Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_opamp.c@147:ba84b7dc41a7, 2016-09-10 (annotated)

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7 
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /**************************************************************************//**
<> 144:ef7eb2e8f9f7 2 * @file em_opamp.c
<> 144:ef7eb2e8f9f7 3 * @brief Operational Amplifier (OPAMP) peripheral API
<> 144:ef7eb2e8f9f7 4 * @version 4.2.1
<> 144:ef7eb2e8f9f7 5 ******************************************************************************
<> 144:ef7eb2e8f9f7 6 * @section License
<> 144:ef7eb2e8f9f7 7 * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
<> 144:ef7eb2e8f9f7 8 *******************************************************************************
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Permission is granted to anyone to use this software for any purpose,
<> 144:ef7eb2e8f9f7 11 * including commercial applications, and to alter it and redistribute it
<> 144:ef7eb2e8f9f7 12 * freely, subject to the following restrictions:
<> 144:ef7eb2e8f9f7 13 *
<> 144:ef7eb2e8f9f7 14 * 1. The origin of this software must not be misrepresented; you must not
<> 144:ef7eb2e8f9f7 15 * claim that you wrote the original software.
<> 144:ef7eb2e8f9f7 16 * 2. Altered source versions must be plainly marked as such, and must not be
<> 144:ef7eb2e8f9f7 17 * misrepresented as being the original software.
<> 144:ef7eb2e8f9f7 18 * 3. This notice may not be removed or altered from any source distribution.
<> 144:ef7eb2e8f9f7 19 *
<> 144:ef7eb2e8f9f7 20 * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
<> 144:ef7eb2e8f9f7 21 * obligation to support this Software. Silicon Labs is providing the
<> 144:ef7eb2e8f9f7 22 * Software "AS IS", with no express or implied warranties of any kind,
<> 144:ef7eb2e8f9f7 23 * including, but not limited to, any implied warranties of merchantability
<> 144:ef7eb2e8f9f7 24 * or fitness for any particular purpose or warranties against infringement
<> 144:ef7eb2e8f9f7 25 * of any proprietary rights of a third party.
<> 144:ef7eb2e8f9f7 26 *
<> 144:ef7eb2e8f9f7 27 * Silicon Labs will not be liable for any consequential, incidental, or
<> 144:ef7eb2e8f9f7 28 * special damages, or any other relief, or for any claim by any third party,
<> 144:ef7eb2e8f9f7 29 * arising from your use of this Software.
<> 144:ef7eb2e8f9f7 30 *
<> 144:ef7eb2e8f9f7 31 ******************************************************************************/
<> 144:ef7eb2e8f9f7 32
<> 144:ef7eb2e8f9f7 33 #include "em_opamp.h"
<> 144:ef7eb2e8f9f7 34 #if defined(OPAMP_PRESENT) && (OPAMP_COUNT == 1)
<> 144:ef7eb2e8f9f7 35
<> 144:ef7eb2e8f9f7 36 #include "em_system.h"
<> 144:ef7eb2e8f9f7 37 #include "em_assert.h"
<> 144:ef7eb2e8f9f7 38
<> 144:ef7eb2e8f9f7 39 /***************************************************************************//**
<> 144:ef7eb2e8f9f7 40 * @addtogroup EM_Library
<> 144:ef7eb2e8f9f7 41 * @{
<> 144:ef7eb2e8f9f7 42 ******************************************************************************/
<> 144:ef7eb2e8f9f7 43
<> 144:ef7eb2e8f9f7 44
<> 144:ef7eb2e8f9f7 45 /***************************************************************************//**
<> 144:ef7eb2e8f9f7 46 * @addtogroup OPAMP
<> 144:ef7eb2e8f9f7 47 * @brief Operational Amplifier (OPAMP) peripheral API
<> 144:ef7eb2e8f9f7 48 * @details
<> 144:ef7eb2e8f9f7 49 * This module contains functions to:
<> 144:ef7eb2e8f9f7 50 * @li OPAMP_Enable() Configure and enable an opamp.
<> 144:ef7eb2e8f9f7 51 * @li OPAMP_Disable() Disable an opamp.
<> 144:ef7eb2e8f9f7 52 *
<> 144:ef7eb2e8f9f7 53 * All OPAMP functions assume that the DAC clock is running. If the DAC is not
<> 144:ef7eb2e8f9f7 54 * used, the clock can be turned off when the opamp's are configured.
<> 144:ef7eb2e8f9f7 55 *
<> 144:ef7eb2e8f9f7 56 * If the available gain values dont suit the application at hand, the resistor
<> 144:ef7eb2e8f9f7 57 * ladders can be disabled and external gain programming resistors used.
<> 144:ef7eb2e8f9f7 58 *
<> 144:ef7eb2e8f9f7 59 * A number of predefined opamp setup macros are available for configuration
<> 144:ef7eb2e8f9f7 60 * of the most common opamp topologies (see figures below).
