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Author SHA1 Message Date
aZholtikov 9150b05373 doc: added wiki 2026-11-03 19:23:03 +03:00
aZholtikov eb6518f207 doc: updated readme 2026-11-03 19:18:42 +03:00
aZholtikov 0a9a177289 style: updated tag 2026-10-04 22:14:49 +03:00
aZholtikov 50f3af41e7 perf: updated error checks 2026-10-04 12:58:12 +03:00
4 changed files with 356 additions and 106 deletions

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+15 -23
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@@ -10,18 +10,9 @@
6. Watch points at ±32767 for overflow detection. 6. Watch points at ±32767 for overflow detection.
7. Multiple tachometers supported — each requires its own PCNT unit and timer. 7. Multiple tachometers supported — each requires its own PCNT unit and timer.
## Note
Enable the following settings in menuconfig:
```text
PCNT_CTRL_FUNC_IN_IRAM
PCNT_ISR_IRAM_SAF
```
## Using ## Using
In an existing project, run the following command to install the components: In an existing project, run the following command to install the component:
```bash ```bash
cd ../your_project/components cd ../your_project/components
@@ -34,37 +25,38 @@ In the application, add the component:
#include "zh_tachometer.h" #include "zh_tachometer.h"
``` ```
## Example ## Examples
### Basic Example
```c ```c
#include "zh_tachometer.h" #include "zh_tachometer.h"
static zh_tachometer_handle_t *tachometer_handle = NULL; zh_tachometer_handle_t *tachometer_handle = NULL;
void app_main(void) void app_main(void)
{ {
esp_log_level_set("zh_tachometer", ESP_LOG_ERROR); esp_log_level_set("zh_tachometer", ESP_LOG_ERROR);
zh_tachometer_init_config_t config = ZH_TACHOMETER_INIT_CONFIG_DEFAULT(); zh_tachometer_init_config_t config = ZH_TACHOMETER_INIT_CONFIG_DEFAULT();
config.a_gpio_number = GPIO_NUM_26; config.a_gpio_number = GPIO_NUM_26;
config.b_gpio_number = GPIO_NUM_27; config.b_gpio_number = GPIO_NUM_27;
config.encoder_pulses = 3600; config.encoder_pulses = 3600;
esp_err_t ret = zh_tachometer_init(&config, &tachometer_handle); esp_err_t ret = zh_tachometer_init(&config, &tachometer_handle);
if (ret != ESP_OK) { if (ret != ESP_OK)
ESP_LOG_ERROR("zh_tachometer", "Initialization failed: %s", esp_err_to_name(ret)); {
printf("Tachometer initialization error\n");
return; return;
} }
for (;;)
for (;;) { {
uint16_t rpm = 0; uint16_t value = 0;
ret = zh_tachometer_get(&tachometer_handle, &rpm); ret = zh_tachometer_get(&tachometer_handle, &value);
if (ret == ESP_OK) { if (ret == ESP_OK)
printf("Tachometer value is %d rpm.\n", rpm); {
printf("Tachometer value is %u rpm.\n", value);
} }
vTaskDelay(100 / portTICK_PERIOD_MS); vTaskDelay(100 / portTICK_PERIOD_MS);
} }
zh_tachometer_deinit(&tachometer_handle); zh_tachometer_deinit(&tachometer_handle);
} }
``` ```
+5 -5
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@@ -62,8 +62,8 @@ extern "C"
*/ */
typedef struct typedef struct
{ {
uint8_t a_gpio_number; /*!< Encoder A phase GPIO number */ gpio_num_t a_gpio_number; /*!< Encoder A phase GPIO number */
uint8_t b_gpio_number; /*!< Encoder B phase GPIO number */ gpio_num_t b_gpio_number; /*!< Encoder B phase GPIO number */
bool pullup; /*!< Enable or disable GPIO pull-up resistors */ bool pullup; /*!< Enable or disable GPIO pull-up resistors */
uint16_t encoder_pulses; /*!< Number of pulses per one full rotation */ uint16_t encoder_pulses; /*!< Number of pulses per one full rotation */
} zh_tachometer_init_config_t; } zh_tachometer_init_config_t;
@@ -78,7 +78,7 @@ extern "C"
* @param[out] handle Pointer to receive the created tachometer handle (must be NULL) * @param[out] handle Pointer to receive the created tachometer handle (must be NULL)
* *
* @return ESP_OK on success * @return ESP_OK on success
* @return ESP_ERR_INVALID_ARG if `config` or `handle` is NULL, or `encoder_pulses` is zero * @return ESP_ERR_INVALID_ARG if `config` or `handle` is NULL, `encoder_pulses` is zero, or GPIO numbers are invalid or identical
* @return ESP_ERR_INVALID_STATE if the handle is already initialized * @return ESP_ERR_INVALID_STATE if the handle is already initialized
* @return ESP_ERR_NO_MEM if memory allocation fails * @return ESP_ERR_NO_MEM if memory allocation fails
* @return ESP_FAIL if PCNT initialization or configuration failed * @return ESP_FAIL if PCNT initialization or configuration failed
@@ -110,11 +110,11 @@ extern "C"
* The value represents absolute RPM (direction is discarded); negative * The value represents absolute RPM (direction is discarded); negative
* rotation is reported as a positive value. * rotation is reported as a positive value.
