Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K66F/drivers/fsl_tsi_v4.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)

Committer:
<>
Date:
Fri Sep 02 15:07:44 2016 +0100
Revision:
144:ef7eb2e8f9f7
This updates the lib to the mbed lib v125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /*
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2014 - 2015, Freescale Semiconductor, Inc.
<> 144:ef7eb2e8f9f7 3 * All rights reserved.
<> 144:ef7eb2e8f9f7 4 *
<> 144:ef7eb2e8f9f7 5 * Redistribution and use in source and binary forms, with or without modification,
<> 144:ef7eb2e8f9f7 6 * are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * o Redistributions of source code must retain the above copyright notice, this list
<> 144:ef7eb2e8f9f7 9 * of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 10 *
<> 144:ef7eb2e8f9f7 11 * o Redistributions in binary form must reproduce the above copyright notice, this
<> 144:ef7eb2e8f9f7 12 * list of conditions and the following disclaimer in the documentation and/or
<> 144:ef7eb2e8f9f7 13 * other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 14 *
<> 144:ef7eb2e8f9f7 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
<> 144:ef7eb2e8f9f7 16 * contributors may be used to endorse or promote products derived from this
<> 144:ef7eb2e8f9f7 17 * software without specific prior written permission.
<> 144:ef7eb2e8f9f7 18 *
<> 144:ef7eb2e8f9f7 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
<> 144:ef7eb2e8f9f7 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
<> 144:ef7eb2e8f9f7 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
<> 144:ef7eb2e8f9f7 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
<> 144:ef7eb2e8f9f7 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
<> 144:ef7eb2e8f9f7 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
<> 144:ef7eb2e8f9f7 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
<> 144:ef7eb2e8f9f7 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
<> 144:ef7eb2e8f9f7 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 29 */
<> 144:ef7eb2e8f9f7 30 #include "fsl_tsi_v4.h"
<> 144:ef7eb2e8f9f7 31
<> 144:ef7eb2e8f9f7 32 void TSI_Init(TSI_Type *base, const tsi_config_t *config)
<> 144:ef7eb2e8f9f7 33 {
<> 144:ef7eb2e8f9f7 34 assert(config != NULL);
<> 144:ef7eb2e8f9f7 35
<> 144:ef7eb2e8f9f7 36 bool is_module_enabled = false;
<> 144:ef7eb2e8f9f7 37 bool is_int_enabled = false;
<> 144:ef7eb2e8f9f7 38
<> 144:ef7eb2e8f9f7 39 CLOCK_EnableClock(kCLOCK_Tsi0);
<> 144:ef7eb2e8f9f7 40 if (base->GENCS & TSI_GENCS_TSIEN_MASK)
<> 144:ef7eb2e8f9f7 41 {
<> 144:ef7eb2e8f9f7 42 is_module_enabled = true;
<> 144:ef7eb2e8f9f7 43 TSI_EnableModule(base, false);
<> 144:ef7eb2e8f9f7 44 }
<> 144:ef7eb2e8f9f7 45 if (base->GENCS & TSI_GENCS_TSIIEN_MASK)
<> 144:ef7eb2e8f9f7 46 {
<> 144:ef7eb2e8f9f7 47 is_int_enabled = true;
<> 144:ef7eb2e8f9f7 48 TSI_DisableInterrupts(base, kTSI_GlobalInterruptEnable);
<> 144:ef7eb2e8f9f7 49 }
<> 144:ef7eb2e8f9f7 50
<> 144:ef7eb2e8f9f7 51 TSI_SetHighThreshold(base, config->thresh);
<> 144:ef7eb2e8f9f7 52 TSI_SetLowThreshold(base, config->thresl);
