Sergey Solodunov
mbed library sources. Supersedes mbed-src.
Fork of
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mbed official
targets/hal/TARGET_Atmel/TARGET_SAM_CortexM0P/drivers/adc/TARGET_SAML21/adc.c@18:da299f395b9e, 2015-11-09 (annotated)
- Committer:
- mbed_official
- Date:
- Mon Nov 09 13:30:11 2015 +0000
- Revision:
- 18:da299f395b9e
Synchronized with git revision f605825f66bb2e462ff7dbc5fb4ed2dbe979d1c3
Full URL: https://github.com/mbedmicro/mbed/commit/f605825f66bb2e462ff7dbc5fb4ed2dbe979d1c3/
Added support for SAML21
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 18:da299f395b9e | 1 | /** |
| mbed_official | 18:da299f395b9e | 2 | * \file |
| mbed_official | 18:da299f395b9e | 3 | * |
| mbed_official | 18:da299f395b9e | 4 | * \brief SAM Peripheral Analog-to-Digital Converter Driver |
| mbed_official | 18:da299f395b9e | 5 | * |
| mbed_official | 18:da299f395b9e | 6 | * Copyright (C) 2014-2015 Atmel Corporation. All rights reserved. |
| mbed_official | 18:da299f395b9e | 7 | * |
| mbed_official | 18:da299f395b9e | 8 | * \asf_license_start |
| mbed_official | 18:da299f395b9e | 9 | * |
| mbed_official | 18:da299f395b9e | 10 | * \page License |
| mbed_official | 18:da299f395b9e | 11 | * |
| mbed_official | 18:da299f395b9e | 12 | * Redistribution and use in source and binary forms, with or without |
| mbed_official | 18:da299f395b9e | 13 | * modification, are permitted provided that the following conditions are met: |
| mbed_official | 18:da299f395b9e | 14 | * |
| mbed_official | 18:da299f395b9e | 15 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 18:da299f395b9e | 16 | * this list of conditions and the following disclaimer. |
| mbed_official | 18:da299f395b9e | 17 | * |
| mbed_official | 18:da299f395b9e | 18 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 18:da299f395b9e | 19 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 18:da299f395b9e | 20 | * and/or other materials provided with the distribution. |
| mbed_official | 18:da299f395b9e | 21 | * |
| mbed_official | 18:da299f395b9e | 22 | * 3. The name of Atmel may not be used to endorse or promote products derived |
| mbed_official | 18:da299f395b9e | 23 | * from this software without specific prior written permission. |
| mbed_official | 18:da299f395b9e | 24 | * |
| mbed_official | 18:da299f395b9e | 25 | * 4. This software may only be redistributed and used in connection with an |
| mbed_official | 18:da299f395b9e | 26 | * Atmel microcontroller product. |
| mbed_official | 18:da299f395b9e | 27 | * |
| mbed_official | 18:da299f395b9e | 28 | * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED |
| mbed_official | 18:da299f395b9e | 29 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| mbed_official | 18:da299f395b9e | 30 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE |
| mbed_official | 18:da299f395b9e | 31 | * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR |
| mbed_official | 18:da299f395b9e | 32 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 18:da299f395b9e | 33 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| mbed_official | 18:da299f395b9e | 34 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| mbed_official | 18:da299f395b9e | 35 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| mbed_official | 18:da299f395b9e | 36 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| mbed_official | 18:da299f395b9e | 37 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| mbed_official | 18:da299f395b9e | 38 | * POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 18:da299f395b9e | 39 | * |
| mbed_official | 18:da299f395b9e | 40 | * \asf_license_stop |
| mbed_official | 18:da299f395b9e | 41 | * |
| mbed_official | 18:da299f395b9e | 42 | */ |
| mbed_official | 18:da299f395b9e | 43 | /* |
| mbed_official | 18:da299f395b9e | 44 | * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a> |
| mbed_official | 18:da299f395b9e | 45 | */ |
| mbed_official | 18:da299f395b9e | 46 | |
| mbed_official | 18:da299f395b9e | 47 | #include "adc.h" |
| mbed_official | 18:da299f395b9e | 48 | #if (ADC_INST_NUM > 1) || (SAMC20) |
| mbed_official | 18:da299f395b9e | 49 | |
| mbed_official | 18:da299f395b9e | 50 | # define _ADC_GCLK_ID(n,unused) TPASTE3(ADC,n,_GCLK_ID), |
| mbed_official | 18:da299f395b9e | 51 | # define _ADC_APBCMASK(n,unused) TPASTE2(MCLK_APBCMASK_ADC,n), |
| mbed_official | 18:da299f395b9e | 52 | |
| mbed_official | 18:da299f395b9e | 53 | # define _ADC_FUSES_BIASCOMP_ADDR(n,unused) TPASTE3(ADC,n,_FUSES_BIASCOMP_ADDR), |
| mbed_official | 18:da299f395b9e | 54 | # define _ADC_FUSES_BIASCOMP_Pos(n,unused) TPASTE3(ADC,n,_FUSES_BIASCOMP_Pos), |
| mbed_official | 18:da299f395b9e | 55 | # define _ADC_FUSES_BIASREFBUF_ADDR(n,unused) TPASTE3(ADC,n,_FUSES_BIASREFBUF_ADDR), |
| mbed_official | 18:da299f395b9e | 56 | # define _ADC_FUSES_BIASREFBUF_Pos(n,unused) TPASTE3(ADC,n,_FUSES_BIASREFBUF_Pos), |
| mbed_official | 18:da299f395b9e | 57 | # define _ADC_EXTCHANNEL_MSB(n,unused) TPASTE3(ADC,n,_EXTCHANNEL_MSB), |
| mbed_official | 18:da299f395b9e | 58 | |
| mbed_official | 18:da299f395b9e | 59 | # define ADC_GCLK_ID MREPEAT(ADC_INST_NUM, _ADC_GCLK_ID, 0) |
| mbed_official | 18:da299f395b9e | 60 | # define ADC_APBCMASKS MREPEAT(ADC_INST_NUM, _ADC_APBCMASK, 0) |
| mbed_official | 18:da299f395b9e | 61 | |
| mbed_official | 18:da299f395b9e | 62 | # define ADC_FUSES_BIASCOMP_ADDR MREPEAT(ADC_INST_NUM, _ADC_FUSES_BIASCOMP_ADDR, 0) |
| mbed_official | 18:da299f395b9e | 63 | # define ADC_FUSES_BIASCOMP_Pos MREPEAT(ADC_INST_NUM, _ADC_FUSES_BIASCOMP_Pos, 0) |
| mbed_official | 18:da299f395b9e | 64 | # define ADC_FUSES_BIASREFBUF_ADDR MREPEAT(ADC_INST_NUM, _ADC_FUSES_BIASREFBUF_ADDR, 0) |
| mbed_official | 18:da299f395b9e | 65 | # define ADC_FUSES_BIASREFBUF_Pos MREPEAT(ADC_INST_NUM, _ADC_FUSES_BIASREFBUF_Pos, 0) |
| mbed_official | 18:da299f395b9e | 66 | # define ADC_EXTCHANNEL_MSB MREPEAT(ADC_INST_NUM, _ADC_EXTCHANNEL_MSB, 0) |
| mbed_official | 18:da299f395b9e | 67 | |
| mbed_official | 18:da299f395b9e | 68 | #endif |
| mbed_official | 18:da299f395b9e | 69 | |
| mbed_official | 18:da299f395b9e | 70 | /* List of ADC GCLK IDs */ |
| mbed_official | 18:da299f395b9e | 71 | const uint8_t _adc_gclk_ids[ADC_INST_NUM] = { ADC_GCLK_ID }; |
| mbed_official | 18:da299f395b9e | 72 | |
| mbed_official | 18:da299f395b9e | 73 | /* List of ADC APB Masks */ |
| mbed_official | 18:da299f395b9e | 74 | #if (SAML21) |
| mbed_official | 18:da299f395b9e | 75 | const uint32_t _adc_apbcmasks[ADC_INST_NUM] = { MCLK_APBDMASK_ADC }; |
| mbed_official | 18:da299f395b9e | 76 | #else |
| mbed_official | 18:da299f395b9e | 77 | const uint32_t _adc_apbcmasks[ADC_INST_NUM] = { ADC_APBCMASKS }; |
| mbed_official | 18:da299f395b9e | 78 | #endif |
| mbed_official | 18:da299f395b9e | 79 | |
| mbed_official | 18:da299f395b9e | 80 | /* List of Number of external channels of ADC modules. */ |
| mbed_official | 18:da299f395b9e | 81 | const uint32_t _adc_extchannel_msb[ADC_INST_NUM] = { ADC_EXTCHANNEL_MSB }; |
| mbed_official | 18:da299f395b9e | 82 | |
