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targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_KPSDK_CODE/hal/osc/fsl_osc_hal.c@149:1fb5f62b92bd, 2014-04-03 (annotated)

Committer:
mbed_official
Date:
Thu Apr 03 11:45:06 2014 +0100
Revision:
149:1fb5f62b92bd
Parent:
targets/hal/TARGET_Freescale/TARGET_KSDK_MCUS/TARGET_KSDK_CODE/hal/osc/fsl_osc_hal.c@146:f64d43ff0c18
Child:
324:406fd2029f23
Synchronized with git revision 220c0bb39ceee40016e1e86350c058963d01ed42



Full URL: https://github.com/mbedmicro/mbed/commit/220c0bb39ceee40016e1e86350c058963d01ed42/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 146:f64d43ff0c18 1 /*
mbed_official 146:f64d43ff0c18 2 * Copyright (c) 2013 - 2014, Freescale Semiconductor, Inc.
mbed_official 146:f64d43ff0c18 3 * All rights reserved.
mbed_official 146:f64d43ff0c18 4 *
mbed_official 146:f64d43ff0c18 5 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 146:f64d43ff0c18 6 * are permitted provided that the following conditions are met:
mbed_official 146:f64d43ff0c18 7 *
mbed_official 146:f64d43ff0c18 8 * o Redistributions of source code must retain the above copyright notice, this list
mbed_official 146:f64d43ff0c18 9 * of conditions and the following disclaimer.
mbed_official 146:f64d43ff0c18 10 *
mbed_official 146:f64d43ff0c18 11 * o Redistributions in binary form must reproduce the above copyright notice, this
mbed_official 146:f64d43ff0c18 12 * list of conditions and the following disclaimer in the documentation and/or
mbed_official 146:f64d43ff0c18 13 * other materials provided with the distribution.
mbed_official 146:f64d43ff0c18 14 *
mbed_official 146:f64d43ff0c18 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
mbed_official 146:f64d43ff0c18 16 * contributors may be used to endorse or promote products derived from this
mbed_official 146:f64d43ff0c18 17 * software without specific prior written permission.
mbed_official 146:f64d43ff0c18 18 *
mbed_official 146:f64d43ff0c18 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
mbed_official 146:f64d43ff0c18 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
mbed_official 146:f64d43ff0c18 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 146:f64d43ff0c18 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
mbed_official 146:f64d43ff0c18 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
mbed_official 146:f64d43ff0c18 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
mbed_official 146:f64d43ff0c18 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
mbed_official 146:f64d43ff0c18 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
mbed_official 146:f64d43ff0c18 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
mbed_official 146:f64d43ff0c18 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 146:f64d43ff0c18 29 */
mbed_official 146:f64d43ff0c18 30
mbed_official 146:f64d43ff0c18 31 #include "fsl_osc_hal.h"
mbed_official 146:f64d43ff0c18 32
mbed_official 146:f64d43ff0c18 33 /*******************************************************************************
mbed_official 146:f64d43ff0c18 34 * Definitions
mbed_official 146:f64d43ff0c18 35 ******************************************************************************/
mbed_official 146:f64d43ff0c18 36
mbed_official 146:f64d43ff0c18 37
mbed_official 146:f64d43ff0c18 38 /*******************************************************************************
mbed_official 146:f64d43ff0c18 39 * Code
mbed_official 146:f64d43ff0c18 40 ******************************************************************************/
mbed_official 146:f64d43ff0c18 41
mbed_official 146:f64d43ff0c18 42 /*FUNCTION**********************************************************************
mbed_official 146:f64d43ff0c18 43 *
mbed_official 146:f64d43ff0c18 44 * Function Name : osc_hal_enable_external_reference_clock
mbed_official 146:f64d43ff0c18 45 * Description : Enable the external reference clock for oscillator
mbed_official 146:f64d43ff0c18 46 * This function will enable the external reference clock output
mbed_official 146:f64d43ff0c18 47 * for oscillator - that is the OSCERCLK. This clock will be used
mbed_official 146:f64d43ff0c18 48 * by many peripherals. It should be enabled at early system init
mbed_official 146:f64d43ff0c18 49 * stage to ensure the peripherals could select it and use it.
