ff21514d8981 | 5 | ******************************************************************************* |
Anna Bridge |
160:5571c4ff569f | 6 | * # License |
AnnaBridge | 156:ff21514d8981 | 7 | * <b>Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com</b> |
AnnaBridge | 156:ff21514d8981 | 8 | ******************************************************************************* |
AnnaBridge | 156:ff21514d8981 | 9 | * |
AnnaBridge | 156:ff21514d8981 | 10 | * Permission is granted to anyone to use this software for any purpose, |
AnnaBridge | 156:ff21514d8981 | 11 | * including commercial applications, and to alter it and redistribute it |
AnnaBridge | 156:ff21514d8981 | 12 | * freely, subject to the following restrictions: |
AnnaBridge | 156:ff21514d8981 | 13 | * |
AnnaBridge | 156:ff21514d8981 | 14 | * 1. The origin of this software must not be misrepresented; you must not |
AnnaBridge | 156:ff21514d8981 | 15 | * claim that you wrote the original software. |
AnnaBridge | 156:ff21514d8981 | 16 | * 2. Altered source versions must be plainly marked as such, and must not be |
AnnaBridge | 156:ff21514d8981 | 17 | * misrepresented as being the original software. |
AnnaBridge | 156:ff21514d8981 | 18 | * 3. This notice may not be removed or altered from any source distribution. |
AnnaBridge | 156:ff21514d8981 | 19 | * |
AnnaBridge | 156:ff21514d8981 | 20 | * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no |
AnnaBridge | 156:ff21514d8981 | 21 | * obligation to support this Software. Silicon Labs is providing the |
AnnaBridge | 156:ff21514d8981 | 22 | * Software "AS IS", with no express or implied warranties of any kind, |
AnnaBridge | 156:ff21514d8981 | 23 | * including, but not limited to, any implied warranties of merchantability |
AnnaBridge | 156:ff21514d8981 | 24 | * or fitness for any particular purpose or warranties against infringement |
AnnaBridge | 156:ff21514d8981 | 25 | * of any proprietary rights of a third party. |
AnnaBridge | 156:ff21514d8981 | 26 | * |
AnnaBridge | 156:ff21514d8981 | 27 | * Silicon Labs will not be liable for any consequential, incidental, or |
AnnaBridge | 156:ff21514d8981 | 28 | * special damages, or any other relief, or for any claim by any third party, |
AnnaBridge | 156:ff21514d8981 | 29 | * arising from your use of this Software. |
AnnaBridge | 156:ff21514d8981 | 30 | * |
AnnaBridge | 156:ff21514d8981 | 31 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 32 | |
AnnaBridge | 156:ff21514d8981 | 33 | #ifndef EM_PCNT_H |
AnnaBridge | 156:ff21514d8981 | 34 | #define EM_PCNT_H |
AnnaBridge | 156:ff21514d8981 | 35 | |
AnnaBridge | 156:ff21514d8981 | 36 | #include "em_device.h" |
AnnaBridge | 156:ff21514d8981 | 37 | #if defined(PCNT_COUNT) && (PCNT_COUNT > 0) |
AnnaBridge | 156:ff21514d8981 | 38 | |
AnnaBridge | 156:ff21514d8981 | 39 | #include <stdbool.h> |
AnnaBridge | 156:ff21514d8981 | 40 | |
AnnaBridge | 156:ff21514d8981 | 41 | #ifdef __cplusplus |
AnnaBridge | 156:ff21514d8981 | 42 | extern "C" { |
AnnaBridge | 156:ff21514d8981 | 43 | #endif |
AnnaBridge | 156:ff21514d8981 | 44 | |
AnnaBridge | 156:ff21514d8981 | 45 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 46 | * @addtogroup emlib |
AnnaBridge | 156:ff21514d8981 | 47 | * @{ |
AnnaBridge | 156:ff21514d8981 | 48 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 49 | |
AnnaBridge | 156:ff21514d8981 | 50 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 51 | * @addtogroup PCNT |
AnnaBridge | 156:ff21514d8981 | 52 | * @{ |
AnnaBridge | 156:ff21514d8981 | 53 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 54 | |
AnnaBridge | 156:ff21514d8981 | 55 | /******************************************************************************* |
AnnaBridge | 156:ff21514d8981 | 56 | ******************************* DEFINES *********************************** |
AnnaBridge | 156:ff21514d8981 | 57 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 58 | /** PCNT0 Counter register size. */ |
AnnaBridge | 156:ff21514d8981 | 59 | #if defined(_EFM32_GECKO_FAMILY) |
AnnaBridge | 156:ff21514d8981 | 60 | #define PCNT0_CNT_SIZE (8) /* PCNT0 counter is 8 bits. */ |
AnnaBridge | 156:ff21514d8981 | 61 | #else |
AnnaBridge | 156:ff21514d8981 | 62 | #define PCNT0_CNT_SIZE (16) /* PCNT0 counter is 16 bits. */ |
AnnaBridge | 156:ff21514d8981 | 63 | #endif |
AnnaBridge | 156:ff21514d8981 | 64 | |
AnnaBridge | 156:ff21514d8981 | 65 | #ifdef PCNT1 |
AnnaBridge | 156:ff21514d8981 | 66 | /** PCNT1 Counter register size. */ |
AnnaBridge | 156:ff21514d8981 | 67 | #define PCNT1_CNT_SIZE (8) /* PCNT1 counter is 8 bits. */ |
AnnaBridge | 156:ff21514d8981 | 68 | #endif |
AnnaBridge | 156:ff21514d8981 | 69 | |
AnnaBridge | 156:ff21514d8981 | 70 | #ifdef PCNT2 |
AnnaBridge | 156:ff21514d8981 | 71 | /** PCNT2 Counter register size. */ |
AnnaBridge | 156:ff21514d8981 | 72 | #define PCNT2_CNT_SIZE (8) /* PCNT2 counter is 8 bits. */ |
AnnaBridge | 156:ff21514d8981 | 73 | #endif |
AnnaBridge | 156:ff21514d8981 | 74 | |
AnnaBridge | 156:ff21514d8981 | 75 | /******************************************************************************* |
AnnaBridge | 156:ff21514d8981 | 76 | ******************************** ENUMS ************************************ |
