Igor Skochinsky
NXP's driver library for LPC17xx, ported to mbed's online compiler. Not tested! I had to fix a lot of warings and found a couple of pretty obvious bugs, so the chances are there are more. Original: http://ics.nxp.com/support/documents/microcontrollers/zip/lpc17xx.cmsis.driver.library.zip
source/lpc17xx_timer.c@0:1063a091a062, 2010-02-17 (annotated)
- Committer:
- igorsk
- Date:
- Wed Feb 17 16:22:39 2010 +0000
- Revision:
- 0:1063a091a062
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| igorsk | 0:1063a091a062 | 1 | /** |
| igorsk | 0:1063a091a062 | 2 | * @file : lpc17xx_timer.c |
| igorsk | 0:1063a091a062 | 3 | * @brief : Contains all functions support for Timer firmware library on LPC17xx |
| igorsk | 0:1063a091a062 | 4 | * @version : 1.0 |
| igorsk | 0:1063a091a062 | 5 | * @date : 14. April. 2009 |
| igorsk | 0:1063a091a062 | 6 | * @author : HieuNguyen |
| igorsk | 0:1063a091a062 | 7 | ************************************************************************** |
| igorsk | 0:1063a091a062 | 8 | * Software that is described herein is for illustrative purposes only |
| igorsk | 0:1063a091a062 | 9 | * which provides customers with programming information regarding the |
| igorsk | 0:1063a091a062 | 10 | * products. This software is supplied "AS IS" without any warranties. |
| igorsk | 0:1063a091a062 | 11 | * NXP Semiconductors assumes no responsibility or liability for the |
| igorsk | 0:1063a091a062 | 12 | * use of the software, conveys no license or title under any patent, |
| igorsk | 0:1063a091a062 | 13 | * copyright, or mask work right to the product. NXP Semiconductors |
| igorsk | 0:1063a091a062 | 14 | * reserves the right to make changes in the software without |
| igorsk | 0:1063a091a062 | 15 | * notification. NXP Semiconductors also make no representation or |
| igorsk | 0:1063a091a062 | 16 | * warranty that such application will be suitable for the specified |
| igorsk | 0:1063a091a062 | 17 | * use without further testing or modification. |
| igorsk | 0:1063a091a062 | 18 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 19 | |
| igorsk | 0:1063a091a062 | 20 | /* Peripheral group ----------------------------------------------------------- */ |
| igorsk | 0:1063a091a062 | 21 | /** @addtogroup TIM |
| igorsk | 0:1063a091a062 | 22 | * @{ |
| igorsk | 0:1063a091a062 | 23 | */ |
| igorsk | 0:1063a091a062 | 24 | |
| igorsk | 0:1063a091a062 | 25 | /* Includes ------------------------------------------------------------------- */ |
| igorsk | 0:1063a091a062 | 26 | #include "lpc17xx_timer.h" |
| igorsk | 0:1063a091a062 | 27 | #include "lpc17xx_clkpwr.h" |
| igorsk | 0:1063a091a062 | 28 | #include "lpc17xx_pinsel.h" |
| igorsk | 0:1063a091a062 | 29 | |
| igorsk | 0:1063a091a062 | 30 | /* If this source file built with example, the LPC17xx FW library configuration |
| igorsk | 0:1063a091a062 | 31 | * file in each example directory ("lpc17xx_libcfg.h") must be included, |
| igorsk | 0:1063a091a062 | 32 | * otherwise the default FW library configuration file must be included instead |
| igorsk | 0:1063a091a062 | 33 | */ |
| igorsk | 0:1063a091a062 | 34 | #ifdef __BUILD_WITH_EXAMPLE__ |
| igorsk | 0:1063a091a062 | 35 | #include "lpc17xx_libcfg.h" |
| igorsk | 0:1063a091a062 | 36 | #else |
| igorsk | 0:1063a091a062 | 37 | #include "lpc17xx_libcfg_default.h" |
| igorsk | 0:1063a091a062 | 38 | #endif /* __BUILD_WITH_EXAMPLE__ */ |
| igorsk | 0:1063a091a062 | 39 | |
| igorsk | 0:1063a091a062 | 40 | #ifdef _TIM |
| igorsk | 0:1063a091a062 | 41 | |
| igorsk | 0:1063a091a062 | 42 | /* Private Functions ---------------------------------------------------------- */ |
| igorsk | 0:1063a091a062 | 43 | /** @defgroup TIM_Private_Functions |
| igorsk | 0:1063a091a062 | 44 | * @{ |
| igorsk | 0:1063a091a062 | 45 | */ |
| igorsk | 0:1063a091a062 | 46 | |