<> 144:ef7eb2e8f9f7 53 TSI_SetElectrodeOSCPrescaler(base, config->prescaler);
<> 144:ef7eb2e8f9f7 54 TSI_SetReferenceChargeCurrent(base, config->refchrg);
<> 144:ef7eb2e8f9f7 55 TSI_SetElectrodeChargeCurrent(base, config->extchrg);
<> 144:ef7eb2e8f9f7 56 TSI_SetNumberOfScans(base, config->nscn);
<> 144:ef7eb2e8f9f7 57 TSI_SetAnalogMode(base, config->mode);
<> 144:ef7eb2e8f9f7 58 TSI_SetOscVoltageRails(base, config->dvolt);
<> 144:ef7eb2e8f9f7 59 TSI_SetElectrodeSeriesResistor(base, config->resistor);
<> 144:ef7eb2e8f9f7 60 TSI_SetFilterBits(base, config->filter);
<> 144:ef7eb2e8f9f7 61
<> 144:ef7eb2e8f9f7 62 if (is_module_enabled)
<> 144:ef7eb2e8f9f7 63 {
<> 144:ef7eb2e8f9f7 64 TSI_EnableModule(base, true);
<> 144:ef7eb2e8f9f7 65 }
<> 144:ef7eb2e8f9f7 66 if (is_int_enabled)
<> 144:ef7eb2e8f9f7 67 {
<> 144:ef7eb2e8f9f7 68 TSI_EnableInterrupts(base, kTSI_GlobalInterruptEnable);
<> 144:ef7eb2e8f9f7 69 }
<> 144:ef7eb2e8f9f7 70 }
<> 144:ef7eb2e8f9f7 71
<> 144:ef7eb2e8f9f7 72 void TSI_Deinit(TSI_Type *base)
<> 144:ef7eb2e8f9f7 73 {
<> 144:ef7eb2e8f9f7 74 base->GENCS = 0U;
<> 144:ef7eb2e8f9f7 75 base->DATA = 0U;
<> 144:ef7eb2e8f9f7 76 base->TSHD = 0U;
<> 144:ef7eb2e8f9f7 77 CLOCK_DisableClock(kCLOCK_Tsi0);
<> 144:ef7eb2e8f9f7 78 }
<> 144:ef7eb2e8f9f7 79
<> 144:ef7eb2e8f9f7 80 void TSI_GetNormalModeDefaultConfig(tsi_config_t *userConfig)
<> 144:ef7eb2e8f9f7 81 {
<> 144:ef7eb2e8f9f7 82 userConfig->thresh = 0U;
<> 144:ef7eb2e8f9f7 83 userConfig->thresl = 0U;
<> 144:ef7eb2e8f9f7 84 userConfig->prescaler = kTSI_ElecOscPrescaler_2div;
<> 144:ef7eb2e8f9f7 85 userConfig->extchrg = kTSI_ExtOscChargeCurrent_4uA;
<> 144:ef7eb2e8f9f7 86 userConfig->refchrg = kTSI_RefOscChargeCurrent_4uA;
<> 144:ef7eb2e8f9f7 87 userConfig->nscn = kTSI_ConsecutiveScansNumber_5time;
<> 144:ef7eb2e8f9f7 88 userConfig->mode = kTSI_AnalogModeSel_Capacitive;
<> 144:ef7eb2e8f9f7 89 userConfig->dvolt = kTSI_OscVolRailsOption_0;
<> 144:ef7eb2e8f9f7 90 userConfig->resistor = kTSI_SeriesResistance_32k;
<> 144:ef7eb2e8f9f7 91 userConfig->filter = kTSI_FilterBits_3;
<> 144:ef7eb2e8f9f7 92 }
<> 144:ef7eb2e8f9f7 93
<> 144:ef7eb2e8f9f7 94 void TSI_GetLowPowerModeDefaultConfig(tsi_config_t *userConfig)
<> 144:ef7eb2e8f9f7 95 {
<> 144:ef7eb2e8f9f7 96 userConfig->thresh = 400U;
<> 144:ef7eb2e8f9f7 97 userConfig->thresl = 0U;
<> 144:ef7eb2e8f9f7 98 userConfig->prescaler = kTSI_ElecOscPrescaler_2div;
<> 144:ef7eb2e8f9f7 99 userConfig->extchrg = kTSI_ExtOscChargeCurrent_4uA;
<> 144:ef7eb2e8f9f7 100 userConfig->refchrg = kTSI_RefOscChargeCurrent_4uA;
<> 144:ef7eb2e8f9f7 101 userConfig->nscn = kTSI_ConsecutiveScansNumber_5time;
<> 144:ef7eb2e8f9f7 102 userConfig->mode = kTSI_AnalogModeSel_Capacitive;
<> 144:ef7eb2e8f9f7 103 userConfig->dvolt = kTSI_OscVolRailsOption_0;
<> 144:ef7eb2e8f9f7 104 userConfig->resistor = kTSI_SeriesResistance_32k;
<> 144:ef7eb2e8f9f7 105 userConfig->filter = kTSI_FilterBits_3;
<> 144:ef7eb2e8f9f7 106 }
<> 144:ef7eb2e8f9f7 107
<> 144:ef7eb2e8f9f7 108 void TSI_Calibrate(TSI_Type *base, tsi_calibration_data_t *calBuff)
<> 144:ef7eb2e8f9f7 109 {
<> 144:ef7eb2e8f9f7 110 assert(calBuff != NULL);
