Frank 26080115
Date: March 20, 2011 This library is created from "LPC17xx CMSIS-Compliant Standard Peripheral Firmware Driver Library (GNU, Keil, IAR) (Jan 28, 2011)", available from NXP's website, under "All microcontrollers support documents" [[http://ics.nxp.com/support/documents/microcontrollers/?type=software]] You will need to follow [[/projects/libraries/svn/mbed/trunk/LPC1768/LPC17xx.h]] while using this library Examples provided here [[/users/frank26080115/programs/LPC1700CMSIS_Examples/]] The beautiful thing is that NXP does not place copyright protection on any of the files in here Only a few modifications are made to make it compile with the mbed online compiler, I fixed some warnings as well. This is untested as of March 20, 2011 Forum post about this library: [[/forum/mbed/topic/2030/]]
lpc17xx_timer.c@0:84d7747641aa, 2011-03-20 (annotated)
- Committer:
- frank26080115
- Date:
- Sun Mar 20 18:45:15 2011 +0000
- Revision:
- 0:84d7747641aa
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| frank26080115 | 0:84d7747641aa | 1 | /***********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 2 | * @file lpc17xx_timer.c |
| frank26080115 | 0:84d7747641aa | 3 | * @brief Contains all functions support for Timer firmware library on LPC17xx |
| frank26080115 | 0:84d7747641aa | 4 | * @version 3.0 |
| frank26080115 | 0:84d7747641aa | 5 | * @date 18. June. 2010 |
| frank26080115 | 0:84d7747641aa | 6 | * @author NXP MCU SW Application Team |
| frank26080115 | 0:84d7747641aa | 7 | ************************************************************************** |
| frank26080115 | 0:84d7747641aa | 8 | * Software that is described herein is for illustrative purposes only |
| frank26080115 | 0:84d7747641aa | 9 | * which provides customers with programming information regarding the |
| frank26080115 | 0:84d7747641aa | 10 | * products. This software is supplied "AS IS" without any warranties. |
| frank26080115 | 0:84d7747641aa | 11 | * NXP Semiconductors assumes no responsibility or liability for the |
| frank26080115 | 0:84d7747641aa | 12 | * use of the software, conveys no license or title under any patent, |
| frank26080115 | 0:84d7747641aa | 13 | * copyright, or mask work right to the product. NXP Semiconductors |
| frank26080115 | 0:84d7747641aa | 14 | * reserves the right to make changes in the software without |
| frank26080115 | 0:84d7747641aa | 15 | * notification. NXP Semiconductors also make no representation or |
| frank26080115 | 0:84d7747641aa | 16 | * warranty that such application will be suitable for the specified |
| frank26080115 | 0:84d7747641aa | 17 | * use without further testing or modification. |
| frank26080115 | 0:84d7747641aa | 18 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 19 | |
| frank26080115 | 0:84d7747641aa | 20 | /* Peripheral group ----------------------------------------------------------- */ |
| frank26080115 | 0:84d7747641aa | 21 | /** @addtogroup TIM |
| frank26080115 | 0:84d7747641aa | 22 | * @{ |
| frank26080115 | 0:84d7747641aa | 23 | */ |
| frank26080115 | 0:84d7747641aa | 24 | |
| frank26080115 | 0:84d7747641aa | 25 | /* Includes ------------------------------------------------------------------- */ |
| frank26080115 | 0:84d7747641aa | 26 | #include "lpc17xx_timer.h" |
| frank26080115 | 0:84d7747641aa | 27 | #include "lpc17xx_clkpwr.h" |
| frank26080115 | 0:84d7747641aa | 28 | #include "lpc17xx_pinsel.h" |
| frank26080115 | 0:84d7747641aa | 29 | |
| frank26080115 | 0:84d7747641aa | 30 | /* If this source file built with example, the LPC17xx FW library configuration |
| frank26080115 | 0:84d7747641aa | 31 | * file in each example directory ("lpc17xx_libcfg.h") must be included, |
| frank26080115 | 0:84d7747641aa | 32 | * otherwise the default FW library configuration file must be included instead |
| frank26080115 | 0:84d7747641aa | 33 | */ |
| frank26080115 | 0:84d7747641aa | 34 | #ifdef __BUILD_WITH_EXAMPLE__ |
| frank26080115 | 0:84d7747641aa | 35 | #include "lpc17xx_libcfg.h" |
| frank26080115 | 0:84d7747641aa | 36 | #else |
| frank26080115 | 0:84d7747641aa | 37 | #include "lpc17xx_libcfg_default.h" |
| frank26080115 | 0:84d7747641aa | 38 | #endif /* __BUILD_WITH_EXAMPLE__ */ |
| frank26080115 | 0:84d7747641aa | 39 | |
| frank26080115 | 0:84d7747641aa | 40 | #ifdef _TIM |
| frank26080115 | 0:84d7747641aa | 41 | |
| frank26080115 | 0:84d7747641aa | 42 | /* Private Functions ---------------------------------------------------------- */ |
| frank26080115 | 0:84d7747641aa | 43 | |
| frank26080115 | 0:84d7747641aa | 44 | static uint32_t getPClock (uint32_t timernum); |
| frank26080115 | 0:84d7747641aa | 45 | static uint32_t converUSecToVal (uint32_t timernum, uint32_t usec); |
| frank26080115 | 0:84d7747641aa | 46 | static uint32_t converPtrToTimeNum (LPC_TIM_TypeDef *TIMx); |
| frank26080115 | 0:84d7747641aa | 47 | |
| frank26080115 | 0:84d7747641aa | 48 | |
| frank26080115 | 0:84d7747641aa | 49 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 50 | * @brief Get peripheral clock of each timer controller |
| frank26080115 | 0:84d7747641aa | 51 | * @param[in] timernum Timer number |
| frank26080115 | 0:84d7747641aa | 52 | * @return Peripheral clock of timer |
| frank26080115 | 0:84d7747641aa | 53 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 54 | static uint32_t getPClock (uint32_t timernum) |