AnnaBridge | 156:ff21514d8981 | 77 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 78 | |
AnnaBridge | 156:ff21514d8981 | 79 | /** Mode selection. */ |
Anna Bridge |
160:5571c4ff569f | 80 | typedef enum { |
AnnaBridge | 156:ff21514d8981 | 81 | /** Disable pulse counter. */ |
AnnaBridge | 156:ff21514d8981 | 82 | pcntModeDisable = _PCNT_CTRL_MODE_DISABLE, |
AnnaBridge | 156:ff21514d8981 | 83 | |
AnnaBridge | 156:ff21514d8981 | 84 | /** Single input LFACLK oversampling mode (available in EM0-EM2). */ |
AnnaBridge | 156:ff21514d8981 | 85 | pcntModeOvsSingle = _PCNT_CTRL_MODE_OVSSINGLE, |
AnnaBridge | 156:ff21514d8981 | 86 | |
AnnaBridge | 156:ff21514d8981 | 87 | /** Externally clocked single input counter mode (available in EM0-EM3). */ |
AnnaBridge | 156:ff21514d8981 | 88 | pcntModeExtSingle = _PCNT_CTRL_MODE_EXTCLKSINGLE, |
AnnaBridge | 156:ff21514d8981 | 89 | |
AnnaBridge | 156:ff21514d8981 | 90 | /** Externally clocked quadrature decoder mode (available in EM0-EM3). */ |
AnnaBridge | 156:ff21514d8981 | 91 | pcntModeExtQuad = _PCNT_CTRL_MODE_EXTCLKQUAD, |
AnnaBridge | 156:ff21514d8981 | 92 | |
AnnaBridge | 156:ff21514d8981 | 93 | #if defined(_PCNT_CTRL_MODE_OVSQUAD1X) |
AnnaBridge | 156:ff21514d8981 | 94 | /** LFACLK oversampling quadrature decoder 1X mode (available in EM0-EM2). */ |
AnnaBridge | 156:ff21514d8981 | 95 | pcntModeOvsQuad1 = _PCNT_CTRL_MODE_OVSQUAD1X, |
AnnaBridge | 156:ff21514d8981 | 96 | |
AnnaBridge | 156:ff21514d8981 | 97 | /** LFACLK oversampling quadrature decoder 2X mode (available in EM0-EM2). */ |
AnnaBridge | 156:ff21514d8981 | 98 | pcntModeOvsQuad2 = _PCNT_CTRL_MODE_OVSQUAD2X, |
AnnaBridge | 156:ff21514d8981 | 99 | |
AnnaBridge | 156:ff21514d8981 | 100 | /** LFACLK oversampling quadrature decoder 4X mode (available in EM0-EM2). */ |
AnnaBridge | 156:ff21514d8981 | 101 | pcntModeOvsQuad4 = _PCNT_CTRL_MODE_OVSQUAD4X, |
AnnaBridge | 156:ff21514d8981 | 102 | #endif |
AnnaBridge | 156:ff21514d8981 | 103 | } PCNT_Mode_TypeDef; |
AnnaBridge | 156:ff21514d8981 | 104 | |
AnnaBridge | 156:ff21514d8981 | 105 | #if defined(_PCNT_CTRL_CNTEV_MASK) |
AnnaBridge | 156:ff21514d8981 | 106 | /** Counter event selection. |
AnnaBridge | 156:ff21514d8981 | 107 | * Note: unshifted values are being used for enumeration because multiple |
AnnaBridge | 156:ff21514d8981 | 108 | * configuration structure members use this type definition. */ |
Anna Bridge |
160:5571c4ff569f | 109 | typedef enum { |
AnnaBridge | 156:ff21514d8981 | 110 | /** Counts up on up-count and down on down-count events. */ |
AnnaBridge | 156:ff21514d8981 | 111 | pcntCntEventBoth = _PCNT_CTRL_CNTEV_BOTH, |
AnnaBridge | 156:ff21514d8981 | 112 | |
AnnaBridge | 156:ff21514d8981 | 113 | /** Only counts up on up-count events. */ |
AnnaBridge | 156:ff21514d8981 | 114 | pcntCntEventUp = _PCNT_CTRL_CNTEV_UP, |
AnnaBridge | 156:ff21514d8981 | 115 | |
AnnaBridge | 156:ff21514d8981 | 116 | /** Only counts down on down-count events. */ |
AnnaBridge | 156:ff21514d8981 | 117 | pcntCntEventDown = _PCNT_CTRL_CNTEV_DOWN, |
AnnaBridge | 156:ff21514d8981 | 118 | |
AnnaBridge | 156:ff21514d8981 | 119 | /** Never counts. */ |
AnnaBridge | 156:ff21514d8981 | 120 | pcntCntEventNone = _PCNT_CTRL_CNTEV_NONE |
AnnaBridge | 156:ff21514d8981 | 121 | } PCNT_CntEvent_TypeDef; |
AnnaBridge | 156:ff21514d8981 | 122 | #endif |
AnnaBridge | 156:ff21514d8981 | 123 | |
AnnaBridge | 156:ff21514d8981 | 124 | #if defined(_PCNT_INPUT_MASK) |
AnnaBridge | 156:ff21514d8981 | 125 | /** PRS sources for @p s0PRS and @p s1PRS. */ |
Anna Bridge |
160:5571c4ff569f | 126 | typedef enum { |
AnnaBridge | 156:ff21514d8981 | 127 | pcntPRSCh0 = 0, /**< PRS channel 0. */ |
AnnaBridge | 156:ff21514d8981 | 128 | pcntPRSCh1 = 1, /**< PRS channel 1. */ |
AnnaBridge | 156:ff21514d8981 | 129 | pcntPRSCh2 = 2, /**< PRS channel 2. */ |
AnnaBridge | 156:ff21514d8981 | 130 | pcntPRSCh3 = 3, /**< PRS channel 3. */ |
AnnaBridge | 156:ff21514d8981 | 131 | #if defined(PCNT_INPUT_S0PRSSEL_PRSCH4) |
AnnaBridge | 156:ff21514d8981 | 132 | pcntPRSCh4 = 4, /**< PRS channel 4. */ |
AnnaBridge | 156:ff21514d8981 | 133 | #endif |
AnnaBridge | 156:ff21514d8981 | 134 | #if defined(PCNT_INPUT_S0PRSSEL_PRSCH5) |
AnnaBridge | 156:ff21514d8981 | 135 | pcntPRSCh5 = 5, /**< PRS channel 5. */ |
AnnaBridge | 156:ff21514d8981 | 136 | #endif |
AnnaBridge | 156:ff21514d8981 | 137 | #if defined(PCNT_INPUT_S0PRSSEL_PRSCH6) |
AnnaBridge | 156:ff21514d8981 | 138 | pcntPRSCh6 = 6, /**< PRS channel 6. */ |
AnnaBridge | 156:ff21514d8981 | 139 | #endif |
AnnaBridge | 156:ff21514d8981 | 140 | #if defined(PCNT_INPUT_S0PRSSEL_PRSCH7) |
AnnaBridge | 156:ff21514d8981 | 141 | pcntPRSCh7 = 7, /**< PRS channel 7. */ |
AnnaBridge | 156:ff21514d8981 | 142 | #endif |
AnnaBridge | 156:ff21514d8981 | 143 | #if defined(PCNT_INPUT_S0PRSSEL_PRSCH8) |
AnnaBridge | 156:ff21514d8981 | 144 | pcntPRSCh8 = 8, /**< PRS channel 8. */ |
AnnaBridge | 156:ff21514d8981 | 145 | #endif |
AnnaBridge | 156:ff21514d8981 | 146 | #if defined(PCNT_INPUT_S0PRSSEL_PRSCH9) |
AnnaBridge | 156:ff21514d8981 | 147 | pcntPRSCh9 = 9, /**< PRS channel 9. */ |
AnnaBridge | 156:ff21514d8981 | 148 | #endif |
AnnaBridge | 156:ff21514d8981 | 149 | #if defined(PCNT_INPUT_S0PRSSEL_PRSCH10) |
