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72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2019, Arm Limited and affiliates.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "analogout_api.h"
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#include "mbed_error.h"
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#include "cyhal_dac.h"
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#include "limits.h"
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#if DEVICE_ANALOGOUT
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#ifdef __cplusplus
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extern "C" {
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#endif
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void analogout_init(dac_t *obj, PinName pin)
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{
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if (CY_RSLT_SUCCESS != cyhal_dac_init(&(obj->hal_dac), pin)) {
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MBED_ERROR(MBED_MAKE_ERROR(MBED_MODULE_DRIVER_ANALOG, MBED_ERROR_CODE_FAILED_OPERATION), "cyhal_dac_init");
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}
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}
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void analogout_free(dac_t *obj)
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{
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cyhal_dac_free(&(obj->hal_dac));
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}
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void analogout_write(dac_t *obj, float value)
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{
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MBED_ASSERT(value >= 0.0 && value <= 1.0f);
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analogout_write_u16(obj, (uint16_t)(value * UINT16_MAX));
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}
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void analogout_write_u16(dac_t *obj, uint16_t value)
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{
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cyhal_dac_write(&(obj->hal_dac), value);
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}
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float analogout_read(dac_t *obj)
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{
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return analogout_read_u16(obj) * (1.0f / UINT16_MAX);
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}
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uint16_t analogout_read_u16(dac_t *obj)
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{
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return cyhal_dac_read(&(obj->hal_dac));
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}
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const PinMap *analogout_pinmap(void)
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{
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return PinMap_DAC;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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