mbed_official 146:f64d43ff0c18 50 *
mbed_official 146:f64d43ff0c18 51 *END**************************************************************************/
mbed_official 146:f64d43ff0c18 52 void osc_hal_enable_external_reference_clock(osc_instance_t instance)
mbed_official 146:f64d43ff0c18 53 {
mbed_official 146:f64d43ff0c18 54 /* check instance range */
mbed_official 146:f64d43ff0c18 55 assert(instance < FSL_FEATURE_OSC_COUNT);
mbed_official 146:f64d43ff0c18 56
mbed_official 146:f64d43ff0c18 57 /* branch according to instance */
mbed_official 146:f64d43ff0c18 58 switch (instance)
mbed_official 146:f64d43ff0c18 59 {
mbed_official 146:f64d43ff0c18 60 #if FSL_FEATURE_OSC_HAS_OSC0
mbed_official 146:f64d43ff0c18 61 case 0:
mbed_official 146:f64d43ff0c18 62 OSC0->CR |= OSC_CR_ERCLKEN_MASK;
mbed_official 146:f64d43ff0c18 63 break;
mbed_official 146:f64d43ff0c18 64 #endif
mbed_official 146:f64d43ff0c18 65 #if FSL_FEATURE_OSC_HAS_OSC1
mbed_official 146:f64d43ff0c18 66 case 1:
mbed_official 146:f64d43ff0c18 67 OSC1->CR |= OSC_CR_ERCLKEN_MASK;
mbed_official 146:f64d43ff0c18 68 break;
mbed_official 146:f64d43ff0c18 69 #endif
mbed_official 146:f64d43ff0c18 70 #if FSL_FEATURE_OSC_HAS_OSC
mbed_official 146:f64d43ff0c18 71 case 0:
mbed_official 146:f64d43ff0c18 72 OSC->CR |= OSC_CR_ERCLKEN_MASK;
mbed_official 146:f64d43ff0c18 73 break;
mbed_official 146:f64d43ff0c18 74 #endif
mbed_official 146:f64d43ff0c18 75 default:
mbed_official 146:f64d43ff0c18 76 break;
mbed_official 146:f64d43ff0c18 77 }
mbed_official 146:f64d43ff0c18 78 }
mbed_official 146:f64d43ff0c18 79
mbed_official 146:f64d43ff0c18 80 /*FUNCTION**********************************************************************
mbed_official 146:f64d43ff0c18 81 *
mbed_official 146:f64d43ff0c18 82 * Function Name : osc_hal_disable_external_reference_clock
mbed_official 146:f64d43ff0c18 83 * Description : Disable the external reference clock for oscillator
mbed_official 146:f64d43ff0c18 84 * This function will disable the external reference clock output
mbed_official 146:f64d43ff0c18 85 * for oscillator - that is the OSCERCLK. This clock will be used
mbed_official 146:f64d43ff0c18 86 * by many peripherals. It should be enabled at early system init
mbed_official 146:f64d43ff0c18 87 * stage to ensure the peripherals could select it and use it.
mbed_official 146:f64d43ff0c18 88 *
mbed_official 146:f64d43ff0c18 89 *END**************************************************************************/
mbed_official 146:f64d43ff0c18 90 void osc_hal_disable_external_reference_clock(osc_instance_t instance)
mbed_official 146:f64d43ff0c18 91 {
mbed_official 146:f64d43ff0c18 92 /* check instance range */
mbed_official 146:f64d43ff0c18 93 assert(instance < FSL_FEATURE_OSC_COUNT);
mbed_official 146:f64d43ff0c18 94
mbed_official 146:f64d43ff0c18 95 /* branch according to instance */
mbed_official 146:f64d43ff0c18 96 switch (instance)
mbed_official 146:f64d43ff0c18 97 {
mbed_official 146:f64d43ff0c18 98 #if FSL_FEATURE_OSC_HAS_OSC0
mbed_official 146:f64d43ff0c18 99 case 0:
mbed_official 146:f64d43ff0c18 100 OSC0->CR &= ~OSC_CR_ERCLKEN_MASK;
mbed_official 146:f64d43ff0c18 101 break;
mbed_official 146:f64d43ff0c18 102 #endif
mbed_official 146:f64d43ff0c18 103 #if FSL_FEATURE_OSC_HAS_OSC1
mbed_official 146:f64d43ff0c18 104 case 1:
mbed_official 146:f64d43ff0c18 105 OSC1->CR &= ~OSC_CR_ERCLKEN_MASK;
mbed_official 146:f64d43ff0c18 106 break;
mbed_official 146:f64d43ff0c18 107 #endif
mbed_official 146:f64d43ff0c18 108 #if FSL_FEATURE_OSC_HAS_OSC
mbed_official 146:f64d43ff0c18 109 case 0:
mbed_official 146:f64d43ff0c18 110 OSC->CR &= ~OSC_CR_ERCLKEN_MASK;
mbed_official 146:f64d43ff0c18 111 break;
mbed_official 146:f64d43ff0c18 112 #endif
mbed_official 146:f64d43ff0c18 113 default:
mbed_official 146:f64d43ff0c18 114 break;
mbed_official 146:f64d43ff0c18 115 }
mbed_official 146:f64d43ff0c18 116 }
mbed_official 146:f64d43ff0c18 117
mbed_official 146:f64d43ff0c18 118 /*FUNCTION**********************************************************************
mbed_official 146:f64d43ff0c18 119 *
mbed_official 146:f64d43ff0c18 120 * Function Name : osc_hal_enable_external_reference_clock_in_stop_mode
mbed_official 146:f64d43ff0c18 121 * Description : Enable the external reference clock in stop mode
mbed_official 146:f64d43ff0c18 122 * This function will enable the external reference clock (OSCERCLK) when
mbed_official 146:f64d43ff0c18 123 * MCU enters Stop mode.
mbed_official 146:f64d43ff0c18 124 *
mbed_official 146:f64d43ff0c18 125 *END**************************************************************************/
mbed_official 146:f64d43ff0c18 126 void osc_hal_enable_external_reference_clock_in_stop_mode(osc_instance_t instance)
mbed_official 146:f64d43ff0c18 127 {
mbed_official 146:f64d43ff0c18 128 /* check instance range */
mbed_official 146:f64d43ff0c18 129 assert(instance < FSL_FEATURE_OSC_COUNT);
mbed_official 146:f64d43ff0c18 130
mbed_official 146:f64d43ff0c18 131 /* branch according to instance */
mbed_official 146:f64d43ff0c18 132 switch (instance)
mbed_official 146:f64d43ff0c18 133 {
mbed_official 146:f64d43ff0c18 134 #if FSL_FEATURE_OSC_HAS_OSC0
mbed_official 146:f64d43ff0c18 135 case 0:
mbed_official 146:f64d43ff0c18 136 OSC0->CR |= OSC_CR_EREFSTEN_MASK;
mbed_official 146:f64d43ff0c18 137 break;
mbed_official 146:f64d43ff0c18 138 #endif
mbed_official 146:f64d43ff0c18 139 #if FSL_FEATURE_OSC_HAS_OSC1
mbed_official 146:f64d43ff0c18 140 case 1:
mbed_official 146:f64d43ff0c18 141 OSC1->CR |= OSC_CR_EREFSTEN_MASK;
mbed_official 146:f64d43ff0c18 142 break;
mbed_official 146:f64d43ff0c18 143 #endif
mbed_official 146:f64d43ff0c18 144 #if FSL_FEATURE_OSC_HAS_OSC
mbed_official 146:f64d43ff0c18 145 case 0:
mbed_official 146:f64d43ff0c18 146 OSC->CR |= OSC_CR_EREFSTEN_MASK;
mbed_official 146:f64d43ff0c18 147 break;
mbed_official 146:f64d43ff0c18 148 #endif
mbed_official 146:f64d43ff0c18 149 default:
mbed_official 146:f64d43ff0c18 150 break;
mbed_official 146:f64d43ff0c18 151 }
mbed_official 146:f64d43ff0c18 152 }
mbed_official 146:f64d43ff0c18 153
mbed_official 146:f64d43ff0c18 154 /*FUNCTION**********************************************************************
mbed_official 146:f64d43ff0c18 155 *
mbed_official 146:f64d43ff0c18 156 * Function Name : osc_hal_disable_external_reference_clock_in_stop_mode
mbed_official 146:f64d43ff0c18 157 * Description : Disable the external reference clock for in stop mode
mbed_official 146:f64d43ff0c18 158 * This function will disable the external reference clock (OSCERCLK) when
mbed_official 146:f64d43ff0c18 159 * MCU enters Stop mode.