AnnaBridge | 156:ff21514d8981 | 150 | pcntPRSCh10 = 10, /**< PRS channel 10. */ |
AnnaBridge | 156:ff21514d8981 | 151 | #endif |
AnnaBridge | 156:ff21514d8981 | 152 | #if defined(PCNT_INPUT_S0PRSSEL_PRSCH11) |
AnnaBridge | 156:ff21514d8981 | 153 | pcntPRSCh11 = 11 /**< PRS channel 11. */ |
AnnaBridge | 156:ff21514d8981 | 154 | #endif |
AnnaBridge | 156:ff21514d8981 | 155 | } PCNT_PRSSel_TypeDef; |
AnnaBridge | 156:ff21514d8981 | 156 | |
AnnaBridge | 156:ff21514d8981 | 157 | /** PRS inputs of PCNT. */ |
Anna Bridge |
160:5571c4ff569f | 158 | typedef enum { |
AnnaBridge | 156:ff21514d8981 | 159 | pcntPRSInputS0 = 0, /** PRS input 0. */ |
AnnaBridge | 156:ff21514d8981 | 160 | pcntPRSInputS1 = 1 /** PRS input 1. */ |
AnnaBridge | 156:ff21514d8981 | 161 | } PCNT_PRSInput_TypeDef; |
AnnaBridge | 156:ff21514d8981 | 162 | #endif |
AnnaBridge | 156:ff21514d8981 | 163 | |
AnnaBridge | 156:ff21514d8981 | 164 | /******************************************************************************* |
AnnaBridge | 156:ff21514d8981 | 165 | ******************************* STRUCTS *********************************** |
AnnaBridge | 156:ff21514d8981 | 166 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 167 | |
AnnaBridge | 156:ff21514d8981 | 168 | /** Init structure. */ |
Anna Bridge |
160:5571c4ff569f | 169 | typedef struct { |
AnnaBridge | 156:ff21514d8981 | 170 | /** Mode to operate in. */ |
AnnaBridge | 156:ff21514d8981 | 171 | PCNT_Mode_TypeDef mode; |
AnnaBridge | 156:ff21514d8981 | 172 | |
AnnaBridge | 156:ff21514d8981 | 173 | /** Initial counter value (refer to reference manual for max value allowed). |
AnnaBridge | 156:ff21514d8981 | 174 | * Only used for #pcntModeOvsSingle (and possibly #pcntModeDisable) modes. |
AnnaBridge | 156:ff21514d8981 | 175 | * If using #pcntModeExtSingle or #pcntModeExtQuad modes, the counter |
AnnaBridge | 156:ff21514d8981 | 176 | * value is reset to HW reset value. */ |
AnnaBridge | 156:ff21514d8981 | 177 | uint32_t counter; |
AnnaBridge | 156:ff21514d8981 | 178 | |
AnnaBridge | 156:ff21514d8981 | 179 | /** Initial top value (refer to reference manual for max value allowed). |
AnnaBridge | 156:ff21514d8981 | 180 | * Only used for #pcntModeOvsSingle (and possibly #pcntModeDisable) modes. |
AnnaBridge | 156:ff21514d8981 | 181 | * If using #pcntModeExtSingle or #pcntModeExtQuad modes, the top |
AnnaBridge | 156:ff21514d8981 | 182 | * value is reset to HW reset value. */ |
AnnaBridge | 156:ff21514d8981 | 183 | uint32_t top; |
AnnaBridge | 156:ff21514d8981 | 184 | |
AnnaBridge | 156:ff21514d8981 | 185 | /** Polarity of incoming edge. |
AnnaBridge | 156:ff21514d8981 | 186 | * @li #pcntModeExtSingle mode - if false, positive edges are counted, |
AnnaBridge | 156:ff21514d8981 | 187 | * otherwise negative edges. |
AnnaBridge | 156:ff21514d8981 | 188 | * @li #pcntModeExtQuad mode - if true, counting direction is inverted. */ |
AnnaBridge | 156:ff21514d8981 | 189 | bool negEdge; |
AnnaBridge | 156:ff21514d8981 | 190 | |
AnnaBridge | 156:ff21514d8981 | 191 | /** Counting direction, only applicable for #pcntModeOvsSingle and |
AnnaBridge | 156:ff21514d8981 | 192 | * #pcntModeExtSingle modes. */ |
AnnaBridge | 156:ff21514d8981 | 193 | bool countDown; |
AnnaBridge | 156:ff21514d8981 | 194 | |
AnnaBridge | 156:ff21514d8981 | 195 | /** Enable filter, only available in #pcntModeOvs* modes. */ |
AnnaBridge | 156:ff21514d8981 | 196 | bool filter; |
AnnaBridge | 156:ff21514d8981 | 197 | |
AnnaBridge | 156:ff21514d8981 | 198 | #if defined(PCNT_CTRL_HYST) |
AnnaBridge | 156:ff21514d8981 | 199 | /** Set to true to enable hysteresis. When its enabled, the PCNT will always |
AnnaBridge | 156:ff21514d8981 | 200 | * overflow and underflow to TOP/2. */ |
AnnaBridge | 156:ff21514d8981 | 201 | bool hyst; |
AnnaBridge | 156:ff21514d8981 | 202 | |
AnnaBridge | 156:ff21514d8981 | 203 | /** Set to true to enable S1 to determine the direction of counting in |
AnnaBridge | 156:ff21514d8981 | 204 | * OVSSINGLE or EXTCLKSINGLE modes. @n |
AnnaBridge | 156:ff21514d8981 | 205 | * When S1 is high, the count direction is given by CNTDIR, and when S1 is |
AnnaBridge | 156:ff21514d8981 | 206 | * low, the count direction is the opposite. */ |
AnnaBridge | 156:ff21514d8981 | 207 | bool s1CntDir; |
AnnaBridge | 156:ff21514d8981 | 208 | |
AnnaBridge | 156:ff21514d8981 | 209 | /** Selects whether the regular counter responds to up-count events, |
AnnaBridge | 156:ff21514d8981 | 210 | * down-count events, both or none. */ |
AnnaBridge | 156:ff21514d8981 | 211 | PCNT_CntEvent_TypeDef cntEvent; |
AnnaBridge | 156:ff21514d8981 | 212 | |
AnnaBridge | 156:ff21514d8981 | 213 | /** Selects whether the auxiliary counter responds to up-count events, |
AnnaBridge | 156:ff21514d8981 | 214 | * down-count events, both or none. */ |
AnnaBridge | 156:ff21514d8981 | 215 | PCNT_CntEvent_TypeDef auxCntEvent; |
AnnaBridge | 156:ff21514d8981 | 216 | |
AnnaBridge | 156:ff21514d8981 | 217 | /** Select PRS channel as input to S0IN in PCNTx_INPUT register. */ |
AnnaBridge | 156:ff21514d8981 | 218 | PCNT_PRSSel_TypeDef s0PRS; |
AnnaBridge | 156:ff21514d8981 | 219 | |
AnnaBridge | 156:ff21514d8981 | 220 | /** Select PRS channel as input to S1IN in PCNTx_INPUT register. */ |