| igorsk | 0:1063a091a062 | 47 | uint32_t TIM_GetPClock (uint32_t timernum); |
| igorsk | 0:1063a091a062 | 48 | uint32_t TIM_ConverUSecToVal (uint32_t timernum, uint32_t usec); |
| igorsk | 0:1063a091a062 | 49 | uint32_t TIM_ConverPtrToTimeNum (LPC_TIM_TypeDef *TIMx); |
| igorsk | 0:1063a091a062 | 50 | |
| igorsk | 0:1063a091a062 | 51 | |
| igorsk | 0:1063a091a062 | 52 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 53 | * @brief Get peripheral clock of each timer controller |
| igorsk | 0:1063a091a062 | 54 | * @param[in] timernum Timer number |
| igorsk | 0:1063a091a062 | 55 | * @return Peripheral clock of timer |
| igorsk | 0:1063a091a062 | 56 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 57 | |
| igorsk | 0:1063a091a062 | 58 | uint32_t TIM_GetPClock (uint32_t timernum) |
| igorsk | 0:1063a091a062 | 59 | { |
| igorsk | 0:1063a091a062 | 60 | uint32_t clkdlycnt=0; |
| igorsk | 0:1063a091a062 | 61 | switch (timernum) |
| igorsk | 0:1063a091a062 | 62 | { |
| igorsk | 0:1063a091a062 | 63 | case 0: |
| igorsk | 0:1063a091a062 | 64 | clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER0); |
| igorsk | 0:1063a091a062 | 65 | break; |
| igorsk | 0:1063a091a062 | 66 | |
| igorsk | 0:1063a091a062 | 67 | case 1: |
| igorsk | 0:1063a091a062 | 68 | clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER1); |
| igorsk | 0:1063a091a062 | 69 | break; |
| igorsk | 0:1063a091a062 | 70 | |
| igorsk | 0:1063a091a062 | 71 | case 2: |
| igorsk | 0:1063a091a062 | 72 | clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER2); |
| igorsk | 0:1063a091a062 | 73 | break; |
| igorsk | 0:1063a091a062 | 74 | |
| igorsk | 0:1063a091a062 | 75 | case 3: |
| igorsk | 0:1063a091a062 | 76 | clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER3); |
| igorsk | 0:1063a091a062 | 77 | break; |
| igorsk | 0:1063a091a062 | 78 | } |
| igorsk | 0:1063a091a062 | 79 | return clkdlycnt; |
| igorsk | 0:1063a091a062 | 80 | } |
| igorsk | 0:1063a091a062 | 81 | |
| igorsk | 0:1063a091a062 | 82 | |
| igorsk | 0:1063a091a062 | 83 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 84 | * @brief Convert a time to a timer count value |
| igorsk | 0:1063a091a062 | 85 | * @param[in] timernum Timer number |
| igorsk | 0:1063a091a062 | 86 | * @param[in] usec Time in microseconds |
| igorsk | 0:1063a091a062 | 87 | * @return The number of required clock ticks to give the time delay |
| igorsk | 0:1063a091a062 | 88 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 89 | uint32_t TIM_ConverUSecToVal (uint32_t timernum, uint32_t usec) |
| igorsk | 0:1063a091a062 | 90 | { |
| igorsk | 0:1063a091a062 | 91 | uint64_t clkdlycnt; |
| igorsk | 0:1063a091a062 | 92 | |
| igorsk | 0:1063a091a062 | 93 | // Get Pclock of timer |
| igorsk | 0:1063a091a062 | 94 | clkdlycnt = (uint64_t) TIM_GetPClock (timernum); |
| igorsk | 0:1063a091a062 | 95 | |
| igorsk | 0:1063a091a062 | 96 | clkdlycnt = (clkdlycnt * usec) / 1000000; |
| igorsk | 0:1063a091a062 | 97 | return (uint32_t) clkdlycnt; |
| igorsk | 0:1063a091a062 | 98 | } |
| igorsk | 0:1063a091a062 | 99 | |
| igorsk | 0:1063a091a062 | 100 | |
| igorsk | 0:1063a091a062 | 101 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 102 | * @brief Convert a timer register pointer to a timer number |
| igorsk | 0:1063a091a062 | 103 | * @param[in] TIMx Pointer to a timer register set |
| igorsk | 0:1063a091a062 | 104 | * @return The timer number (0 to 3) or -1 if register pointer is bad |
| igorsk | 0:1063a091a062 | 105 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 106 | uint32_t TIM_ConverPtrToTimeNum (LPC_TIM_TypeDef *TIMx) |
| igorsk | 0:1063a091a062 | 107 | { |
| igorsk | 0:1063a091a062 | 108 | uint32_t tnum = (uint32_t)-1; |
| igorsk | 0:1063a091a062 | 109 | |
| igorsk | 0:1063a091a062 | 110 | if (TIMx == LPC_TIM0) |
| igorsk | 0:1063a091a062 | 111 | { |