mbed_official 146:f64d43ff0c18 160 *
mbed_official 146:f64d43ff0c18 161 *END**************************************************************************/
mbed_official 146:f64d43ff0c18 162 void osc_hal_disable_external_reference_clock_in_stop_mode(osc_instance_t instance)
mbed_official 146:f64d43ff0c18 163 {
mbed_official 146:f64d43ff0c18 164 /* check instance range */
mbed_official 146:f64d43ff0c18 165 assert(instance < FSL_FEATURE_OSC_COUNT);
mbed_official 146:f64d43ff0c18 166
mbed_official 146:f64d43ff0c18 167 /* branch according to instance */
mbed_official 146:f64d43ff0c18 168 switch (instance)
mbed_official 146:f64d43ff0c18 169 {
mbed_official 146:f64d43ff0c18 170 #if FSL_FEATURE_OSC_HAS_OSC0
mbed_official 146:f64d43ff0c18 171 case 0:
mbed_official 146:f64d43ff0c18 172 OSC0->CR &= ~OSC_CR_EREFSTEN_MASK;
mbed_official 146:f64d43ff0c18 173 break;
mbed_official 146:f64d43ff0c18 174 #endif
mbed_official 146:f64d43ff0c18 175 #if FSL_FEATURE_OSC_HAS_OSC1
mbed_official 146:f64d43ff0c18 176 case 1:
mbed_official 146:f64d43ff0c18 177 OSC1->CR &= ~OSC_CR_EREFSTEN_MASK;
mbed_official 146:f64d43ff0c18 178 break;
mbed_official 146:f64d43ff0c18 179 #endif
mbed_official 146:f64d43ff0c18 180 #if FSL_FEATURE_OSC_HAS_OSC
mbed_official 146:f64d43ff0c18 181 case 0:
mbed_official 146:f64d43ff0c18 182 OSC->CR &= ~OSC_CR_EREFSTEN_MASK;
mbed_official 146:f64d43ff0c18 183 break;
mbed_official 146:f64d43ff0c18 184 #endif
mbed_official 146:f64d43ff0c18 185 default:
mbed_official 146:f64d43ff0c18 186 break;
mbed_official 146:f64d43ff0c18 187 }
mbed_official 146:f64d43ff0c18 188 }
mbed_official 146:f64d43ff0c18 189
mbed_official 146:f64d43ff0c18 190 /*FUNCTION**********************************************************************
mbed_official 146:f64d43ff0c18 191 *
mbed_official 146:f64d43ff0c18 192 * Function Name : osc_hal_enable_capacitor_config
mbed_official 146:f64d43ff0c18 193 * Description : Enable the capacitor configuration for oscillator
mbed_official 146:f64d43ff0c18 194 * This function will enable the specified capacitors configuration for the
mbed_official 146:f64d43ff0c18 195 * oscillator. This should be done in early system level init function call
mbed_official 146:f64d43ff0c18 196 * based on system configuration.