AnnaBridge | 156:ff21514d8981 | 221 | PCNT_PRSSel_TypeDef s1PRS; |
AnnaBridge | 156:ff21514d8981 | 222 | #endif |
AnnaBridge | 156:ff21514d8981 | 223 | } PCNT_Init_TypeDef; |
AnnaBridge | 156:ff21514d8981 | 224 | |
AnnaBridge | 156:ff21514d8981 | 225 | #if !defined(PCNT_CTRL_HYST) |
AnnaBridge | 156:ff21514d8981 | 226 | /** Default config for PCNT init structure. */ |
AnnaBridge | 156:ff21514d8981 | 227 | #define PCNT_INIT_DEFAULT \ |
Anna Bridge |
160:5571c4ff569f | 228 | { \ |
Anna Bridge |
160:5571c4ff569f | 229 | pcntModeDisable, /* Disabled by default. */ \ |
Anna Bridge |
160:5571c4ff569f | 230 | _PCNT_CNT_RESETVALUE, /* Default counter HW reset value. */ \ |
Anna Bridge |
160:5571c4ff569f | 231 | _PCNT_TOP_RESETVALUE, /* Default counter HW reset value. */ \ |
Anna Bridge |
160:5571c4ff569f | 232 | false, /* Use positive edge. */ \ |
Anna Bridge |
160:5571c4ff569f | 233 | false, /* Up-counting. */ \ |
Anna Bridge |
160:5571c4ff569f | 234 | false /* Filter disabled. */ \ |
Anna Bridge |
160:5571c4ff569f | 235 | } |
AnnaBridge | 156:ff21514d8981 | 236 | #else |
AnnaBridge | 156:ff21514d8981 | 237 | /** Default config for PCNT init structure. */ |
AnnaBridge | 156:ff21514d8981 | 238 | #define PCNT_INIT_DEFAULT \ |
Anna Bridge |
160:5571c4ff569f | 239 | { \ |
Anna Bridge |
160:5571c4ff569f | 240 | pcntModeDisable, /* Disabled by default. */ \ |
Anna Bridge |
160:5571c4ff569f | 241 | _PCNT_CNT_RESETVALUE, /* Default counter HW reset value. */ \ |
Anna Bridge |
160:5571c4ff569f | 242 | _PCNT_TOP_RESETVALUE, /* Default counter HW reset value. */ \ |
Anna Bridge |
160:5571c4ff569f | 243 | false, /* Use positive edge. */ \ |
Anna Bridge |
160:5571c4ff569f | 244 | false, /* Up-counting. */ \ |
Anna Bridge |
160:5571c4ff569f | 245 | false, /* Filter disabled. */ \ |
Anna Bridge |
160:5571c4ff569f | 246 | false, /* Hysteresis disabled. */ \ |
Anna Bridge |
160:5571c4ff569f | 247 | true, /* Counter direction is given by CNTDIR. */ \ |
Anna Bridge |
160:5571c4ff569f | 248 | pcntCntEventUp, /* Regular counter counts up on upcount events. */ \ |
Anna Bridge |
160:5571c4ff569f | 249 | pcntCntEventNone, /* Auxiliary counter doesn't respond to events. */ \ |
Anna Bridge |
160:5571c4ff569f | 250 | pcntPRSCh0, /* PRS channel 0 selected as S0IN. */ \ |
Anna Bridge |
160:5571c4ff569f | 251 | pcntPRSCh0 /* PRS channel 0 selected as S1IN. */ \ |
Anna Bridge |
160:5571c4ff569f | 252 | } |
AnnaBridge | 156:ff21514d8981 | 253 | #endif |
AnnaBridge | 156:ff21514d8981 | 254 | |
AnnaBridge | 156:ff21514d8981 | 255 | #if defined(PCNT_OVSCFG_FILTLEN_DEFAULT) |
AnnaBridge | 156:ff21514d8981 | 256 | /** Filter initialization structure */ |
Anna Bridge |
160:5571c4ff569f | 257 | typedef struct { |
AnnaBridge | 156:ff21514d8981 | 258 | /** Used only in OVSINGLE and OVSQUAD1X-4X modes. To use this, enable the filter through |
AnnaBridge | 156:ff21514d8981 | 259 | * setting filter to true during PCNT_Init(). Filter length = (filtLen + 5) LFACLK cycles. */ |
AnnaBridge | 156:ff21514d8981 | 260 | uint8_t filtLen; |
AnnaBridge | 156:ff21514d8981 | 261 | |
AnnaBridge | 156:ff21514d8981 | 262 | /** When set, removes flutter from Quaddecoder inputs S0IN and S1IN. |
AnnaBridge | 156:ff21514d8981 | 263 | * Available only in OVSQUAD1X-4X modes. */ |
AnnaBridge | 156:ff21514d8981 | 264 | bool flutterrm; |
AnnaBridge | 156:ff21514d8981 | 265 | } PCNT_Filter_TypeDef; |
AnnaBridge | 156:ff21514d8981 | 266 | #endif |
AnnaBridge | 156:ff21514d8981 | 267 | |
AnnaBridge | 156:ff21514d8981 | 268 | /** Default config for PCNT init structure. */ |
AnnaBridge | 156:ff21514d8981 | 269 | #if defined(PCNT_OVSCFG_FILTLEN_DEFAULT) |
Anna Bridge |
160:5571c4ff569f | 270 | #define PCNT_FILTER_DEFAULT \ |
Anna Bridge |
160:5571c4ff569f | 271 | { \ |
Anna Bridge |
160:5571c4ff569f | 272 | 0, /* Default length is 5 LFACLK cycles */ \ |
Anna Bridge |
160:5571c4ff569f | 273 | false /* No flutter removal */ \ |
Anna Bridge |
160:5571c4ff569f | 274 | } |
AnnaBridge | 156:ff21514d8981 | 275 | #endif |
AnnaBridge | 156:ff21514d8981 | 276 | |
AnnaBridge | 156:ff21514d8981 | 277 | #if defined(PCNT_CTRL_TCCMODE_DEFAULT) |
AnnaBridge | 156:ff21514d8981 | 278 | |
AnnaBridge | 156:ff21514d8981 | 279 | /** Modes for Triggered Compare and Clear module */ |
Anna Bridge |
160:5571c4ff569f | 280 | typedef enum { |
AnnaBridge | 156:ff21514d8981 | 281 | /** Triggered compare and clear not enabled. */ |
AnnaBridge | 156:ff21514d8981 | 282 | tccModeDisabled = _PCNT_CTRL_TCCMODE_DISABLED, |
AnnaBridge | 156:ff21514d8981 | 283 | |
AnnaBridge | 156:ff21514d8981 | 284 | /** Compare and clear performed on each (optionally prescaled) LFA clock cycle. */ |
AnnaBridge | 156:ff21514d8981 | 285 | tccModeLFA = _PCNT_CTRL_TCCMODE_LFA, |
AnnaBridge | 156:ff21514d8981 | 286 | |
AnnaBridge | 156:ff21514d8981 | 287 | /** Compare and clear performed on PRS edges. Polarity defined by prsPolarity. */ |
AnnaBridge | 156:ff21514d8981 | 288 | tccModePRS = _PCNT_CTRL_TCCMODE_PRS |
AnnaBridge | 156:ff21514d8981 | 289 | } PCNT_TCCMode_TypeDef; |
AnnaBridge | 156:ff21514d8981 | 290 | |
AnnaBridge | 156:ff21514d8981 | 291 | /** Prescaler values for LFA compare and clear events. Only has effect when TCC mode is LFA. */ |
