espressif/ESP8266_RTOS_SDK
1
0
Fork 0
mirror of https://github.com/espressif/ESP8266_RTOS_SDK.git synced 2025-06-20 05:51:46 +08:00
Code Issues Packages Projects Releases Wiki Activity

feature(ledc): Redefine duty

Browse Source
This commit is contained in:
chenzhengwei
2019-10-10 15:33:22 +08:00
committed by dongheng
parent 2fa4782599
commit 046ba744fa
3 changed files with 162 additions and 87 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
components/esp8266/driver/ledc.c
View File

@ -33,6 +33,7 @@
#define LEDC_FLAG_ON (1) #define LEDC_FLAG_ON (1)
#define LEDC_FLAG_OFF (0) #define LEDC_FLAG_OFF (0)
#define LEDC_TASK_STACK_DEPTH (1024) #define LEDC_TASK_STACK_DEPTH (1024)
#define LEDC_MAX_DUTY (8196)
static const char* LEDC_TAG = "ledc"; static const char* LEDC_TAG = "ledc";
@ -96,13 +97,14 @@ esp_err_t ledc_timer_config(const ledc_timer_config_t* timer_conf)
esp_err_t ledc_set_duty(ledc_mode_t speed_mode, ledc_channel_t ledc_channel, uint32_t ledc_duty) esp_err_t ledc_set_duty(ledc_mode_t speed_mode, ledc_channel_t ledc_channel, uint32_t ledc_duty)
{ {
LEDC_CHECK(ledc_channel < LEDC_CHANNEL_MAX, "ledc_channel error", ESP_ERR_INVALID_ARG); LEDC_CHECK(ledc_channel < LEDC_CHANNEL_MAX, "ledc_channel error", ESP_ERR_INVALID_ARG);
LEDC_CHECK(ledc_duty <= ledc_period, "ledc_duty error", ESP_ERR_INVALID_ARG); LEDC_CHECK(ledc_period * ledc_duty / LEDC_MAX_DUTY <= ledc_period, "ledc_duty error", ESP_ERR_INVALID_ARG);
p_ledc_obj[ledc_channel]->channel_num = ledc_channel; p_ledc_obj[ledc_channel]->channel_num = ledc_channel;
p_ledc_obj[ledc_channel]->duty = ledc_duty; p_ledc_obj[ledc_channel]->duty = ledc_period * ledc_duty / LEDC_MAX_DUTY;
pwm_get_duty(ledc_channel, &p_ledc_obj[ledc_channel]->duty_p); pwm_get_duty(ledc_channel, &p_ledc_obj[ledc_channel]->duty_p);
p_ledc_obj[ledc_channel]->step_duty = (p_ledc_obj[ledc_channel]->duty_p > p_ledc_obj[ledc_channel]->duty ? p_ledc_obj[ledc_channel]->duty_p - p_ledc_obj[ledc_channel]->duty : p_ledc_obj[ledc_channel]->duty - p_ledc_obj[ledc_channel]->duty_p); p_ledc_obj[ledc_channel]->step_duty = (p_ledc_obj[ledc_channel]->duty_p > p_ledc_obj[ledc_channel]->duty ? p_ledc_obj[ledc_channel]->duty_p - p_ledc_obj[ledc_channel]->duty : p_ledc_obj[ledc_channel]->duty - p_ledc_obj[ledc_channel]->duty_p);
//The duty print value for this channel is duty/period(Program internal value), corresponding to duty/ledc_max_duty
ESP_LOGI(LEDC_TAG, "channel_num = %d | duty = %d; duty_p = %d | step_duty = %d;", ESP_LOGI(LEDC_TAG, "channel_num = %d | duty = %d; duty_p = %d | step_duty = %d;",
p_ledc_obj[ledc_channel]->channel_num, p_ledc_obj[ledc_channel]->duty, p_ledc_obj[ledc_channel]->channel_num, p_ledc_obj[ledc_channel]->duty,
p_ledc_obj[ledc_channel]->duty_p, p_ledc_obj[ledc_channel]->step_duty); p_ledc_obj[ledc_channel]->duty_p, p_ledc_obj[ledc_channel]->step_duty);
@ -128,10 +130,10 @@ esp_err_t ledc_set_fade_with_time(ledc_mode_t speed_mode, ledc_channel_t ledc_ch
{ {
// For porting, speed_mode is not used // For porting, speed_mode is not used
LEDC_CHECK(ledc_channel < LEDC_CHANNEL_MAX, "ledc_channel error", ESP_ERR_INVALID_ARG); LEDC_CHECK(ledc_channel < LEDC_CHANNEL_MAX, "ledc_channel error", ESP_ERR_INVALID_ARG);