| frank26080115 | 0:84d7747641aa | 55 | { |
| frank26080115 | 0:84d7747641aa | 56 | uint32_t clkdlycnt = 0; |
| frank26080115 | 0:84d7747641aa | 57 | switch (timernum) |
| frank26080115 | 0:84d7747641aa | 58 | { |
| frank26080115 | 0:84d7747641aa | 59 | case 0: |
| frank26080115 | 0:84d7747641aa | 60 | clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER0); |
| frank26080115 | 0:84d7747641aa | 61 | break; |
| frank26080115 | 0:84d7747641aa | 62 | |
| frank26080115 | 0:84d7747641aa | 63 | case 1: |
| frank26080115 | 0:84d7747641aa | 64 | clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER1); |
| frank26080115 | 0:84d7747641aa | 65 | break; |
| frank26080115 | 0:84d7747641aa | 66 | |
| frank26080115 | 0:84d7747641aa | 67 | case 2: |
| frank26080115 | 0:84d7747641aa | 68 | clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER2); |
| frank26080115 | 0:84d7747641aa | 69 | break; |
| frank26080115 | 0:84d7747641aa | 70 | |
| frank26080115 | 0:84d7747641aa | 71 | case 3: |
| frank26080115 | 0:84d7747641aa | 72 | clkdlycnt = CLKPWR_GetPCLK (CLKPWR_PCLKSEL_TIMER3); |
| frank26080115 | 0:84d7747641aa | 73 | break; |
| frank26080115 | 0:84d7747641aa | 74 | } |
| frank26080115 | 0:84d7747641aa | 75 | return clkdlycnt; |
| frank26080115 | 0:84d7747641aa | 76 | } |
| frank26080115 | 0:84d7747641aa | 77 | |
| frank26080115 | 0:84d7747641aa | 78 | |
| frank26080115 | 0:84d7747641aa | 79 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 80 | * @brief Convert a time to a timer count value |
| frank26080115 | 0:84d7747641aa | 81 | * @param[in] timernum Timer number |
| frank26080115 | 0:84d7747641aa | 82 | * @param[in] usec Time in microseconds |
| frank26080115 | 0:84d7747641aa | 83 | * @return The number of required clock ticks to give the time delay |
| frank26080115 | 0:84d7747641aa | 84 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 85 | uint32_t converUSecToVal (uint32_t timernum, uint32_t usec) |
| frank26080115 | 0:84d7747641aa | 86 | { |
| frank26080115 | 0:84d7747641aa | 87 | uint64_t clkdlycnt; |
| frank26080115 | 0:84d7747641aa | 88 | |
| frank26080115 | 0:84d7747641aa | 89 | // Get Pclock of timer |
| frank26080115 | 0:84d7747641aa | 90 | clkdlycnt = (uint64_t) getPClock(timernum); |
| frank26080115 | 0:84d7747641aa | 91 | |
| frank26080115 | 0:84d7747641aa | 92 | clkdlycnt = (clkdlycnt * usec) / 1000000; |
| frank26080115 | 0:84d7747641aa | 93 | return (uint32_t) clkdlycnt; |
| frank26080115 | 0:84d7747641aa | 94 | } |
| frank26080115 | 0:84d7747641aa | 95 | |
| frank26080115 | 0:84d7747641aa | 96 | |
| frank26080115 | 0:84d7747641aa | 97 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 98 | * @brief Convert a timer register pointer to a timer number |
| frank26080115 | 0:84d7747641aa | 99 | * @param[in] TIMx Pointer to LPC_TIM_TypeDef, should be: |
| frank26080115 | 0:84d7747641aa | 100 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 101 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 102 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 103 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 104 | * @return The timer number (0 to 3) or -1 if register pointer is bad |
| frank26080115 | 0:84d7747641aa | 105 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 106 | uint32_t converPtrToTimeNum (LPC_TIM_TypeDef *TIMx) |
| frank26080115 | 0:84d7747641aa | 107 | { |
| frank26080115 | 0:84d7747641aa | 108 | uint32_t tnum = 0xFFFFFFFF; |
| frank26080115 | 0:84d7747641aa | 109 | |
| frank26080115 | 0:84d7747641aa | 110 | if (TIMx == LPC_TIM0) |
| frank26080115 | 0:84d7747641aa | 111 | { |
| frank26080115 | 0:84d7747641aa | 112 | tnum = 0; |
| frank26080115 | 0:84d7747641aa | 113 | } |
| frank26080115 | 0:84d7747641aa | 114 | else if (TIMx == LPC_TIM1) |
| frank26080115 | 0:84d7747641aa | 115 | { |
| frank26080115 | 0:84d7747641aa | 116 | tnum = 1; |
| frank26080115 | 0:84d7747641aa | 117 | } |
| frank26080115 | 0:84d7747641aa | 118 | else if (TIMx == LPC_TIM2) |
| frank26080115 | 0:84d7747641aa | 119 | { |
| frank26080115 | 0:84d7747641aa | 120 | tnum = 2; |
| frank26080115 | 0:84d7747641aa | 121 | } |
| frank26080115 | 0:84d7747641aa | 122 | else if (TIMx == LPC_TIM3) |
| frank26080115 | 0:84d7747641aa | 123 | { |
| frank26080115 | 0:84d7747641aa | 124 | tnum = 3; |
| frank26080115 | 0:84d7747641aa | 125 | } |
| frank26080115 | 0:84d7747641aa | 126 | |
| frank26080115 | 0:84d7747641aa | 127 | return tnum; |
| frank26080115 | 0:84d7747641aa | 128 | } |
| frank26080115 | 0:84d7747641aa | 129 | |
| frank26080115 | 0:84d7747641aa | 130 | /* End of Private Functions ---------------------------------------------------- */ |
| frank26080115 | 0:84d7747641aa | 131 | |
| frank26080115 | 0:84d7747641aa | 132 | |
| frank26080115 | 0:84d7747641aa | 133 | /* Public Functions ----------------------------------------------------------- */ |
| frank26080115 | 0:84d7747641aa | 134 | /** @addtogroup TIM_Public_Functions |
| frank26080115 | 0:84d7747641aa | 135 | * @{ |
| frank26080115 | 0:84d7747641aa | 136 | */ |
| frank26080115 | 0:84d7747641aa | 137 | |
| frank26080115 | 0:84d7747641aa | 138 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 139 | * @brief Get Interrupt Status |