Anna Bridge |
160:5571c4ff569f | 292 | typedef enum { |
AnnaBridge | 156:ff21514d8981 | 293 | /** Compare and clear event each LFA cycle. */ |
AnnaBridge | 156:ff21514d8981 | 294 | tccPrescDiv1 = _PCNT_CTRL_TCCPRESC_DIV1, |
AnnaBridge | 156:ff21514d8981 | 295 | |
AnnaBridge | 156:ff21514d8981 | 296 | /** Compare and clear event every other LFA cycle. */ |
AnnaBridge | 156:ff21514d8981 | 297 | tccPrescDiv2 = _PCNT_CTRL_TCCPRESC_DIV2, |
AnnaBridge | 156:ff21514d8981 | 298 | |
AnnaBridge | 156:ff21514d8981 | 299 | /** Compare and clear event every 4th LFA cycle. */ |
AnnaBridge | 156:ff21514d8981 | 300 | tccPrescDiv4 = _PCNT_CTRL_TCCPRESC_DIV4, |
AnnaBridge | 156:ff21514d8981 | 301 | |
AnnaBridge | 156:ff21514d8981 | 302 | /** Compare and clear event every 8th LFA cycle. */ |
AnnaBridge | 156:ff21514d8981 | 303 | tccPrescDiv8 = _PCNT_CTRL_TCCPRESC_DIV8 |
AnnaBridge | 156:ff21514d8981 | 304 | } PCNT_TCCPresc_Typedef; |
AnnaBridge | 156:ff21514d8981 | 305 | |
AnnaBridge | 156:ff21514d8981 | 306 | /** Compare modes for TCC module */ |
Anna Bridge |
160:5571c4ff569f | 307 | typedef enum { |
AnnaBridge | 156:ff21514d8981 | 308 | /** Compare match if PCNT_CNT is less than, or equal to PCNT_TOP. */ |
AnnaBridge | 156:ff21514d8981 | 309 | tccCompLTOE = _PCNT_CTRL_TCCCOMP_LTOE, |
AnnaBridge | 156:ff21514d8981 | 310 | |
AnnaBridge | 156:ff21514d8981 | 311 | /** Compare match if PCNT_CNT is greater than or equal to PCNT_TOP. */ |
AnnaBridge | 156:ff21514d8981 | 312 | tccCompGTOE = _PCNT_CTRL_TCCCOMP_GTOE, |
AnnaBridge | 156:ff21514d8981 | 313 | |
AnnaBridge | 156:ff21514d8981 | 314 | /** Compare match if PCNT_CNT is less than, or equal to PCNT_TOP[15:8]], and greater |
AnnaBridge | 156:ff21514d8981 | 315 | * than, or equal to PCNT_TOP[7:0]. */ |
AnnaBridge | 156:ff21514d8981 | 316 | tccCompRange = _PCNT_CTRL_TCCCOMP_RANGE |
AnnaBridge | 156:ff21514d8981 | 317 | } PCNT_TCCComp_Typedef; |
AnnaBridge | 156:ff21514d8981 | 318 | |
AnnaBridge | 156:ff21514d8981 | 319 | /** TCC initialization structure */ |
Anna Bridge |
160:5571c4ff569f | 320 | typedef struct { |
AnnaBridge | 156:ff21514d8981 | 321 | /** Mode to operate in. */ |
AnnaBridge | 156:ff21514d8981 | 322 | PCNT_TCCMode_TypeDef mode; |
AnnaBridge | 156:ff21514d8981 | 323 | |
AnnaBridge | 156:ff21514d8981 | 324 | /** Prescaler value for LFACLK in LFA mode */ |
AnnaBridge | 156:ff21514d8981 | 325 | PCNT_TCCPresc_Typedef prescaler; |
AnnaBridge | 156:ff21514d8981 | 326 | |
AnnaBridge | 156:ff21514d8981 | 327 | /** Choose the event that will trigger a clear */ |
AnnaBridge | 156:ff21514d8981 | 328 | PCNT_TCCComp_Typedef compare; |
AnnaBridge | 156:ff21514d8981 | 329 | |
AnnaBridge | 156:ff21514d8981 | 330 | /** PRS input to TCC module, either for gating the PCNT clock, triggering the TCC comparison, or both. */ |
AnnaBridge | 156:ff21514d8981 | 331 | PCNT_PRSSel_TypeDef tccPRS; |
AnnaBridge | 156:ff21514d8981 | 332 | |
AnnaBridge | 156:ff21514d8981 | 333 | /** TCC PRS input polarity. @n |
AnnaBridge | 156:ff21514d8981 | 334 | * False = Rising edge for comparison trigger, and PCNT clock gated when the PRS signal is high. @n |
AnnaBridge | 156:ff21514d8981 | 335 | * True = Falling edge for comparison trigger, and PCNT clock gated when the PRS signal is low. */ |
AnnaBridge | 156:ff21514d8981 | 336 | bool prsPolarity; |
AnnaBridge | 156:ff21514d8981 | 337 | |
AnnaBridge | 156:ff21514d8981 | 338 | /** Enable gating PCNT input clock through TCC PRS signal. |
AnnaBridge | 156:ff21514d8981 | 339 | * Polarity selection is done through prsPolarity. */ |
AnnaBridge | 156:ff21514d8981 | 340 | bool prsGateEnable; |
AnnaBridge | 156:ff21514d8981 | 341 | } PCNT_TCC_TypeDef; |
AnnaBridge | 156:ff21514d8981 | 342 | |
Anna Bridge |
160:5571c4ff569f | 343 | #define PCNT_TCC_DEFAULT \ |
Anna Bridge |
160:5571c4ff569f | 344 | { \ |
Anna Bridge |
160:5571c4ff569f | 345 | tccModeDisabled, /* Disabled by default */ \ |
Anna Bridge |
160:5571c4ff569f | 346 | tccPrescDiv1, /* Do not prescale LFA clock in LFA mode */ \ |
Anna Bridge |
160:5571c4ff569f | 347 | tccCompLTOE, /* Clear when CNT <= TOP */ \ |
Anna Bridge |
160:5571c4ff569f | 348 | pcntPRSCh0, /* Select PRS channel 0 as input to TCC */ \ |
Anna Bridge |
160:5571c4ff569f | 349 | false, /* PRS polarity is rising edge, and gate when 1 */ \ |
Anna Bridge |
160:5571c4ff569f | 350 | false /* Do not gate the PCNT counter input */ \ |
Anna Bridge |
160:5571c4ff569f | 351 | } |
AnnaBridge | 156:ff21514d8981 | 352 | |
AnnaBridge | 156:ff21514d8981 | 353 | #endif |
AnnaBridge | 156:ff21514d8981 | 354 | /* defined(PCNT_CTRL_TCCMODE_DEFAULT) */ |
AnnaBridge | 156:ff21514d8981 | 355 | |
AnnaBridge | 156:ff21514d8981 | 356 | /******************************************************************************* |
AnnaBridge | 156:ff21514d8981 | 357 | ***************************** PROTOTYPES ********************************** |
AnnaBridge | 156:ff21514d8981 | 358 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 359 | |
AnnaBridge | 156:ff21514d8981 | 360 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 361 | * @brief |
AnnaBridge | 156:ff21514d8981 | 362 | * Get pulse counter value. |
