mirror of
https://github.com/jscrane/r65emu.git
synced 2024-12-21 12:29:51 +00:00
63 lines
1.3 KiB
C++
63 lines
1.3 KiB
C++
#include <Arduino.h>
|
|
#include "sound_pwm.h"
|
|
#include "hardware.h"
|
|
|
|
#if defined(ESP32)
|
|
#include <driver/ledc.h>
|
|
|
|
#define CHANNEL LEDC_CHANNEL_0
|
|
#define TIMER LEDC_TIMER_0
|
|
#define SPEED_MODE LEDC_HIGH_SPEED_MODE
|
|
|
|
void PWM::begin(unsigned gpio) {
|
|
ledc_timer_config_t timer_conf;
|
|
timer_conf.duty_resolution = LEDC_TIMER_10_BIT;
|
|
timer_conf.freq_hz = 440;
|
|
timer_conf.speed_mode = SPEED_MODE;
|
|
timer_conf.timer_num = TIMER;
|
|
ESP_ERROR_CHECK(::ledc_timer_config(&timer_conf));
|
|
|
|
ledc_channel_config_t ledc_conf;
|
|
ledc_conf.channel = CHANNEL;
|
|
ledc_conf.duty = 0;
|
|
ledc_conf.gpio_num = gpio;
|
|
ledc_conf.intr_type = LEDC_INTR_DISABLE;
|
|
ledc_conf.speed_mode = SPEED_MODE;
|
|
ledc_conf.timer_sel = TIMER;
|
|
ESP_ERROR_CHECK(::ledc_channel_config(&ledc_conf));
|
|
}
|
|
|
|
void PWM::set_duty(unsigned duty) {
|
|
ESP_ERROR_CHECK(::ledc_set_duty(SPEED_MODE, CHANNEL, duty));
|
|
ESP_ERROR_CHECK(::ledc_update_duty(SPEED_MODE, CHANNEL));
|
|
}
|
|
|
|
void PWM::stop() {
|
|
set_duty(0);
|
|
}
|
|
|
|
void PWM::set_freq(unsigned freq) {
|
|
ESP_ERROR_CHECK(::ledc_set_freq(SPEED_MODE, TIMER, freq));
|
|
}
|
|
|
|
#else
|
|
static unsigned pin;
|
|
|
|
void PWM::begin(unsigned gpio) {
|
|
pin = gpio;
|
|
analogWriteRange(PWM_TOP);
|
|
}
|
|
|
|
void PWM::set_duty(unsigned duty) {
|
|
analogWrite(pin, duty);
|
|
}
|
|
|
|
void PWM::stop() {
|
|
analogWrite(pin, 0);
|
|
}
|
|
|
|
void PWM::set_freq(unsigned freq) {
|
|
analogWriteFreq(freq);
|
|
}
|
|
#endif
|