LEDC_CHECK(ledc_duty <= ledc_period, "ledc_duty error", ESP_ERR_INVALID_ARG); LEDC_CHECK(ledc_period * ledc_duty / LEDC_MAX_DUTY <= ledc_period, "ledc_duty error", ESP_ERR_INVALID_ARG);
p_ledc_obj[ledc_channel]->channel_num = ledc_channel; p_ledc_obj[ledc_channel]->channel_num = ledc_channel;
p_ledc_obj[ledc_channel]->duty = ledc_duty; p_ledc_obj[ledc_channel]->duty = ledc_period * ledc_duty / LEDC_MAX_DUTY;
p_ledc_obj[ledc_channel]->fade_time = ledc_fade_time; p_ledc_obj[ledc_channel]->fade_time = ledc_fade_time;
pwm_get_duty(ledc_channel, &p_ledc_obj[ledc_channel]->duty_p); pwm_get_duty(ledc_channel, &p_ledc_obj[ledc_channel]->duty_p);
uint32_t duty_value = (p_ledc_obj[ledc_channel]->duty_p > p_ledc_obj[ledc_channel]->duty ? (p_ledc_obj[ledc_channel]->duty_p - p_ledc_obj[ledc_channel]->duty) : (p_ledc_obj[ledc_channel]->duty - p_ledc_obj[ledc_channel]->duty_p)); uint32_t duty_value = (p_ledc_obj[ledc_channel]->duty_p > p_ledc_obj[ledc_channel]->duty ? (p_ledc_obj[ledc_channel]->duty_p - p_ledc_obj[ledc_channel]->duty) : (p_ledc_obj[ledc_channel]->duty - p_ledc_obj[ledc_channel]->duty_p));
@ -140,6 +142,7 @@ esp_err_t ledc_set_fade_with_time(ledc_mode_t speed_mode, ledc_channel_t ledc_ch
p_ledc_obj[ledc_channel]->step_01duty = duty_value * 10 / (ledc_fade_time / LEDC_STEP_TIME) % 10; p_ledc_obj[ledc_channel]->step_01duty = duty_value * 10 / (ledc_fade_time / LEDC_STEP_TIME) % 10;
p_ledc_obj[ledc_channel]->step_001duty = duty_value * 100 / (ledc_fade_time / LEDC_STEP_TIME) % 10; p_ledc_obj[ledc_channel]->step_001duty = duty_value * 100 / (ledc_fade_time / LEDC_STEP_TIME) % 10;
//The duty print value for this channel is duty/period(Program internal value), corresponding to duty/ledc_max_duty
ESP_LOGI(LEDC_TAG, "channel_num = %d | duty = %d; duty_p = %d | step_duty = %d | step_01duty = %d | step_001duty = %d", ESP_LOGI(LEDC_TAG, "channel_num = %d | duty = %d; duty_p = %d | step_duty = %d | step_01duty = %d | step_001duty = %d",
p_ledc_obj[ledc_channel]->channel_num, p_ledc_obj[ledc_channel]->duty, p_ledc_obj[ledc_channel]->channel_num, p_ledc_obj[ledc_channel]->duty,
p_ledc_obj[ledc_channel]->duty_p, p_ledc_obj[ledc_channel]->step_duty, p_ledc_obj[ledc_channel]->step_01duty, p_ledc_obj[ledc_channel]->step_001duty); p_ledc_obj[ledc_channel]->duty_p, p_ledc_obj[ledc_channel]->step_duty, p_ledc_obj[ledc_channel]->step_01duty, p_ledc_obj[ledc_channel]->step_001duty);
@ -176,7 +179,7 @@ esp_err_t ledc_channel_config(const ledc_channel_config_t* ledc_conf)
} }
} }
p_ledc_obj[ledc_usr_channel_max]->gpio_num = ledc_conf->gpio_num; p_ledc_obj[ledc_usr_channel_max]->gpio_num = ledc_conf->gpio_num;
p_ledc_obj[ledc_usr_channel_max]->duty = ledc_conf->duty; p_ledc_obj[ledc_usr_channel_max]->duty = ledc_period * ledc_conf->duty / LEDC_MAX_DUTY;
ledc_usr_channel_max++; ledc_usr_channel_max++;
return ESP_OK; return ESP_OK;
@ -208,7 +211,6 @@ esp_err_t ledc_fade_up(ledc_channel_t channel, uint8_t* flag)
} }
if (p_ledc_obj[channel]->duty_p == p_ledc_obj[channel]->duty) { if (p_ledc_obj[channel]->duty_p == p_ledc_obj[channel]->duty) {
*flag = LEDC_FLAG_OFF; *flag = LEDC_FLAG_OFF;
ESP_LOGI(LEDC_TAG, "channel%d is end", channel);
} }
return ESP_OK; return ESP_OK;