| igorsk | 0:1063a091a062 | 112 | tnum = 0; |
| igorsk | 0:1063a091a062 | 113 | } |
| igorsk | 0:1063a091a062 | 114 | else if (TIMx == LPC_TIM1) |
| igorsk | 0:1063a091a062 | 115 | { |
| igorsk | 0:1063a091a062 | 116 | tnum = 1; |
| igorsk | 0:1063a091a062 | 117 | } |
| igorsk | 0:1063a091a062 | 118 | else if (TIMx == LPC_TIM2) |
| igorsk | 0:1063a091a062 | 119 | { |
| igorsk | 0:1063a091a062 | 120 | tnum = 2; |
| igorsk | 0:1063a091a062 | 121 | } |
| igorsk | 0:1063a091a062 | 122 | else if (TIMx == LPC_TIM3) |
| igorsk | 0:1063a091a062 | 123 | { |
| igorsk | 0:1063a091a062 | 124 | tnum = 3; |
| igorsk | 0:1063a091a062 | 125 | } |
| igorsk | 0:1063a091a062 | 126 | |
| igorsk | 0:1063a091a062 | 127 | return tnum; |
| igorsk | 0:1063a091a062 | 128 | } |
| igorsk | 0:1063a091a062 | 129 | |
| igorsk | 0:1063a091a062 | 130 | /** |
| igorsk | 0:1063a091a062 | 131 | * @} |
| igorsk | 0:1063a091a062 | 132 | */ |
| igorsk | 0:1063a091a062 | 133 | |
| igorsk | 0:1063a091a062 | 134 | |
| igorsk | 0:1063a091a062 | 135 | /* Public Functions ----------------------------------------------------------- */ |
| igorsk | 0:1063a091a062 | 136 | /** @addtogroup TIM_Public_Functions |
| igorsk | 0:1063a091a062 | 137 | * @{ |
| igorsk | 0:1063a091a062 | 138 | */ |
| igorsk | 0:1063a091a062 | 139 | |
| igorsk | 0:1063a091a062 | 140 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 141 | * @brief Get Interrupt Status |
| igorsk | 0:1063a091a062 | 142 | * @param[in] TIMx Timer selection, should be TIM0, TIM1, TIM2, TIM3 |
| igorsk | 0:1063a091a062 | 143 | * @param[in] IntFlag |
| igorsk | 0:1063a091a062 | 144 | * @return FlagStatus |
| igorsk | 0:1063a091a062 | 145 | * - SET : interrupt |
| igorsk | 0:1063a091a062 | 146 | * - RESET : no interrupt |
| igorsk | 0:1063a091a062 | 147 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 148 | FlagStatus TIM_GetIntStatus(LPC_TIM_TypeDef *TIMx, uint8_t IntFlag) |
| igorsk | 0:1063a091a062 | 149 | { |
| igorsk | 0:1063a091a062 | 150 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 151 | CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag)); |
| igorsk | 0:1063a091a062 | 152 | uint8_t temp = (TIMx->IR)& TIM_IR_CLR(IntFlag); |
| igorsk | 0:1063a091a062 | 153 | if (temp) |
| igorsk | 0:1063a091a062 | 154 | return SET; |
| igorsk | 0:1063a091a062 | 155 | |
| igorsk | 0:1063a091a062 | 156 | return RESET; |
| igorsk | 0:1063a091a062 | 157 | |
| igorsk | 0:1063a091a062 | 158 | } |
| igorsk | 0:1063a091a062 | 159 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 160 | * @brief Get Capture Interrupt Status |
| igorsk | 0:1063a091a062 | 161 | * @param[in] TIMx Timer selection, should be TIM0, TIM1, TIM2, TIM3 |
| igorsk | 0:1063a091a062 | 162 | * @param[in] IntFlag |
| igorsk | 0:1063a091a062 | 163 | * @return FlagStatus |
| igorsk | 0:1063a091a062 | 164 | * - SET : interrupt |
| igorsk | 0:1063a091a062 | 165 | * - RESET : no interrupt |
| igorsk | 0:1063a091a062 | 166 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 167 | FlagStatus TIM_GetIntCaptureStatus(LPC_TIM_TypeDef *TIMx, uint8_t IntFlag) |
| igorsk | 0:1063a091a062 | 168 | { |
| igorsk | 0:1063a091a062 | 169 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 170 | CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag)); |
| igorsk | 0:1063a091a062 | 171 | uint8_t temp = (TIMx->IR) & (1<<(4+IntFlag)); |
| igorsk | 0:1063a091a062 | 172 | if(temp) |
| igorsk | 0:1063a091a062 | 173 | return SET; |
| igorsk | 0:1063a091a062 | 174 | return RESET; |
| igorsk | 0:1063a091a062 | 175 | } |
| igorsk | 0:1063a091a062 | 176 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 177 | * @brief Clear Interrupt pending |
| igorsk | 0:1063a091a062 | 178 | * @param[in] TIMx Timer selection, should be TIM0, TIM1, TIM2, TIM3 |
| igorsk | 0:1063a091a062 | 179 | * @param[in] IntFlag should be in TIM_INT_TYPE enum |