| frank26080115 | 0:84d7747641aa | 140 | * @param[in] TIMx Timer selection, should be: |
| frank26080115 | 0:84d7747641aa | 141 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 142 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 143 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 144 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 145 | * @param[in] IntFlag: interrupt type, should be: |
| frank26080115 | 0:84d7747641aa | 146 | * - TIM_MR0_INT: Interrupt for Match channel 0 |
| frank26080115 | 0:84d7747641aa | 147 | * - TIM_MR1_INT: Interrupt for Match channel 1 |
| frank26080115 | 0:84d7747641aa | 148 | * - TIM_MR2_INT: Interrupt for Match channel 2 |
| frank26080115 | 0:84d7747641aa | 149 | * - TIM_MR3_INT: Interrupt for Match channel 3 |
| frank26080115 | 0:84d7747641aa | 150 | * - TIM_CR0_INT: Interrupt for Capture channel 0 |
| frank26080115 | 0:84d7747641aa | 151 | * - TIM_CR1_INT: Interrupt for Capture channel 1 |
| frank26080115 | 0:84d7747641aa | 152 | * @return FlagStatus |
| frank26080115 | 0:84d7747641aa | 153 | * - SET : interrupt |
| frank26080115 | 0:84d7747641aa | 154 | * - RESET : no interrupt |
| frank26080115 | 0:84d7747641aa | 155 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 156 | FlagStatus TIM_GetIntStatus(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag) |
| frank26080115 | 0:84d7747641aa | 157 | { |
| frank26080115 | 0:84d7747641aa | 158 | uint8_t temp; |
| frank26080115 | 0:84d7747641aa | 159 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 160 | CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag)); |
| frank26080115 | 0:84d7747641aa | 161 | temp = (TIMx->IR)& TIM_IR_CLR(IntFlag); |
| frank26080115 | 0:84d7747641aa | 162 | if (temp) |
| frank26080115 | 0:84d7747641aa | 163 | return SET; |
| frank26080115 | 0:84d7747641aa | 164 | |
| frank26080115 | 0:84d7747641aa | 165 | return RESET; |
| frank26080115 | 0:84d7747641aa | 166 | |
| frank26080115 | 0:84d7747641aa | 167 | } |
| frank26080115 | 0:84d7747641aa | 168 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 169 | * @brief Get Capture Interrupt Status |
| frank26080115 | 0:84d7747641aa | 170 | * @param[in] TIMx Timer selection, should be: |
| frank26080115 | 0:84d7747641aa | 171 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 172 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 173 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 174 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 175 | * @param[in] IntFlag: interrupt type, should be: |
| frank26080115 | 0:84d7747641aa | 176 | * - TIM_MR0_INT: Interrupt for Match channel 0 |
| frank26080115 | 0:84d7747641aa | 177 | * - TIM_MR1_INT: Interrupt for Match channel 1 |
| frank26080115 | 0:84d7747641aa | 178 | * - TIM_MR2_INT: Interrupt for Match channel 2 |
| frank26080115 | 0:84d7747641aa | 179 | * - TIM_MR3_INT: Interrupt for Match channel 3 |
| frank26080115 | 0:84d7747641aa | 180 | * - TIM_CR0_INT: Interrupt for Capture channel 0 |
| frank26080115 | 0:84d7747641aa | 181 | * - TIM_CR1_INT: Interrupt for Capture channel 1 |
| frank26080115 | 0:84d7747641aa | 182 | * @return FlagStatus |
| frank26080115 | 0:84d7747641aa | 183 | * - SET : interrupt |
| frank26080115 | 0:84d7747641aa | 184 | * - RESET : no interrupt |
| frank26080115 | 0:84d7747641aa | 185 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 186 | FlagStatus TIM_GetIntCaptureStatus(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag) |
| frank26080115 | 0:84d7747641aa | 187 | { |
| frank26080115 | 0:84d7747641aa | 188 | uint8_t temp; |
| frank26080115 | 0:84d7747641aa | 189 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 190 | CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag)); |
| frank26080115 | 0:84d7747641aa | 191 | temp = (TIMx->IR) & (1<<(4+IntFlag)); |
| frank26080115 | 0:84d7747641aa | 192 | if(temp) |
| frank26080115 | 0:84d7747641aa | 193 | return SET; |
| frank26080115 | 0:84d7747641aa | 194 | return RESET; |
| frank26080115 | 0:84d7747641aa | 195 | } |
| frank26080115 | 0:84d7747641aa | 196 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 197 | * @brief Clear Interrupt pending |
| frank26080115 | 0:84d7747641aa | 198 | * @param[in] TIMx Timer selection, should be: |
| frank26080115 | 0:84d7747641aa | 199 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 200 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 201 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 202 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 203 | * @param[in] IntFlag: interrupt type, should be: |
| frank26080115 | 0:84d7747641aa | 204 | * - TIM_MR0_INT: Interrupt for Match channel 0 |
| frank26080115 | 0:84d7747641aa | 205 | * - TIM_MR1_INT: Interrupt for Match channel 1 |
| frank26080115 | 0:84d7747641aa | 206 | * - TIM_MR2_INT: Interrupt for Match channel 2 |
| frank26080115 | 0:84d7747641aa | 207 | * - TIM_MR3_INT: Interrupt for Match channel 3 |
| frank26080115 | 0:84d7747641aa | 208 | * - TIM_CR0_INT: Interrupt for Capture channel 0 |
| frank26080115 | 0:84d7747641aa | 209 | * - TIM_CR1_INT: Interrupt for Capture channel 1 |
| frank26080115 | 0:84d7747641aa | 210 | * @return None |
| frank26080115 | 0:84d7747641aa | 211 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 212 | void TIM_ClearIntPending(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag) |