* *
* @param[in] handle Pointer to the tachometer handle (must not be NULL) * @param[in] handle Pointer to the tachometer handle (must not be NULL, and *handle must not be NULL)
* @param[out] value Pointer to receive the RPM value (must not be NULL) * @param[out] value Pointer to receive the RPM value (must not be NULL)
* *
* @return ESP_OK on success * @return ESP_OK on success
* @return ESP_ERR_INVALID_ARG if `handle` or `value` is NULL * @return ESP_ERR_INVALID_ARG if `handle`, `*handle`, or `value` is NULL
* *
* @note This function is non-blocking and returns the most recent value * @note This function is non-blocking and returns the most recent value
* without accessing the PCNT peripheral directly. * without accessing the PCNT peripheral directly.
+241
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@@ -0,0 +1,241 @@
# Описание компонента zh_tachometer
**zh_tachometer** — драйвер для ESP-IDF, измеряющий скорость вращения на основе квадратурного энкодера. Компонент использует периферийный модуль PCNT ESP32 в режиме квадратурного декодера для подсчёта импульсов энкодера и ESP-Timer, работающего с частотой 100 Гц, для периодического считывания накопленного значения и вычисления оборотов в минуту (RPM). Результатом является неблокирующий, совместимый с RTOS интерфейс, подходящий для мониторинга скорости двигателей.
Компонент поддерживает одновременную работу нескольких тахометров, каждый из которых использует собственный модуль PCNT и таймер.
## Основные возможности
- **Поддержка квадратурного энкодера** — подсчёт импульсов по двум фазам (A/B) через периферийный модуль PCNT в режиме квадратурного декодера.
- **Автоматический расчёт RPM** — вычисление оборотов в минуту на основе настраиваемого количества импульсов на полный оборот энкодера.
- **Периодическое дискретное считывание** — ESP-Timer запускается с частотой 100 Гц (интервал 10 мс) для чтения накопленного счёта PCNT и перевода в RPM.
- **Настраиваемые подтягивающие резисторы GPIO** — возможность включения или отключения внутренних подтягивающих резисторов для линий A и B энкодера.
- **Фильтр глитчей PCNT** — подавление ложных переходов с настройкой 1000 нс через встроенный фильтр PCNT.
- **Поддержка нескольких тахометров** — каждый тахометр использует отдельный модуль PCNT и таймер ESP-Timer.
## Внутреннее устройство
### Структура `zh_tachometer_handle_t`
Внутренняя структура тахометра содержит ссылки на все используемые периферийные модули, последнее вычисленное значение RPM и конфигурацию энкодера.
| Поле | Тип | Описание |
| ------ | ----- | ---------- |
| `pcnt_unit_handle` | `pcnt_unit_handle_t` | Управляющий объект модуля PCNT для квадратурного декодирования |
| `pcnt_channel_a_handle` | `pcnt_channel_handle_t` | Управляющий объект канала PCNT A (детектор фронтов) |
| `pcnt_channel_b_handle` | `pcnt_channel_handle_t` | Управляющий объект канала PCNT B (детектор фронтов) |
| `esp_timer_handle` | `esp_timer_handle_t` | Управляющий объект ESP-Timer для дискретного считывания RPM (100 Гц) |
| `value` | `volatile uint16_t` | Последнее вычисленное значение RPM (абсолютное, направление отбрасывается) |
| `encoder_pulses` | `uint16_t` | Количество импульсов на один полный оборот энкодера |
Структура является непрозрачной для вызывающего кода — доступ осуществляется только через публичные функции API.
### Структура конфигурации `zh_tachometer_init_config_t`
Передаётся в функцию `zh_tachometer_init()` для настройки пин GPIO, подтягивающих резисторов и коэффициента импульсов на оборот.
| Поле | Тип | Описание |
| ------ | ----- | ---------- |
| `a_gpio_number` | `gpio_num_t` | Номер GPIO линии фазы A энкодера |
| `b_gpio_number` | `gpio_num_t` | Номер GPIO линии фазы B энкодера |
| `pullup` | `bool` | Включение или отключение подтягивающих резисторов GPIO |
| `encoder_pulses` | `uint16_t` | Количество импульсов на один полный оборот энкодера |
По умолчанию `ZH_TACHOMETER_INIT_CONFIG_DEFAULT()` устанавливает GPIO в `GPIO_NUM_MAX`, подтягивание в `true`, а импульсы в `0`.
### Управление памятью
Память для структуры `zh_tachometer_handle_t` выделяется через `heap_caps_calloc()` с флагом `MALLOC_CAP_8BIT` при вызове `zh_tachometer_init()` и освобождается через `heap_caps_free()` при вызове `zh_tachometer_deinit()`. Управляющие объекты PCNT и ESP-Timer освобождаются через соответствующие функции ESP-IDF API (`pcnt_del_unit()`, `pcnt_del_channel()`, `esp_timer_delete()`).
## API (интерфейс)
### Инициализация и освобождение
| Функция | Описание |
|---------|----------|
| `zh_tachometer_init()` | Создаёт объект тахометра, настраивает ESP-Timer (100 Гц) и периферийный модуль PCNT в режиме квадратурного декодера с фильтром глитчей |
| `zh_tachometer_deinit()` | Останавливает модуль PCNT, удаляет каналы и точки наблюдения, удаляет ESP-Timer и освобождает память объекта |
### Получение данных
| Функция | Описание |
|---------|----------|
| `zh_tachometer_get()` | Возвращает последнее вычисленное значение RPM. Значение является абсолютным (направление вращения отбрасывается), функция не блокирует выполнение и не обращается к периферийному модулю PCNT напрямую |
## Потокобезопасность
1. **Общий доступ к данным** — последнее значение RPM хранится в поле `value` с квалификатором `volatile`, что обеспечивает корректное чтение из любого контекса. Функция `zh_tachometer_get()` просто копирует значение из структуры, не требуя блокировок.