| igorsk | 0:1063a091a062 | 180 | * @return None |
| igorsk | 0:1063a091a062 | 181 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 182 | void TIM_ClearIntPending(LPC_TIM_TypeDef *TIMx, uint8_t IntFlag) |
| igorsk | 0:1063a091a062 | 183 | { |
| igorsk | 0:1063a091a062 | 184 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 185 | CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag)); |
| igorsk | 0:1063a091a062 | 186 | TIMx->IR |= TIM_IR_CLR(IntFlag); |
| igorsk | 0:1063a091a062 | 187 | } |
| igorsk | 0:1063a091a062 | 188 | |
| igorsk | 0:1063a091a062 | 189 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 190 | * @brief Clear Capture Interrupt pending |
| igorsk | 0:1063a091a062 | 191 | * @param[in] TIMx Timer selection, should be TIM0, TIM1, TIM2, TIM3 |
| igorsk | 0:1063a091a062 | 192 | * @param[in] IntFlag should be in TIM_INT_TYPE enum |
| igorsk | 0:1063a091a062 | 193 | * @return None |
| igorsk | 0:1063a091a062 | 194 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 195 | void TIM_ClearIntCapturePending(LPC_TIM_TypeDef *TIMx, uint8_t IntFlag) |
| igorsk | 0:1063a091a062 | 196 | { |
| igorsk | 0:1063a091a062 | 197 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 198 | CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag)); |
| igorsk | 0:1063a091a062 | 199 | TIMx->IR |= (1<<(4+IntFlag)); |
| igorsk | 0:1063a091a062 | 200 | } |
| igorsk | 0:1063a091a062 | 201 | |
| igorsk | 0:1063a091a062 | 202 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 203 | * @brief Configuration for Timer at initial time |
| igorsk | 0:1063a091a062 | 204 | * @param[in] TimerCounterMode Should be : |
| igorsk | 0:1063a091a062 | 205 | * - PrescaleOption = TC_PRESCALE_USVAL, |
| igorsk | 0:1063a091a062 | 206 | * - PrescaleValue = 1 |
| igorsk | 0:1063a091a062 | 207 | * Counter mode with |
| igorsk | 0:1063a091a062 | 208 | * - Caption channel 0 |
| igorsk | 0:1063a091a062 | 209 | * @param[in] TIM_ConfigStruct pointer to TIM_TIMERCFG_Type or |
| igorsk | 0:1063a091a062 | 210 | * TIM_COUNTERCFG_Type |
| igorsk | 0:1063a091a062 | 211 | * @return None |
| igorsk | 0:1063a091a062 | 212 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 213 | void TIM_ConfigStructInit(uint8_t TimerCounterMode, void *TIM_ConfigStruct) |
| igorsk | 0:1063a091a062 | 214 | { |
| igorsk | 0:1063a091a062 | 215 | if (TimerCounterMode == TIM_TIMER_MODE ) |
| igorsk | 0:1063a091a062 | 216 | { |
| igorsk | 0:1063a091a062 | 217 | TIM_TIMERCFG_Type * pTimeCfg = (TIM_TIMERCFG_Type *)TIM_ConfigStruct; |
| igorsk | 0:1063a091a062 | 218 | pTimeCfg->PrescaleOption = TIM_PRESCALE_USVAL; |
| igorsk | 0:1063a091a062 | 219 | pTimeCfg->PrescaleValue = 1; |
| igorsk | 0:1063a091a062 | 220 | } |
| igorsk | 0:1063a091a062 | 221 | else |
| igorsk | 0:1063a091a062 | 222 | { |
| igorsk | 0:1063a091a062 | 223 | TIM_COUNTERCFG_Type * pCounterCfg = (TIM_COUNTERCFG_Type *)TIM_ConfigStruct; |
| igorsk | 0:1063a091a062 | 224 | pCounterCfg->CountInputSelect = TIM_COUNTER_INCAP0; |
| igorsk | 0:1063a091a062 | 225 | |
| igorsk | 0:1063a091a062 | 226 | } |
| igorsk | 0:1063a091a062 | 227 | } |
| igorsk | 0:1063a091a062 | 228 | |
| igorsk | 0:1063a091a062 | 229 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 230 | * @brief Initial Timer/Counter device |
| igorsk | 0:1063a091a062 | 231 | * Set Clock frequency for Timer |
| igorsk | 0:1063a091a062 | 232 | * Set initial configuration for Timer |
| igorsk | 0:1063a091a062 | 233 | * @param[in] TIMx Timer selection, should be TIM0, TIM1, TIM2, TIM3 |
| igorsk | 0:1063a091a062 | 234 | * @param[in] TimerCounterMode TIM_MODE_OPT |
| igorsk | 0:1063a091a062 | 235 | * @param[in] TIM_ConfigStruct pointer to TIM_TIMERCFG_Type |
| igorsk | 0:1063a091a062 | 236 | * that contains the configuration information for the |
| igorsk | 0:1063a091a062 | 237 | * specified Timer peripheral. |