<> 144:ef7eb2e8f9f7 61 *
<> 144:ef7eb2e8f9f7 62 * @note
<> 144:ef7eb2e8f9f7 63 * <em>The terms POSPAD and NEGPAD in the figures are used to indicate that these
<> 144:ef7eb2e8f9f7 64 * pads should be connected to a suitable signal ground.</em>
<> 144:ef7eb2e8f9f7 65 *
<> 144:ef7eb2e8f9f7 66 * \n<b>Unity gain voltage follower.</b>\n
<> 144:ef7eb2e8f9f7 67 * Use predefined macros @ref OPA_INIT_UNITY_GAIN and
<> 144:ef7eb2e8f9f7 68 * @ref OPA_INIT_UNITY_GAIN_OPA2.
<> 144:ef7eb2e8f9f7 69 * @verbatim
<> 144:ef7eb2e8f9f7 70
<> 144:ef7eb2e8f9f7 71 |\
<> 144:ef7eb2e8f9f7 72 ___________|+\
<> 144:ef7eb2e8f9f7 73 | \_______
<> 144:ef7eb2e8f9f7 74 ___|_ / |
<> 144:ef7eb2e8f9f7 75 | | / |
<> 144:ef7eb2e8f9f7 76 | |/ |
<> 144:ef7eb2e8f9f7 77 |___________|
<> 144:ef7eb2e8f9f7 78 @endverbatim
<> 144:ef7eb2e8f9f7 79 *
<> 144:ef7eb2e8f9f7 80 * \n<b>Non-inverting amplifier.</b>\n
<> 144:ef7eb2e8f9f7 81 * Use predefined macros @ref OPA_INIT_NON_INVERTING and
<> 144:ef7eb2e8f9f7 82 * @ref OPA_INIT_NON_INVERTING_OPA2.
<> 144:ef7eb2e8f9f7 83 * @verbatim
<> 144:ef7eb2e8f9f7 84
<> 144:ef7eb2e8f9f7 85 |\
<> 144:ef7eb2e8f9f7 86 ___________|+\
<> 144:ef7eb2e8f9f7 87 | \_______
<> 144:ef7eb2e8f9f7 88 ___|_ / |
<> 144:ef7eb2e8f9f7 89 | | / |
<> 144:ef7eb2e8f9f7 90 | |/ |
<> 144:ef7eb2e8f9f7 91 |_____R2____|
<> 144:ef7eb2e8f9f7 92 |
<> 144:ef7eb2e8f9f7 93 R1
<> 144:ef7eb2e8f9f7 94 |
<> 144:ef7eb2e8f9f7 95 NEGPAD @endverbatim
<> 144:ef7eb2e8f9f7 96 *
<> 144:ef7eb2e8f9f7 97 * \n<b>Inverting amplifier.</b>\n
<> 144:ef7eb2e8f9f7 98 * Use predefined macros @ref OPA_INIT_INVERTING and
<> 144:ef7eb2e8f9f7 99 * @ref OPA_INIT_INVERTING_OPA2.
<> 144:ef7eb2e8f9f7 100 * @verbatim
<> 144:ef7eb2e8f9f7 101
<> 144:ef7eb2e8f9f7 102 _____R2____
<> 144:ef7eb2e8f9f7 103 | |
<> 144:ef7eb2e8f9f7 104 | |\ |
<> 144:ef7eb2e8f9f7 105 ____R1_|___|_\ |
<> 144:ef7eb2e8f9f7 106 | \____|___
<> 144:ef7eb2e8f9f7 107 ___| /
<> 144:ef7eb2e8f9f7 108 | |+/
<> 144:ef7eb2e8f9f7 109 | |/
<> 144:ef7eb2e8f9f7 110 |
<> 144:ef7eb2e8f9f7 111 POSPAD @endverbatim
<> 144:ef7eb2e8f9f7 112 *
<> 144:ef7eb2e8f9f7 113 * \n<b>Cascaded non-inverting amplifiers.</b>\n
<> 144:ef7eb2e8f9f7 114 * Use predefined macros @ref OPA_INIT_CASCADED_NON_INVERTING_OPA0,
<> 144:ef7eb2e8f9f7 115 * @ref OPA_INIT_CASCADED_NON_INVERTING_OPA1 and
<> 144:ef7eb2e8f9f7 116 * @ref OPA_INIT_CASCADED_NON_INVERTING_OPA2.