| mbed_official | 18:da299f395b9e | 83 | /* List of address of comparator scaling of ADC modules. */ |
| mbed_official | 18:da299f395b9e | 84 | const uint32_t _adc_biascomp_addr[ADC_INST_NUM] = { ADC_FUSES_BIASCOMP_ADDR }; |
| mbed_official | 18:da299f395b9e | 85 | |
| mbed_official | 18:da299f395b9e | 86 | /* List of address of bias reference buffer scaling of ADC modules. */ |
| mbed_official | 18:da299f395b9e | 87 | const uint32_t _adc_biasrefbuf_addr[ADC_INST_NUM] = { ADC_FUSES_BIASREFBUF_ADDR }; |
| mbed_official | 18:da299f395b9e | 88 | |
| mbed_official | 18:da299f395b9e | 89 | /* List of offset of comparator scaling of ADC modules. */ |
| mbed_official | 18:da299f395b9e | 90 | const uint8_t _adc_biascomp_pos[ADC_INST_NUM] = { ADC_FUSES_BIASCOMP_Pos }; |
| mbed_official | 18:da299f395b9e | 91 | |
| mbed_official | 18:da299f395b9e | 92 | /* List of offset of bias reference buffer scaling of ADC modules. */ |
| mbed_official | 18:da299f395b9e | 93 | const uint8_t _adc_biasrefbuf_pos[ADC_INST_NUM] = { ADC_FUSES_BIASREFBUF_Pos }; |
| mbed_official | 18:da299f395b9e | 94 | |
| mbed_official | 18:da299f395b9e | 95 | |
| mbed_official | 18:da299f395b9e | 96 | /** |
| mbed_official | 18:da299f395b9e | 97 | * \internal Find the index of given ADC module instance. |
| mbed_official | 18:da299f395b9e | 98 | * |
| mbed_official | 18:da299f395b9e | 99 | * \param[in] ADC module instance pointer. |
| mbed_official | 18:da299f395b9e | 100 | * |
| mbed_official | 18:da299f395b9e | 101 | * \return Index of the given ADC module instance. |
| mbed_official | 18:da299f395b9e | 102 | */ |
| mbed_official | 18:da299f395b9e | 103 | uint8_t _adc_get_inst_index( |
| mbed_official | 18:da299f395b9e | 104 | Adc *const hw) |
| mbed_official | 18:da299f395b9e | 105 | { |
| mbed_official | 18:da299f395b9e | 106 | /* List of available ADC modules. */ |
| mbed_official | 18:da299f395b9e | 107 | Adc *const adc_modules[ADC_INST_NUM] = ADC_INSTS; |
| mbed_official | 18:da299f395b9e | 108 | |
| mbed_official | 18:da299f395b9e | 109 | /* Find index for ADC instance. */ |
| mbed_official | 18:da299f395b9e | 110 | for (uint32_t i = 0; i < ADC_INST_NUM; i++) { |
| mbed_official | 18:da299f395b9e | 111 | if (hw == adc_modules[i]) { |
| mbed_official | 18:da299f395b9e | 112 | return i; |
| mbed_official | 18:da299f395b9e | 113 | } |
| mbed_official | 18:da299f395b9e | 114 | } |
| mbed_official | 18:da299f395b9e | 115 | |
| mbed_official | 18:da299f395b9e | 116 | /* Invalid data given. */ |
| mbed_official | 18:da299f395b9e | 117 | Assert(false); |
| mbed_official | 18:da299f395b9e | 118 | return 0; |
| mbed_official | 18:da299f395b9e | 119 | } |
| mbed_official | 18:da299f395b9e | 120 | |
| mbed_official | 18:da299f395b9e | 121 | /** |
| mbed_official | 18:da299f395b9e | 122 | * \brief Initializes an ADC configuration structure to defaults. |
| mbed_official | 18:da299f395b9e | 123 | * |
| mbed_official | 18:da299f395b9e | 124 | * Initializes a given ADC configuration struct to a set of known default |
| mbed_official | 18:da299f395b9e | 125 | * values. This function should be called on any new instance of the |
| mbed_official | 18:da299f395b9e | 126 | * configuration struct before being modified by the user application. |
| mbed_official | 18:da299f395b9e | 127 | * |
| mbed_official | 18:da299f395b9e | 128 | * The default configuration is as follows: |
| mbed_official | 18:da299f395b9e | 129 | * \li GCLK generator 0 (GCLK main) clock source |
| mbed_official | 18:da299f395b9e | 130 | * \li Internal bandgap reference |
| mbed_official | 18:da299f395b9e | 131 | * \li Div 2 clock prescaler |
| mbed_official | 18:da299f395b9e | 132 | * \li 12-bit resolution |
| mbed_official | 18:da299f395b9e | 133 | * \li Window monitor disabled |
| mbed_official | 18:da299f395b9e | 134 | * \li Positive input on ADC PIN 1 |
| mbed_official | 18:da299f395b9e | 135 | * \li Negative input on Internal ground |
| mbed_official | 18:da299f395b9e | 136 | * \li Averaging disabled |
| mbed_official | 18:da299f395b9e | 137 | * \li Oversampling disabled |
| mbed_official | 18:da299f395b9e | 138 | * \li Right adjust data |
| mbed_official | 18:da299f395b9e | 139 | * \li Single-ended mode |
| mbed_official | 18:da299f395b9e | 140 | * \li Free running disabled |
| mbed_official | 18:da299f395b9e | 141 | * \li All events (input and generation) disabled |
| mbed_official | 18:da299f395b9e | 142 | * \li ADC run in standby disabled |
| mbed_official | 18:da299f395b9e | 143 | * \li ADC On demand disabled |
| mbed_official | 18:da299f395b9e | 144 | * \li No sampling time compensation |
| mbed_official | 18:da299f395b9e | 145 | * \li Disable the positive input sequense |
| mbed_official | 18:da299f395b9e | 146 | * \li No reference compensation |
| mbed_official | 18:da299f395b9e | 147 | * \li No gain/offset correction |
| mbed_official | 18:da299f395b9e | 148 | * \li No added sampling time |
| mbed_official | 18:da299f395b9e | 149 | * |
| mbed_official | 18:da299f395b9e | 150 | * \param[out] config Pointer to configuration struct to initialize to |
| mbed_official | 18:da299f395b9e | 151 | * default values |
| mbed_official | 18:da299f395b9e | 152 | */ |
| mbed_official | 18:da299f395b9e | 153 | void adc_get_config_defaults(struct adc_config *const config) |
| mbed_official | 18:da299f395b9e | 154 | { |
| mbed_official | 18:da299f395b9e | 155 | Assert(config); |
| mbed_official | 18:da299f395b9e | 156 | config->clock_source = GCLK_GENERATOR_0; |
| mbed_official | 18:da299f395b9e | 157 | config->reference = ADC_REFERENCE_INTREF; |
| mbed_official | 18:da299f395b9e | 158 | config->clock_prescaler = ADC_CLOCK_PRESCALER_DIV2; |
| mbed_official | 18:da299f395b9e | 159 | config->resolution = ADC_RESOLUTION_12BIT; |
| mbed_official | 18:da299f395b9e | 160 | config->window.window_mode = ADC_WINDOW_MODE_DISABLE; |
| mbed_official | 18:da299f395b9e | 161 | config->window.window_upper_value = 0; |
| mbed_official | 18:da299f395b9e | 162 | config->window.window_lower_value = 0; |
| mbed_official | 18:da299f395b9e | 163 | config->positive_input = ADC_POSITIVE_INPUT_PIN1; |
| mbed_official | 18:da299f395b9e | 164 | config->negative_input = ADC_NEGATIVE_INPUT_GND; |
| mbed_official | 18:da299f395b9e | 165 | config->accumulate_samples = ADC_ACCUMULATE_DISABLE; |
| mbed_official | 18:da299f395b9e | 166 | config->divide_result = ADC_DIVIDE_RESULT_DISABLE; |
| mbed_official | 18:da299f395b9e | 167 | config->left_adjust = false; |
| mbed_official | 18:da299f395b9e | 168 | config->differential_mode = false; |
| mbed_official | 18:da299f395b9e | 169 | config->freerunning = false; |
| mbed_official | 18:da299f395b9e | 170 | config->event_action = ADC_EVENT_ACTION_DISABLED; |
| mbed_official | 18:da299f395b9e | 171 | config->run_in_standby = false; |
| mbed_official | 18:da299f395b9e | 172 | config->on_demand = false; |
| mbed_official | 18:da299f395b9e | 173 | config->sampling_time_compensation_enable = false; |
| mbed_official | 18:da299f395b9e | 174 | config->positive_input_sequence_mask_enable = 0; |