| igorsk | 0:1063a091a062 | 238 | * @return None |
| igorsk | 0:1063a091a062 | 239 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 240 | void TIM_Init(LPC_TIM_TypeDef *TIMx, uint8_t TimerCounterMode, void *TIM_ConfigStruct) |
| igorsk | 0:1063a091a062 | 241 | { |
| igorsk | 0:1063a091a062 | 242 | TIM_TIMERCFG_Type *pTimeCfg; |
| igorsk | 0:1063a091a062 | 243 | TIM_COUNTERCFG_Type *pCounterCfg; |
| igorsk | 0:1063a091a062 | 244 | //uint32_t timer; |
| igorsk | 0:1063a091a062 | 245 | |
| igorsk | 0:1063a091a062 | 246 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 247 | CHECK_PARAM(PARAM_TIM_MODE_OPT(TimerCounterMode)); |
| igorsk | 0:1063a091a062 | 248 | |
| igorsk | 0:1063a091a062 | 249 | //timer = TIM_ConverPtrToTimeNum(TIMx) ; |
| igorsk | 0:1063a091a062 | 250 | //set power |
| igorsk | 0:1063a091a062 | 251 | if (TIMx== LPC_TIM0) |
| igorsk | 0:1063a091a062 | 252 | { |
| igorsk | 0:1063a091a062 | 253 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM0, ENABLE); |
| igorsk | 0:1063a091a062 | 254 | CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER0, CLKPWR_PCLKSEL_CCLK_DIV_4); |
| igorsk | 0:1063a091a062 | 255 | } |
| igorsk | 0:1063a091a062 | 256 | else if (TIMx== LPC_TIM1) |
| igorsk | 0:1063a091a062 | 257 | { |
| igorsk | 0:1063a091a062 | 258 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM1, ENABLE); |
| igorsk | 0:1063a091a062 | 259 | CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER1, CLKPWR_PCLKSEL_CCLK_DIV_4); |
| igorsk | 0:1063a091a062 | 260 | |
| igorsk | 0:1063a091a062 | 261 | } |
| igorsk | 0:1063a091a062 | 262 | |
| igorsk | 0:1063a091a062 | 263 | else if (TIMx== LPC_TIM2) |
| igorsk | 0:1063a091a062 | 264 | { |
| igorsk | 0:1063a091a062 | 265 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM2, ENABLE); |
| igorsk | 0:1063a091a062 | 266 | CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER2, CLKPWR_PCLKSEL_CCLK_DIV_4); |
| igorsk | 0:1063a091a062 | 267 | } |
| igorsk | 0:1063a091a062 | 268 | else if (TIMx== LPC_TIM3) |
| igorsk | 0:1063a091a062 | 269 | { |
| igorsk | 0:1063a091a062 | 270 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM3, ENABLE); |
| igorsk | 0:1063a091a062 | 271 | CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER3, CLKPWR_PCLKSEL_CCLK_DIV_4); |
| igorsk | 0:1063a091a062 | 272 | |
| igorsk | 0:1063a091a062 | 273 | } |
| igorsk | 0:1063a091a062 | 274 | |
| igorsk | 0:1063a091a062 | 275 | TIMx->CCR &= ~TIM_CTCR_MODE_MASK; |
| igorsk | 0:1063a091a062 | 276 | TIMx->CCR |= TIM_TIMER_MODE; |
| igorsk | 0:1063a091a062 | 277 | |
| igorsk | 0:1063a091a062 | 278 | TIMx->TC =0; |
| igorsk | 0:1063a091a062 | 279 | TIMx->PC =0; |
| igorsk | 0:1063a091a062 | 280 | TIMx->PR =0; |
| igorsk | 0:1063a091a062 | 281 | if (TimerCounterMode == TIM_TIMER_MODE ) |
| igorsk | 0:1063a091a062 | 282 | { |
| igorsk | 0:1063a091a062 | 283 | pTimeCfg = (TIM_TIMERCFG_Type *)TIM_ConfigStruct; |
| igorsk | 0:1063a091a062 | 284 | if (pTimeCfg->PrescaleOption == TIM_PRESCALE_TICKVAL) |
| igorsk | 0:1063a091a062 | 285 | { |
| igorsk | 0:1063a091a062 | 286 | TIMx->PR = pTimeCfg->PrescaleValue -1 ; |
| igorsk | 0:1063a091a062 | 287 | } |
| igorsk | 0:1063a091a062 | 288 | else |
| igorsk | 0:1063a091a062 | 289 | { |
| igorsk | 0:1063a091a062 | 290 | TIMx->PR = TIM_ConverUSecToVal (TIM_ConverPtrToTimeNum(TIMx),pTimeCfg->PrescaleValue)-1; |
| igorsk | 0:1063a091a062 | 291 | } |
| igorsk | 0:1063a091a062 | 292 | } |
| igorsk | 0:1063a091a062 | 293 | else |
| igorsk | 0:1063a091a062 | 294 | { |
| igorsk | 0:1063a091a062 | 295 | |
| igorsk | 0:1063a091a062 | 296 | pCounterCfg = (TIM_COUNTERCFG_Type *)TIM_ConfigStruct; |
| igorsk | 0:1063a091a062 | 297 | TIMx->CCR &= ~TIM_CTCR_INPUT_MASK; |
| igorsk | 0:1063a091a062 | 298 | if (pCounterCfg->CountInputSelect == TIM_COUNTER_INCAP1) |
| igorsk | 0:1063a091a062 | 299 | TIMx->CCR |= _BIT(2); |
