feat: initial
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.DS_Store
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+6
-1
@@ -1 +1,6 @@
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idf_component_register(SRCS "main.c" INCLUDE_DIRS "include")
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if(${IDF_VERSION_MAJOR} STREQUAL 6)
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set(requires esp_driver_rmt)
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else()
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set(requires driver)
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endif()
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idf_component_register(SRCS "zh_tm1637.c" INCLUDE_DIRS "include" REQUIRES ${requires})
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@@ -1,3 +1,107 @@
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# esp_component_template
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# ESP32 ESP-IDF component for TM1637 led drive (via RMT driver)
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esp_component_template
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## Tested on
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1. [ESP32 ESP-IDF v6.0.1](https://docs.espressif.com/projects/esp-idf/en/v6.0.1/esp32/index.html)
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## SAST Tools
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[PVS-Studio](https://pvs-studio.com/pvs-studio/?utm_source=website&utm_medium=github&utm_campaign=open_source) - static analyzer for C, C++, C#, and Java code.
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## Features
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1. Support up to 4 led drives on one device (depends on the used ESP32 chip).
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## Note
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1. Just simple driver without any additives.
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## Attention
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1. Original ESP32, ESP32-S2 and ESP32-C2 not supported.
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2. For correct operation, please enable the following settings in the menuconfig:
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```text
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CONFIG_GPIO_CTRL_FUNC_IN_IRAM
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CONFIG_RMT_ENCODER_FUNC_IN_IRAM
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CONFIG_RMT_TX_ISR_HANDLER_IN_IRAM
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CONFIG_RMT_RX_ISR_HANDLER_IN_IRAM
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CONFIG_RMT_RECV_FUNC_IN_IRAM
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CONFIG_RMT_TX_ISR_CACHE_SAFE
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CONFIG_RMT_RX_ISR_CACHE_SAFE
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```
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## Using
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In an existing project, run the following command to install the components:
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```text
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cd ../your_project/components
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git clone https://github.com/aZholtikov/zh_tm1637
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```
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In the application, add the component:
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```c
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#include "zh_tm1637.h"
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```
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## Examples
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One 4 segment led drive on device:
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```c
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// Numerical symbols without dot (with dot).
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// 0x3F (0xBF) - 0 (0.).
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// 0x06 (0x86) - 1 (1.).
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// 0x5B (0xDB) - 2 (2.).
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// 0x4F (0xCF) - 3 (3.).
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// 0x66 (0xE6) - 4 (4.).
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// 0x6D (0xED) - 5 (5.).
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// 0x7D (0xFD) - 6 (6.).
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// 0x07 (0x87) - 7 (7.).
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// 0x7F (0xFF) - 8 (8.).
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// 0x6F (0xEF) - 9 (9.).
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// 0x40 - Minus.
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// 0x00 - Empty.
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// 0x80 - Dot.
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#include "zh_tm1637.h"
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zh_tm1637_handle_t tm1637_handle = {0};
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void app_main(void)
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{
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esp_log_level_set("zh_tm1637", ESP_LOG_ERROR);
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zh_tm1637_init_config_t config = ZH_TM1637_INIT_CONFIG_DEFAULT();
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config.clk_gpio = GPIO_NUM_25;
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config.dio_gpio = GPIO_NUM_26;
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zh_tm1637_init(&config, &tm1637_handle);
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zh_tm1637_set_brightness(&tm1637_handle, 7); // Set brightness.
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uint8_t clear_symbols[4] = {0x00};
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zh_tm1637_print(&tm1637_handle, 0, clear_symbols, sizeof(clear_symbols)); // Clear LCD.
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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for (;;)
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{
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uint8_t symbol = 0x3F;
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zh_tm1637_print(&tm1637_handle, 0, &symbol, sizeof(symbol)); // 0 on 0 position.
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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zh_tm1637_print(&tm1637_handle, 1, &symbol, sizeof(symbol)); // 0 on 1 position.
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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zh_tm1637_print(&tm1637_handle, 0, clear_symbols, sizeof(clear_symbols)); // Clear LCD.
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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uint8_t symbols[] = {0x40, 0x06, 0x5B, 0x4F};
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zh_tm1637_print(&tm1637_handle, 0, symbols, sizeof(symbols)); // -123 start from 0 position.
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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zh_tm1637_print(&tm1637_handle, 0, clear_symbols, sizeof(clear_symbols)); // Clear LCD.
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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zh_tm1637_print(&tm1637_handle, 1, symbols, sizeof(symbols)); // -123 start from 1 position.
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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zh_tm1637_print(&tm1637_handle, 0, clear_symbols, sizeof(clear_symbols)); // Clear LCD.
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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const zh_tm1637_stats_t *stats = zh_tm1637_get_stats();
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printf("Number of RMT driver error: %ld.\n", stats->rmt_driver_error);
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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}
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```
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/**
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* @file zh_tm1637.h
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*/
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#pragma once
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#include "esp_log.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "driver/rmt_tx.h"
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/**
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* @brief TM1637 led drive initial default values.