2. **Контекст таймера** — обратный вызов ESP-Timer выполняется в контексте задачи `esp_timer service task` (метод диспетчеризации `ESP_TIMER_TASK` по умолчанию), а не из прерывания. Блокирующие или длительные операции в обратном вызове следует избегать.
## Алгоритмы
### Формула расчёта RPM
Обратный вызов ESP-Timer выполняется каждые 10 мс (100 Гц). За этот интервал считывается накопленное значение PCNT, обнуляется и преобразуется в RPM по формуле:
```
RPM = (count * 100.0 / (4.0 * pulses_per_rev)) * 60.0
```
Где:
- `count` — накопленное значение PCNT за 10 мс.
- `100.0` — масштабный коэффициент для перевода 10 мс в секунду (1000 мс / 10 мс).
- `4.0` — коэффициент квадратурного кодирования: 4 фронта за один цикл (фазы A и B имеют сдвиг 90°).
- `pulses_per_rev` — количество импульсов на полный оборот энкодера, задаётся в конфигурации.
- `60.0` — перевод оборотов в секунду в обороты в минуту.
Результат берётся по модулю (`fabsf()`) — направление вращения игнорируется, возвращается абсолютное значение RPM.
### Конфигурация PCNT
Модуль PCNT настраивается в режиме квадратурного декодера:
- Канал A: фронт по фазе A вызывает увеличение (`INCREASE`) или уменьшение (`DECREASE`) счётчика в зависимости от уровня фазы B.
- Канал A: уровень фазы A удерживает счёт (`KEEP`) или инвертирует направление (`INVERSE`).
- Канал B: фронт по фазе B вызывает увеличение или уменьшение счётчика в зависимости от уровня фазы A (обратное каналу A).
- Канал B: уровень фазы B удерживает или инвертирует направление (обратное каналу A).
- Фильтр глитчей: 1000 нс.
- Точки наблюдения: ±32767 для обнаружения переполнения.
- Накопление: включено (`accum_count = true`).
### Процесс деинициализации
При вызове `zh_tachometer_deinit()` ресурсы освобождаются в строгом порядке:
1. Остановка ESP-Timer (`esp_timer_stop`).
2. Удаление ESP-Timer (`esp_timer_delete`).
3. Остановка PCNT (`pcnt_unit_stop`).
4. Отключение PCNT (`pcnt_unit_disable`).
5. Удаление точек наблюдения: +32767, затем -32767.
6. Удаление каналов A и B (`pcnt_del_channel`).
7. Удаление модуля PCNT (`pcnt_del_unit`).
8. Освобождение памяти объекта (`heap_caps_free`).
9. Обнуление указателя на объект.
Все шаги используют `ZH_ERROR_CHECK_CONT` — ошибка логируется, но процесс деинициализации продолжается до полного освобождения ресурсов.
## Примеры использования
### Базовое использование
```c
#include "zh_tachometer.h"
zh_tachometer_handle_t *tachometer_handle = NULL;
void app_main(void)
{
esp_log_level_set("zh_tachometer", ESP_LOG_ERROR);
zh_tachometer_init_config_t config = ZH_TACHOMETER_INIT_CONFIG_DEFAULT();
config.a_gpio_number = GPIO_NUM_26;
config.b_gpio_number = GPIO_NUM_27;
config.encoder_pulses = 3600;
esp_err_t ret = zh_tachometer_init(&config, &tachometer_handle);
if (ret != ESP_OK)
{
printf("Tachometer initialization error: %s\n", esp_err_to_name(ret));
return;
}
for (;;)
{
uint16_t value = 0;
ret = zh_tachometer_get(&tachometer_handle, &value);
if (ret == ESP_OK)
{
printf("Current RPM: %u\n", value);
}
vTaskDelay(pdMS_TO_TICKS(100));
}
zh_tachometer_deinit(&tachometer_handle);
}
```
### Настройка с отключёнными подтягивающими резисторами
```c
#include "zh_tachometer.h"
zh_tachometer_handle_t *tachometer_handle = NULL;
void app_main(void)
{
esp_log_level_set("zh_tachometer", ESP_LOG_ERROR);
zh_tachometer_init_config_t config = ZH_TACHOMETER_INIT_CONFIG_DEFAULT();
config.a_gpio_number = GPIO_NUM_12;
config.b_gpio_number = GPIO_NUM_13;
config.pullup = false;
config.encoder_pulses = 1800;
esp_err_t ret = zh_tachometer_init(&config, &tachometer_handle);
if (ret != ESP_OK)
{
printf("Tachometer initialization error: %s\n", esp_err_to_name(ret));
return;
}
uint16_t rpm_value = 0;
ret = zh_tachometer_get(&tachometer_handle, &rpm_value);
if (ret == ESP_OK)
{
printf("RPM value: %u\n", rpm_value);
}
zh_tachometer_deinit(&tachometer_handle);
}
```
## Логирование
Компонент использует ESP-IDF логирование с тегом `"zh_tachometer"`.
```c
esp_log_level_set("zh_tachometer", ESP_LOG_ERROR);
```
Доступные уровни: `ESP_LOG_ERROR`, `ESP_LOG_INFO`. Макрос `ZH_LOGI` выводит информационные сообщения о начале и завершении операций. Макрос `ZH_LOGE` выводит сообщения об ошибках с указанием файла, строки и имени кода ошибки.