<> 144:ef7eb2e8f9f7 117 * @verbatim
<> 144:ef7eb2e8f9f7 118
<> 144:ef7eb2e8f9f7 119 |\ |\ |\
<> 144:ef7eb2e8f9f7 120 ___________|+\ OPA0 ___________|+\ OPA1 ___________|+\ OPA2
<> 144:ef7eb2e8f9f7 121 | \_________| | \_________| | \_______
<> 144:ef7eb2e8f9f7 122 ___|_ / | ___|_ / | ___|_ / |
<> 144:ef7eb2e8f9f7 123 | | / | | | / | | | / |
<> 144:ef7eb2e8f9f7 124 | |/ | | |/ | | |/ |
<> 144:ef7eb2e8f9f7 125 |_____R2____| |_____R2____| |_____R2____|
<> 144:ef7eb2e8f9f7 126 | | |
<> 144:ef7eb2e8f9f7 127 R1 R1 R1
<> 144:ef7eb2e8f9f7 128 | | |
<> 144:ef7eb2e8f9f7 129 NEGPAD NEGPAD NEGPAD @endverbatim
<> 144:ef7eb2e8f9f7 130 *
<> 144:ef7eb2e8f9f7 131 * \n<b>Cascaded inverting amplifiers.</b>\n
<> 144:ef7eb2e8f9f7 132 * Use predefined macros @ref OPA_INIT_CASCADED_INVERTING_OPA0,
<> 144:ef7eb2e8f9f7 133 * @ref OPA_INIT_CASCADED_INVERTING_OPA1 and
<> 144:ef7eb2e8f9f7 134 * @ref OPA_INIT_CASCADED_INVERTING_OPA2.
<> 144:ef7eb2e8f9f7 135 * @verbatim
<> 144:ef7eb2e8f9f7 136
<> 144:ef7eb2e8f9f7 137 _____R2____ _____R2____ _____R2____
<> 144:ef7eb2e8f9f7 138 | | | | | |
<> 144:ef7eb2e8f9f7 139 | |\ | | |\ | | |\ |
<> 144:ef7eb2e8f9f7 140 ____R1_|___|_\ | ____R1_|___|_\ | ____R1_|___|_\ |
<> 144:ef7eb2e8f9f7 141 | \____|____| | \____|___| | \____|__
<> 144:ef7eb2e8f9f7 142 ___| / ___| / ___| /
<> 144:ef7eb2e8f9f7 143 | |+/ OPA0 | |+/ OPA1 | |+/ OPA2
<> 144:ef7eb2e8f9f7 144 | |/ | |/ | |/
<> 144:ef7eb2e8f9f7 145 | | |
<> 144:ef7eb2e8f9f7 146 POSPAD POSPAD POSPAD @endverbatim
<> 144:ef7eb2e8f9f7 147 *
<> 144:ef7eb2e8f9f7 148 * \n<b>Differential driver with two opamp's.</b>\n
<> 144:ef7eb2e8f9f7 149 * Use predefined macros @ref OPA_INIT_DIFF_DRIVER_OPA0 and
<> 144:ef7eb2e8f9f7 150 * @ref OPA_INIT_DIFF_DRIVER_OPA1.
<> 144:ef7eb2e8f9f7 151 * @verbatim
<> 144:ef7eb2e8f9f7 152
<> 144:ef7eb2e8f9f7 153 __________________________
<> 144:ef7eb2e8f9f7 154 | +
<> 144:ef7eb2e8f9f7 155 | _____R2____
<> 144:ef7eb2e8f9f7 156 |\ | | |
<> 144:ef7eb2e8f9f7 157 ___________|+\ OPA0 | | |\ OPA1 |
<> 144:ef7eb2e8f9f7 158 | \_________|____R1_|___|_\ | _
<> 144:ef7eb2e8f9f7 159 ___|_ / | | \____|______
<> 144:ef7eb2e8f9f7 160 | | / | ___| /
<> 144:ef7eb2e8f9f7 161 | |/ | | |+/
<> 144:ef7eb2e8f9f7 162 |________________| | |/
<> 144:ef7eb2e8f9f7 163 |
<> 144:ef7eb2e8f9f7 164 POSPAD @endverbatim
<> 144:ef7eb2e8f9f7 165 *
<> 144:ef7eb2e8f9f7 166 * \n<b>Differential receiver with three opamp's.</b>\n
<> 144:ef7eb2e8f9f7 167 * Use predefined macros @ref OPA_INIT_DIFF_RECEIVER_OPA0,
<> 144:ef7eb2e8f9f7 168 * @ref OPA_INIT_DIFF_RECEIVER_OPA1 and @ref OPA_INIT_DIFF_RECEIVER_OPA2.