| igorsk | 0:1063a091a062 | 300 | } |
| igorsk | 0:1063a091a062 | 301 | |
| igorsk | 0:1063a091a062 | 302 | // Clear interrupt pending |
| igorsk | 0:1063a091a062 | 303 | TIMx->IR = 0xFFFFFFFF; |
| igorsk | 0:1063a091a062 | 304 | |
| igorsk | 0:1063a091a062 | 305 | } |
| igorsk | 0:1063a091a062 | 306 | |
| igorsk | 0:1063a091a062 | 307 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 308 | * @brief Close Timer/Counter device |
| igorsk | 0:1063a091a062 | 309 | * @param[in] TIMx Pointer to timer device |
| igorsk | 0:1063a091a062 | 310 | * @return None |
| igorsk | 0:1063a091a062 | 311 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 312 | void TIM_DeInit (LPC_TIM_TypeDef *TIMx) |
| igorsk | 0:1063a091a062 | 313 | { |
| igorsk | 0:1063a091a062 | 314 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 315 | // Disable timer/counter |
| igorsk | 0:1063a091a062 | 316 | TIMx->TCR = 0x00; |
| igorsk | 0:1063a091a062 | 317 | |
| igorsk | 0:1063a091a062 | 318 | // Disable power |
| igorsk | 0:1063a091a062 | 319 | if (TIMx== LPC_TIM0) |
| igorsk | 0:1063a091a062 | 320 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM0, DISABLE); |
| igorsk | 0:1063a091a062 | 321 | |
| igorsk | 0:1063a091a062 | 322 | else if (TIMx== LPC_TIM1) |
| igorsk | 0:1063a091a062 | 323 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM1, DISABLE); |
| igorsk | 0:1063a091a062 | 324 | |
| igorsk | 0:1063a091a062 | 325 | else if (TIMx== LPC_TIM2) |
| igorsk | 0:1063a091a062 | 326 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM2, DISABLE); |
| igorsk | 0:1063a091a062 | 327 | |
| igorsk | 0:1063a091a062 | 328 | else if (TIMx== LPC_TIM3) |
| igorsk | 0:1063a091a062 | 329 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM2, DISABLE); |
| igorsk | 0:1063a091a062 | 330 | |
| igorsk | 0:1063a091a062 | 331 | } |
| igorsk | 0:1063a091a062 | 332 | |
| igorsk | 0:1063a091a062 | 333 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 334 | * @brief Start/Stop Timer/Counter device |
| igorsk | 0:1063a091a062 | 335 | * @param[in] TIMx Pointer to timer device |
| igorsk | 0:1063a091a062 | 336 | * @param[in] NewState |
| igorsk | 0:1063a091a062 | 337 | * - ENABLE : set timer enable |
| igorsk | 0:1063a091a062 | 338 | * - DISABLE : disable timer |
| igorsk | 0:1063a091a062 | 339 | * @return None |
| igorsk | 0:1063a091a062 | 340 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 341 | void TIM_Cmd(LPC_TIM_TypeDef *TIMx, FunctionalState NewState) |
| igorsk | 0:1063a091a062 | 342 | { |
| igorsk | 0:1063a091a062 | 343 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 344 | if (NewState == ENABLE) |
| igorsk | 0:1063a091a062 | 345 | { |
| igorsk | 0:1063a091a062 | 346 | TIMx->TCR |= TIM_ENABLE; |
| igorsk | 0:1063a091a062 | 347 | } |
| igorsk | 0:1063a091a062 | 348 | else |
| igorsk | 0:1063a091a062 | 349 | { |
| igorsk | 0:1063a091a062 | 350 | TIMx->TCR &= ~TIM_ENABLE; |
| igorsk | 0:1063a091a062 | 351 | } |
| igorsk | 0:1063a091a062 | 352 | } |
| igorsk | 0:1063a091a062 | 353 | |
| igorsk | 0:1063a091a062 | 354 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 355 | * @brief Reset Timer/Counter device, |
| igorsk | 0:1063a091a062 | 356 | * Make TC and PC are synchronously reset on the next |
| igorsk | 0:1063a091a062 | 357 | * positive edge of PCLK |
| igorsk | 0:1063a091a062 | 358 | * @param[in] TIMx Pointer to timer device |
| igorsk | 0:1063a091a062 | 359 | * @return None |
| igorsk | 0:1063a091a062 | 360 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 361 | void TIM_ResetCounter(LPC_TIM_TypeDef *TIMx) |
| igorsk | 0:1063a091a062 | 362 | { |
| igorsk | 0:1063a091a062 | 363 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 364 | TIMx->TCR |= TIM_RESET; |
| igorsk | 0:1063a091a062 | 365 | TIMx->TCR &= ~TIM_RESET; |
| igorsk | 0:1063a091a062 | 366 | } |