@ -241,7 +243,6 @@ esp_err_t ledc_fade_down(ledc_channel_t channel, uint8_t* flag)
} }
if (p_ledc_obj[channel]->duty_p == p_ledc_obj[channel]->duty) { if (p_ledc_obj[channel]->duty_p == p_ledc_obj[channel]->duty) {
*flag = LEDC_FLAG_OFF; *flag = LEDC_FLAG_OFF;
ESP_LOGI(LEDC_TAG, "channel%d is end", channel);
} }
return ESP_OK; return ESP_OK;
@ -258,7 +259,6 @@ static void ledc_task(void* pvParameters)
while (pdTRUE == xQueueReceive(channel_queue, &channel, 0)) { while (pdTRUE == xQueueReceive(channel_queue, &channel, 0)) {
flag[channel] = LEDC_FLAG_ON; flag[channel] = LEDC_FLAG_ON;
ESP_LOGI(LEDC_TAG, "channel%d is start", channel);
} }
vTaskSuspendAll(); vTaskSuspendAll();
for (i = 0; i < ledc_usr_channel_max; i++) { for (i = 0; i < ledc_usr_channel_max; i++) {
@ -294,7 +294,6 @@ esp_err_t ledc_fade_func_install(int intr_alloc_flags)
ESP_LOGI(LEDC_TAG, "gpio:%d", ledc_gpio_num[i]); ESP_LOGI(LEDC_TAG, "gpio:%d", ledc_gpio_num[i]);
} }
pwm_set_phases(ledc_phase); pwm_set_phases(ledc_phase);
channel_queue = xQueueCreate(ledc_usr_channel_max, sizeof(uint8_t)); channel_queue = xQueueCreate(ledc_usr_channel_max, sizeof(uint8_t));
if (channel_queue == 0) { if (channel_queue == 0) {
@ -314,4 +313,26 @@ esp_err_t ledc_fade_func_uninstall(void)
p_ledc_obj[i] = NULL; p_ledc_obj[i] = NULL;
} }
return pwm_stop(0x00); return pwm_stop(0x00);
}
esp_err_t ledc_stop(ledc_mode_t speed_mode, ledc_channel_t channel, uint32_t idle_level)
{
LEDC_CHECK(idle_level == 0 || idle_level == 1, "idle_level error", ESP_ERR_INVALID_ARG);
static uint32_t stop_level_mask = 0x0;
if (idle_level == 0){
stop_level_mask = stop_level_mask | 0x1 << channel;
}
else if (idle_level == 1){
stop_level_mask = stop_level_mask & ~(0x1 << channel);
}
pwm_stop(stop_level_mask);
return ESP_OK;
}
int periph_module_enable(int none)
{
return ESP_OK;
} }

22
components/esp8266/include/driver/ledc.h
View File

@ -18,6 +18,8 @@
extern "C" { extern "C" {
#endif #endif
#include "esp_err.h"
#define PERIPH_LEDC_MODULE (0)
#define LEDC_APB_CLK_HZ (APB_CLK_FREQ) #define LEDC_APB_CLK_HZ (APB_CLK_FREQ)
#define LEDC_REF_CLK_HZ (1*1000000) #define LEDC_REF_CLK_HZ (1*1000000)
#define LEDC_ERR_DUTY (0xFFFFFFFF) #define LEDC_ERR_DUTY (0xFFFFFFFF)
@ -91,6 +93,7 @@ typedef struct {
ledc_mode_t speed_mode; /*!< LEDC speed speed_mode, high-speed mode or low-speed mode */ ledc_mode_t speed_mode; /*!< LEDC speed speed_mode, high-speed mode or low-speed mode */
union { union {
ledc_timer_bit_t duty_resolution; /*!< LEDC channel duty resolution */ ledc_timer_bit_t duty_resolution; /*!< LEDC channel duty resolution */
ledc_timer_bit_t bit_num __attribute__((deprecated)); /*!< Deprecated in ESP-IDF 3.0. This is an alias to 'duty_resolution' for backward compatibility with ESP-IDF 2.1 */
}; };
ledc_timer_t timer_num; /*!< The timer source of channel (0 - 3) */ ledc_timer_t timer_num; /*!< The timer source of channel (0 - 3) */
uint32_t freq_hz; /*!< LEDC timer frequency (100Hz ~ 1KHz) */ uint32_t freq_hz; /*!< LEDC timer frequency (100Hz ~ 1KHz) */
@ -203,6 +206,25 @@ esp_err_t ledc_fade_func_install(int intr_alloc_flags);
*/ */
esp_err_t ledc_fade_func_uninstall(void); esp_err_t ledc_fade_func_uninstall(void);
/**
* @brief LEDC stop.