## Ошибки
| Код | Описание |
| ----- | ---------- |
| `ESP_OK` | Успешное выполнение |
| `ESP_ERR_INVALID_ARG` | Неверный аргумент: `config` или `handle` равен NULL, `encoder_pulses` равен нулю, номера GPIO недействительны или совпадают, `*handle` или `value` равен NULL |
| `ESP_ERR_INVALID_STATE` | Объект тахометра уже инициализирован (`*handle` не равен NULL) |
| `ESP_ERR_NO_MEM` | Не удалось выделить память для объекта тахометра |
| `ESP_FAIL` | Ошибка инициализации или конфигурации PCNT, ошибка создания или запуска ESP-Timer |
## Ограничения
1. **Переполнение PCNT счётчика** — модуль PCNT использует точки наблюдения на ±32767. При высоких значениях RPM накопленный счётчик может переполниться. Необходимо убедиться, что комбинация количества импульсов на оборот и ожидаемого диапазона RPM остаётся в безопасных пределах.
2. **Абсолютное значение RPM** — направление вращения игнорируется. Компонент возвращает только модуль скорости, без информации о направлении.
3. **16-битное значение RPM** — возвращаемое значение имеет тип `uint16_t`, максимальное значение — 65535. При очень высоких скоростях вращения значение может не поместиться.
4. **Один GPIO на фазу** — каждая фаза энкодера (A и B) должна быть назначена на отдельный GPIO. Назначение одинакового номера GPIO на обе фазы вернёт ошибку `ESP_ERR_INVALID_ARG`.
## Требования для сборки
- ESP-IDF (фреймворк для ESP32)
- FreeRTOS (входит в состав ESP-IDF)
- Компонент ESP-IDF `pulse_cnt` (драйвер PCNT)
- Компонент ESP-IDF `esp_timer` (ESP-Timer)
- Компонент ESP-IDF `driver` (GPIO driver)
## Установка
```bash
cd ваш_проект/components
git clone https://github.com/aZholtikov/zh_tachometer
```
```c
#include "zh_tachometer.h"
```
+95 -78
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@@ -1,6 +1,6 @@
#include "zh_tachometer.h" #include "zh_tachometer.h"
#define TAG "zh_tachometer" static const char *TAG = "zh_tachometer";
#define ZH_LOGI(msg, ...) ESP_LOGI(TAG, msg, ##__VA_ARGS__) #define ZH_LOGI(msg, ...) ESP_LOGI(TAG, msg, ##__VA_ARGS__)
#define ZH_LOGE(msg, err, ...) ESP_LOGE(TAG, "[%s:%d:%s] " msg, __FILE__, __LINE__, esp_err_to_name(err), ##__VA_ARGS__) #define ZH_LOGE(msg, err, ...) ESP_LOGE(TAG, "[%s:%d:%s] " msg, __FILE__, __LINE__, esp_err_to_name(err), ##__VA_ARGS__)
@@ -21,6 +21,13 @@
return; \ return; \
} }
#define ZH_ERROR_CHECK_CONT(cond, cleanup, msg, ...) \
if (!(cond)) \
{ \
ZH_LOGE(msg, ESP_FAIL, ##__VA_ARGS__); \
cleanup; \
}
/** /**
* @brief Internal handle structure for the tachometer driver. * @brief Internal handle structure for the tachometer driver.
* *
@@ -30,8 +37,10 @@
* *
* @note This structure is opaque to callers and must only be accessed * @note This structure is opaque to callers and must only be accessed
* through the public API functions. * through the public API functions.
* @warning The timer callback runs from ISR context and must not call * @warning The timer callback runs from the esp_timer service task context
* blocking or long-running operations. * (default ESP_TIMER_TASK dispatch method), not from an ISR. Blocking
* or long-running operations in the callback will delay other esp_timer
* callbacks and must be avoided.
*/ */
struct _zh_tachometer_handle_t struct _zh_tachometer_handle_t
{ {
@@ -39,7 +48,7 @@ struct _zh_tachometer_handle_t
pcnt_channel_handle_t pcnt_channel_a_handle; /*!< PCNT channel A handle (edge detector) */ pcnt_channel_handle_t pcnt_channel_a_handle; /*!< PCNT channel A handle (edge detector) */
pcnt_channel_handle_t pcnt_channel_b_handle; /*!< PCNT channel B handle (edge detector) */ pcnt_channel_handle_t pcnt_channel_b_handle; /*!< PCNT channel B handle (edge detector) */
esp_timer_handle_t esp_timer_handle; /*!< ESP-Timer handle for 100 Hz RPM sampling */ esp_timer_handle_t esp_timer_handle; /*!< ESP-Timer handle for 100 Hz RPM sampling */
uint16_t value; /*!< Last computed RPM value (absolute) */ volatile uint16_t value; /*!< Last computed RPM value (absolute) */
uint16_t encoder_pulses; /*!< Pulses per one full rotation */ uint16_t encoder_pulses; /*!< Pulses per one full rotation */
}; };
@@ -61,7 +70,7 @@ static esp_err_t _zh_tachometer_validate_config(const zh_tachometer_init_config_
* Configures the PCNT unit with accumulation mode, glitch filter (1000 ns), * Configures the PCNT unit with accumulation mode, glitch filter (1000 ns),
* two channels for encoder phases A and B, edge/level actions for direction * two channels for encoder phases A and B, edge/level actions for direction
* counting, and watch points at ±32767. Starts the unit and clears the * counting, and watch points at ±32767. Starts the unit and clears the
* counter. Optionally disables GPIO pull-ups if configured. * counter. Configures GPIO pull-ups according to the `pullup` setting.