| igorsk | 0:1063a091a062 | 367 | |
| igorsk | 0:1063a091a062 | 368 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 369 | * @brief Configuration for Match register |
| igorsk | 0:1063a091a062 | 370 | * @param[in] TIMx Pointer to timer device |
| igorsk | 0:1063a091a062 | 371 | * @param[in] TIM_MatchConfigStruct Pointer to TIM_MATCHCFG_Type |
| igorsk | 0:1063a091a062 | 372 | * - MatchChannel : choose channel 0 or 1 |
| igorsk | 0:1063a091a062 | 373 | * - IntOnMatch : if SET, interrupt will be generated when MRxx match |
| igorsk | 0:1063a091a062 | 374 | * the value in TC |
| igorsk | 0:1063a091a062 | 375 | * - StopOnMatch : if SET, TC and PC will be stopped whenM Rxx match |
| igorsk | 0:1063a091a062 | 376 | * the value in TC |
| igorsk | 0:1063a091a062 | 377 | * - ResetOnMatch : if SET, Reset on MR0 when MRxx match |
| igorsk | 0:1063a091a062 | 378 | * the value in TC |
| igorsk | 0:1063a091a062 | 379 | * -ExtMatchOutputType: Select output for external match |
| igorsk | 0:1063a091a062 | 380 | * + 0: Do nothing for external output pin if match |
| igorsk | 0:1063a091a062 | 381 | * + 1: Force external output pin to low if match |
| igorsk | 0:1063a091a062 | 382 | * + 2: Force external output pin to high if match |
| igorsk | 0:1063a091a062 | 383 | * + 3: Toggle external output pin if match |
| igorsk | 0:1063a091a062 | 384 | * MatchValue: Set the value to be compared with TC value |
| igorsk | 0:1063a091a062 | 385 | * @return None |
| igorsk | 0:1063a091a062 | 386 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 387 | void TIM_ConfigMatch(LPC_TIM_TypeDef *TIMx, TIM_MATCHCFG_Type *TIM_MatchConfigStruct) |
| igorsk | 0:1063a091a062 | 388 | { |
| igorsk | 0:1063a091a062 | 389 | //uint32_t timer; |
| igorsk | 0:1063a091a062 | 390 | |
| igorsk | 0:1063a091a062 | 391 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 392 | CHECK_PARAM(PARAM_TIM_EXTMATCH_OPT(TIM_MatchConfigStruct->ExtMatchOutputType)); |
| igorsk | 0:1063a091a062 | 393 | |
| igorsk | 0:1063a091a062 | 394 | //timer = TIM_ConverPtrToTimeNum(TIMx) ; |
| igorsk | 0:1063a091a062 | 395 | switch(TIM_MatchConfigStruct->MatchChannel) |
| igorsk | 0:1063a091a062 | 396 | { |
| igorsk | 0:1063a091a062 | 397 | case 0: |
| igorsk | 0:1063a091a062 | 398 | TIMx->MR0 = TIM_MatchConfigStruct->MatchValue; |
| igorsk | 0:1063a091a062 | 399 | break; |
| igorsk | 0:1063a091a062 | 400 | case 1: |
| igorsk | 0:1063a091a062 | 401 | TIMx->MR1 = TIM_MatchConfigStruct->MatchValue; |
| igorsk | 0:1063a091a062 | 402 | break; |
| igorsk | 0:1063a091a062 | 403 | } |
| igorsk | 0:1063a091a062 | 404 | //interrupt on MRn |
| igorsk | 0:1063a091a062 | 405 | TIMx->MCR &=~TIM_MCR_CHANNEL_MASKBIT(TIM_MatchConfigStruct->MatchChannel); |
| igorsk | 0:1063a091a062 | 406 | |
| igorsk | 0:1063a091a062 | 407 | if (TIM_MatchConfigStruct->IntOnMatch) |
| igorsk | 0:1063a091a062 | 408 | TIMx->MCR |= TIM_INT_ON_MATCH(TIM_MatchConfigStruct->MatchChannel); |
| igorsk | 0:1063a091a062 | 409 | |
| igorsk | 0:1063a091a062 | 410 | //reset on MRn |
| igorsk | 0:1063a091a062 | 411 | if (TIM_MatchConfigStruct->ResetOnMatch) |
| igorsk | 0:1063a091a062 | 412 | TIMx->MCR |= TIM_RESET_ON_MATCH(TIM_MatchConfigStruct->MatchChannel); |
| igorsk | 0:1063a091a062 | 413 | |
| igorsk | 0:1063a091a062 | 414 | //stop on MRn |
| igorsk | 0:1063a091a062 | 415 | if (TIM_MatchConfigStruct->StopOnMatch) |
| igorsk | 0:1063a091a062 | 416 | TIMx->MCR |= TIM_STOP_ON_MATCH(TIM_MatchConfigStruct->MatchChannel); |
| igorsk | 0:1063a091a062 | 417 | // TIMx->MCR = 0x02; |
| igorsk | 0:1063a091a062 | 418 | |
| igorsk | 0:1063a091a062 | 419 | // match output type |
| igorsk | 0:1063a091a062 | 420 | |
| igorsk | 0:1063a091a062 | 421 | TIMx->EMR &= ~TIM_EM_MASK(TIM_MatchConfigStruct->MatchChannel); |
| igorsk | 0:1063a091a062 | 422 | TIMx->EMR = TIM_EM_SET(TIM_MatchConfigStruct->MatchChannel,TIM_MatchConfigStruct->ExtMatchOutputType); |