* Disable LEDC output, and set idle level
*
* @param speed_mode Select the LEDC speed_mode, high-speed mode and low-speed mode
* @param channel LEDC channel (0-7), select from ledc_channel_t
* @param idle_level Set output idle level after LEDC stops.
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t ledc_stop(ledc_mode_t speed_mode, ledc_channel_t channel, uint32_t idle_level);
/**
* it is an empty function
*/
int periph_module_enable(int none);
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

186
examples/peripherals/ledc/main/ledc_example_main.c
View File

@ -1,64 +1,76 @@
// Copyright 2018-2025 Espressif Systems (Shanghai) PTE LTD /* LEDC (LED Controller) fade example
// This example code is in the Public Domain (or CC0 licensed, at your option.)
// Licensed under the Apache License, Version 2.0 (the "License"); Unless required by applicable law or agreed to in writing, this
// you may not use this file except in compliance with the License. software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// You may obtain a copy of the License at CONDITIONS OF ANY KIND, either express or implied.
// */
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "freertos/FreeRTOS.h" #include "freertos/FreeRTOS.h"
#include "freertos/queue.h"
#include "freertos/task.h" #include "freertos/task.h"
#include "esp_err.h"
#include "esp_log.h"
#include "driver/ledc.h" #include "driver/ledc.h"
#include "esp_err.h"
#define LEDC_HS_CH0_GPIO (13) /*
#define LEDC_HS_CH1_GPIO (14) * About this example
#define LEDC_LS_CH2_GPIO (15) *
#define LEDC_LS_CH3_GPIO (12) * 1. Start with initializing LEDC module:
* a. Set the timer of LEDC first, this determines the frequency
* and resolution of PWM.
* b. Then set the LEDC channel you want to use,
* and bind with one of the timers.
*
* 2. You need first to install a default fade function,
* then you can use fade APIs.
*
* 3. You can also set a target duty directly without fading.
*
* 4. This example uses GPIO18/19/4/5 as LEDC output,
* and it will change the duty repeatedly.
*
* 5. GPIO18/19 are from high speed channel group.
* GPIO4/5 are from low speed channel group.