| frank26080115 | 0:84d7747641aa | 213 | { |
| frank26080115 | 0:84d7747641aa | 214 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 215 | CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag)); |
| frank26080115 | 0:84d7747641aa | 216 | TIMx->IR |= TIM_IR_CLR(IntFlag); |
| frank26080115 | 0:84d7747641aa | 217 | } |
| frank26080115 | 0:84d7747641aa | 218 | |
| frank26080115 | 0:84d7747641aa | 219 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 220 | * @brief Clear Capture Interrupt pending |
| frank26080115 | 0:84d7747641aa | 221 | * @param[in] TIMx Timer selection, should be |
| frank26080115 | 0:84d7747641aa | 222 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 223 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 224 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 225 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 226 | * @param[in] IntFlag interrupt type, should be: |
| frank26080115 | 0:84d7747641aa | 227 | * - TIM_MR0_INT: Interrupt for Match channel 0 |
| frank26080115 | 0:84d7747641aa | 228 | * - TIM_MR1_INT: Interrupt for Match channel 1 |
| frank26080115 | 0:84d7747641aa | 229 | * - TIM_MR2_INT: Interrupt for Match channel 2 |
| frank26080115 | 0:84d7747641aa | 230 | * - TIM_MR3_INT: Interrupt for Match channel 3 |
| frank26080115 | 0:84d7747641aa | 231 | * - TIM_CR0_INT: Interrupt for Capture channel 0 |
| frank26080115 | 0:84d7747641aa | 232 | * - TIM_CR1_INT: Interrupt for Capture channel 1 |
| frank26080115 | 0:84d7747641aa | 233 | * @return None |
| frank26080115 | 0:84d7747641aa | 234 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 235 | void TIM_ClearIntCapturePending(LPC_TIM_TypeDef *TIMx, TIM_INT_TYPE IntFlag) |
| frank26080115 | 0:84d7747641aa | 236 | { |
| frank26080115 | 0:84d7747641aa | 237 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 238 | CHECK_PARAM(PARAM_TIM_INT_TYPE(IntFlag)); |
| frank26080115 | 0:84d7747641aa | 239 | TIMx->IR |= (1<<(4+IntFlag)); |
| frank26080115 | 0:84d7747641aa | 240 | } |
| frank26080115 | 0:84d7747641aa | 241 | |
| frank26080115 | 0:84d7747641aa | 242 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 243 | * @brief Configuration for Timer at initial time |
| frank26080115 | 0:84d7747641aa | 244 | * @param[in] TimerCounterMode timer counter mode, should be: |
| frank26080115 | 0:84d7747641aa | 245 | * - TIM_TIMER_MODE: Timer mode |
| frank26080115 | 0:84d7747641aa | 246 | * - TIM_COUNTER_RISING_MODE: Counter rising mode |
| frank26080115 | 0:84d7747641aa | 247 | * - TIM_COUNTER_FALLING_MODE: Counter falling mode |
| frank26080115 | 0:84d7747641aa | 248 | * - TIM_COUNTER_ANY_MODE:Counter on both edges |
| frank26080115 | 0:84d7747641aa | 249 | * @param[in] TIM_ConfigStruct pointer to TIM_TIMERCFG_Type or |
| frank26080115 | 0:84d7747641aa | 250 | * TIM_COUNTERCFG_Type |
| frank26080115 | 0:84d7747641aa | 251 | * @return None |
| frank26080115 | 0:84d7747641aa | 252 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 253 | void TIM_ConfigStructInit(TIM_MODE_OPT TimerCounterMode, void *TIM_ConfigStruct) |
| frank26080115 | 0:84d7747641aa | 254 | { |
| frank26080115 | 0:84d7747641aa | 255 | if (TimerCounterMode == TIM_TIMER_MODE ) |
| frank26080115 | 0:84d7747641aa | 256 | { |
| frank26080115 | 0:84d7747641aa | 257 | TIM_TIMERCFG_Type * pTimeCfg = (TIM_TIMERCFG_Type *)TIM_ConfigStruct; |
| frank26080115 | 0:84d7747641aa | 258 | pTimeCfg->PrescaleOption = TIM_PRESCALE_USVAL; |
| frank26080115 | 0:84d7747641aa | 259 | pTimeCfg->PrescaleValue = 1; |
| frank26080115 | 0:84d7747641aa | 260 | } |
| frank26080115 | 0:84d7747641aa | 261 | else |
| frank26080115 | 0:84d7747641aa | 262 | { |
| frank26080115 | 0:84d7747641aa | 263 | TIM_COUNTERCFG_Type * pCounterCfg = (TIM_COUNTERCFG_Type *)TIM_ConfigStruct; |
| frank26080115 | 0:84d7747641aa | 264 | pCounterCfg->CountInputSelect = TIM_COUNTER_INCAP0; |
| frank26080115 | 0:84d7747641aa | 265 | } |
| frank26080115 | 0:84d7747641aa | 266 | } |
| frank26080115 | 0:84d7747641aa | 267 | |
| frank26080115 | 0:84d7747641aa | 268 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 269 | * @brief Initial Timer/Counter device |
| frank26080115 | 0:84d7747641aa | 270 | * Set Clock frequency for Timer |
| frank26080115 | 0:84d7747641aa | 271 | * Set initial configuration for Timer |
| frank26080115 | 0:84d7747641aa | 272 | * @param[in] TIMx Timer selection, should be: |
| frank26080115 | 0:84d7747641aa | 273 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 274 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 275 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 276 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 277 | * @param[in] TimerCounterMode Timer counter mode, should be: |
| frank26080115 | 0:84d7747641aa | 278 | * - TIM_TIMER_MODE: Timer mode |
| frank26080115 | 0:84d7747641aa | 279 | * - TIM_COUNTER_RISING_MODE: Counter rising mode |
| frank26080115 | 0:84d7747641aa | 280 | * - TIM_COUNTER_FALLING_MODE: Counter falling mode |
| frank26080115 | 0:84d7747641aa | 281 | * - TIM_COUNTER_ANY_MODE:Counter on both edges |
| frank26080115 | 0:84d7747641aa | 282 | * @param[in] TIM_ConfigStruct pointer to TIM_TIMERCFG_Type |
| frank26080115 | 0:84d7747641aa | 283 | * that contains the configuration information for the |