| mbed_official | 18:da299f395b9e | 175 | config->reference_compensation_enable = false; |
| mbed_official | 18:da299f395b9e | 176 | config->correction.correction_enable = false; |
| mbed_official | 18:da299f395b9e | 177 | config->correction.gain_correction = ADC_GAINCORR_RESETVALUE; |
| mbed_official | 18:da299f395b9e | 178 | config->correction.offset_correction = ADC_OFFSETCORR_RESETVALUE; |
| mbed_official | 18:da299f395b9e | 179 | config->sample_length = 0; |
| mbed_official | 18:da299f395b9e | 180 | } |
| mbed_official | 18:da299f395b9e | 181 | |
| mbed_official | 18:da299f395b9e | 182 | /** |
| mbed_official | 18:da299f395b9e | 183 | * \brief Sets the ADC window mode. |
| mbed_official | 18:da299f395b9e | 184 | * |
| mbed_official | 18:da299f395b9e | 185 | * Sets the ADC window mode to a given mode and value range. |
| mbed_official | 18:da299f395b9e | 186 | * |
| mbed_official | 18:da299f395b9e | 187 | * \param[in] module_inst Pointer to the ADC software instance struct |
| mbed_official | 18:da299f395b9e | 188 | * \param[in] window_mode Window monitor mode to set |
| mbed_official | 18:da299f395b9e | 189 | * \param[in] window_lower_value Lower window monitor threshold value |
| mbed_official | 18:da299f395b9e | 190 | * \param[in] window_upper_value Upper window monitor threshold value |
| mbed_official | 18:da299f395b9e | 191 | */ |
| mbed_official | 18:da299f395b9e | 192 | void adc_set_window_mode( |
| mbed_official | 18:da299f395b9e | 193 | struct adc_module *const module_inst, |
| mbed_official | 18:da299f395b9e | 194 | const enum adc_window_mode window_mode, |
| mbed_official | 18:da299f395b9e | 195 | const int16_t window_lower_value, |
| mbed_official | 18:da299f395b9e | 196 | const int16_t window_upper_value) |
| mbed_official | 18:da299f395b9e | 197 | { |
| mbed_official | 18:da299f395b9e | 198 | /* Sanity check arguments */ |
| mbed_official | 18:da299f395b9e | 199 | Assert(module_inst); |
| mbed_official | 18:da299f395b9e | 200 | Assert(module_inst->hw); |
| mbed_official | 18:da299f395b9e | 201 | |
| mbed_official | 18:da299f395b9e | 202 | Adc *const adc_module = module_inst->hw; |
| mbed_official | 18:da299f395b9e | 203 | |
| mbed_official | 18:da299f395b9e | 204 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 205 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 206 | } |
| mbed_official | 18:da299f395b9e | 207 | |
| mbed_official | 18:da299f395b9e | 208 | /* Set window mode */ |
| mbed_official | 18:da299f395b9e | 209 | adc_module->CTRLC.reg = window_mode; |
| mbed_official | 18:da299f395b9e | 210 | |
| mbed_official | 18:da299f395b9e | 211 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 212 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 213 | } |
| mbed_official | 18:da299f395b9e | 214 | |
| mbed_official | 18:da299f395b9e | 215 | /* Set lower window monitor threshold value */ |
| mbed_official | 18:da299f395b9e | 216 | adc_module->WINLT.reg = window_lower_value; |
| mbed_official | 18:da299f395b9e | 217 | |
| mbed_official | 18:da299f395b9e | 218 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 219 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 220 | } |
| mbed_official | 18:da299f395b9e | 221 | |
| mbed_official | 18:da299f395b9e | 222 | /* Set upper window monitor threshold value */ |
| mbed_official | 18:da299f395b9e | 223 | adc_module->WINUT.reg = window_upper_value; |
| mbed_official | 18:da299f395b9e | 224 | |
| mbed_official | 18:da299f395b9e | 225 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 226 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 227 | } |
| mbed_official | 18:da299f395b9e | 228 | } |
| mbed_official | 18:da299f395b9e | 229 | |
| mbed_official | 18:da299f395b9e | 230 | /** |
| mbed_official | 18:da299f395b9e | 231 | * \internal Configure MUX settings for the analog pins. |
| mbed_official | 18:da299f395b9e | 232 | * |
| mbed_official | 18:da299f395b9e | 233 | * This function will set the given ADC input pins |
| mbed_official | 18:da299f395b9e | 234 | * to the analog function in the pin mux, giving |
| mbed_official | 18:da299f395b9e | 235 | * the ADC access to the analog signal. |
| mbed_official | 18:da299f395b9e | 236 | * |
| mbed_official | 18:da299f395b9e | 237 | * \param [in] index Index of the ADC module instance. |
| mbed_official | 18:da299f395b9e | 238 | * \param [in] pin AINxx pin to configure |
| mbed_official | 18:da299f395b9e | 239 | */ |
| mbed_official | 18:da299f395b9e | 240 | static inline void _adc_configure_ain_pin(uint8_t index, uint32_t pin) |
| mbed_official | 18:da299f395b9e | 241 | { |
| mbed_official | 18:da299f395b9e | 242 | #define PIN_INVALID_ADC_AIN 0xFFFFUL |
| mbed_official | 18:da299f395b9e | 243 | |
| mbed_official | 18:da299f395b9e | 244 | /* Pinmapping table for AINxx -> GPIO pin number */ |
| mbed_official | 18:da299f395b9e | 245 | #if (SAML21) |
| mbed_official | 18:da299f395b9e | 246 | const uint32_t pinmapping[] = { |
| mbed_official | 18:da299f395b9e | 247 | # if (SAML21E) |
| mbed_official | 18:da299f395b9e | 248 | PIN_PA02B_ADC_AIN0, PIN_PA03B_ADC_AIN1, |
| mbed_official | 18:da299f395b9e | 249 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 250 | PIN_PA04B_ADC_AIN4, PIN_PA05B_ADC_AIN5, |
| mbed_official | 18:da299f395b9e | 251 | PIN_PA06B_ADC_AIN6, PIN_PA07B_ADC_AIN7, |
| mbed_official | 18:da299f395b9e | 252 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 253 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 254 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 255 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 256 | PIN_PA08B_ADC_AIN16, PIN_PA09B_ADC_AIN17, |
| mbed_official | 18:da299f395b9e | 257 | PIN_PA10B_ADC_AIN18, PIN_PA11B_ADC_AIN19, |
| mbed_official | 18:da299f395b9e | 258 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 259 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 260 | # elif (SAML21G) |
| mbed_official | 18:da299f395b9e | 261 | PIN_PA02B_ADC_AIN0, PIN_PA03B_ADC_AIN1, |
| mbed_official | 18:da299f395b9e | 262 | PIN_PB08B_ADC_AIN2, PIN_PB09B_ADC_AIN3, |
| mbed_official | 18:da299f395b9e | 263 | PIN_PA04B_ADC_AIN4, PIN_PA05B_ADC_AIN5, |
| mbed_official | 18:da299f395b9e | 264 | PIN_PA06B_ADC_AIN6, PIN_PA07B_ADC_AIN7, |
| mbed_official | 18:da299f395b9e | 265 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 266 | PIN_PB02B_ADC_AIN10, PIN_PB03B_ADC_AIN11, |
| mbed_official | 18:da299f395b9e | 267 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 268 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 269 | PIN_PA08B_ADC_AIN16, PIN_PA09B_ADC_AIN17, |
| mbed_official | 18:da299f395b9e | 270 | PIN_PA10B_ADC_AIN18, PIN_PA11B_ADC_AIN19, |
| mbed_official | 18:da299f395b9e | 271 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 272 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 273 | # elif (SAML21J) |
| mbed_official | 18:da299f395b9e | 274 | PIN_PA02B_ADC_AIN0, PIN_PA03B_ADC_AIN1, |
| mbed_official | 18:da299f395b9e | 275 | PIN_PB08B_ADC_AIN2, PIN_PB09B_ADC_AIN3, |