<> 144:ef7eb2e8f9f7 169 * @verbatim
<> 144:ef7eb2e8f9f7 170
<> 144:ef7eb2e8f9f7 171 |\
<> 144:ef7eb2e8f9f7 172 __________|+\ OPA1
<> 144:ef7eb2e8f9f7 173 _ | \_________
<> 144:ef7eb2e8f9f7 174 ___|_ / | | _____R2____
<> 144:ef7eb2e8f9f7 175 | | / | | | |
<> 144:ef7eb2e8f9f7 176 | |/ | | | |\ |
<> 144:ef7eb2e8f9f7 177 |___________| |____R1_|___|_\ |
<> 144:ef7eb2e8f9f7 178 | \____|___
<> 144:ef7eb2e8f9f7 179 |\ ____R1_ ___| /
<> 144:ef7eb2e8f9f7 180 +__________|+\ OPA0 | | |+/ OPA2
<> 144:ef7eb2e8f9f7 181 | \_________| | |/
<> 144:ef7eb2e8f9f7 182 ___|_ / | R2
<> 144:ef7eb2e8f9f7 183 | | / | |
<> 144:ef7eb2e8f9f7 184 | |/ | NEGPAD OPA0
<> 144:ef7eb2e8f9f7 185 |___________|
<> 144:ef7eb2e8f9f7 186 @endverbatim
<> 144:ef7eb2e8f9f7 187 *
<> 144:ef7eb2e8f9f7 188 * @{
<> 144:ef7eb2e8f9f7 189 ******************************************************************************/
<> 144:ef7eb2e8f9f7 190
<> 144:ef7eb2e8f9f7 191 /*******************************************************************************
<> 144:ef7eb2e8f9f7 192 ************************** GLOBAL FUNCTIONS *******************************
<> 144:ef7eb2e8f9f7 193 ******************************************************************************/
<> 144:ef7eb2e8f9f7 194
<> 144:ef7eb2e8f9f7 195 /***************************************************************************//**
<> 144:ef7eb2e8f9f7 196 * @brief
<> 144:ef7eb2e8f9f7 197 * Disable an Operational Amplifier.
<> 144:ef7eb2e8f9f7 198 *
<> 144:ef7eb2e8f9f7 199 * @param[in] dac
<> 144:ef7eb2e8f9f7 200 * Pointer to DAC peripheral register block.
<> 144:ef7eb2e8f9f7 201 *
<> 144:ef7eb2e8f9f7 202 * @param[in] opa
<> 144:ef7eb2e8f9f7 203 * Selects an OPA, valid vaules are @ref OPA0, @ref OPA1 and @ref OPA2.
<> 144:ef7eb2e8f9f7 204 ******************************************************************************/
<> 144:ef7eb2e8f9f7 205 void OPAMP_Disable(DAC_TypeDef *dac, OPAMP_TypeDef opa)
<> 144:ef7eb2e8f9f7 206 {
<> 144:ef7eb2e8f9f7 207 EFM_ASSERT(DAC_REF_VALID(dac));
<> 144:ef7eb2e8f9f7 208 EFM_ASSERT(DAC_OPA_VALID(opa));
<> 144:ef7eb2e8f9f7 209
<> 144:ef7eb2e8f9f7 210 if (opa == OPA0)
<> 144:ef7eb2e8f9f7 211 {
<> 144:ef7eb2e8f9f7 212 dac->CH0CTRL &= ~DAC_CH0CTRL_EN;
<> 144:ef7eb2e8f9f7 213 dac->OPACTRL &= ~DAC_OPACTRL_OPA0EN;
<> 144:ef7eb2e8f9f7 214 }
<> 144:ef7eb2e8f9f7 215 else if (opa == OPA1)
<> 144:ef7eb2e8f9f7 216 {
<> 144:ef7eb2e8f9f7 217 dac->CH1CTRL &= ~DAC_CH1CTRL_EN;
<> 144:ef7eb2e8f9f7 218 dac->OPACTRL &= ~DAC_OPACTRL_OPA1EN;
<> 144:ef7eb2e8f9f7 219 }
<> 144:ef7eb2e8f9f7 220 else /* OPA2 */
<> 144:ef7eb2e8f9f7 221 {
<> 144:ef7eb2e8f9f7 222 dac->OPACTRL &= ~DAC_OPACTRL_OPA2EN;
<> 144:ef7eb2e8f9f7 223 }
<> 144:ef7eb2e8f9f7 224 }
<> 144:ef7eb2e8f9f7 225
<> 144:ef7eb2e8f9f7 226
<> 144:ef7eb2e8f9f7 227 /***************************************************************************//**
<> 144:ef7eb2e8f9f7 228 * @brief
<> 144:ef7eb2e8f9f7 229 * Configure and enable an Operational Amplifier.