* *
* @param config Pointer to the initialization configuration * @param config Pointer to the initialization configuration
* @param handle Pointer to the initialized tachometer handle * @param handle Pointer to the initialized tachometer handle
@@ -88,11 +97,13 @@ static esp_err_t _zh_tachometer_timer_init(zh_tachometer_handle_t *handle);
/** /**
* @brief ESP-Timer alarm callback for RPM sampling. * @brief ESP-Timer alarm callback for RPM sampling.
* *
* Executed every 10 ms from ISR context. Reads the accumulated PCNT count, * Executed every 10 ms from the esp_timer service task context (default
* ESP_TIMER_TASK dispatch method). Reads the accumulated PCNT count,
* clears it, and converts it to RPM using the formula: * clears it, and converts it to RPM using the formula:
* *
* RPM = (count * 100.0 / pulses_per_rev) * 60 * RPM = (count * 100.0 / (4 * pulses_per_rev)) * 60
* *
* The factor of 4 accounts for quadrature encoding (4 edges per cycle).
* The result is stored as an absolute value (direction discarded). * The result is stored as an absolute value (direction discarded).
* *
* @param arg Pointer to the tachometer handle * @param arg Pointer to the tachometer handle
@@ -108,11 +119,11 @@ esp_err_t zh_tachometer_init(const zh_tachometer_init_config_t *config, zh_tacho
*handle = heap_caps_calloc(1, sizeof(zh_tachometer_handle_t), MALLOC_CAP_8BIT); *handle = heap_caps_calloc(1, sizeof(zh_tachometer_handle_t), MALLOC_CAP_8BIT);
ZH_ERROR_CHECK(*handle != NULL, ESP_ERR_NO_MEM, NULL, "Tachometer initialization failed. Failed to allocate tachometer handle."); ZH_ERROR_CHECK(*handle != NULL, ESP_ERR_NO_MEM, NULL, "Tachometer initialization failed. Failed to allocate tachometer handle.");
ZH_ERROR_CHECK(_zh_tachometer_timer_init(*handle) == ESP_OK, ESP_FAIL, heap_caps_free(*handle); *handle = NULL, "Tachometer initialization failed. Timer initialization failed."); ZH_ERROR_CHECK(_zh_tachometer_timer_init(*handle) == ESP_OK, ESP_FAIL, heap_caps_free(*handle); *handle = NULL, "Tachometer initialization failed. Timer initialization failed.");
ZH_ERROR_CHECK(_zh_tachometer_pcnt_init(config, *handle) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(esp_timer_stop((*handle)->esp_timer_handle) == ESP_OK, ESP_FAIL, NULL, "Timer stop fail.")};
{ZH_ERROR_CHECK(esp_timer_delete((*handle)->esp_timer_handle) == ESP_OK, ESP_FAIL, NULL, "Timer delete fail.")};
heap_caps_free(*handle); *handle = NULL, "Tachometer initialization failed. PCNT initialization failed.");
(*handle)->encoder_pulses = config->encoder_pulses; (*handle)->encoder_pulses = config->encoder_pulses;
ZH_ERROR_CHECK(_zh_tachometer_pcnt_init(config, *handle) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK_CONT(esp_timer_stop((*handle)->esp_timer_handle) == ESP_OK, NULL, "Timer stop fail.")};
{ZH_ERROR_CHECK_CONT(esp_timer_delete((*handle)->esp_timer_handle) == ESP_OK, NULL, "Timer delete fail.")};
heap_caps_free(*handle); *handle = NULL, "Tachometer initialization failed. PCNT initialization failed.");
ZH_LOGI("Tachometer initialization completed successfully."); ZH_LOGI("Tachometer initialization completed successfully.");
return ESP_OK; return ESP_OK;
} }
@@ -121,15 +132,15 @@ esp_err_t zh_tachometer_deinit(zh_tachometer_handle_t **handle)
{ {
ZH_LOGI("Tachometer deinitialization started."); ZH_LOGI("Tachometer deinitialization started.");
ZH_ERROR_CHECK(handle != NULL && *handle != NULL, ESP_ERR_INVALID_ARG, NULL, "Tachometer deinitialization failed. Invalid argument."); ZH_ERROR_CHECK(handle != NULL && *handle != NULL, ESP_ERR_INVALID_ARG, NULL, "Tachometer deinitialization failed. Invalid argument.");
ZH_ERROR_CHECK(pcnt_unit_stop((*handle)->pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "Tachometer deinitialization failed. PCNT unit stop fail."); ZH_ERROR_CHECK_CONT(esp_timer_stop((*handle)->esp_timer_handle) == ESP_OK, NULL, "Tachometer deinitialization failed. Timer stop fail.");
ZH_ERROR_CHECK(pcnt_unit_disable((*handle)->pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "Tachometer deinitialization failed. PCNT unit disable fail."); ZH_ERROR_CHECK_CONT(esp_timer_delete((*handle)->esp_timer_handle) == ESP_OK, NULL, "Tachometer deinitialization failed. Timer delete fail.");
ZH_ERROR_CHECK(pcnt_unit_remove_watch_point((*handle)->pcnt_unit_handle, 32767) == ESP_OK, ESP_FAIL, NULL, "Tachometer deinitialization failed. PCNT unit remove watch point fail."); ZH_ERROR_CHECK_CONT(pcnt_unit_stop((*handle)->pcnt_unit_handle) == ESP_OK, NULL, "Tachometer deinitialization failed. PCNT unit stop fail.");