AnnaBridge | 156:ff21514d8981 | 363 | * |
AnnaBridge | 156:ff21514d8981 | 364 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 365 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 366 | * |
AnnaBridge | 156:ff21514d8981 | 367 | * @return |
AnnaBridge | 156:ff21514d8981 | 368 | * Current pulse counter value. |
AnnaBridge | 156:ff21514d8981 | 369 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 370 | __STATIC_INLINE uint32_t PCNT_CounterGet(PCNT_TypeDef *pcnt) |
AnnaBridge | 156:ff21514d8981 | 371 | { |
AnnaBridge | 156:ff21514d8981 | 372 | return pcnt->CNT; |
AnnaBridge | 156:ff21514d8981 | 373 | } |
AnnaBridge | 156:ff21514d8981 | 374 | |
AnnaBridge | 156:ff21514d8981 | 375 | #if defined(_PCNT_AUXCNT_MASK) |
AnnaBridge | 156:ff21514d8981 | 376 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 377 | * @brief |
AnnaBridge | 156:ff21514d8981 | 378 | * Get auxiliary counter value. |
AnnaBridge | 156:ff21514d8981 | 379 | * |
AnnaBridge | 156:ff21514d8981 | 380 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 381 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 382 | * |
AnnaBridge | 156:ff21514d8981 | 383 | * @return |
AnnaBridge | 156:ff21514d8981 | 384 | * Current auxiliary counter value. |
AnnaBridge | 156:ff21514d8981 | 385 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 386 | __STATIC_INLINE uint32_t PCNT_AuxCounterGet(PCNT_TypeDef *pcnt) |
AnnaBridge | 156:ff21514d8981 | 387 | { |
AnnaBridge | 156:ff21514d8981 | 388 | return pcnt->AUXCNT; |
AnnaBridge | 156:ff21514d8981 | 389 | } |
AnnaBridge | 156:ff21514d8981 | 390 | #endif |
AnnaBridge | 156:ff21514d8981 | 391 | |
AnnaBridge | 156:ff21514d8981 | 392 | void PCNT_CounterReset(PCNT_TypeDef *pcnt); |
AnnaBridge | 156:ff21514d8981 | 393 | void PCNT_CounterTopSet(PCNT_TypeDef *pcnt, uint32_t count, uint32_t top); |
AnnaBridge | 156:ff21514d8981 | 394 | |
AnnaBridge | 156:ff21514d8981 | 395 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 396 | * @brief |
AnnaBridge | 156:ff21514d8981 | 397 | * Set counter value. |
AnnaBridge | 156:ff21514d8981 | 398 | * |
AnnaBridge | 156:ff21514d8981 | 399 | * @details |
AnnaBridge | 156:ff21514d8981 | 400 | * The pulse counter is disabled while changing counter value, and reenabled |
AnnaBridge | 156:ff21514d8981 | 401 | * (if originally enabled) when counter value has been set. |
AnnaBridge | 156:ff21514d8981 | 402 | * |
AnnaBridge | 156:ff21514d8981 | 403 | * @note |
AnnaBridge | 156:ff21514d8981 | 404 | * This function will stall until synchronization to low frequency domain is |
AnnaBridge | 156:ff21514d8981 | 405 | * completed. For that reason, it should normally not be used when using |
AnnaBridge | 156:ff21514d8981 | 406 | * an external clock to clock the PCNT module, since stall time may be |
AnnaBridge | 156:ff21514d8981 | 407 | * undefined in that case. The counter should normally only be set when |
AnnaBridge | 156:ff21514d8981 | 408 | * operating in (or about to enable) #pcntModeOvsSingle mode. |
AnnaBridge | 156:ff21514d8981 | 409 | * |
AnnaBridge | 156:ff21514d8981 | 410 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 411 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 412 | * |
AnnaBridge | 156:ff21514d8981 | 413 | * @param[in] count |
AnnaBridge | 156:ff21514d8981 | 414 | * Value to set in counter register. |
AnnaBridge | 156:ff21514d8981 | 415 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 416 | __STATIC_INLINE void PCNT_CounterSet(PCNT_TypeDef *pcnt, uint32_t count) |
AnnaBridge | 156:ff21514d8981 | 417 | { |
AnnaBridge | 156:ff21514d8981 | 418 | PCNT_CounterTopSet(pcnt, count, pcnt->TOP); |
AnnaBridge | 156:ff21514d8981 | 419 | } |
AnnaBridge | 156:ff21514d8981 | 420 | |
AnnaBridge | 156:ff21514d8981 | 421 | void PCNT_Enable(PCNT_TypeDef *pcnt, PCNT_Mode_TypeDef mode); |
AnnaBridge | 156:ff21514d8981 | 422 | void PCNT_FreezeEnable(PCNT_TypeDef *pcnt, bool enable); |
AnnaBridge | 156:ff21514d8981 | 423 | void PCNT_Init(PCNT_TypeDef *pcnt, const PCNT_Init_TypeDef *init); |
AnnaBridge | 156:ff21514d8981 | 424 | |
AnnaBridge | 156:ff21514d8981 | 425 | #if defined(PCNT_OVSCFG_FILTLEN_DEFAULT) |
AnnaBridge | 156:ff21514d8981 | 426 | void PCNT_FilterConfiguration(PCNT_TypeDef *pcnt, const PCNT_Filter_TypeDef *config, bool enable); |
AnnaBridge | 156:ff21514d8981 | 427 | #endif |
AnnaBridge | 156:ff21514d8981 | 428 | |
AnnaBridge | 156:ff21514d8981 | 429 | #if defined(_PCNT_INPUT_MASK) |
AnnaBridge | 156:ff21514d8981 | 430 | void PCNT_PRSInputEnable(PCNT_TypeDef *pcnt, |
AnnaBridge | 156:ff21514d8981 | 431 | PCNT_PRSInput_TypeDef prsInput, |
AnnaBridge | 156:ff21514d8981 | 432 | bool enable); |
AnnaBridge | 156:ff21514d8981 | 433 | #endif |
AnnaBridge | 156:ff21514d8981 | 434 | |
AnnaBridge | 156:ff21514d8981 | 435 | #if defined(PCNT_CTRL_TCCMODE_DEFAULT) |
AnnaBridge | 156:ff21514d8981 | 436 | void PCNT_TCCConfiguration(PCNT_TypeDef *pcnt, const PCNT_TCC_TypeDef *config); |
AnnaBridge | 156:ff21514d8981 | 437 | #endif |
AnnaBridge | 156:ff21514d8981 | 438 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 439 | * @brief |
AnnaBridge | 156:ff21514d8981 | 440 | * Clear one or more pending PCNT interrupts. |
AnnaBridge | 156:ff21514d8981 | 441 | * |