<> 144:ef7eb2e8f9f7 230 *
<> 144:ef7eb2e8f9f7 231 * @note
<> 144:ef7eb2e8f9f7 232 * The value of the alternate output enable bit mask in the OPAMP_Init_TypeDef
<> 144:ef7eb2e8f9f7 233 * structure should consist of one or more of the
<> 144:ef7eb2e8f9f7 234 * DAC_OPA[opa#]MUX_OUTPEN_OUT[output#] flags
<> 144:ef7eb2e8f9f7 235 * (defined in \<part_name\>_dac.h) OR'ed together. @n @n
<> 144:ef7eb2e8f9f7 236 * For OPA0:
<> 144:ef7eb2e8f9f7 237 * @li DAC_OPA0MUX_OUTPEN_OUT0
<> 144:ef7eb2e8f9f7 238 * @li DAC_OPA0MUX_OUTPEN_OUT1
<> 144:ef7eb2e8f9f7 239 * @li DAC_OPA0MUX_OUTPEN_OUT2
<> 144:ef7eb2e8f9f7 240 * @li DAC_OPA0MUX_OUTPEN_OUT3
<> 144:ef7eb2e8f9f7 241 * @li DAC_OPA0MUX_OUTPEN_OUT4
<> 144:ef7eb2e8f9f7 242 *
<> 144:ef7eb2e8f9f7 243 * For OPA1:
<> 144:ef7eb2e8f9f7 244 * @li DAC_OPA1MUX_OUTPEN_OUT0
<> 144:ef7eb2e8f9f7 245 * @li DAC_OPA1MUX_OUTPEN_OUT1
<> 144:ef7eb2e8f9f7 246 * @li DAC_OPA1MUX_OUTPEN_OUT2
<> 144:ef7eb2e8f9f7 247 * @li DAC_OPA1MUX_OUTPEN_OUT3
<> 144:ef7eb2e8f9f7 248 * @li DAC_OPA1MUX_OUTPEN_OUT4
<> 144:ef7eb2e8f9f7 249 *
<> 144:ef7eb2e8f9f7 250 * For OPA2:
<> 144:ef7eb2e8f9f7 251 * @li DAC_OPA2MUX_OUTPEN_OUT0
<> 144:ef7eb2e8f9f7 252 * @li DAC_OPA2MUX_OUTPEN_OUT1
<> 144:ef7eb2e8f9f7 253 *
<> 144:ef7eb2e8f9f7 254 * E.g: @n
<> 144:ef7eb2e8f9f7 255 * init.outPen = DAC_OPA0MUX_OUTPEN_OUT0 | DAC_OPA0MUX_OUTPEN_OUT4;
<> 144:ef7eb2e8f9f7 256 *
<> 144:ef7eb2e8f9f7 257 * @param[in] dac
<> 144:ef7eb2e8f9f7 258 * Pointer to DAC peripheral register block.
<> 144:ef7eb2e8f9f7 259 *
<> 144:ef7eb2e8f9f7 260 * @param[in] opa
<> 144:ef7eb2e8f9f7 261 * Selects an OPA, valid vaules are @ref OPA0, @ref OPA1 and @ref OPA2.
<> 144:ef7eb2e8f9f7 262 *
<> 144:ef7eb2e8f9f7 263 * @param[in] init
<> 144:ef7eb2e8f9f7 264 * Pointer to a structure containing OPAMP init information.
<> 144:ef7eb2e8f9f7 265 ******************************************************************************/
<> 144:ef7eb2e8f9f7 266 void OPAMP_Enable(DAC_TypeDef *dac, OPAMP_TypeDef opa, const OPAMP_Init_TypeDef *init)
<> 144:ef7eb2e8f9f7 267 {
<> 144:ef7eb2e8f9f7 268 uint32_t offset;
<> 144:ef7eb2e8f9f7 269
<> 144:ef7eb2e8f9f7 270 EFM_ASSERT(DAC_REF_VALID(dac));
<> 144:ef7eb2e8f9f7 271 EFM_ASSERT(DAC_OPA_VALID(opa));
<> 144:ef7eb2e8f9f7 272 EFM_ASSERT(init->bias <= (_DAC_BIASPROG_BIASPROG_MASK
<> 144:ef7eb2e8f9f7 273 >> _DAC_BIASPROG_BIASPROG_SHIFT));
<> 144:ef7eb2e8f9f7 274
<> 144:ef7eb2e8f9f7 275 if (opa == OPA0)
<> 144:ef7eb2e8f9f7 276 {
<> 144:ef7eb2e8f9f7 277 EFM_ASSERT((init->outPen & ~_DAC_OPA0MUX_OUTPEN_MASK) == 0);
<> 144:ef7eb2e8f9f7 278
<> 144:ef7eb2e8f9f7 279 dac->BIASPROG = (dac->BIASPROG