| frank26080115 | 0:84d7747641aa | 284 | * specified Timer peripheral. |
| frank26080115 | 0:84d7747641aa | 285 | * @return None |
| frank26080115 | 0:84d7747641aa | 286 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 287 | void TIM_Init(LPC_TIM_TypeDef *TIMx, TIM_MODE_OPT TimerCounterMode, void *TIM_ConfigStruct) |
| frank26080115 | 0:84d7747641aa | 288 | { |
| frank26080115 | 0:84d7747641aa | 289 | TIM_TIMERCFG_Type *pTimeCfg; |
| frank26080115 | 0:84d7747641aa | 290 | TIM_COUNTERCFG_Type *pCounterCfg; |
| frank26080115 | 0:84d7747641aa | 291 | |
| frank26080115 | 0:84d7747641aa | 292 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 293 | CHECK_PARAM(PARAM_TIM_MODE_OPT(TimerCounterMode)); |
| frank26080115 | 0:84d7747641aa | 294 | |
| frank26080115 | 0:84d7747641aa | 295 | //set power |
| frank26080115 | 0:84d7747641aa | 296 | if (TIMx== LPC_TIM0) |
| frank26080115 | 0:84d7747641aa | 297 | { |
| frank26080115 | 0:84d7747641aa | 298 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM0, ENABLE); |
| frank26080115 | 0:84d7747641aa | 299 | CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER0, CLKPWR_PCLKSEL_CCLK_DIV_4); |
| frank26080115 | 0:84d7747641aa | 300 | } |
| frank26080115 | 0:84d7747641aa | 301 | else if (TIMx== LPC_TIM1) |
| frank26080115 | 0:84d7747641aa | 302 | { |
| frank26080115 | 0:84d7747641aa | 303 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM1, ENABLE); |
| frank26080115 | 0:84d7747641aa | 304 | CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER1, CLKPWR_PCLKSEL_CCLK_DIV_4); |
| frank26080115 | 0:84d7747641aa | 305 | |
| frank26080115 | 0:84d7747641aa | 306 | } |
| frank26080115 | 0:84d7747641aa | 307 | |
| frank26080115 | 0:84d7747641aa | 308 | else if (TIMx== LPC_TIM2) |
| frank26080115 | 0:84d7747641aa | 309 | { |
| frank26080115 | 0:84d7747641aa | 310 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM2, ENABLE); |
| frank26080115 | 0:84d7747641aa | 311 | CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER2, CLKPWR_PCLKSEL_CCLK_DIV_4); |
| frank26080115 | 0:84d7747641aa | 312 | } |
| frank26080115 | 0:84d7747641aa | 313 | else if (TIMx== LPC_TIM3) |
| frank26080115 | 0:84d7747641aa | 314 | { |
| frank26080115 | 0:84d7747641aa | 315 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM3, ENABLE); |
| frank26080115 | 0:84d7747641aa | 316 | CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER3, CLKPWR_PCLKSEL_CCLK_DIV_4); |
| frank26080115 | 0:84d7747641aa | 317 | |
| frank26080115 | 0:84d7747641aa | 318 | } |
| frank26080115 | 0:84d7747641aa | 319 | |
| frank26080115 | 0:84d7747641aa | 320 | TIMx->CCR &= ~TIM_CTCR_MODE_MASK; |
| frank26080115 | 0:84d7747641aa | 321 | TIMx->CCR |= TIM_TIMER_MODE; |
| frank26080115 | 0:84d7747641aa | 322 | |
| frank26080115 | 0:84d7747641aa | 323 | TIMx->TC =0; |
| frank26080115 | 0:84d7747641aa | 324 | TIMx->PC =0; |
| frank26080115 | 0:84d7747641aa | 325 | TIMx->PR =0; |
| frank26080115 | 0:84d7747641aa | 326 | TIMx->TCR |= (1<<1); //Reset Counter |
| frank26080115 | 0:84d7747641aa | 327 | TIMx->TCR &= ~(1<<1); //release reset |
| frank26080115 | 0:84d7747641aa | 328 | if (TimerCounterMode == TIM_TIMER_MODE ) |
| frank26080115 | 0:84d7747641aa | 329 | { |
| frank26080115 | 0:84d7747641aa | 330 | pTimeCfg = (TIM_TIMERCFG_Type *)TIM_ConfigStruct; |
| frank26080115 | 0:84d7747641aa | 331 | if (pTimeCfg->PrescaleOption == TIM_PRESCALE_TICKVAL) |
| frank26080115 | 0:84d7747641aa | 332 | { |
| frank26080115 | 0:84d7747641aa | 333 | TIMx->PR = pTimeCfg->PrescaleValue -1 ; |
| frank26080115 | 0:84d7747641aa | 334 | } |
| frank26080115 | 0:84d7747641aa | 335 | else |
| frank26080115 | 0:84d7747641aa | 336 | { |
| frank26080115 | 0:84d7747641aa | 337 | TIMx->PR = converUSecToVal (converPtrToTimeNum(TIMx),pTimeCfg->PrescaleValue)-1; |
| frank26080115 | 0:84d7747641aa | 338 | } |
| frank26080115 | 0:84d7747641aa | 339 | } |
| frank26080115 | 0:84d7747641aa | 340 | else |
| frank26080115 | 0:84d7747641aa | 341 | { |
| frank26080115 | 0:84d7747641aa | 342 | |
| frank26080115 | 0:84d7747641aa | 343 | pCounterCfg = (TIM_COUNTERCFG_Type *)TIM_ConfigStruct; |
| frank26080115 | 0:84d7747641aa | 344 | TIMx->CCR &= ~TIM_CTCR_INPUT_MASK; |
| frank26080115 | 0:84d7747641aa | 345 | if (pCounterCfg->CountInputSelect == TIM_COUNTER_INCAP1) |
| frank26080115 | 0:84d7747641aa | 346 | TIMx->CCR |= _BIT(2); |
| frank26080115 | 0:84d7747641aa | 347 | } |
| frank26080115 | 0:84d7747641aa | 348 | |
| frank26080115 | 0:84d7747641aa | 349 | // Clear interrupt pending |
| frank26080115 | 0:84d7747641aa | 350 | TIMx->IR = 0xFFFFFFFF; |
| frank26080115 | 0:84d7747641aa | 351 | |
| frank26080115 | 0:84d7747641aa | 352 | } |
| frank26080115 | 0:84d7747641aa | 353 | |
| frank26080115 | 0:84d7747641aa | 354 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 355 | * @brief Close Timer/Counter device |
| frank26080115 | 0:84d7747641aa | 356 | * @param[in] TIMx Pointer to timer device, should be: |
| frank26080115 | 0:84d7747641aa | 357 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 358 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 359 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 360 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 361 | * @return None |