mbed_official 146:f64d43ff0c18 197 *
mbed_official 146:f64d43ff0c18 198 *END**************************************************************************/
mbed_official 146:f64d43ff0c18 199 void osc_hal_enable_capacitor_config(osc_instance_t instance, uint32_t capacitorConfigs)
mbed_official 146:f64d43ff0c18 200 {
mbed_official 146:f64d43ff0c18 201 /* check instance range */
mbed_official 146:f64d43ff0c18 202 assert(instance < FSL_FEATURE_OSC_COUNT);
mbed_official 146:f64d43ff0c18 203
mbed_official 146:f64d43ff0c18 204 /* branch according to instance */
mbed_official 146:f64d43ff0c18 205 switch (instance)
mbed_official 146:f64d43ff0c18 206 {
mbed_official 146:f64d43ff0c18 207 #if FSL_FEATURE_OSC_HAS_OSC0
mbed_official 146:f64d43ff0c18 208 case 0:
mbed_official 146:f64d43ff0c18 209 OSC0->CR |= (capacitorConfigs & kOscCapacitorMask);
mbed_official 146:f64d43ff0c18 210 break;
mbed_official 146:f64d43ff0c18 211 #endif
mbed_official 146:f64d43ff0c18 212 #if FSL_FEATURE_OSC_HAS_OSC1
mbed_official 146:f64d43ff0c18 213 case 1:
mbed_official 146:f64d43ff0c18 214 OSC1->CR |= (capacitorConfigs & kOscCapacitorMask);
mbed_official 146:f64d43ff0c18 215 break;
mbed_official 146:f64d43ff0c18 216 #endif
mbed_official 146:f64d43ff0c18 217 #if FSL_FEATURE_OSC_HAS_OSC
mbed_official 146:f64d43ff0c18 218 case 0:
mbed_official 146:f64d43ff0c18 219 OSC->CR |= (capacitorConfigs & kOscCapacitorMask);
mbed_official 146:f64d43ff0c18 220 break;
mbed_official 146:f64d43ff0c18 221 #endif
mbed_official 146:f64d43ff0c18 222 default:
mbed_official 146:f64d43ff0c18 223 break;
mbed_official 146:f64d43ff0c18 224 }
mbed_official 146:f64d43ff0c18 225 }
mbed_official 146:f64d43ff0c18 226
mbed_official 146:f64d43ff0c18 227 /*FUNCTION**********************************************************************
mbed_official 146:f64d43ff0c18 228 *
mbed_official 146:f64d43ff0c18 229 * Function Name : osc_hal_disable_capacitor_config
mbed_official 146:f64d43ff0c18 230 * Description : Disable the capacitor configuration for specific oscillator
mbed_official 146:f64d43ff0c18 231 * This function will enable the specified capacitors configuration for the
mbed_official 146:f64d43ff0c18 232 * oscillator.
mbed_official 146:f64d43ff0c18 233 *
mbed_official 146:f64d43ff0c18 234 *END**************************************************************************/
mbed_official 146:f64d43ff0c18 235 void osc_hal_disable_capacitor_config(osc_instance_t instance, uint32_t capacitorConfigs)
mbed_official 146:f64d43ff0c18 236 {
mbed_official 146:f64d43ff0c18 237 /* check instance range */
mbed_official 146:f64d43ff0c18 238 assert(instance < FSL_FEATURE_OSC_COUNT);
mbed_official 146:f64d43ff0c18 239
mbed_official 146:f64d43ff0c18 240 /* branch according to instance */
mbed_official 146:f64d43ff0c18 241 switch (instance)
mbed_official 146:f64d43ff0c18 242 {
mbed_official 146:f64d43ff0c18 243 #if FSL_FEATURE_OSC_HAS_OSC0
mbed_official 146:f64d43ff0c18 244 case 0:
mbed_official 146:f64d43ff0c18 245 OSC0->CR &= ~(capacitorConfigs & kOscCapacitorMask);
mbed_official 146:f64d43ff0c18 246 break;
mbed_official 146:f64d43ff0c18 247 #endif
mbed_official 146:f64d43ff0c18 248 #if FSL_FEATURE_OSC_HAS_OSC1
mbed_official 146:f64d43ff0c18 249 case 1:
mbed_official 146:f64d43ff0c18 250 OSC1->CR &= ~(capacitorConfigs & kOscCapacitorMask);
mbed_official 146:f64d43ff0c18 251 break;
mbed_official 146:f64d43ff0c18 252 #endif
mbed_official 146:f64d43ff0c18 253 #if FSL_FEATURE_OSC_HAS_OSC
mbed_official 146:f64d43ff0c18 254 case 0:
mbed_official 146:f64d43ff0c18 255 OSC->CR &= ~(capacitorConfigs & kOscCapacitorMask);
mbed_official 146:f64d43ff0c18 256 break;
mbed_official 146:f64d43ff0c18 257 #endif
mbed_official 146:f64d43ff0c18 258 default:
mbed_official 146:f64d43ff0c18 259 break;
mbed_official 146:f64d43ff0c18 260 }
mbed_official 146:f64d43ff0c18 261 }
mbed_official 146:f64d43ff0c18 262
mbed_official 146:f64d43ff0c18 263 /*******************************************************************************
mbed_official 146:f64d43ff0c18 264 * EOF
mbed_official 146:f64d43ff0c18 265 ******************************************************************************/
mbed_official 146:f64d43ff0c18 266