<> 144:ef7eb2e8f9f7 280 & ~(_DAC_BIASPROG_BIASPROG_MASK
<> 144:ef7eb2e8f9f7 281 | DAC_BIASPROG_HALFBIAS))
<> 144:ef7eb2e8f9f7 282 | (init->bias << _DAC_BIASPROG_BIASPROG_SHIFT)
<> 144:ef7eb2e8f9f7 283 | (init->halfBias ? DAC_BIASPROG_HALFBIAS : 0);
<> 144:ef7eb2e8f9f7 284
<> 144:ef7eb2e8f9f7 285 if (init->defaultOffset)
<> 144:ef7eb2e8f9f7 286 {
<> 144:ef7eb2e8f9f7 287 offset = SYSTEM_GetCalibrationValue(&dac->CAL);
<> 144:ef7eb2e8f9f7 288 dac->CAL = (dac->CAL & ~_DAC_CAL_CH0OFFSET_MASK)
<> 144:ef7eb2e8f9f7 289 | (offset & _DAC_CAL_CH0OFFSET_MASK);
<> 144:ef7eb2e8f9f7 290 }
<> 144:ef7eb2e8f9f7 291 else
<> 144:ef7eb2e8f9f7 292 {
<> 144:ef7eb2e8f9f7 293 EFM_ASSERT(init->offset <= (_DAC_CAL_CH0OFFSET_MASK
<> 144:ef7eb2e8f9f7 294 >> _DAC_CAL_CH0OFFSET_SHIFT));
<> 144:ef7eb2e8f9f7 295
<> 144:ef7eb2e8f9f7 296 dac->CAL = (dac->CAL & ~_DAC_CAL_CH0OFFSET_MASK)
<> 144:ef7eb2e8f9f7 297 | (init->offset << _DAC_CAL_CH0OFFSET_SHIFT);
<> 144:ef7eb2e8f9f7 298 }
<> 144:ef7eb2e8f9f7 299
<> 144:ef7eb2e8f9f7 300 dac->OPA0MUX = (uint32_t)init->resSel
<> 144:ef7eb2e8f9f7 301 | (uint32_t)init->outMode
<> 144:ef7eb2e8f9f7 302 | init->outPen
<> 144:ef7eb2e8f9f7 303 | (uint32_t)init->resInMux
<> 144:ef7eb2e8f9f7 304 | (uint32_t)init->negSel
<> 144:ef7eb2e8f9f7 305 | (uint32_t)init->posSel
<> 144:ef7eb2e8f9f7 306 | ( init->nextOut ? DAC_OPA0MUX_NEXTOUT : 0)
<> 144:ef7eb2e8f9f7 307 | ( init->npEn ? DAC_OPA0MUX_NPEN : 0)
<> 144:ef7eb2e8f9f7 308 | ( init->ppEn ? DAC_OPA0MUX_PPEN : 0);
<> 144:ef7eb2e8f9f7 309
<> 144:ef7eb2e8f9f7 310 dac->CH0CTRL |= DAC_CH0CTRL_EN;
<> 144:ef7eb2e8f9f7 311 dac->OPACTRL = (dac->OPACTRL
<> 144:ef7eb2e8f9f7 312 & ~(DAC_OPACTRL_OPA0SHORT
<> 144:ef7eb2e8f9f7 313 | _DAC_OPACTRL_OPA0LPFDIS_MASK
<> 144:ef7eb2e8f9f7 314 | DAC_OPACTRL_OPA0HCMDIS))
<> 144:ef7eb2e8f9f7 315 | (init->shortInputs ? DAC_OPACTRL_OPA0SHORT : 0)
<> 144:ef7eb2e8f9f7 316 | (init->lpfPosPadDisable
<> 144:ef7eb2e8f9f7 317 ? DAC_OPACTRL_OPA0LPFDIS_PLPFDIS : 0)
<> 144:ef7eb2e8f9f7 318 | (init->lpfNegPadDisable
<> 144:ef7eb2e8f9f7 319 ? DAC_OPACTRL_OPA0LPFDIS_NLPFDIS : 0)
<> 144:ef7eb2e8f9f7 320 | (init->hcmDisable ? DAC_OPACTRL_OPA0HCMDIS : 0)
<> 144:ef7eb2e8f9f7 321 | DAC_OPACTRL_OPA0EN;
<> 144:ef7eb2e8f9f7 322 }
<> 144:ef7eb2e8f9f7 323 else if ( opa == OPA1 )
<> 144:ef7eb2e8f9f7 324 {
<> 144:ef7eb2e8f9f7 325 EFM_ASSERT((init->outPen & ~_DAC_OPA1MUX_OUTPEN_MASK) == 0);
<> 144:ef7eb2e8f9f7 326
<> 144:ef7eb2e8f9f7 327 dac->BIASPROG = (dac->BIASPROG
<> 144:ef7eb2e8f9f7 328 & ~(_DAC_BIASPROG_BIASPROG_MASK
<> 144:ef7eb2e8f9f7 329 | DAC_BIASPROG_HALFBIAS))
<> 144:ef7eb2e8f9f7 330 | (init->bias << _DAC_BIASPROG_BIASPROG_SHIFT)