| frank26080115 | 0:84d7747641aa | 362 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 363 | void TIM_DeInit (LPC_TIM_TypeDef *TIMx) |
| frank26080115 | 0:84d7747641aa | 364 | { |
| frank26080115 | 0:84d7747641aa | 365 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 366 | // Disable timer/counter |
| frank26080115 | 0:84d7747641aa | 367 | TIMx->TCR = 0x00; |
| frank26080115 | 0:84d7747641aa | 368 | |
| frank26080115 | 0:84d7747641aa | 369 | // Disable power |
| frank26080115 | 0:84d7747641aa | 370 | if (TIMx== LPC_TIM0) |
| frank26080115 | 0:84d7747641aa | 371 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM0, DISABLE); |
| frank26080115 | 0:84d7747641aa | 372 | |
| frank26080115 | 0:84d7747641aa | 373 | else if (TIMx== LPC_TIM1) |
| frank26080115 | 0:84d7747641aa | 374 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM1, DISABLE); |
| frank26080115 | 0:84d7747641aa | 375 | |
| frank26080115 | 0:84d7747641aa | 376 | else if (TIMx== LPC_TIM2) |
| frank26080115 | 0:84d7747641aa | 377 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM2, DISABLE); |
| frank26080115 | 0:84d7747641aa | 378 | |
| frank26080115 | 0:84d7747641aa | 379 | else if (TIMx== LPC_TIM3) |
| frank26080115 | 0:84d7747641aa | 380 | CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM2, DISABLE); |
| frank26080115 | 0:84d7747641aa | 381 | |
| frank26080115 | 0:84d7747641aa | 382 | } |
| frank26080115 | 0:84d7747641aa | 383 | |
| frank26080115 | 0:84d7747641aa | 384 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 385 | * @brief Start/Stop Timer/Counter device |
| frank26080115 | 0:84d7747641aa | 386 | * @param[in] TIMx Pointer to timer device, should be: |
| frank26080115 | 0:84d7747641aa | 387 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 388 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 389 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 390 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 391 | * @param[in] NewState |
| frank26080115 | 0:84d7747641aa | 392 | * - ENABLE : set timer enable |
| frank26080115 | 0:84d7747641aa | 393 | * - DISABLE : disable timer |
| frank26080115 | 0:84d7747641aa | 394 | * @return None |
| frank26080115 | 0:84d7747641aa | 395 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 396 | void TIM_Cmd(LPC_TIM_TypeDef *TIMx, FunctionalState NewState) |
| frank26080115 | 0:84d7747641aa | 397 | { |
| frank26080115 | 0:84d7747641aa | 398 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 399 | if (NewState == ENABLE) |
| frank26080115 | 0:84d7747641aa | 400 | { |
| frank26080115 | 0:84d7747641aa | 401 | TIMx->TCR |= TIM_ENABLE; |
| frank26080115 | 0:84d7747641aa | 402 | } |
| frank26080115 | 0:84d7747641aa | 403 | else |
| frank26080115 | 0:84d7747641aa | 404 | { |
| frank26080115 | 0:84d7747641aa | 405 | TIMx->TCR &= ~TIM_ENABLE; |
| frank26080115 | 0:84d7747641aa | 406 | } |
| frank26080115 | 0:84d7747641aa | 407 | } |
| frank26080115 | 0:84d7747641aa | 408 | |
| frank26080115 | 0:84d7747641aa | 409 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 410 | * @brief Reset Timer/Counter device, |
| frank26080115 | 0:84d7747641aa | 411 | * Make TC and PC are synchronously reset on the next |
| frank26080115 | 0:84d7747641aa | 412 | * positive edge of PCLK |
| frank26080115 | 0:84d7747641aa | 413 | * @param[in] TIMx Pointer to timer device, should be: |
| frank26080115 | 0:84d7747641aa | 414 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 415 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 416 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 417 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 418 | * @return None |
| frank26080115 | 0:84d7747641aa | 419 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 420 | void TIM_ResetCounter(LPC_TIM_TypeDef *TIMx) |
| frank26080115 | 0:84d7747641aa | 421 | { |
| frank26080115 | 0:84d7747641aa | 422 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 423 | TIMx->TCR |= TIM_RESET; |
| frank26080115 | 0:84d7747641aa | 424 | TIMx->TCR &= ~TIM_RESET; |
| frank26080115 | 0:84d7747641aa | 425 | } |
| frank26080115 | 0:84d7747641aa | 426 | |
| frank26080115 | 0:84d7747641aa | 427 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 428 | * @brief Configuration for Match register |
| frank26080115 | 0:84d7747641aa | 429 | * @param[in] TIMx Pointer to timer device, should be: |
| frank26080115 | 0:84d7747641aa | 430 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 431 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 432 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 433 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 434 | * @param[in] TIM_MatchConfigStruct Pointer to TIM_MATCHCFG_Type |
| frank26080115 | 0:84d7747641aa | 435 | * - MatchChannel : choose channel 0 or 1 |
| frank26080115 | 0:84d7747641aa | 436 | * - IntOnMatch : if SET, interrupt will be generated when MRxx match |
| frank26080115 | 0:84d7747641aa | 437 | * the value in TC |
| frank26080115 | 0:84d7747641aa | 438 | * - StopOnMatch : if SET, TC and PC will be stopped whenM Rxx match |
| frank26080115 | 0:84d7747641aa | 439 | * the value in TC |
| frank26080115 | 0:84d7747641aa | 440 | * - ResetOnMatch : if SET, Reset on MR0 when MRxx match |
| frank26080115 | 0:84d7747641aa | 441 | * the value in TC |