AnnaBridge | 156:ff21514d8981 | 442 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 443 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 444 | * |
AnnaBridge | 156:ff21514d8981 | 445 | * @param[in] flags |
AnnaBridge | 156:ff21514d8981 | 446 | * Pending PCNT interrupt source to clear. Use a bitwise logic OR combination |
AnnaBridge | 156:ff21514d8981 | 447 | * of valid interrupt flags for the PCNT module (PCNT_IF_nnn). |
AnnaBridge | 156:ff21514d8981 | 448 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 449 | __STATIC_INLINE void PCNT_IntClear(PCNT_TypeDef *pcnt, uint32_t flags) |
AnnaBridge | 156:ff21514d8981 | 450 | { |
AnnaBridge | 156:ff21514d8981 | 451 | pcnt->IFC = flags; |
AnnaBridge | 156:ff21514d8981 | 452 | } |
AnnaBridge | 156:ff21514d8981 | 453 | |
AnnaBridge | 156:ff21514d8981 | 454 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 455 | * @brief |
AnnaBridge | 156:ff21514d8981 | 456 | * Disable one or more PCNT interrupts. |
AnnaBridge | 156:ff21514d8981 | 457 | * |
AnnaBridge | 156:ff21514d8981 | 458 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 459 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 460 | * |
AnnaBridge | 156:ff21514d8981 | 461 | * @param[in] flags |
AnnaBridge | 156:ff21514d8981 | 462 | * PCNT interrupt sources to disable. Use a bitwise logic OR combination of |
AnnaBridge | 156:ff21514d8981 | 463 | * valid interrupt flags for the PCNT module (PCNT_IF_nnn). |
AnnaBridge | 156:ff21514d8981 | 464 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 465 | __STATIC_INLINE void PCNT_IntDisable(PCNT_TypeDef *pcnt, uint32_t flags) |
AnnaBridge | 156:ff21514d8981 | 466 | { |
AnnaBridge | 156:ff21514d8981 | 467 | pcnt->IEN &= ~flags; |
AnnaBridge | 156:ff21514d8981 | 468 | } |
AnnaBridge | 156:ff21514d8981 | 469 | |
AnnaBridge | 156:ff21514d8981 | 470 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 471 | * @brief |
AnnaBridge | 156:ff21514d8981 | 472 | * Enable one or more PCNT interrupts. |
AnnaBridge | 156:ff21514d8981 | 473 | * |
AnnaBridge | 156:ff21514d8981 | 474 | * @note |
AnnaBridge | 156:ff21514d8981 | 475 | * Depending on the use, a pending interrupt may already be set prior to |
AnnaBridge | 156:ff21514d8981 | 476 | * enabling the interrupt. Consider using PCNT_IntClear() prior to enabling |
AnnaBridge | 156:ff21514d8981 | 477 | * if such a pending interrupt should be ignored. |
AnnaBridge | 156:ff21514d8981 | 478 | * |
AnnaBridge | 156:ff21514d8981 | 479 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 480 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 481 | * |
AnnaBridge | 156:ff21514d8981 | 482 | * @param[in] flags |
AnnaBridge | 156:ff21514d8981 | 483 | * PCNT interrupt sources to enable. Use a bitwise logic OR combination of |
AnnaBridge | 156:ff21514d8981 | 484 | * valid interrupt flags for the PCNT module (PCNT_IF_nnn). |
AnnaBridge | 156:ff21514d8981 | 485 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 486 | __STATIC_INLINE void PCNT_IntEnable(PCNT_TypeDef *pcnt, uint32_t flags) |
AnnaBridge | 156:ff21514d8981 | 487 | { |
AnnaBridge | 156:ff21514d8981 | 488 | pcnt->IEN |= flags; |
AnnaBridge | 156:ff21514d8981 | 489 | } |
AnnaBridge | 156:ff21514d8981 | 490 | |
AnnaBridge | 156:ff21514d8981 | 491 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 492 | * @brief |
AnnaBridge | 156:ff21514d8981 | 493 | * Get pending PCNT interrupt flags. |
AnnaBridge | 156:ff21514d8981 | 494 | * |
AnnaBridge | 156:ff21514d8981 | 495 | * @note |
AnnaBridge | 156:ff21514d8981 | 496 | * The event bits are not cleared by the use of this function. |
AnnaBridge | 156:ff21514d8981 | 497 | * |
AnnaBridge | 156:ff21514d8981 | 498 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 499 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 500 | * |
AnnaBridge | 156:ff21514d8981 | 501 | * @return |
AnnaBridge | 156:ff21514d8981 | 502 | * PCNT interrupt sources pending. A bitwise logic OR combination of valid |
AnnaBridge | 156:ff21514d8981 | 503 | * interrupt flags for the PCNT module (PCNT_IF_nnn). |
AnnaBridge | 156:ff21514d8981 | 504 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 505 | __STATIC_INLINE uint32_t PCNT_IntGet(PCNT_TypeDef *pcnt) |
AnnaBridge | 156:ff21514d8981 | 506 | { |
AnnaBridge | 156:ff21514d8981 | 507 | return pcnt->IF; |
AnnaBridge | 156:ff21514d8981 | 508 | } |
AnnaBridge | 156:ff21514d8981 | 509 | |
AnnaBridge | 156:ff21514d8981 | 510 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 511 | * @brief |
AnnaBridge | 156:ff21514d8981 | 512 | * Get enabled and pending PCNT interrupt flags. |
AnnaBridge | 156:ff21514d8981 | 513 | * |
AnnaBridge | 156:ff21514d8981 | 514 | * @details |
AnnaBridge | 156:ff21514d8981 | 515 | * Useful for handling more interrupt sources in the same interrupt handler. |
AnnaBridge | 156:ff21514d8981 | 516 | * |
AnnaBridge | 156:ff21514d8981 | 517 | * @note |
AnnaBridge | 156:ff21514d8981 | 518 | * The event bits are not cleared by the use of this function. |
AnnaBridge | 156:ff21514d8981 | 519 | * |
AnnaBridge | 156:ff21514d8981 | 520 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 521 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 522 | * |
