46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/*
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This file is part of the MKR WiFi 1010 firmware.
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Copyright (C) 2018 Arduino AG (http://www.arduino.cc/)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <driver/ledc.h>
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#include "wiring_analog.h"
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void analogWrite(uint32_t pin, uint32_t value)
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{
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periph_module_enable(PERIPH_LEDC_MODULE);
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ledc_timer_config_t timerConf = {
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.bit_num = LEDC_TIMER_10_BIT,
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.freq_hz = 1000,
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.speed_mode = LEDC_HIGH_SPEED_MODE,
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.timer_num = (pin / 7),
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};
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ledc_timer_config(&timerConf);
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ledc_channel_config_t ledc_conf = {
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.channel = (pin % 7),
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.duty = (value << 2),
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.gpio_num = pin,
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.intr_type = LEDC_INTR_DISABLE,
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.speed_mode = LEDC_HIGH_SPEED_MODE,
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.timer_sel = (pin / 7)
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};
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ledc_channel_config(&ledc_conf);
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}
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