<> 144:ef7eb2e8f9f7 331 | (init->halfBias ? DAC_BIASPROG_HALFBIAS : 0 );
<> 144:ef7eb2e8f9f7 332
<> 144:ef7eb2e8f9f7 333 if (init->defaultOffset)
<> 144:ef7eb2e8f9f7 334 {
<> 144:ef7eb2e8f9f7 335 offset = SYSTEM_GetCalibrationValue(&dac->CAL);
<> 144:ef7eb2e8f9f7 336 dac->CAL = (dac->CAL & ~_DAC_CAL_CH1OFFSET_MASK)
<> 144:ef7eb2e8f9f7 337 | (offset & _DAC_CAL_CH1OFFSET_MASK);
<> 144:ef7eb2e8f9f7 338 }
<> 144:ef7eb2e8f9f7 339 else
<> 144:ef7eb2e8f9f7 340 {
<> 144:ef7eb2e8f9f7 341 EFM_ASSERT(init->offset <= (_DAC_CAL_CH1OFFSET_MASK
<> 144:ef7eb2e8f9f7 342 >> _DAC_CAL_CH1OFFSET_SHIFT));
<> 144:ef7eb2e8f9f7 343
<> 144:ef7eb2e8f9f7 344 dac->CAL = (dac->CAL & ~_DAC_CAL_CH1OFFSET_MASK)
<> 144:ef7eb2e8f9f7 345 | (init->offset << _DAC_CAL_CH1OFFSET_SHIFT);
<> 144:ef7eb2e8f9f7 346 }
<> 144:ef7eb2e8f9f7 347
<> 144:ef7eb2e8f9f7 348 dac->OPA1MUX = (uint32_t)init->resSel
<> 144:ef7eb2e8f9f7 349 | (uint32_t)init->outMode
<> 144:ef7eb2e8f9f7 350 | init->outPen
<> 144:ef7eb2e8f9f7 351 | (uint32_t)init->resInMux
<> 144:ef7eb2e8f9f7 352 | (uint32_t)init->negSel
<> 144:ef7eb2e8f9f7 353 | (uint32_t)init->posSel
<> 144:ef7eb2e8f9f7 354 | (init->nextOut ? DAC_OPA1MUX_NEXTOUT : 0)
<> 144:ef7eb2e8f9f7 355 | (init->npEn ? DAC_OPA1MUX_NPEN : 0)
<> 144:ef7eb2e8f9f7 356 | (init->ppEn ? DAC_OPA1MUX_PPEN : 0);
<> 144:ef7eb2e8f9f7 357
<> 144:ef7eb2e8f9f7 358 dac->CH1CTRL |= DAC_CH1CTRL_EN;
<> 144:ef7eb2e8f9f7 359 dac->OPACTRL = (dac->OPACTRL
<> 144:ef7eb2e8f9f7 360 & ~(DAC_OPACTRL_OPA1SHORT
<> 144:ef7eb2e8f9f7 361 | _DAC_OPACTRL_OPA1LPFDIS_MASK
<> 144:ef7eb2e8f9f7 362 | DAC_OPACTRL_OPA1HCMDIS))
<> 144:ef7eb2e8f9f7 363 | (init->shortInputs ? DAC_OPACTRL_OPA1SHORT : 0)
<> 144:ef7eb2e8f9f7 364 | (init->lpfPosPadDisable
<> 144:ef7eb2e8f9f7 365 ? DAC_OPACTRL_OPA1LPFDIS_PLPFDIS : 0)
<> 144:ef7eb2e8f9f7 366 | (init->lpfNegPadDisable
<> 144:ef7eb2e8f9f7 367 ? DAC_OPACTRL_OPA1LPFDIS_NLPFDIS : 0)
<> 144:ef7eb2e8f9f7 368 | (init->hcmDisable ? DAC_OPACTRL_OPA1HCMDIS : 0)
<> 144:ef7eb2e8f9f7 369 | DAC_OPACTRL_OPA1EN;
<> 144:ef7eb2e8f9f7 370 }
<> 144:ef7eb2e8f9f7 371 else /* OPA2 */
<> 144:ef7eb2e8f9f7 372 {
<> 144:ef7eb2e8f9f7 373 EFM_ASSERT((init->posSel == DAC_OPA2MUX_POSSEL_DISABLE)
<> 144:ef7eb2e8f9f7 374 || (init->posSel == DAC_OPA2MUX_POSSEL_POSPAD)
<> 144:ef7eb2e8f9f7 375 || (init->posSel == DAC_OPA2MUX_POSSEL_OPA1INP)
<> 144:ef7eb2e8f9f7 376 || (init->posSel == DAC_OPA2MUX_POSSEL_OPATAP));
<> 144:ef7eb2e8f9f7 377
<> 144:ef7eb2e8f9f7 378 EFM_ASSERT((init->outMode & ~DAC_OPA2MUX_OUTMODE) == 0);
<> 144:ef7eb2e8f9f7 379
<> 144:ef7eb2e8f9f7 380 EFM_ASSERT((init->outPen & ~_DAC_OPA2MUX_OUTPEN_MASK) == 0);