*
*/
#define LEDC_HS_TIMER LEDC_TIMER_0
#define LEDC_HS_MODE LEDC_HIGH_SPEED_MODE
#define LEDC_HS_CH0_GPIO (12)
#define LEDC_HS_CH0_CHANNEL LEDC_CHANNEL_0
#define LEDC_HS_CH1_GPIO (14)
#define LEDC_HS_CH1_CHANNEL LEDC_CHANNEL_1
#define LEDC_HS_CH0_CHANNEL LEDC_CHANNEL_0 #define LEDC_LS_TIMER LEDC_TIMER_1
#define LEDC_HS_CH1_CHANNEL LEDC_CHANNEL_1 #define LEDC_LS_MODE LEDC_LOW_SPEED_MODE
#define LEDC_LS_CH2_CHANNEL LEDC_CHANNEL_2 #define LEDC_LS_CH2_GPIO (4)
#define LEDC_LS_CH3_CHANNEL LEDC_CHANNEL_3 #define LEDC_LS_CH2_CHANNEL LEDC_CHANNEL_2
#define LEDC_LS_CH3_GPIO (15)
#define LEDC_LS_CH3_CHANNEL LEDC_CHANNEL_3
#define LEDC_TEST_CH_NUM (4) #define LEDC_TEST_CH_NUM (4)
#define LEDC_TEST_FREQ (1000) //1KHz #define LEDC_TEST_DUTY (4096)
#define LEDC_TEST_DUTY (900) //duty = LEDC_TEST_DUTY / LEDC_TEST_PERIOD & LEDC_TEST_PERIOD = 1,000,000 / LEDC_TEST_FREQ #define LEDC_TEST_FADE_TIME (3000)
#define LEDC_TEST_FADE_TIME (3000)
static const char* TAG = "main";
void app_main() void app_main()
{ {
int ch; int ch;
/* /*
* Prepare and set configuration of timers * Prepare and set configuration of timers
* that will be used by LED Controller * that will be used by LED Controller
*/ */
ledc_timer_config_t ledc_timer = { ledc_timer_config_t ledc_timer = {
.duty_resolution = LEDC_TIMER_1_BIT, // resolution of PWM duty(Invalid parameter, compatible with esp32 API) .duty_resolution = LEDC_TIMER_13_BIT, // resolution of PWM duty
.freq_hz = LEDC_TEST_FREQ, // frequency of PWM signal .freq_hz = 5000, // frequency of PWM signal
.speed_mode = 0, // timer mode (Invalid parameter, compatible with esp32 API) .speed_mode = LEDC_HS_MODE, // timer mode
.timer_num = 0 // timer index (Invalid parameter, compatible with esp32 API) .timer_num = LEDC_HS_TIMER // timer index
}; };
// Set configuration of timer0 for high speed channels // Set configuration of timer0 for high speed channels
ledc_timer_config(&ledc_timer); ledc_timer_config(&ledc_timer);
// Prepare and set configuration of timer1 for low speed channels
ledc_timer.speed_mode = LEDC_LS_MODE;
ledc_timer.timer_num = LEDC_LS_TIMER;
ledc_timer_config(&ledc_timer);
/* /*
* Prepare individual configuration * Prepare individual configuration
* for each channel of LED Controller * for each channel of LED Controller
@ -68,31 +80,43 @@ void app_main()
* - GPIO number where LED is connected to * - GPIO number where LED is connected to
* - speed mode, either high or low * - speed mode, either high or low
* - timer servicing selected channel * - timer servicing selected channel
* Note: Speed_mode and timer_sel are only compatible with esp32, * Note: if different channels use one timer,
* but it is not required in esp8266, so it can be set to 0 when * then frequency and bit_num of these channels
* using esp8266 * will be the same
*/ */
ledc_channel_config_t ledc_channel[LEDC_TEST_CH_NUM] = { ledc_channel_config_t ledc_channel[LEDC_TEST_CH_NUM] = {
{ .channel = LEDC_HS_CH0_CHANNEL, {
.duty = 0, .channel = LEDC_HS_CH0_CHANNEL,
.gpio_num = LEDC_HS_CH0_GPIO, .duty = 0,
.speed_mode = 0, .gpio_num = LEDC_HS_CH0_GPIO,
.timer_sel = 0 }, .speed_mode = LEDC_HS_MODE,
{ .channel = LEDC_HS_CH1_CHANNEL, .hpoint = 0,
.duty = 0, .timer_sel = LEDC_HS_TIMER
