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calc LEDC PWM Resolution with LEDC_TIMER_BIT_MAX (#3820)

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Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
fixes https://github.com/esphome/issues/issues/3128
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Martin Flasskamp 2022-12-22 08:21:44 +01:00 committed by GitHub
parent f2df542cb1
commit 33b1a853b9
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1 changed files with 1 additions and 5 deletions
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6
esphome/components/ledc/ledc_output.cpp
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@ -6,17 +6,15 @@
#ifdef USE_ARDUINO
#include <esp32-hal-ledc.h>
#endif
#ifdef USE_ESP_IDF
#include <driver/ledc.h>
#endif
namespace esphome {
namespace ledc {
static const char *const TAG = "ledc.output";
#ifdef USE_ESP_IDF
static const int MAX_RES_BITS = LEDC_TIMER_BIT_MAX - 1;
#ifdef USE_ESP_IDF
#if SOC_LEDC_SUPPORT_HS_MODE
// Only ESP32 has LEDC_HIGH_SPEED_MODE
inline ledc_mode_t get_speed_mode(uint8_t channel) { return channel < 8 ? LEDC_HIGH_SPEED_MODE : LEDC_LOW_SPEED_MODE; }
@ -26,8 +24,6 @@ inline ledc_mode_t get_speed_mode(uint8_t channel) { return channel < 8 ? LEDC_H
// https://docs.espressif.com/projects/esp-idf/en/latest/esp32c3/api-reference/peripherals/ledc.html#functionality-overview
inline ledc_mode_t get_speed_mode(uint8_t) { return LEDC_LOW_SPEED_MODE; }
#endif
#else
static const int MAX_RES_BITS = 20;
#endif
float ledc_max_frequency_for_bit_depth(uint8_t bit_depth) { return 80e6f / float(1 << bit_depth); }