<> 144:ef7eb2e8f9f7 381
<> 144:ef7eb2e8f9f7 382 dac->BIASPROG = (dac->BIASPROG
<> 144:ef7eb2e8f9f7 383 & ~(_DAC_BIASPROG_OPA2BIASPROG_MASK
<> 144:ef7eb2e8f9f7 384 | DAC_BIASPROG_OPA2HALFBIAS))
<> 144:ef7eb2e8f9f7 385 | (init->bias << _DAC_BIASPROG_OPA2BIASPROG_SHIFT)
<> 144:ef7eb2e8f9f7 386 | (init->halfBias ? DAC_BIASPROG_OPA2HALFBIAS : 0);
<> 144:ef7eb2e8f9f7 387
<> 144:ef7eb2e8f9f7 388 if (init->defaultOffset)
<> 144:ef7eb2e8f9f7 389 {
<> 144:ef7eb2e8f9f7 390 offset = SYSTEM_GetCalibrationValue(&dac->OPAOFFSET);
<> 144:ef7eb2e8f9f7 391 dac->OPAOFFSET = (dac->OPAOFFSET & ~_DAC_OPAOFFSET_OPA2OFFSET_MASK)
<> 144:ef7eb2e8f9f7 392 | (offset & _DAC_OPAOFFSET_OPA2OFFSET_MASK);
<> 144:ef7eb2e8f9f7 393 }
<> 144:ef7eb2e8f9f7 394 else
<> 144:ef7eb2e8f9f7 395 {
<> 144:ef7eb2e8f9f7 396 EFM_ASSERT(init->offset <= (_DAC_OPAOFFSET_OPA2OFFSET_MASK
<> 144:ef7eb2e8f9f7 397 >> _DAC_OPAOFFSET_OPA2OFFSET_SHIFT));
<> 144:ef7eb2e8f9f7 398 dac->OPAOFFSET = (dac->OPAOFFSET & ~_DAC_OPAOFFSET_OPA2OFFSET_MASK)
<> 144:ef7eb2e8f9f7 399 | (init->offset << _DAC_OPAOFFSET_OPA2OFFSET_SHIFT);
<> 144:ef7eb2e8f9f7 400 }
<> 144:ef7eb2e8f9f7 401
<> 144:ef7eb2e8f9f7 402 dac->OPA2MUX = (uint32_t)init->resSel
<> 144:ef7eb2e8f9f7 403 | (uint32_t)init->outMode
<> 144:ef7eb2e8f9f7 404 | init->outPen
<> 144:ef7eb2e8f9f7 405 | (uint32_t)init->resInMux
<> 144:ef7eb2e8f9f7 406 | (uint32_t)init->negSel
<> 144:ef7eb2e8f9f7 407 | (uint32_t)init->posSel
<> 144:ef7eb2e8f9f7 408 | ( init->nextOut ? DAC_OPA2MUX_NEXTOUT : 0 )
<> 144:ef7eb2e8f9f7 409 | ( init->npEn ? DAC_OPA2MUX_NPEN : 0 )
<> 144:ef7eb2e8f9f7 410 | ( init->ppEn ? DAC_OPA2MUX_PPEN : 0 );
<> 144:ef7eb2e8f9f7 411
<> 144:ef7eb2e8f9f7 412 dac->OPACTRL = (dac->OPACTRL
<> 144:ef7eb2e8f9f7 413 & ~(DAC_OPACTRL_OPA2SHORT
<> 144:ef7eb2e8f9f7 414 | _DAC_OPACTRL_OPA2LPFDIS_MASK
<> 144:ef7eb2e8f9f7 415 | DAC_OPACTRL_OPA2HCMDIS))
<> 144:ef7eb2e8f9f7 416 | (init->shortInputs ? DAC_OPACTRL_OPA2SHORT : 0)
<> 144:ef7eb2e8f9f7 417 | (init->lpfPosPadDisable
<> 144:ef7eb2e8f9f7 418 ? DAC_OPACTRL_OPA2LPFDIS_PLPFDIS : 0)
<> 144:ef7eb2e8f9f7 419 | (init->lpfNegPadDisable
<> 144:ef7eb2e8f9f7 420 ? DAC_OPACTRL_OPA2LPFDIS_NLPFDIS : 0)
<> 144:ef7eb2e8f9f7 421 | (init->hcmDisable ? DAC_OPACTRL_OPA2HCMDIS : 0)
<> 144:ef7eb2e8f9f7 422 | DAC_OPACTRL_OPA2EN;
<> 144:ef7eb2e8f9f7 423 }
<> 144:ef7eb2e8f9f7 424 }
<> 144:ef7eb2e8f9f7 425
<> 144:ef7eb2e8f9f7 426 /** @} (end addtogroup OPAMP) */
<> 144:ef7eb2e8f9f7 427 /** @} (end addtogroup EM_Library) */
<> 144:ef7eb2e8f9f7 428
<> 144:ef7eb2e8f9f7 429 #endif /* defined( OPAMP_PRESENT ) && ( OPAMP_COUNT == 1 ) */