| mbed_official | 18:da299f395b9e | 276 | PIN_PA04B_ADC_AIN4, PIN_PA05B_ADC_AIN5, |
| mbed_official | 18:da299f395b9e | 277 | PIN_PA06B_ADC_AIN6, PIN_PA07B_ADC_AIN7, |
| mbed_official | 18:da299f395b9e | 278 | PIN_PB00B_ADC_AIN8, PIN_PB01B_ADC_AIN9, |
| mbed_official | 18:da299f395b9e | 279 | PIN_PB02B_ADC_AIN10, PIN_PB03B_ADC_AIN11, |
| mbed_official | 18:da299f395b9e | 280 | PIN_PB04B_ADC_AIN12, PIN_PB05B_ADC_AIN13, |
| mbed_official | 18:da299f395b9e | 281 | PIN_PB06B_ADC_AIN14, PIN_PB07B_ADC_AIN15, |
| mbed_official | 18:da299f395b9e | 282 | PIN_PA08B_ADC_AIN16, PIN_PA09B_ADC_AIN17, |
| mbed_official | 18:da299f395b9e | 283 | PIN_PA10B_ADC_AIN18, PIN_PA11B_ADC_AIN19, |
| mbed_official | 18:da299f395b9e | 284 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 285 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 286 | # else |
| mbed_official | 18:da299f395b9e | 287 | # error ADC pin mappings are not defined for this device. |
| mbed_official | 18:da299f395b9e | 288 | # endif |
| mbed_official | 18:da299f395b9e | 289 | }; |
| mbed_official | 18:da299f395b9e | 290 | #elif (SAMC20) |
| mbed_official | 18:da299f395b9e | 291 | const uint32_t pinmapping[] = { |
| mbed_official | 18:da299f395b9e | 292 | # if (SAMC20E) |
| mbed_official | 18:da299f395b9e | 293 | PIN_PA02B_ADC0_AIN0, PIN_PA03B_ADC0_AIN1, |
| mbed_official | 18:da299f395b9e | 294 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 295 | PIN_PA04B_ADC0_AIN4, PIN_PA05B_ADC0_AIN5, |
| mbed_official | 18:da299f395b9e | 296 | PIN_PA06B_ADC0_AIN6, PIN_PA07B_ADC0_AIN7, |
| mbed_official | 18:da299f395b9e | 297 | PIN_PA08B_ADC0_AIN8, PIN_PA09B_ADC0_AIN9, |
| mbed_official | 18:da299f395b9e | 298 | PIN_PA10B_ADC0_AIN10, PIN_PA11B_ADC0_AIN11, |
| mbed_official | 18:da299f395b9e | 299 | # elif (SAMC20G) |
| mbed_official | 18:da299f395b9e | 300 | PIN_PA02B_ADC0_AIN0, PIN_PA03B_ADC0_AIN1, |
| mbed_official | 18:da299f395b9e | 301 | PIN_PB08B_ADC0_AIN2, PIN_PB09B_ADC0_AIN3, |
| mbed_official | 18:da299f395b9e | 302 | PIN_PA04B_ADC0_AIN4, PIN_PA05B_ADC0_AIN5, |
| mbed_official | 18:da299f395b9e | 303 | PIN_PA06B_ADC0_AIN6, PIN_PA07B_ADC0_AIN7, |
| mbed_official | 18:da299f395b9e | 304 | PIN_PA08B_ADC0_AIN8, PIN_PA09B_ADC0_AIN9, |
| mbed_official | 18:da299f395b9e | 305 | PIN_PA10B_ADC0_AIN10, PIN_PA11B_ADC0_AIN11, |
| mbed_official | 18:da299f395b9e | 306 | # elif (SAMC20J) |
| mbed_official | 18:da299f395b9e | 307 | PIN_PA02B_ADC0_AIN0, PIN_PA03B_ADC0_AIN1, |
| mbed_official | 18:da299f395b9e | 308 | PIN_PB08B_ADC0_AIN2, PIN_PB09B_ADC0_AIN3, |
| mbed_official | 18:da299f395b9e | 309 | PIN_PA04B_ADC0_AIN4, PIN_PA05B_ADC0_AIN5, |
| mbed_official | 18:da299f395b9e | 310 | PIN_PA06B_ADC0_AIN6, PIN_PA07B_ADC0_AIN7, |
| mbed_official | 18:da299f395b9e | 311 | PIN_PA08B_ADC0_AIN8, PIN_PA09B_ADC0_AIN9, |
| mbed_official | 18:da299f395b9e | 312 | PIN_PA10B_ADC0_AIN10, PIN_PA11B_ADC0_AIN11, |
| mbed_official | 18:da299f395b9e | 313 | # else |
| mbed_official | 18:da299f395b9e | 314 | # error ADC pin mappings are not defined for this device. |
| mbed_official | 18:da299f395b9e | 315 | # endif |
| mbed_official | 18:da299f395b9e | 316 | }; |
| mbed_official | 18:da299f395b9e | 317 | #elif (SAMC21) |
| mbed_official | 18:da299f395b9e | 318 | const uint32_t *pinmapping = NULL;; |
| mbed_official | 18:da299f395b9e | 319 | const uint32_t pinmapping0[] = { |
| mbed_official | 18:da299f395b9e | 320 | # if (SAMC21E) |
| mbed_official | 18:da299f395b9e | 321 | PIN_PA02B_ADC0_AIN0, PIN_PA03B_ADC0_AIN1, |
| mbed_official | 18:da299f395b9e | 322 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 323 | PIN_PA04B_ADC0_AIN4, PIN_PA05B_ADC0_AIN5, |
| mbed_official | 18:da299f395b9e | 324 | PIN_PA06B_ADC0_AIN6, PIN_PA07B_ADC0_AIN7, |
| mbed_official | 18:da299f395b9e | 325 | PIN_PA08B_ADC0_AIN8, PIN_PA09B_ADC0_AIN9, |
| mbed_official | 18:da299f395b9e | 326 | PIN_PA10B_ADC0_AIN10, PIN_PA11B_ADC0_AIN11, |
| mbed_official | 18:da299f395b9e | 327 | # elif (SAMC21G) |
| mbed_official | 18:da299f395b9e | 328 | PIN_PA02B_ADC0_AIN0, PIN_PA03B_ADC0_AIN1, |
| mbed_official | 18:da299f395b9e | 329 | PIN_PB08B_ADC0_AIN2, PIN_PB09B_ADC0_AIN3, |
| mbed_official | 18:da299f395b9e | 330 | PIN_PA04B_ADC0_AIN4, PIN_PA05B_ADC0_AIN5, |
| mbed_official | 18:da299f395b9e | 331 | PIN_PA06B_ADC0_AIN6, PIN_PA07B_ADC0_AIN7, |
| mbed_official | 18:da299f395b9e | 332 | PIN_PA08B_ADC0_AIN8, PIN_PA09B_ADC0_AIN9, |
| mbed_official | 18:da299f395b9e | 333 | PIN_PA10B_ADC0_AIN10, PIN_PA11B_ADC0_AIN11, |
| mbed_official | 18:da299f395b9e | 334 | # elif (SAMC21J) |
| mbed_official | 18:da299f395b9e | 335 | PIN_PA02B_ADC0_AIN0, PIN_PA03B_ADC0_AIN1, |
| mbed_official | 18:da299f395b9e | 336 | PIN_PB08B_ADC0_AIN2, PIN_PB09B_ADC0_AIN3, |
| mbed_official | 18:da299f395b9e | 337 | PIN_PA04B_ADC0_AIN4, PIN_PA05B_ADC0_AIN5, |
| mbed_official | 18:da299f395b9e | 338 | PIN_PA06B_ADC0_AIN6, PIN_PA07B_ADC0_AIN7, |
| mbed_official | 18:da299f395b9e | 339 | PIN_PA08B_ADC0_AIN8, PIN_PA09B_ADC0_AIN9, |
| mbed_official | 18:da299f395b9e | 340 | PIN_PA10B_ADC0_AIN10, PIN_PA11B_ADC0_AIN11, |
| mbed_official | 18:da299f395b9e | 341 | # else |
| mbed_official | 18:da299f395b9e | 342 | # error ADC pin mappings are not defined for this device. |
| mbed_official | 18:da299f395b9e | 343 | # endif |
| mbed_official | 18:da299f395b9e | 344 | }; |
| mbed_official | 18:da299f395b9e | 345 | const uint32_t pinmapping1[] = { |
| mbed_official | 18:da299f395b9e | 346 | # if (SAMC21E) |
| mbed_official | 18:da299f395b9e | 347 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 348 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 349 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 350 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 351 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 352 | PIN_PA08B_ADC1_AIN10, PIN_PA09B_ADC1_AIN11, |
| mbed_official | 18:da299f395b9e | 353 | # elif (SAMC21G) |
| mbed_official | 18:da299f395b9e | 354 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 355 | PIN_PB02B_ADC1_AIN2, PIN_PB03B_ADC1_AIN3, |
| mbed_official | 18:da299f395b9e | 356 | PIN_PB08B_ADC1_AIN4, PIN_PB09B_ADC1_AIN5, |
| mbed_official | 18:da299f395b9e | 357 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 358 | PIN_INVALID_ADC_AIN, PIN_INVALID_ADC_AIN, |
| mbed_official | 18:da299f395b9e | 359 | PIN_PA08B_ADC1_AIN10, PIN_PA09B_ADC1_AIN11, |
| mbed_official | 18:da299f395b9e | 360 | # elif (SAMC21J) |
| mbed_official | 18:da299f395b9e | 361 | PIN_PB00B_ADC1_AIN0, PIN_PB01B_ADC1_AIN1, |
| mbed_official | 18:da299f395b9e | 362 | PIN_PB02B_ADC1_AIN2, PIN_PB03B_ADC1_AIN3, |
| mbed_official | 18:da299f395b9e | 363 | PIN_PB08B_ADC1_AIN4, PIN_PB09B_ADC1_AIN5, |
| mbed_official | 18:da299f395b9e | 364 | PIN_PB04B_ADC1_AIN6, PIN_PB05B_ADC1_AIN7, |
| mbed_official | 18:da299f395b9e | 365 | PIN_PB06B_ADC1_AIN8, PIN_PB07B_ADC1_AIN9, |
| mbed_official | 18:da299f395b9e | 366 | PIN_PA08B_ADC1_AIN10, PIN_PA09B_ADC1_AIN11, |
| mbed_official | 18:da299f395b9e | 367 | # else |
| mbed_official | 18:da299f395b9e | 368 | # error ADC pin mappings are not defined for this device. |