ZH_ERROR_CHECK(pcnt_unit_remove_watch_point((*handle)->pcnt_unit_handle, -32767) == ESP_OK, ESP_FAIL, NULL, "Tachometer deinitialization failed. PCNT unit remove watch point fail."); ZH_ERROR_CHECK_CONT(pcnt_unit_disable((*handle)->pcnt_unit_handle) == ESP_OK, NULL, "Tachometer deinitialization failed. PCNT unit disable fail.");
ZH_ERROR_CHECK(pcnt_del_channel((*handle)->pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "Tachometer deinitialization failed. PCNT delete channel fail."); ZH_ERROR_CHECK_CONT(pcnt_unit_remove_watch_point((*handle)->pcnt_unit_handle, 32767) == ESP_OK, NULL, "Tachometer deinitialization failed. PCNT unit remove watch point fail.");
ZH_ERROR_CHECK(pcnt_del_channel((*handle)->pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, NULL, "Tachometer deinitialization failed. PCNT delete channel fail."); ZH_ERROR_CHECK_CONT(pcnt_unit_remove_watch_point((*handle)->pcnt_unit_handle, -32767) == ESP_OK, NULL, "Tachometer deinitialization failed. PCNT unit remove watch point fail.");
ZH_ERROR_CHECK(pcnt_del_unit((*handle)->pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "Tachometer deinitialization failed. PCNT delete unit fail."); ZH_ERROR_CHECK_CONT(pcnt_del_channel((*handle)->pcnt_channel_a_handle) == ESP_OK, NULL, "Tachometer deinitialization failed. PCNT delete channel fail.");
ZH_ERROR_CHECK(esp_timer_stop((*handle)->esp_timer_handle) == ESP_OK, ESP_FAIL, NULL, "Tachometer deinitialization failed. Timer stop fail."); ZH_ERROR_CHECK_CONT(pcnt_del_channel((*handle)->pcnt_channel_b_handle) == ESP_OK, NULL, "Tachometer deinitialization failed. PCNT delete channel fail.");
ZH_ERROR_CHECK(esp_timer_delete((*handle)->esp_timer_handle) == ESP_OK, ESP_FAIL, NULL, "Tachometer deinitialization failed. Timer delete fail."); ZH_ERROR_CHECK_CONT(pcnt_del_unit((*handle)->pcnt_unit_handle) == ESP_OK, NULL, "Tachometer deinitialization failed. PCNT delete unit fail.");
heap_caps_free(*handle); heap_caps_free(*handle);
*handle = NULL; *handle = NULL;
ZH_LOGI("Tachometer deinitialization completed successfully."); ZH_LOGI("Tachometer deinitialization completed successfully.");
@@ -138,10 +149,10 @@ esp_err_t zh_tachometer_deinit(zh_tachometer_handle_t **handle)
esp_err_t zh_tachometer_get(zh_tachometer_handle_t **handle, uint16_t *value) esp_err_t zh_tachometer_get(zh_tachometer_handle_t **handle, uint16_t *value)
{ {
ZH_LOGI("Tachometer get position started."); ZH_LOGI("Tachometer get RPM started.");
ZH_ERROR_CHECK(handle != NULL && *handle != NULL && value != NULL, ESP_ERR_INVALID_ARG, NULL, "Tachometer get position failed. Invalid argument."); ZH_ERROR_CHECK(handle != NULL && *handle != NULL && value != NULL, ESP_ERR_INVALID_ARG, NULL, "Tachometer get RPM failed. Invalid argument.");
*value = (*handle)->value; *value = (*handle)->value;
ZH_LOGI("Tachometer get position completed successfully."); ZH_LOGI("Tachometer get RPM completed successfully.");
return ESP_OK; return ESP_OK;
} }
@@ -153,8 +164,16 @@ static esp_err_t _zh_tachometer_validate_config(const zh_tachometer_init_config_
static esp_err_t _zh_tachometer_pcnt_init(const zh_tachometer_init_config_t *config, zh_tachometer_handle_t *handle) static esp_err_t _zh_tachometer_pcnt_init(const zh_tachometer_init_config_t *config, zh_tachometer_handle_t *handle)
{ {
ZH_ERROR_CHECK(config->a_gpio_number < GPIO_NUM_MAX && config->b_gpio_number < GPIO_NUM_MAX, ESP_ERR_INVALID_ARG, NULL, "Invalid GPIO number.") ZH_ERROR_CHECK(config->a_gpio_number < GPIO_NUM_MAX && config->b_gpio_number < GPIO_NUM_MAX, ESP_ERR_INVALID_ARG, NULL, "Invalid GPIO number.");
ZH_ERROR_CHECK(config->a_gpio_number != config->b_gpio_number, ESP_ERR_INVALID_ARG, NULL, "Encoder A and B GPIO is same.") ZH_ERROR_CHECK(config->a_gpio_number != config->b_gpio_number, ESP_ERR_INVALID_ARG, NULL, "Encoder A and B GPIO is same.");
gpio_config_t io_config = {
.pin_bit_mask = (1ULL << config->a_gpio_number) | (1ULL << config->b_gpio_number),
.mode = GPIO_MODE_INPUT,
.pull_up_en = config->pullup == true ? GPIO_PULLUP_ENABLE : GPIO_PULLUP_DISABLE,
.pull_down_en = GPIO_PULLDOWN_DISABLE,
.intr_type = GPIO_INTR_DISABLE,
};
ZH_ERROR_CHECK(gpio_config(&io_config) == ESP_OK, ESP_FAIL, NULL, "GPIO initialization failed.");
pcnt_unit_config_t pcnt_unit_config = { pcnt_unit_config_t pcnt_unit_config = {
.high_limit = 32767, .high_limit = 32767,
.low_limit = -32767, .low_limit = -32767,
@@ -166,72 +185,67 @@ static esp_err_t _zh_tachometer_pcnt_init(const zh_tachometer_init_config_t *con
.max_glitch_ns = 1000, .max_glitch_ns = 1000,
}; };
ZH_ERROR_CHECK(pcnt_unit_set_glitch_filter(pcnt_unit_handle, &pcnt_glitch_filter_config) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_unit_set_glitch_filter(pcnt_unit_handle, &pcnt_glitch_filter_config) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
