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21 lines
504 B
C
21 lines
504 B
C
/*
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* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "ulp_riscv/ulp_riscv_adc_ulp_core.h"
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#include "hal/adc_ll.h"
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int32_t ulp_riscv_adc_read_channel(adc_unit_t adc_n, int channel)
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{
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adc_ll_rtc_enable_channel(adc_n, channel);
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adc_ll_rtc_start_convert(adc_n, channel);
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while (adc_ll_rtc_convert_is_done(adc_n) != true) {
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;
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}
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int32_t out_raw = adc_ll_rtc_get_convert_value(adc_n);
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return out_raw;
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}
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