AnnaBridge | 156:ff21514d8981 | 523 | * @return |
AnnaBridge | 156:ff21514d8981 | 524 | * Pending and enabled PCNT interrupt sources. |
AnnaBridge | 156:ff21514d8981 | 525 | * The return value is the bitwise AND combination of |
AnnaBridge | 156:ff21514d8981 | 526 | * - the OR combination of enabled interrupt sources in PCNT_IEN_nnn |
AnnaBridge | 156:ff21514d8981 | 527 | * register (PCNT_IEN_nnn) and |
AnnaBridge | 156:ff21514d8981 | 528 | * - the OR combination of valid interrupt flags of the PCNT module |
AnnaBridge | 156:ff21514d8981 | 529 | * (PCNT_IF_nnn). |
AnnaBridge | 156:ff21514d8981 | 530 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 531 | __STATIC_INLINE uint32_t PCNT_IntGetEnabled(PCNT_TypeDef *pcnt) |
AnnaBridge | 156:ff21514d8981 | 532 | { |
AnnaBridge | 156:ff21514d8981 | 533 | uint32_t ien; |
AnnaBridge | 156:ff21514d8981 | 534 | |
AnnaBridge | 156:ff21514d8981 | 535 | /* Store pcnt->IEN in temporary variable in order to define explicit order |
AnnaBridge | 156:ff21514d8981 | 536 | * of volatile accesses. */ |
AnnaBridge | 156:ff21514d8981 | 537 | ien = pcnt->IEN; |
AnnaBridge | 156:ff21514d8981 | 538 | |
AnnaBridge | 156:ff21514d8981 | 539 | /* Bitwise AND of pending and enabled interrupts */ |
AnnaBridge | 156:ff21514d8981 | 540 | return pcnt->IF & ien; |
AnnaBridge | 156:ff21514d8981 | 541 | } |
AnnaBridge | 156:ff21514d8981 | 542 | |
AnnaBridge | 156:ff21514d8981 | 543 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 544 | * @brief |
AnnaBridge | 156:ff21514d8981 | 545 | * Set one or more pending PCNT interrupts from SW. |
AnnaBridge | 156:ff21514d8981 | 546 | * |
AnnaBridge | 156:ff21514d8981 | 547 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 548 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 549 | * |
AnnaBridge | 156:ff21514d8981 | 550 | * @param[in] flags |
AnnaBridge | 156:ff21514d8981 | 551 | * PCNT interrupt sources to set to pending. Use a bitwise logic OR combination |
AnnaBridge | 156:ff21514d8981 | 552 | * of valid interrupt flags for the PCNT module (PCNT_IF_nnn). |
AnnaBridge | 156:ff21514d8981 | 553 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 554 | __STATIC_INLINE void PCNT_IntSet(PCNT_TypeDef *pcnt, uint32_t flags) |
AnnaBridge | 156:ff21514d8981 | 555 | { |
AnnaBridge | 156:ff21514d8981 | 556 | pcnt->IFS = flags; |
AnnaBridge | 156:ff21514d8981 | 557 | } |
AnnaBridge | 156:ff21514d8981 | 558 | |
AnnaBridge | 156:ff21514d8981 | 559 | void PCNT_Reset(PCNT_TypeDef *pcnt); |
AnnaBridge | 156:ff21514d8981 | 560 | |
AnnaBridge | 156:ff21514d8981 | 561 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 562 | * @brief |
AnnaBridge | 156:ff21514d8981 | 563 | * Get pulse counter top buffer value. |
AnnaBridge | 156:ff21514d8981 | 564 | * |
AnnaBridge | 156:ff21514d8981 | 565 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 566 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 567 | * |
AnnaBridge | 156:ff21514d8981 | 568 | * @return |
AnnaBridge | 156:ff21514d8981 | 569 | * Current pulse counter top buffer value. |
AnnaBridge | 156:ff21514d8981 | 570 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 571 | __STATIC_INLINE uint32_t PCNT_TopBufferGet(PCNT_TypeDef *pcnt) |
AnnaBridge | 156:ff21514d8981 | 572 | { |
AnnaBridge | 156:ff21514d8981 | 573 | return pcnt->TOPB; |
AnnaBridge | 156:ff21514d8981 | 574 | } |
AnnaBridge | 156:ff21514d8981 | 575 | |
AnnaBridge | 156:ff21514d8981 | 576 | void PCNT_TopBufferSet(PCNT_TypeDef *pcnt, uint32_t val); |
AnnaBridge | 156:ff21514d8981 | 577 | |
AnnaBridge | 156:ff21514d8981 | 578 | /***************************************************************************//** |
AnnaBridge | 156:ff21514d8981 | 579 | * @brief |
AnnaBridge | 156:ff21514d8981 | 580 | * Get pulse counter top value. |
AnnaBridge | 156:ff21514d8981 | 581 | * |
AnnaBridge | 156:ff21514d8981 | 582 | * @param[in] pcnt |
AnnaBridge | 156:ff21514d8981 | 583 | * Pointer to PCNT peripheral register block. |
AnnaBridge | 156:ff21514d8981 | 584 | * |
AnnaBridge | 156:ff21514d8981 | 585 | * @return |
AnnaBridge | 156:ff21514d8981 | 586 | * Current pulse counter top value. |
AnnaBridge | 156:ff21514d8981 | 587 | ******************************************************************************/ |
AnnaBridge | 156:ff21514d8981 | 588 | __STATIC_INLINE uint32_t PCNT_TopGet(PCNT_TypeDef *pcnt) |
AnnaBridge | 156:ff21514d8981 | 589 | { |
AnnaBridge | 156:ff21514d8981 | 590 | return pcnt->TOP; |
AnnaBridge | 156:ff21514d8981 | 591 | } |
AnnaBridge | 156:ff21514d8981 | 592 | |
AnnaBridge | 156:ff21514d8981 | 593 | void PCNT_TopSet(PCNT_TypeDef *pcnt, uint32_t val); |
AnnaBridge | 156:ff21514d8981 | 594 | |
AnnaBridge | 156:ff21514d8981 | 595 | /** @} (end addtogroup PCNT) */ |
AnnaBridge | 156:ff21514d8981 | 596 | /** @} (end addtogroup emlib) */ |
AnnaBridge | 156:ff21514d8981 | 597 | |
AnnaBridge | 156:ff21514d8981 | 598 | #ifdef __cplusplus |
AnnaBridge | 156:ff21514d8981 | 599 | } |
AnnaBridge | 156:ff21514d8981 | 600 | #endif |
AnnaBridge | 156:ff21514d8981 | 601 | |
AnnaBridge | 156:ff21514d8981 | 602 | #endif /* defined(PCNT_COUNT) && (PCNT_COUNT > 0) */ |
AnnaBridge | 156:ff21514d8981 | 603 | #endif /* EM_PCNT_H */ |