pcnt_chan_config_t pcnt_chan_a_config = { pcnt_chan_config_t pcnt_chan_a_config = {
.edge_gpio_num = config->a_gpio_number, .edge_gpio_num = config->a_gpio_number,
.level_gpio_num = config->b_gpio_number, .level_gpio_num = config->b_gpio_number,
}; };
pcnt_channel_handle_t pcnt_channel_a_handle = NULL; pcnt_channel_handle_t pcnt_channel_a_handle = NULL;
ZH_ERROR_CHECK(pcnt_new_channel(pcnt_unit_handle, &pcnt_chan_a_config, &pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_new_channel(pcnt_unit_handle, &pcnt_chan_a_config, &pcnt_channel_a_handle) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
pcnt_chan_config_t pcnt_chan_b_config = { pcnt_chan_config_t pcnt_chan_b_config = {
.edge_gpio_num = config->b_gpio_number, .edge_gpio_num = config->b_gpio_number,
.level_gpio_num = config->a_gpio_number, .level_gpio_num = config->a_gpio_number,
}; };
pcnt_channel_handle_t pcnt_channel_b_handle = NULL; pcnt_channel_handle_t pcnt_channel_b_handle = NULL;
ZH_ERROR_CHECK(pcnt_new_channel(pcnt_unit_handle, &pcnt_chan_b_config, &pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_new_channel(pcnt_unit_handle, &pcnt_chan_b_config, &pcnt_channel_b_handle) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
ZH_ERROR_CHECK(pcnt_channel_set_edge_action(pcnt_channel_a_handle, PCNT_CHANNEL_EDGE_ACTION_DECREASE, PCNT_CHANNEL_EDGE_ACTION_HOLD) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_channel_set_edge_action(pcnt_channel_a_handle, PCNT_CHANNEL_EDGE_ACTION_DECREASE, PCNT_CHANNEL_EDGE_ACTION_INCREASE) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
ZH_ERROR_CHECK(pcnt_channel_set_level_action(pcnt_channel_a_handle, PCNT_CHANNEL_LEVEL_ACTION_KEEP, PCNT_CHANNEL_LEVEL_ACTION_HOLD) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_channel_set_level_action(pcnt_channel_a_handle, PCNT_CHANNEL_LEVEL_ACTION_KEEP, PCNT_CHANNEL_LEVEL_ACTION_INVERSE) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
ZH_ERROR_CHECK(pcnt_channel_set_edge_action(pcnt_channel_b_handle, PCNT_CHANNEL_EDGE_ACTION_INCREASE, PCNT_CHANNEL_EDGE_ACTION_HOLD) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_channel_set_edge_action(pcnt_channel_b_handle, PCNT_CHANNEL_EDGE_ACTION_INCREASE, PCNT_CHANNEL_EDGE_ACTION_DECREASE) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
ZH_ERROR_CHECK(pcnt_channel_set_level_action(pcnt_channel_b_handle, PCNT_CHANNEL_LEVEL_ACTION_KEEP, PCNT_CHANNEL_LEVEL_ACTION_HOLD) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_channel_set_level_action(pcnt_channel_b_handle, PCNT_CHANNEL_LEVEL_ACTION_KEEP, PCNT_CHANNEL_LEVEL_ACTION_INVERSE) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
ZH_ERROR_CHECK(pcnt_unit_add_watch_point(pcnt_unit_handle, 32767) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_unit_add_watch_point(pcnt_unit_handle, 32767) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
ZH_ERROR_CHECK(pcnt_unit_add_watch_point(pcnt_unit_handle, -32767) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_unit_add_watch_point(pcnt_unit_handle, -32767) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_unit_remove_watch_point(pcnt_unit_handle, 32767) == ESP_OK, ESP_FAIL, NULL, "PCNT unit remove watch point fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_unit_remove_watch_point(pcnt_unit_handle, 32767) == ESP_OK, NULL, "PCNT unit remove watch point fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
ZH_ERROR_CHECK(pcnt_unit_enable(pcnt_unit_handle) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_unit_enable(pcnt_unit_handle) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_unit_remove_watch_point(pcnt_unit_handle, 32767) == ESP_OK, ESP_FAIL, NULL, "PCNT unit remove watch point fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_unit_remove_watch_point(pcnt_unit_handle, 32767) == ESP_OK, NULL, "PCNT unit remove watch point fail.")};
{ZH_ERROR_CHECK(pcnt_unit_remove_watch_point(pcnt_unit_handle, -32767) == ESP_OK, ESP_FAIL, NULL, "PCNT unit remove watch point fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_unit_remove_watch_point(pcnt_unit_handle, -32767) == ESP_OK, NULL, "PCNT unit remove watch point fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
ZH_ERROR_CHECK(pcnt_unit_clear_count(pcnt_unit_handle) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_unit_clear_count(pcnt_unit_handle) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_unit_disable(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT unit disable fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_unit_disable(pcnt_unit_handle) == ESP_OK, NULL, "PCNT unit disable fail.")};