<> 144:ef7eb2e8f9f7 111
<> 144:ef7eb2e8f9f7 112 uint8_t i = 0U;
<> 144:ef7eb2e8f9f7 113 bool is_int_enabled = false;
<> 144:ef7eb2e8f9f7 114
<> 144:ef7eb2e8f9f7 115 if (base->GENCS & TSI_GENCS_TSIIEN_MASK)
<> 144:ef7eb2e8f9f7 116 {
<> 144:ef7eb2e8f9f7 117 is_int_enabled = true;
<> 144:ef7eb2e8f9f7 118 TSI_DisableInterrupts(base, kTSI_GlobalInterruptEnable);
<> 144:ef7eb2e8f9f7 119 }
<> 144:ef7eb2e8f9f7 120 for (i = 0U; i < FSL_FEATURE_TSI_CHANNEL_COUNT; i++)
<> 144:ef7eb2e8f9f7 121 {
<> 144:ef7eb2e8f9f7 122 TSI_SetMeasuredChannelNumber(base, i);
<> 144:ef7eb2e8f9f7 123 TSI_StartSoftwareTrigger(base);
<> 144:ef7eb2e8f9f7 124 while (!(TSI_GetStatusFlags(base) & kTSI_EndOfScanFlag))
<> 144:ef7eb2e8f9f7 125 {
<> 144:ef7eb2e8f9f7 126 }
<> 144:ef7eb2e8f9f7 127 calBuff->calibratedData[i] = TSI_GetCounter(base);
<> 144:ef7eb2e8f9f7 128 TSI_ClearStatusFlags(base, kTSI_EndOfScanFlag);
<> 144:ef7eb2e8f9f7 129 }
<> 144:ef7eb2e8f9f7 130 if (is_int_enabled)
<> 144:ef7eb2e8f9f7 131 {
<> 144:ef7eb2e8f9f7 132 TSI_EnableInterrupts(base, kTSI_GlobalInterruptEnable);
<> 144:ef7eb2e8f9f7 133 }
<> 144:ef7eb2e8f9f7 134 }
<> 144:ef7eb2e8f9f7 135
<> 144:ef7eb2e8f9f7 136 void TSI_EnableInterrupts(TSI_Type *base, uint32_t mask)
<> 144:ef7eb2e8f9f7 137 {
<> 144:ef7eb2e8f9f7 138 if (mask & kTSI_GlobalInterruptEnable)
<> 144:ef7eb2e8f9f7 139 {
<> 144:ef7eb2e8f9f7 140 base->GENCS |= TSI_GENCS_TSIIEN_MASK;
<> 144:ef7eb2e8f9f7 141 }
<> 144:ef7eb2e8f9f7 142 if (mask & kTSI_OutOfRangeInterruptEnable)
<> 144:ef7eb2e8f9f7 143 {
<> 144:ef7eb2e8f9f7 144 base->GENCS &= ~TSI_GENCS_ESOR_MASK;
<> 144:ef7eb2e8f9f7 145 }
<> 144:ef7eb2e8f9f7 146 if (mask & kTSI_EndOfScanInterruptEnable)
<> 144:ef7eb2e8f9f7 147 {
<> 144:ef7eb2e8f9f7 148 base->GENCS |= TSI_GENCS_ESOR_MASK;
<> 144:ef7eb2e8f9f7 149 }
<> 144:ef7eb2e8f9f7 150 }
<> 144:ef7eb2e8f9f7 151
<> 144:ef7eb2e8f9f7 152 void TSI_DisableInterrupts(TSI_Type *base, uint32_t mask)
<> 144:ef7eb2e8f9f7 153 {
<> 144:ef7eb2e8f9f7 154 if (mask & kTSI_GlobalInterruptEnable)
<> 144:ef7eb2e8f9f7 155 {
<> 144:ef7eb2e8f9f7 156 base->GENCS &= ~TSI_GENCS_TSIIEN_MASK;
<> 144:ef7eb2e8f9f7 157 }
<> 144:ef7eb2e8f9f7 158 if (mask & kTSI_OutOfRangeInterruptEnable)
<> 144:ef7eb2e8f9f7 159 {
<> 144:ef7eb2e8f9f7 160 base->GENCS |= TSI_GENCS_ESOR_MASK;
<> 144:ef7eb2e8f9f7 161 }
<> 144:ef7eb2e8f9f7 162 if (mask & kTSI_EndOfScanInterruptEnable)
<> 144:ef7eb2e8f9f7 163 {
<> 144:ef7eb2e8f9f7 164 base->GENCS &= ~TSI_GENCS_ESOR_MASK;
<> 144:ef7eb2e8f9f7 165 }
<> 144:ef7eb2e8f9f7 166 }
<> 144:ef7eb2e8f9f7 167
<> 144:ef7eb2e8f9f7 168 void TSI_ClearStatusFlags(TSI_Type *base, uint32_t mask)
<> 144:ef7eb2e8f9f7 169 {
<> 144:ef7eb2e8f9f7 170 if (mask & kTSI_EndOfScanFlag)
<> 144:ef7eb2e8f9f7 171 {
<> 144:ef7eb2e8f9f7 172 base->GENCS = (base->GENCS & ~(TSI_GENCS_EOSF_MASK | TSI_GENCS_OUTRGF_MASK)) | TSI_GENCS_EOSF_MASK;
<> 144:ef7eb2e8f9f7 173 }
<> 144:ef7eb2e8f9f7 174 if (mask & kTSI_OutOfRangeFlag)
<> 144:ef7eb2e8f9f7 175 {
<> 144:ef7eb2e8f9f7 176 base->GENCS = (base->GENCS & ~(TSI_GENCS_EOSF_MASK | TSI_GENCS_OUTRGF_MASK)) | TSI_GENCS_OUTRGF_MASK;
<> 144:ef7eb2e8f9f7 177 }
<> 144:ef7eb2e8f9f7 178 }