| mbed_official | 18:da299f395b9e | 369 | # endif |
| mbed_official | 18:da299f395b9e | 370 | }; |
| mbed_official | 18:da299f395b9e | 371 | |
| mbed_official | 18:da299f395b9e | 372 | switch(index) { |
| mbed_official | 18:da299f395b9e | 373 | case 0: |
| mbed_official | 18:da299f395b9e | 374 | pinmapping = pinmapping0; |
| mbed_official | 18:da299f395b9e | 375 | break; |
| mbed_official | 18:da299f395b9e | 376 | case 1: |
| mbed_official | 18:da299f395b9e | 377 | pinmapping = pinmapping1; |
| mbed_official | 18:da299f395b9e | 378 | break; |
| mbed_official | 18:da299f395b9e | 379 | default: |
| mbed_official | 18:da299f395b9e | 380 | break; |
| mbed_official | 18:da299f395b9e | 381 | } |
| mbed_official | 18:da299f395b9e | 382 | Assert(pinmapping); |
| mbed_official | 18:da299f395b9e | 383 | #endif |
| mbed_official | 18:da299f395b9e | 384 | |
| mbed_official | 18:da299f395b9e | 385 | uint32_t pin_map_result = PIN_INVALID_ADC_AIN; |
| mbed_official | 18:da299f395b9e | 386 | |
| mbed_official | 18:da299f395b9e | 387 | if (pin <= _adc_extchannel_msb[index]) { |
| mbed_official | 18:da299f395b9e | 388 | pin_map_result = pinmapping[pin >> ADC_INPUTCTRL_MUXPOS_Pos]; |
| mbed_official | 18:da299f395b9e | 389 | |
| mbed_official | 18:da299f395b9e | 390 | Assert(pin_map_result != PIN_INVALID_ADC_AIN); |
| mbed_official | 18:da299f395b9e | 391 | |
| mbed_official | 18:da299f395b9e | 392 | struct system_pinmux_config config; |
| mbed_official | 18:da299f395b9e | 393 | system_pinmux_get_config_defaults(&config); |
| mbed_official | 18:da299f395b9e | 394 | |
| mbed_official | 18:da299f395b9e | 395 | /* Analog functions are all on MUX setting B */ |
| mbed_official | 18:da299f395b9e | 396 | config.input_pull = SYSTEM_PINMUX_PIN_PULL_NONE; |
| mbed_official | 18:da299f395b9e | 397 | config.mux_position = 1; |
| mbed_official | 18:da299f395b9e | 398 | |
| mbed_official | 18:da299f395b9e | 399 | system_pinmux_pin_set_config(pin_map_result, &config); |
| mbed_official | 18:da299f395b9e | 400 | } |
| mbed_official | 18:da299f395b9e | 401 | } |
| mbed_official | 18:da299f395b9e | 402 | |
| mbed_official | 18:da299f395b9e | 403 | /** |
| mbed_official | 18:da299f395b9e | 404 | * \internal Writes an ADC configuration to the hardware module. |
| mbed_official | 18:da299f395b9e | 405 | * |
| mbed_official | 18:da299f395b9e | 406 | * Writes out a given ADC module configuration to the hardware module. |
| mbed_official | 18:da299f395b9e | 407 | * |
| mbed_official | 18:da299f395b9e | 408 | * \param[in] index Index of the ADC module instance |
| mbed_official | 18:da299f395b9e | 409 | * \param[out] module_inst Pointer to the ADC software instance struct |
| mbed_official | 18:da299f395b9e | 410 | * \param[in] config Pointer to configuration struct |
| mbed_official | 18:da299f395b9e | 411 | * |
| mbed_official | 18:da299f395b9e | 412 | * \return Status of the configuration procedure. |
| mbed_official | 18:da299f395b9e | 413 | * \retval STATUS_OK The configuration was successful |
| mbed_official | 18:da299f395b9e | 414 | * \retval STATUS_ERR_INVALID_ARG Invalid argument(s) were provided |
| mbed_official | 18:da299f395b9e | 415 | */ |
| mbed_official | 18:da299f395b9e | 416 | static enum status_code _adc_set_config( |
| mbed_official | 18:da299f395b9e | 417 | uint8_t index, |
| mbed_official | 18:da299f395b9e | 418 | struct adc_module *const module_inst, |
| mbed_official | 18:da299f395b9e | 419 | struct adc_config *const config) |
| mbed_official | 18:da299f395b9e | 420 | { |
| mbed_official | 18:da299f395b9e | 421 | uint8_t adjres = 0; |
| mbed_official | 18:da299f395b9e | 422 | uint32_t resolution = ADC_RESOLUTION_16BIT; |
| mbed_official | 18:da299f395b9e | 423 | enum adc_accumulate_samples accumulate = ADC_ACCUMULATE_DISABLE; |
| mbed_official | 18:da299f395b9e | 424 | |
| mbed_official | 18:da299f395b9e | 425 | /* Get the hardware module pointer */ |
| mbed_official | 18:da299f395b9e | 426 | Adc *const adc_module = module_inst->hw; |
| mbed_official | 18:da299f395b9e | 427 | |
| mbed_official | 18:da299f395b9e | 428 | /* Configure GCLK channel and enable clock */ |
| mbed_official | 18:da299f395b9e | 429 | struct system_gclk_chan_config gclk_chan_conf; |
| mbed_official | 18:da299f395b9e | 430 | system_gclk_chan_get_config_defaults(&gclk_chan_conf); |
| mbed_official | 18:da299f395b9e | 431 | gclk_chan_conf.source_generator = config->clock_source; |
| mbed_official | 18:da299f395b9e | 432 | system_gclk_chan_set_config(_adc_gclk_ids[index], &gclk_chan_conf); |
| mbed_official | 18:da299f395b9e | 433 | system_gclk_chan_enable(_adc_gclk_ids[index]); |
| mbed_official | 18:da299f395b9e | 434 | |
| mbed_official | 18:da299f395b9e | 435 | /* Setup pinmuxing for analog inputs */ |
| mbed_official | 18:da299f395b9e | 436 | _adc_configure_ain_pin(index, config->positive_input); |
| mbed_official | 18:da299f395b9e | 437 | _adc_configure_ain_pin(index, config->negative_input); |
| mbed_official | 18:da299f395b9e | 438 | |
| mbed_official | 18:da299f395b9e | 439 | /* Set pinmux for positive input sequence*/ |
| mbed_official | 18:da299f395b9e | 440 | for(uint8_t i=0; i <= _adc_extchannel_msb[index]; i++) { |
| mbed_official | 18:da299f395b9e | 441 | if(config->positive_input_sequence_mask_enable & (1 << i)) { |
| mbed_official | 18:da299f395b9e | 442 | _adc_configure_ain_pin(index, i); |
| mbed_official | 18:da299f395b9e | 443 | } |
| mbed_official | 18:da299f395b9e | 444 | } |
| mbed_official | 18:da299f395b9e | 445 | |
| mbed_official | 18:da299f395b9e | 446 | /* Configure run in standby and on demand */ |
| mbed_official | 18:da299f395b9e | 447 | adc_module->CTRLA.reg = ((config->run_in_standby << ADC_CTRLA_RUNSTDBY_Pos) |
| mbed_official | 18:da299f395b9e | 448 | | (config->on_demand << ADC_CTRLA_ONDEMAND_Pos)) ; |
| mbed_official | 18:da299f395b9e | 449 | |
| mbed_official | 18:da299f395b9e | 450 | /* Configure reference */ |
| mbed_official | 18:da299f395b9e | 451 | adc_module->REFCTRL.reg = |
| mbed_official | 18:da299f395b9e | 452 | (config->reference_compensation_enable << ADC_REFCTRL_REFCOMP_Pos) |
| mbed_official | 18:da299f395b9e | 453 | | (config->reference); |
| mbed_official | 18:da299f395b9e | 454 | |
| mbed_official | 18:da299f395b9e | 455 | /* Set adjusting result and number of samples */ |
| mbed_official | 18:da299f395b9e | 456 | switch (config->resolution) { |
| mbed_official | 18:da299f395b9e | 457 | |
| mbed_official | 18:da299f395b9e | 458 | case ADC_RESOLUTION_CUSTOM: |
| mbed_official | 18:da299f395b9e | 459 | adjres = config->divide_result; |
| mbed_official | 18:da299f395b9e | 460 | accumulate = config->accumulate_samples; |
| mbed_official | 18:da299f395b9e | 461 | /* 16-bit result register */ |
| mbed_official | 18:da299f395b9e | 462 | resolution = ADC_RESOLUTION_16BIT; |
| mbed_official | 18:da299f395b9e | 463 | break; |
| mbed_official | 18:da299f395b9e | 464 | |
| mbed_official | 18:da299f395b9e | 465 | case ADC_RESOLUTION_13BIT: |