| frank26080115 | 0:84d7747641aa | 442 | * -ExtMatchOutputType: Select output for external match |
| frank26080115 | 0:84d7747641aa | 443 | * + 0: Do nothing for external output pin if match |
| frank26080115 | 0:84d7747641aa | 444 | * + 1: Force external output pin to low if match |
| frank26080115 | 0:84d7747641aa | 445 | * + 2: Force external output pin to high if match |
| frank26080115 | 0:84d7747641aa | 446 | * + 3: Toggle external output pin if match |
| frank26080115 | 0:84d7747641aa | 447 | * MatchValue: Set the value to be compared with TC value |
| frank26080115 | 0:84d7747641aa | 448 | * @return None |
| frank26080115 | 0:84d7747641aa | 449 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 450 | void TIM_ConfigMatch(LPC_TIM_TypeDef *TIMx, TIM_MATCHCFG_Type *TIM_MatchConfigStruct) |
| frank26080115 | 0:84d7747641aa | 451 | { |
| frank26080115 | 0:84d7747641aa | 452 | |
| frank26080115 | 0:84d7747641aa | 453 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 454 | CHECK_PARAM(PARAM_TIM_EXTMATCH_OPT(TIM_MatchConfigStruct->ExtMatchOutputType)); |
| frank26080115 | 0:84d7747641aa | 455 | |
| frank26080115 | 0:84d7747641aa | 456 | switch(TIM_MatchConfigStruct->MatchChannel) |
| frank26080115 | 0:84d7747641aa | 457 | { |
| frank26080115 | 0:84d7747641aa | 458 | case 0: |
| frank26080115 | 0:84d7747641aa | 459 | TIMx->MR0 = TIM_MatchConfigStruct->MatchValue; |
| frank26080115 | 0:84d7747641aa | 460 | break; |
| frank26080115 | 0:84d7747641aa | 461 | case 1: |
| frank26080115 | 0:84d7747641aa | 462 | TIMx->MR1 = TIM_MatchConfigStruct->MatchValue; |
| frank26080115 | 0:84d7747641aa | 463 | break; |
| frank26080115 | 0:84d7747641aa | 464 | case 2: |
| frank26080115 | 0:84d7747641aa | 465 | TIMx->MR2 = TIM_MatchConfigStruct->MatchValue; |
| frank26080115 | 0:84d7747641aa | 466 | break; |
| frank26080115 | 0:84d7747641aa | 467 | case 3: |
| frank26080115 | 0:84d7747641aa | 468 | TIMx->MR3 = TIM_MatchConfigStruct->MatchValue; |
| frank26080115 | 0:84d7747641aa | 469 | break; |
| frank26080115 | 0:84d7747641aa | 470 | default: |
| frank26080115 | 0:84d7747641aa | 471 | //Error match value |
| frank26080115 | 0:84d7747641aa | 472 | //Error loop |
| frank26080115 | 0:84d7747641aa | 473 | while(1); |
| frank26080115 | 0:84d7747641aa | 474 | } |
| frank26080115 | 0:84d7747641aa | 475 | //interrupt on MRn |
| frank26080115 | 0:84d7747641aa | 476 | TIMx->MCR &=~TIM_MCR_CHANNEL_MASKBIT(TIM_MatchConfigStruct->MatchChannel); |
| frank26080115 | 0:84d7747641aa | 477 | |
| frank26080115 | 0:84d7747641aa | 478 | if (TIM_MatchConfigStruct->IntOnMatch) |
| frank26080115 | 0:84d7747641aa | 479 | TIMx->MCR |= TIM_INT_ON_MATCH(TIM_MatchConfigStruct->MatchChannel); |
| frank26080115 | 0:84d7747641aa | 480 | |
| frank26080115 | 0:84d7747641aa | 481 | //reset on MRn |
| frank26080115 | 0:84d7747641aa | 482 | if (TIM_MatchConfigStruct->ResetOnMatch) |
| frank26080115 | 0:84d7747641aa | 483 | TIMx->MCR |= TIM_RESET_ON_MATCH(TIM_MatchConfigStruct->MatchChannel); |
| frank26080115 | 0:84d7747641aa | 484 | |
| frank26080115 | 0:84d7747641aa | 485 | //stop on MRn |
| frank26080115 | 0:84d7747641aa | 486 | if (TIM_MatchConfigStruct->StopOnMatch) |
| frank26080115 | 0:84d7747641aa | 487 | TIMx->MCR |= TIM_STOP_ON_MATCH(TIM_MatchConfigStruct->MatchChannel); |
| frank26080115 | 0:84d7747641aa | 488 | |
| frank26080115 | 0:84d7747641aa | 489 | // match output type |
| frank26080115 | 0:84d7747641aa | 490 | |
| frank26080115 | 0:84d7747641aa | 491 | TIMx->EMR &= ~TIM_EM_MASK(TIM_MatchConfigStruct->MatchChannel); |
| frank26080115 | 0:84d7747641aa | 492 | TIMx->EMR |= TIM_EM_SET(TIM_MatchConfigStruct->MatchChannel,TIM_MatchConfigStruct->ExtMatchOutputType); |
| frank26080115 | 0:84d7747641aa | 493 | } |
| frank26080115 | 0:84d7747641aa | 494 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 495 | * @brief Update Match value |
| frank26080115 | 0:84d7747641aa | 496 | * @param[in] TIMx Pointer to timer device, should be: |
| frank26080115 | 0:84d7747641aa | 497 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 498 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 499 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 500 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 501 | * @param[in] MatchChannel Match channel, should be: 0..3 |
| frank26080115 | 0:84d7747641aa | 502 | * @param[in] MatchValue updated match value |
| frank26080115 | 0:84d7747641aa | 503 | * @return None |
| frank26080115 | 0:84d7747641aa | 504 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 505 | void TIM_UpdateMatchValue(LPC_TIM_TypeDef *TIMx,uint8_t MatchChannel, uint32_t MatchValue) |
| frank26080115 | 0:84d7747641aa | 506 | { |
| frank26080115 | 0:84d7747641aa | 507 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 508 | switch(MatchChannel) |
| frank26080115 | 0:84d7747641aa | 509 | { |
| frank26080115 | 0:84d7747641aa | 510 | case 0: |
| frank26080115 | 0:84d7747641aa | 511 | TIMx->MR0 = MatchValue; |
| frank26080115 | 0:84d7747641aa | 512 | break; |
| frank26080115 | 0:84d7747641aa | 513 | case 1: |
| frank26080115 | 0:84d7747641aa | 514 | TIMx->MR1 = MatchValue; |
| frank26080115 | 0:84d7747641aa | 515 | break; |
| frank26080115 | 0:84d7747641aa | 516 | case 2: |