| igorsk | 0:1063a091a062 | 423 | } |
| igorsk | 0:1063a091a062 | 424 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 425 | * @brief Configuration for Capture register |
| igorsk | 0:1063a091a062 | 426 | * @param[in] TIMx Pointer to timer device |
| igorsk | 0:1063a091a062 | 427 | * - CaptureChannel: set the channel to capture data |
| igorsk | 0:1063a091a062 | 428 | * - RisingEdge : if SET, Capture at rising edge |
| igorsk | 0:1063a091a062 | 429 | * - FallingEdge : if SET, Capture at falling edge |
| igorsk | 0:1063a091a062 | 430 | * - IntOnCaption : if SET, Capture generate interrupt |
| igorsk | 0:1063a091a062 | 431 | * @param[in] TIM_CaptureConfigStruct Pointer to TIM_CAPTURECFG_Type |
| igorsk | 0:1063a091a062 | 432 | * @return None |
| igorsk | 0:1063a091a062 | 433 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 434 | void TIM_ConfigCapture(LPC_TIM_TypeDef *TIMx, TIM_CAPTURECFG_Type *TIM_CaptureConfigStruct) |
| igorsk | 0:1063a091a062 | 435 | { |
| igorsk | 0:1063a091a062 | 436 | //uint32_t timer; |
| igorsk | 0:1063a091a062 | 437 | |
| igorsk | 0:1063a091a062 | 438 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 439 | //timer = TIM_ConverPtrToTimeNum(TIMx) ; |
| igorsk | 0:1063a091a062 | 440 | TIMx->CCR &= ~TIM_CCR_CHANNEL_MASKBIT(TIM_CaptureConfigStruct->CaptureChannel); |
| igorsk | 0:1063a091a062 | 441 | |
| igorsk | 0:1063a091a062 | 442 | if (TIM_CaptureConfigStruct->RisingEdge) |
| igorsk | 0:1063a091a062 | 443 | TIMx->CCR |= TIM_CAP_RISING(TIM_CaptureConfigStruct->CaptureChannel); |
| igorsk | 0:1063a091a062 | 444 | |
| igorsk | 0:1063a091a062 | 445 | if (TIM_CaptureConfigStruct->FallingEdge) |
| igorsk | 0:1063a091a062 | 446 | TIMx->CCR |= TIM_CAP_FALLING(TIM_CaptureConfigStruct->CaptureChannel); |
| igorsk | 0:1063a091a062 | 447 | |
| igorsk | 0:1063a091a062 | 448 | if (TIM_CaptureConfigStruct->IntOnCaption) |
| igorsk | 0:1063a091a062 | 449 | TIMx->CCR |= TIM_INT_ON_CAP(TIM_CaptureConfigStruct->CaptureChannel); |
| igorsk | 0:1063a091a062 | 450 | } |
| igorsk | 0:1063a091a062 | 451 | |
| igorsk | 0:1063a091a062 | 452 | /*********************************************************************//** |
| igorsk | 0:1063a091a062 | 453 | * @brief Read value of capture register in timer/counter device |
| igorsk | 0:1063a091a062 | 454 | * @param[in] TIMx Pointer to timer/counter device |
| igorsk | 0:1063a091a062 | 455 | * @param[in] CaptureChannel: capture channel number |
| igorsk | 0:1063a091a062 | 456 | * @return Value of capture register |
| igorsk | 0:1063a091a062 | 457 | **********************************************************************/ |
| igorsk | 0:1063a091a062 | 458 | uint32_t TIM_GetCaptureValue(LPC_TIM_TypeDef *TIMx, uint8_t CaptureChannel) |
| igorsk | 0:1063a091a062 | 459 | { |
| igorsk | 0:1063a091a062 | 460 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| igorsk | 0:1063a091a062 | 461 | CHECK_PARAM(PARAM_TIM_COUNTER_INPUT_OPT(CaptureChannel)); |
| igorsk | 0:1063a091a062 | 462 | |
| igorsk | 0:1063a091a062 | 463 | if(CaptureChannel==0) |
| igorsk | 0:1063a091a062 | 464 | return TIMx->CR0; |
| igorsk | 0:1063a091a062 | 465 | else |
| igorsk | 0:1063a091a062 | 466 | return TIMx->CR1; |
| igorsk | 0:1063a091a062 | 467 | } |
| igorsk | 0:1063a091a062 | 468 | |
| igorsk | 0:1063a091a062 | 469 | /** |
| igorsk | 0:1063a091a062 | 470 | * @} |
| igorsk | 0:1063a091a062 | 471 | */ |
| igorsk | 0:1063a091a062 | 472 | |
| igorsk | 0:1063a091a062 | 473 | #endif /* _TIMER */ |
| igorsk | 0:1063a091a062 | 474 | |
| igorsk | 0:1063a091a062 | 475 | /** |
| igorsk | 0:1063a091a062 | 476 | * @} |
| igorsk | 0:1063a091a062 | 477 | */ |
| igorsk | 0:1063a091a062 | 478 | |
| igorsk | 0:1063a091a062 | 479 | /* --------------------------------- End Of File ------------------------------ */ |