| mbed_official | 18:da299f395b9e | 466 | /* Increase resolution by 1 bit */ |
| mbed_official | 18:da299f395b9e | 467 | adjres = ADC_DIVIDE_RESULT_2; |
| mbed_official | 18:da299f395b9e | 468 | accumulate = ADC_ACCUMULATE_SAMPLES_4; |
| mbed_official | 18:da299f395b9e | 469 | /* 16-bit result register */ |
| mbed_official | 18:da299f395b9e | 470 | resolution = ADC_RESOLUTION_16BIT; |
| mbed_official | 18:da299f395b9e | 471 | break; |
| mbed_official | 18:da299f395b9e | 472 | |
| mbed_official | 18:da299f395b9e | 473 | case ADC_RESOLUTION_14BIT: |
| mbed_official | 18:da299f395b9e | 474 | /* Increase resolution by 2 bit */ |
| mbed_official | 18:da299f395b9e | 475 | adjres = ADC_DIVIDE_RESULT_4; |
| mbed_official | 18:da299f395b9e | 476 | accumulate = ADC_ACCUMULATE_SAMPLES_16; |
| mbed_official | 18:da299f395b9e | 477 | /* 16-bit result register */ |
| mbed_official | 18:da299f395b9e | 478 | resolution = ADC_RESOLUTION_16BIT; |
| mbed_official | 18:da299f395b9e | 479 | break; |
| mbed_official | 18:da299f395b9e | 480 | case ADC_RESOLUTION_15BIT: |
| mbed_official | 18:da299f395b9e | 481 | /* Increase resolution by 3 bit */ |
| mbed_official | 18:da299f395b9e | 482 | adjres = ADC_DIVIDE_RESULT_2; |
| mbed_official | 18:da299f395b9e | 483 | accumulate = ADC_ACCUMULATE_SAMPLES_64; |
| mbed_official | 18:da299f395b9e | 484 | /* 16-bit result register */ |
| mbed_official | 18:da299f395b9e | 485 | resolution = ADC_RESOLUTION_16BIT; |
| mbed_official | 18:da299f395b9e | 486 | break; |
| mbed_official | 18:da299f395b9e | 487 | |
| mbed_official | 18:da299f395b9e | 488 | case ADC_RESOLUTION_16BIT: |
| mbed_official | 18:da299f395b9e | 489 | /* Increase resolution by 4 bit */ |
| mbed_official | 18:da299f395b9e | 490 | adjres = ADC_DIVIDE_RESULT_DISABLE; |
| mbed_official | 18:da299f395b9e | 491 | accumulate = ADC_ACCUMULATE_SAMPLES_256; |
| mbed_official | 18:da299f395b9e | 492 | /* 16-bit result register */ |
| mbed_official | 18:da299f395b9e | 493 | resolution = ADC_RESOLUTION_16BIT; |
| mbed_official | 18:da299f395b9e | 494 | break; |
| mbed_official | 18:da299f395b9e | 495 | case ADC_RESOLUTION_8BIT: |
| mbed_official | 18:da299f395b9e | 496 | /* 8-bit result register */ |
| mbed_official | 18:da299f395b9e | 497 | resolution = ADC_RESOLUTION_8BIT; |
| mbed_official | 18:da299f395b9e | 498 | break; |
| mbed_official | 18:da299f395b9e | 499 | case ADC_RESOLUTION_10BIT: |
| mbed_official | 18:da299f395b9e | 500 | /* 10-bit result register */ |
| mbed_official | 18:da299f395b9e | 501 | resolution = ADC_RESOLUTION_10BIT; |
| mbed_official | 18:da299f395b9e | 502 | break; |
| mbed_official | 18:da299f395b9e | 503 | case ADC_RESOLUTION_12BIT: |
| mbed_official | 18:da299f395b9e | 504 | /* 12-bit result register */ |
| mbed_official | 18:da299f395b9e | 505 | resolution = ADC_RESOLUTION_12BIT; |
| mbed_official | 18:da299f395b9e | 506 | break; |
| mbed_official | 18:da299f395b9e | 507 | |
| mbed_official | 18:da299f395b9e | 508 | default: |
| mbed_official | 18:da299f395b9e | 509 | /* Unknown. Abort. */ |
| mbed_official | 18:da299f395b9e | 510 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 511 | } |
| mbed_official | 18:da299f395b9e | 512 | |
| mbed_official | 18:da299f395b9e | 513 | adc_module->AVGCTRL.reg = ADC_AVGCTRL_ADJRES(adjres) | accumulate; |
| mbed_official | 18:da299f395b9e | 514 | |
| mbed_official | 18:da299f395b9e | 515 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 516 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 517 | } |
| mbed_official | 18:da299f395b9e | 518 | |
| mbed_official | 18:da299f395b9e | 519 | /* Check validity of sample length value */ |
| mbed_official | 18:da299f395b9e | 520 | if (config->sample_length > 63) { |
| mbed_official | 18:da299f395b9e | 521 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 522 | } else { |
| mbed_official | 18:da299f395b9e | 523 | /* Configure sample length */ |
| mbed_official | 18:da299f395b9e | 524 | adc_module->SAMPCTRL.reg = |
| mbed_official | 18:da299f395b9e | 525 | (config->sample_length << ADC_SAMPCTRL_SAMPLEN_Pos) |
| mbed_official | 18:da299f395b9e | 526 | | (config->sampling_time_compensation_enable << ADC_SAMPCTRL_OFFCOMP_Pos); |
| mbed_official | 18:da299f395b9e | 527 | } |
| mbed_official | 18:da299f395b9e | 528 | |
| mbed_official | 18:da299f395b9e | 529 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 530 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 531 | } |
| mbed_official | 18:da299f395b9e | 532 | |
| mbed_official | 18:da299f395b9e | 533 | /* Configure CTRLB */ |
| mbed_official | 18:da299f395b9e | 534 | adc_module->CTRLB.reg = |
| mbed_official | 18:da299f395b9e | 535 | config->clock_prescaler; |
| mbed_official | 18:da299f395b9e | 536 | adc_module->CTRLC.reg = |
| mbed_official | 18:da299f395b9e | 537 | resolution | |
| mbed_official | 18:da299f395b9e | 538 | (config->correction.correction_enable << ADC_CTRLC_CORREN_Pos) | |
| mbed_official | 18:da299f395b9e | 539 | (config->freerunning << ADC_CTRLC_FREERUN_Pos) | |
| mbed_official | 18:da299f395b9e | 540 | (config->left_adjust << ADC_CTRLC_LEFTADJ_Pos) | |
| mbed_official | 18:da299f395b9e | 541 | (config->differential_mode << ADC_CTRLC_DIFFMODE_Pos); |
| mbed_official | 18:da299f395b9e | 542 | |
| mbed_official | 18:da299f395b9e | 543 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 544 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 545 | } |
| mbed_official | 18:da299f395b9e | 546 | |
| mbed_official | 18:da299f395b9e | 547 | /* Check validity of window thresholds */ |
| mbed_official | 18:da299f395b9e | 548 | if (config->window.window_mode != ADC_WINDOW_MODE_DISABLE) { |
| mbed_official | 18:da299f395b9e | 549 | switch (resolution) { |
| mbed_official | 18:da299f395b9e | 550 | case ADC_RESOLUTION_8BIT: |
| mbed_official | 18:da299f395b9e | 551 | if (config->differential_mode && |
| mbed_official | 18:da299f395b9e | 552 | (config->window.window_lower_value > 127 || |
| mbed_official | 18:da299f395b9e | 553 | config->window.window_lower_value < -128 || |
| mbed_official | 18:da299f395b9e | 554 | config->window.window_upper_value > 127 || |
| mbed_official | 18:da299f395b9e | 555 | config->window.window_upper_value < -128)) { |
| mbed_official | 18:da299f395b9e | 556 | /* Invalid value */ |
| mbed_official | 18:da299f395b9e | 557 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 558 | } else if (config->window.window_lower_value > 255 || |
| mbed_official | 18:da299f395b9e | 559 | config->window.window_upper_value > 255) { |
| mbed_official | 18:da299f395b9e | 560 | /* Invalid value */ |
| mbed_official | 18:da299f395b9e | 561 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 562 | } |
| mbed_official | 18:da299f395b9e | 563 | break; |
| mbed_official | 18:da299f395b9e | 564 | case ADC_RESOLUTION_10BIT: |
| mbed_official | 18:da299f395b9e | 565 | if (config->differential_mode && |
| mbed_official | 18:da299f395b9e | 566 | (config->window.window_lower_value > 511 || |
| mbed_official | 18:da299f395b9e | 567 | config->window.window_lower_value < -512 || |