.gpio_num = LEDC_HS_CH1_GPIO, },
.speed_mode = 0, {
.timer_sel = 0 }, .channel = LEDC_HS_CH1_CHANNEL,
{ .channel = LEDC_LS_CH2_CHANNEL, .duty = 0,
.duty = 0, .gpio_num = LEDC_HS_CH1_GPIO,
.gpio_num = LEDC_LS_CH2_GPIO, .speed_mode = LEDC_HS_MODE,
.speed_mode = 0, .hpoint = 0,
.timer_sel = 0 }, .timer_sel = LEDC_HS_TIMER
{ .channel = LEDC_LS_CH3_CHANNEL, },
.duty = 0, {
.gpio_num = LEDC_LS_CH3_GPIO, .channel = LEDC_LS_CH2_CHANNEL,
.speed_mode = 0, .duty = 0,
.timer_sel = 0 }, .gpio_num = LEDC_LS_CH2_GPIO,
.speed_mode = LEDC_LS_MODE,
.hpoint = 0,
.timer_sel = LEDC_LS_TIMER
},
{
.channel = LEDC_LS_CH3_CHANNEL,
.duty = 0,
.gpio_num = LEDC_LS_CH3_GPIO,
.speed_mode = LEDC_LS_MODE,
.hpoint = 0,
.timer_sel = LEDC_LS_TIMER
},
}; };
// Set LED Controller with previously prepared configuration // Set LED Controller with previously prepared configuration
@ -104,28 +128,36 @@ void app_main()
ledc_fade_func_install(0); ledc_fade_func_install(0);
while (1) { while (1) {
ESP_LOGI(TAG, "1. LEDC fade up to duty = %d\n", LEDC_TEST_DUTY); printf("1. LEDC fade up to duty = %d\n", LEDC_TEST_DUTY);
for (ch = 0; ch < LEDC_TEST_CH_NUM; ch++) { for (ch = 0; ch < LEDC_TEST_CH_NUM; ch++) {
ledc_set_fade_with_time(ledc_channel[ch].speed_mode, ledc_set_fade_with_time(ledc_channel[ch].speed_mode,
ledc_channel[ch].channel, LEDC_TEST_DUTY, LEDC_TEST_FADE_TIME); ledc_channel[ch].channel, LEDC_TEST_DUTY, LEDC_TEST_FADE_TIME);
}
for (ch = 0; ch < LEDC_TEST_CH_NUM; ch++) {
ledc_fade_start(ledc_channel[ch].speed_mode, ledc_fade_start(ledc_channel[ch].speed_mode,
ledc_channel[ch].channel, LEDC_FADE_NO_WAIT); ledc_channel[ch].channel, LEDC_FADE_NO_WAIT);
} }
vTaskDelay(LEDC_TEST_FADE_TIME / portTICK_PERIOD_MS); vTaskDelay(LEDC_TEST_FADE_TIME / portTICK_PERIOD_MS);
vTaskDelay(LEDC_TEST_FADE_TIME / portTICK_PERIOD_MS);
ESP_LOGI(TAG, "2. LEDC fade down to duty = 0\n"); printf("2. LEDC fade down to duty = 0\n");
for (ch = 0; ch < LEDC_TEST_CH_NUM; ch++) { for (ch = 0; ch < LEDC_TEST_CH_NUM; ch++) {
ledc_set_fade_with_time(ledc_channel[ch].speed_mode, ledc_set_fade_with_time(ledc_channel[ch].speed_mode,
ledc_channel[ch].channel, 0, LEDC_TEST_FADE_TIME); ledc_channel[ch].channel, 0, LEDC_TEST_FADE_TIME);
}
for (ch = 0; ch < LEDC_TEST_CH_NUM; ch++) {
ledc_fade_start(ledc_channel[ch].speed_mode, ledc_fade_start(ledc_channel[ch].speed_mode,
ledc_channel[ch].channel, LEDC_FADE_NO_WAIT); ledc_channel[ch].channel, LEDC_FADE_NO_WAIT);
} }
vTaskDelay(LEDC_TEST_FADE_TIME / portTICK_PERIOD_MS); vTaskDelay(LEDC_TEST_FADE_TIME / portTICK_PERIOD_MS);
vTaskDelay(LEDC_TEST_FADE_TIME / portTICK_PERIOD_MS);
printf("3. LEDC set duty = %d without fade\n", LEDC_TEST_DUTY);
for (ch = 0; ch < LEDC_TEST_CH_NUM; ch++) {
ledc_set_duty(ledc_channel[ch].speed_mode, ledc_channel[ch].channel, LEDC_TEST_DUTY);
ledc_update_duty(ledc_channel[ch].speed_mode, ledc_channel[ch].channel);
}
vTaskDelay(1000 / portTICK_PERIOD_MS);
printf("4. LEDC set duty = 0 without fade\n");
for (ch = 0; ch < LEDC_TEST_CH_NUM; ch++) {
ledc_set_duty(ledc_channel[ch].speed_mode, ledc_channel[ch].channel, 0);
ledc_update_duty(ledc_channel[ch].speed_mode, ledc_channel[ch].channel);
}
vTaskDelay(1000 / portTICK_PERIOD_MS);
} }
} }