{ZH_ERROR_CHECK(pcnt_unit_remove_watch_point(pcnt_unit_handle, 32767) == ESP_OK, ESP_FAIL, NULL, "PCNT unit remove watch point fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_unit_remove_watch_point(pcnt_unit_handle, 32767) == ESP_OK, NULL, "PCNT unit remove watch point fail.")};
{ZH_ERROR_CHECK(pcnt_unit_remove_watch_point(pcnt_unit_handle, -32767) == ESP_OK, ESP_FAIL, NULL, "PCNT unit remove watch point fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_unit_remove_watch_point(pcnt_unit_handle, -32767) == ESP_OK, NULL, "PCNT unit remove watch point fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
ZH_ERROR_CHECK(pcnt_unit_start(pcnt_unit_handle) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(pcnt_unit_start(pcnt_unit_handle) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(pcnt_unit_disable(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT unit disable fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_unit_disable(pcnt_unit_handle) == ESP_OK, NULL, "PCNT unit disable fail.")};
{ZH_ERROR_CHECK(pcnt_unit_remove_watch_point(pcnt_unit_handle, 32767) == ESP_OK, ESP_FAIL, NULL, "PCNT unit remove watch point fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_unit_remove_watch_point(pcnt_unit_handle, 32767) == ESP_OK, NULL, "PCNT unit remove watch point fail.")};
{ZH_ERROR_CHECK(pcnt_unit_remove_watch_point(pcnt_unit_handle, -32767) == ESP_OK, ESP_FAIL, NULL, "PCNT unit remove watch point fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_unit_remove_watch_point(pcnt_unit_handle, -32767) == ESP_OK, NULL, "PCNT unit remove watch point fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_a_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete channel fail.")}; {ZH_ERROR_CHECK_CONT(pcnt_del_channel(pcnt_channel_b_handle) == ESP_OK, NULL, "PCNT delete channel fail.")};
{ZH_ERROR_CHECK(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, ESP_FAIL, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed."); {ZH_ERROR_CHECK_CONT(pcnt_del_unit(pcnt_unit_handle) == ESP_OK, NULL, "PCNT delete unit fail.")}, "PCNT initialization failed.");
if (config->pullup == false)
{
ZH_ERROR_CHECK(gpio_pullup_dis((gpio_num_t)config->a_gpio_number) == ESP_OK, ESP_FAIL, NULL, "GPIO pullup disable fail.");
ZH_ERROR_CHECK(gpio_pullup_dis((gpio_num_t)config->b_gpio_number) == ESP_OK, ESP_FAIL, NULL, "GPIO pullup disable fail.");
}
handle->pcnt_unit_handle = pcnt_unit_handle; handle->pcnt_unit_handle = pcnt_unit_handle;
handle->pcnt_channel_a_handle = pcnt_channel_a_handle; handle->pcnt_channel_a_handle = pcnt_channel_a_handle;
handle->pcnt_channel_b_handle = pcnt_channel_b_handle; handle->pcnt_channel_b_handle = pcnt_channel_b_handle;
@@ -246,16 +260,19 @@ static esp_err_t _zh_tachometer_timer_init(zh_tachometer_handle_t *handle)
}; };
ZH_ERROR_CHECK(esp_timer_create(&timer_args, &handle->esp_timer_handle) == ESP_OK, ESP_FAIL, NULL, "Timer initialization failed."); ZH_ERROR_CHECK(esp_timer_create(&timer_args, &handle->esp_timer_handle) == ESP_OK, ESP_FAIL, NULL, "Timer initialization failed.");
ZH_ERROR_CHECK(esp_timer_start_periodic(handle->esp_timer_handle, 10000) == ESP_OK, ESP_FAIL, ZH_ERROR_CHECK(esp_timer_start_periodic(handle->esp_timer_handle, 10000) == ESP_OK, ESP_FAIL,
{ZH_ERROR_CHECK(esp_timer_delete(handle->esp_timer_handle) == ESP_OK, ESP_FAIL, NULL, "Timer delete fail.")}, "Timer initialization failed."); {ZH_ERROR_CHECK_CONT(esp_timer_delete(handle->esp_timer_handle) == ESP_OK, NULL, "Timer delete fail.")}, "Timer initialization failed.");
return ESP_OK; return ESP_OK;
} }
static void IRAM_ATTR _zh_tachometer_timer_on_alarm_cb(void *arg) static void _zh_tachometer_timer_on_alarm_cb(void *arg)
{ {
zh_tachometer_handle_t *handle = (zh_tachometer_handle_t *)arg; zh_tachometer_handle_t *handle = (zh_tachometer_handle_t *)arg;
int pcnt_count = 0; int pcnt_count = 0;
if (handle->pcnt_unit_handle != NULL)
{
ZH_ERROR_CHECK_VOID(pcnt_unit_get_count(handle->pcnt_unit_handle, &pcnt_count) == ESP_OK, NULL, "PCNT internal error."); ZH_ERROR_CHECK_VOID(pcnt_unit_get_count(handle->pcnt_unit_handle, &pcnt_count) == ESP_OK, NULL, "PCNT internal error.");
ZH_ERROR_CHECK_VOID(pcnt_unit_clear_count(handle->pcnt_unit_handle) == ESP_OK, NULL, "PCNT internal error."); ZH_ERROR_CHECK_VOID(pcnt_unit_clear_count(handle->pcnt_unit_handle) == ESP_OK, NULL, "PCNT internal error.");
float value_temp = ((pcnt_count * 100.0) / handle->encoder_pulses) * 60; float value_temp = (pcnt_count * 100.0) / (4.0 * handle->encoder_pulses) * 60.0;
handle->value = (uint16_t)fabs(value_temp); handle->value = (uint16_t)fabsf(value_temp);
}
} }