| mbed_official | 18:da299f395b9e | 568 | config->window.window_upper_value > 511 || |
| mbed_official | 18:da299f395b9e | 569 | config->window.window_upper_value < -512)) { |
| mbed_official | 18:da299f395b9e | 570 | /* Invalid value */ |
| mbed_official | 18:da299f395b9e | 571 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 572 | } else if (config->window.window_lower_value > 1023 || |
| mbed_official | 18:da299f395b9e | 573 | config->window.window_upper_value > 1023) { |
| mbed_official | 18:da299f395b9e | 574 | /* Invalid value */ |
| mbed_official | 18:da299f395b9e | 575 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 576 | } |
| mbed_official | 18:da299f395b9e | 577 | break; |
| mbed_official | 18:da299f395b9e | 578 | case ADC_RESOLUTION_12BIT: |
| mbed_official | 18:da299f395b9e | 579 | if (config->differential_mode && |
| mbed_official | 18:da299f395b9e | 580 | (config->window.window_lower_value > 2047 || |
| mbed_official | 18:da299f395b9e | 581 | config->window.window_lower_value < -2048 || |
| mbed_official | 18:da299f395b9e | 582 | config->window.window_upper_value > 2047 || |
| mbed_official | 18:da299f395b9e | 583 | config->window.window_upper_value < -2048)) { |
| mbed_official | 18:da299f395b9e | 584 | /* Invalid value */ |
| mbed_official | 18:da299f395b9e | 585 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 586 | } else if (config->window.window_lower_value > 4095 || |
| mbed_official | 18:da299f395b9e | 587 | config->window.window_upper_value > 4095) { |
| mbed_official | 18:da299f395b9e | 588 | /* Invalid value */ |
| mbed_official | 18:da299f395b9e | 589 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 590 | } |
| mbed_official | 18:da299f395b9e | 591 | break; |
| mbed_official | 18:da299f395b9e | 592 | case ADC_RESOLUTION_16BIT: |
| mbed_official | 18:da299f395b9e | 593 | if (config->differential_mode && |
| mbed_official | 18:da299f395b9e | 594 | (config->window.window_lower_value > 32767 || |
| mbed_official | 18:da299f395b9e | 595 | config->window.window_lower_value < -32768 || |
| mbed_official | 18:da299f395b9e | 596 | config->window.window_upper_value > 32767 || |
| mbed_official | 18:da299f395b9e | 597 | config->window.window_upper_value < -32768)) { |
| mbed_official | 18:da299f395b9e | 598 | /* Invalid value */ |
| mbed_official | 18:da299f395b9e | 599 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 600 | } else if (config->window.window_lower_value > 65535 || |
| mbed_official | 18:da299f395b9e | 601 | config->window.window_upper_value > 65535) { |
| mbed_official | 18:da299f395b9e | 602 | /* Invalid value */ |
| mbed_official | 18:da299f395b9e | 603 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 604 | } |
| mbed_official | 18:da299f395b9e | 605 | break; |
| mbed_official | 18:da299f395b9e | 606 | } |
| mbed_official | 18:da299f395b9e | 607 | } |
| mbed_official | 18:da299f395b9e | 608 | |
| mbed_official | 18:da299f395b9e | 609 | /* Configure window mode */ |
| mbed_official | 18:da299f395b9e | 610 | adc_module->CTRLC.reg |= config->window.window_mode; |
| mbed_official | 18:da299f395b9e | 611 | |
| mbed_official | 18:da299f395b9e | 612 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 613 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 614 | } |
| mbed_official | 18:da299f395b9e | 615 | |
| mbed_official | 18:da299f395b9e | 616 | /* Configure lower threshold */ |
| mbed_official | 18:da299f395b9e | 617 | adc_module->WINLT.reg = |
| mbed_official | 18:da299f395b9e | 618 | config->window.window_lower_value << ADC_WINLT_WINLT_Pos; |
| mbed_official | 18:da299f395b9e | 619 | |
| mbed_official | 18:da299f395b9e | 620 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 621 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 622 | } |
| mbed_official | 18:da299f395b9e | 623 | |
| mbed_official | 18:da299f395b9e | 624 | /* Configure lower threshold */ |
| mbed_official | 18:da299f395b9e | 625 | adc_module->WINUT.reg = config->window.window_upper_value << |
| mbed_official | 18:da299f395b9e | 626 | ADC_WINUT_WINUT_Pos; |
| mbed_official | 18:da299f395b9e | 627 | |
| mbed_official | 18:da299f395b9e | 628 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 629 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 630 | } |
| mbed_official | 18:da299f395b9e | 631 | |
| mbed_official | 18:da299f395b9e | 632 | /* Configure pin scan mode and positive and negative input pins */ |
| mbed_official | 18:da299f395b9e | 633 | adc_module->INPUTCTRL.reg = |
| mbed_official | 18:da299f395b9e | 634 | config->negative_input | |
| mbed_official | 18:da299f395b9e | 635 | config->positive_input; |
| mbed_official | 18:da299f395b9e | 636 | |
| mbed_official | 18:da299f395b9e | 637 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 638 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 639 | } |
| mbed_official | 18:da299f395b9e | 640 | |
| mbed_official | 18:da299f395b9e | 641 | /* Configure events */ |
| mbed_official | 18:da299f395b9e | 642 | adc_module->EVCTRL.reg = config->event_action; |
| mbed_official | 18:da299f395b9e | 643 | |
| mbed_official | 18:da299f395b9e | 644 | /* Disable all interrupts */ |
| mbed_official | 18:da299f395b9e | 645 | adc_module->INTENCLR.reg = |
| mbed_official | 18:da299f395b9e | 646 | (1 << ADC_INTENCLR_WINMON_Pos) |(1 << ADC_INTENCLR_OVERRUN_Pos) |
| mbed_official | 18:da299f395b9e | 647 | | (1 << ADC_INTENCLR_RESRDY_Pos); |
| mbed_official | 18:da299f395b9e | 648 | |
| mbed_official | 18:da299f395b9e | 649 | if (config->correction.correction_enable) { |
| mbed_official | 18:da299f395b9e | 650 | /* Make sure gain_correction value is valid */ |
| mbed_official | 18:da299f395b9e | 651 | if (config->correction.gain_correction > ADC_GAINCORR_GAINCORR_Msk) { |
| mbed_official | 18:da299f395b9e | 652 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 653 | } else { |
| mbed_official | 18:da299f395b9e | 654 | /* Set gain correction value */ |
| mbed_official | 18:da299f395b9e | 655 | adc_module->GAINCORR.reg = config->correction.gain_correction << |
| mbed_official | 18:da299f395b9e | 656 | ADC_GAINCORR_GAINCORR_Pos; |
| mbed_official | 18:da299f395b9e | 657 | } |
| mbed_official | 18:da299f395b9e | 658 | |
| mbed_official | 18:da299f395b9e | 659 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 660 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 661 | } |
| mbed_official | 18:da299f395b9e | 662 | |
| mbed_official | 18:da299f395b9e | 663 | /* Make sure offset correction value is valid */ |
| mbed_official | 18:da299f395b9e | 664 | if (config->correction.offset_correction > 2047 || |
| mbed_official | 18:da299f395b9e | 665 | config->correction.offset_correction < -2048) { |
| mbed_official | 18:da299f395b9e | 666 | return STATUS_ERR_INVALID_ARG; |
| mbed_official | 18:da299f395b9e | 667 | } else { |
| mbed_official | 18:da299f395b9e | 668 | /* Set offset correction value */ |
| mbed_official | 18:da299f395b9e | 669 | adc_module->OFFSETCORR.reg = config->correction.offset_correction << |