| frank26080115 | 0:84d7747641aa | 517 | TIMx->MR2 = MatchValue; |
| frank26080115 | 0:84d7747641aa | 518 | break; |
| frank26080115 | 0:84d7747641aa | 519 | case 3: |
| frank26080115 | 0:84d7747641aa | 520 | TIMx->MR3 = MatchValue; |
| frank26080115 | 0:84d7747641aa | 521 | break; |
| frank26080115 | 0:84d7747641aa | 522 | default: |
| frank26080115 | 0:84d7747641aa | 523 | //Error Loop |
| frank26080115 | 0:84d7747641aa | 524 | while(1); |
| frank26080115 | 0:84d7747641aa | 525 | } |
| frank26080115 | 0:84d7747641aa | 526 | |
| frank26080115 | 0:84d7747641aa | 527 | } |
| frank26080115 | 0:84d7747641aa | 528 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 529 | * @brief Configuration for Capture register |
| frank26080115 | 0:84d7747641aa | 530 | * @param[in] TIMx Pointer to timer device, should be: |
| frank26080115 | 0:84d7747641aa | 531 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 532 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 533 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 534 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 535 | * - CaptureChannel: set the channel to capture data |
| frank26080115 | 0:84d7747641aa | 536 | * - RisingEdge : if SET, Capture at rising edge |
| frank26080115 | 0:84d7747641aa | 537 | * - FallingEdge : if SET, Capture at falling edge |
| frank26080115 | 0:84d7747641aa | 538 | * - IntOnCaption : if SET, Capture generate interrupt |
| frank26080115 | 0:84d7747641aa | 539 | * @param[in] TIM_CaptureConfigStruct Pointer to TIM_CAPTURECFG_Type |
| frank26080115 | 0:84d7747641aa | 540 | * @return None |
| frank26080115 | 0:84d7747641aa | 541 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 542 | void TIM_ConfigCapture(LPC_TIM_TypeDef *TIMx, TIM_CAPTURECFG_Type *TIM_CaptureConfigStruct) |
| frank26080115 | 0:84d7747641aa | 543 | { |
| frank26080115 | 0:84d7747641aa | 544 | |
| frank26080115 | 0:84d7747641aa | 545 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 546 | TIMx->CCR &= ~TIM_CCR_CHANNEL_MASKBIT(TIM_CaptureConfigStruct->CaptureChannel); |
| frank26080115 | 0:84d7747641aa | 547 | |
| frank26080115 | 0:84d7747641aa | 548 | if (TIM_CaptureConfigStruct->RisingEdge) |
| frank26080115 | 0:84d7747641aa | 549 | TIMx->CCR |= TIM_CAP_RISING(TIM_CaptureConfigStruct->CaptureChannel); |
| frank26080115 | 0:84d7747641aa | 550 | |
| frank26080115 | 0:84d7747641aa | 551 | if (TIM_CaptureConfigStruct->FallingEdge) |
| frank26080115 | 0:84d7747641aa | 552 | TIMx->CCR |= TIM_CAP_FALLING(TIM_CaptureConfigStruct->CaptureChannel); |
| frank26080115 | 0:84d7747641aa | 553 | |
| frank26080115 | 0:84d7747641aa | 554 | if (TIM_CaptureConfigStruct->IntOnCaption) |
| frank26080115 | 0:84d7747641aa | 555 | TIMx->CCR |= TIM_INT_ON_CAP(TIM_CaptureConfigStruct->CaptureChannel); |
| frank26080115 | 0:84d7747641aa | 556 | } |
| frank26080115 | 0:84d7747641aa | 557 | |
| frank26080115 | 0:84d7747641aa | 558 | /*********************************************************************//** |
| frank26080115 | 0:84d7747641aa | 559 | * @brief Read value of capture register in timer/counter device |
| frank26080115 | 0:84d7747641aa | 560 | * @param[in] TIMx Pointer to timer/counter device, should be: |
| frank26080115 | 0:84d7747641aa | 561 | * - LPC_TIM0: TIMER0 peripheral |
| frank26080115 | 0:84d7747641aa | 562 | * - LPC_TIM1: TIMER1 peripheral |
| frank26080115 | 0:84d7747641aa | 563 | * - LPC_TIM2: TIMER2 peripheral |
| frank26080115 | 0:84d7747641aa | 564 | * - LPC_TIM3: TIMER3 peripheral |
| frank26080115 | 0:84d7747641aa | 565 | * @param[in] CaptureChannel: capture channel number, should be: |
| frank26080115 | 0:84d7747641aa | 566 | * - TIM_COUNTER_INCAP0: CAPn.0 input pin for TIMERn |
| frank26080115 | 0:84d7747641aa | 567 | * - TIM_COUNTER_INCAP1: CAPn.1 input pin for TIMERn |
| frank26080115 | 0:84d7747641aa | 568 | * @return Value of capture register |
| frank26080115 | 0:84d7747641aa | 569 | **********************************************************************/ |
| frank26080115 | 0:84d7747641aa | 570 | uint32_t TIM_GetCaptureValue(LPC_TIM_TypeDef *TIMx, TIM_COUNTER_INPUT_OPT CaptureChannel) |
| frank26080115 | 0:84d7747641aa | 571 | { |
| frank26080115 | 0:84d7747641aa | 572 | CHECK_PARAM(PARAM_TIMx(TIMx)); |
| frank26080115 | 0:84d7747641aa | 573 | CHECK_PARAM(PARAM_TIM_COUNTER_INPUT_OPT(CaptureChannel)); |
| frank26080115 | 0:84d7747641aa | 574 | |
| frank26080115 | 0:84d7747641aa | 575 | if(CaptureChannel==0) |
| frank26080115 | 0:84d7747641aa | 576 | return TIMx->CR0; |
| frank26080115 | 0:84d7747641aa | 577 | else |
| frank26080115 | 0:84d7747641aa | 578 | return TIMx->CR1; |
| frank26080115 | 0:84d7747641aa | 579 | } |
| frank26080115 | 0:84d7747641aa | 580 | |
| frank26080115 | 0:84d7747641aa | 581 | /** |
| frank26080115 | 0:84d7747641aa | 582 | * @} |
| frank26080115 | 0:84d7747641aa | 583 | */ |
| frank26080115 | 0:84d7747641aa | 584 | |
| frank26080115 | 0:84d7747641aa | 585 | #endif /* _TIMER */ |
| frank26080115 | 0:84d7747641aa | 586 | |
| frank26080115 | 0:84d7747641aa | 587 | /** |
| frank26080115 | 0:84d7747641aa | 588 | * @} |
| frank26080115 | 0:84d7747641aa | 589 | */ |
| frank26080115 | 0:84d7747641aa | 590 | |
| frank26080115 | 0:84d7747641aa | 591 | /* --------------------------------- End Of File ------------------------------ */ |