| mbed_official | 18:da299f395b9e | 670 | ADC_OFFSETCORR_OFFSETCORR_Pos; |
| mbed_official | 18:da299f395b9e | 671 | } |
| mbed_official | 18:da299f395b9e | 672 | |
| mbed_official | 18:da299f395b9e | 673 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 674 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 675 | } |
| mbed_official | 18:da299f395b9e | 676 | } |
| mbed_official | 18:da299f395b9e | 677 | |
| mbed_official | 18:da299f395b9e | 678 | /* Load in the fixed device ADC calibration constants */ |
| mbed_official | 18:da299f395b9e | 679 | adc_module->CALIB.reg = |
| mbed_official | 18:da299f395b9e | 680 | ADC_CALIB_BIASREFBUF( |
| mbed_official | 18:da299f395b9e | 681 | (*(uint32_t *)_adc_biasrefbuf_addr[index] >> _adc_biasrefbuf_pos[index]) |
| mbed_official | 18:da299f395b9e | 682 | ) | |
| mbed_official | 18:da299f395b9e | 683 | ADC_CALIB_BIASCOMP( |
| mbed_official | 18:da299f395b9e | 684 | (*(uint32_t *)_adc_biascomp_addr[index] >> _adc_biascomp_pos[index]) |
| mbed_official | 18:da299f395b9e | 685 | ); |
| mbed_official | 18:da299f395b9e | 686 | |
| mbed_official | 18:da299f395b9e | 687 | return STATUS_OK; |
| mbed_official | 18:da299f395b9e | 688 | } |
| mbed_official | 18:da299f395b9e | 689 | |
| mbed_official | 18:da299f395b9e | 690 | /** |
| mbed_official | 18:da299f395b9e | 691 | * \brief Initializes the ADC. |
| mbed_official | 18:da299f395b9e | 692 | * |
| mbed_official | 18:da299f395b9e | 693 | * Initializes the ADC device struct and the hardware module based on the |
| mbed_official | 18:da299f395b9e | 694 | * given configuration struct values. |
| mbed_official | 18:da299f395b9e | 695 | * |
| mbed_official | 18:da299f395b9e | 696 | * \param[out] module_inst Pointer to the ADC software instance struct |
| mbed_official | 18:da299f395b9e | 697 | * \param[in] hw Pointer to the ADC module instance |
| mbed_official | 18:da299f395b9e | 698 | * \param[in] config Pointer to the configuration struct |
| mbed_official | 18:da299f395b9e | 699 | * |
| mbed_official | 18:da299f395b9e | 700 | * \return Status of the initialization procedure. |
| mbed_official | 18:da299f395b9e | 701 | * \retval STATUS_OK The initialization was successful |
| mbed_official | 18:da299f395b9e | 702 | * \retval STATUS_ERR_INVALID_ARG Invalid argument(s) were provided |
| mbed_official | 18:da299f395b9e | 703 | * \retval STATUS_BUSY The module is busy with a reset operation |
| mbed_official | 18:da299f395b9e | 704 | * \retval STATUS_ERR_DENIED The module is enabled |
| mbed_official | 18:da299f395b9e | 705 | */ |
| mbed_official | 18:da299f395b9e | 706 | enum status_code adc_init( |
| mbed_official | 18:da299f395b9e | 707 | struct adc_module *const module_inst, |
| mbed_official | 18:da299f395b9e | 708 | Adc *hw, |
| mbed_official | 18:da299f395b9e | 709 | struct adc_config *config) |
| mbed_official | 18:da299f395b9e | 710 | { |
| mbed_official | 18:da299f395b9e | 711 | /* Sanity check arguments */ |
| mbed_official | 18:da299f395b9e | 712 | Assert(module_inst); |
| mbed_official | 18:da299f395b9e | 713 | Assert(hw); |
| mbed_official | 18:da299f395b9e | 714 | Assert(config); |
| mbed_official | 18:da299f395b9e | 715 | |
| mbed_official | 18:da299f395b9e | 716 | /* Temporary variable to hold ADC instance number */ |
| mbed_official | 18:da299f395b9e | 717 | uint8_t instance = _adc_get_inst_index(hw); |
| mbed_official | 18:da299f395b9e | 718 | |
| mbed_official | 18:da299f395b9e | 719 | /* Associate the software module instance with the hardware module */ |
| mbed_official | 18:da299f395b9e | 720 | module_inst->hw = hw; |
| mbed_official | 18:da299f395b9e | 721 | |
| mbed_official | 18:da299f395b9e | 722 | /* Turn on the digital interface clock */ |
| mbed_official | 18:da299f395b9e | 723 | system_apb_clock_set_mask(SYSTEM_CLOCK_APB_APBC, _adc_apbcmasks[instance]); |
| mbed_official | 18:da299f395b9e | 724 | |
| mbed_official | 18:da299f395b9e | 725 | if (hw->CTRLA.reg & ADC_CTRLA_SWRST) { |
| mbed_official | 18:da299f395b9e | 726 | /* We are in the middle of a reset. Abort. */ |
| mbed_official | 18:da299f395b9e | 727 | return STATUS_BUSY; |
| mbed_official | 18:da299f395b9e | 728 | } |
| mbed_official | 18:da299f395b9e | 729 | |
| mbed_official | 18:da299f395b9e | 730 | while (adc_is_syncing(module_inst)) { |
| mbed_official | 18:da299f395b9e | 731 | /* Wait for synchronization */ |
| mbed_official | 18:da299f395b9e | 732 | } |
| mbed_official | 18:da299f395b9e | 733 | |
| mbed_official | 18:da299f395b9e | 734 | if (hw->CTRLA.reg & ADC_CTRLA_ENABLE) { |
| mbed_official | 18:da299f395b9e | 735 | /* Module must be disabled before initialization. Abort. */ |
| mbed_official | 18:da299f395b9e | 736 | return STATUS_ERR_DENIED; |
| mbed_official | 18:da299f395b9e | 737 | } |
| mbed_official | 18:da299f395b9e | 738 | |
| mbed_official | 18:da299f395b9e | 739 | /* Store the selected reference for later use */ |
| mbed_official | 18:da299f395b9e | 740 | module_inst->reference = config->reference; |
| mbed_official | 18:da299f395b9e | 741 | |
| mbed_official | 18:da299f395b9e | 742 | /* Make sure the voltage reference is enabled if requested by the config */ |
| mbed_official | 18:da299f395b9e | 743 | if (module_inst->reference == ADC_REFERENCE_INTREF) { |
| mbed_official | 18:da299f395b9e | 744 | system_voltage_reference_enable(SYSTEM_VOLTAGE_REFERENCE_OUTPUT); |
| mbed_official | 18:da299f395b9e | 745 | } |
| mbed_official | 18:da299f395b9e | 746 | |
| mbed_official | 18:da299f395b9e | 747 | #if ADC_CALLBACK_MODE == true |
| mbed_official | 18:da299f395b9e | 748 | for (uint8_t i = 0; i < ADC_CALLBACK_N; i++) { |
| mbed_official | 18:da299f395b9e | 749 | module_inst->callback[i] = NULL; |
| mbed_official | 18:da299f395b9e | 750 | }; |
| mbed_official | 18:da299f395b9e | 751 | |
| mbed_official | 18:da299f395b9e | 752 | module_inst->registered_callback_mask = 0; |
| mbed_official | 18:da299f395b9e | 753 | module_inst->enabled_callback_mask = 0; |
| mbed_official | 18:da299f395b9e | 754 | module_inst->remaining_conversions = 0; |
| mbed_official | 18:da299f395b9e | 755 | module_inst->job_status = STATUS_OK; |
| mbed_official | 18:da299f395b9e | 756 | |
| mbed_official | 18:da299f395b9e | 757 | _adc_instances[instance] = module_inst; |
| mbed_official | 18:da299f395b9e | 758 | |
| mbed_official | 18:da299f395b9e | 759 | if (config->event_action == ADC_EVENT_ACTION_DISABLED && |
| mbed_official | 18:da299f395b9e | 760 | !config->freerunning) { |
| mbed_official | 18:da299f395b9e | 761 | module_inst->software_trigger = true; |
| mbed_official | 18:da299f395b9e | 762 | } else { |
| mbed_official | 18:da299f395b9e | 763 | module_inst->software_trigger = false; |
| mbed_official | 18:da299f395b9e | 764 | } |
| mbed_official | 18:da299f395b9e | 765 | #endif |
| mbed_official | 18:da299f395b9e | 766 | |
| mbed_official | 18:da299f395b9e | 767 | /* Write configuration to module */ |
| mbed_official | 18:da299f395b9e | 768 | return _adc_set_config(instance, module_inst, config); |
| mbed_official | 18:da299f395b9e | 769 | } |