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*/
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#define ZH_TM1637_INIT_CONFIG_DEFAULT() \
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{ \
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.clk_gpio = GPIO_NUM_MAX, \
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.dio_gpio = GPIO_NUM_MAX}
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/**
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* @brief Structure for initial initialization of TM1637 led drive.
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*/
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typedef struct
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{
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gpio_num_t clk_gpio; /*!< CLK GPIO. */
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gpio_num_t dio_gpio; /*!< DIO GPIO. */
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} zh_tm1637_init_config_t;
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/**
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* @brief TM1637 led drive handle.
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*/
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typedef struct
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{
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bool is_initialized; /*!< Led drive initialization flag. */
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int8_t brightness; /*!< Led drive brightness. */
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rmt_sync_manager_handle_t synchro; /*!< Unique RMT TX device sync manager handle. */
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rmt_channel_handle_t tx_channel[2]; /*!< Unique RMT TX device handles. */
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rmt_encoder_handle_t copy_encoder; /*!< Unique copy encoder handle. */
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} zh_tm1637_handle_t;
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/**
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* @brief Structure for error statistics storage.
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*/
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typedef struct
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{
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uint32_t rmt_driver_error; /*!< Number of RMT driver error. */
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} zh_tm1637_stats_t;
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/**
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* @brief Initialize TM1637 led drive.
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*
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* @param[in] config Pointer to TM1637 initialized configuration structure. Can point to a temporary variable.
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* @param[out] handle Pointer to unique TM1637 handle.
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*
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* @attention I2C driver must be initialized first.
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*
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* @note Before initialize the expander recommend initialize zh_tm1637_init_config_t structure with default values.
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*
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* @code zh_tm1637_init_config_t config = ZH_TM1637_INIT_CONFIG_DEFAULT() @endcode
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*
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* @return ESP_OK if success or an error code otherwise.
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*/
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esp_err_t zh_tm1637_init(const zh_tm1637_init_config_t *config, zh_tm1637_handle_t *handle);
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/**
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* @brief Deinitialize TM1637 led drive.
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*
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* @param[in] handle Pointer to unique TM1637 handle.
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*
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* @return ESP_OK if success or an error code otherwise.
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*/
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esp_err_t zh_tm1637_deinit(zh_tm1637_handle_t *handle);
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/**
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* @brief Prints an symbols to the LED.
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*
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* @param[in] handle Pointer to unique TM1637 handle.
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* @param[in] position Initial print position (0-5).
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* @param[in] symbols Pointer to symbols to be displayed.
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* @param[in] size The symbols quantity to be displayed.
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*
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* @return ESP_OK if success or an error code otherwise.
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*/
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esp_err_t zh_tm1637_print(zh_tm1637_handle_t *handle, uint8_t position, uint8_t *symbols, uint8_t size);
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/**
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* @brief Set brightness of the LED.
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*
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* @param[in] handle Pointer to unique TM1637 handle.
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* @param[in] brightness Brightness (0-7). -1 - LED OFF.
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*
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* @return ESP_OK if success or an error code otherwise.
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*/
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esp_err_t zh_tm1637_set_brightness(zh_tm1637_handle_t *handle, int8_t brightness);
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/**
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* @brief Get error statistics.
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*
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* @return Pointer to the statistics structure.
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*/
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const zh_tm1637_stats_t *zh_tm1637_get_stats(void);
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/**
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* @brief Reset error statistics.
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*/
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void zh_tm1637_reset_stats(void);
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#ifdef __cplusplus
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}
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#endif
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1.0.0
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+173
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#include "zh_tm1637.h"
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static const char *TAG = "zh_tm1637";
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#define ZH_LOGI(msg, ...) ESP_LOGI(TAG, msg, ##__VA_ARGS__)
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#define ZH_LOGE(msg, err, ...) ESP_LOGE(TAG, "[%s:%d:%s] " msg, __FILE__, __LINE__, esp_err_to_name(err), ##__VA_ARGS__)
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#define ZH_ERROR_CHECK(cond, err, cleanup, msg, ...) \
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if (!(cond)) \
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{ \
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ZH_LOGE(msg, err, ##__VA_ARGS__); \
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cleanup; \
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return err; \
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}
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static zh_tm1637_stats_t _stats = {0};
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static esp_err_t _zh_tm1637_validate_config(const zh_tm1637_init_config_t *config, zh_tm1637_handle_t *handle);
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static esp_err_t _zh_tm1637_rmt_init(const zh_tm1637_init_config_t *config, zh_tm1637_handle_t *handle);
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static esp_err_t _zh_tm1637_send_data(zh_tm1637_handle_t *handle, uint8_t *symbols, uint8_t size);
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esp_err_t zh_tm1637_init(const zh_tm1637_init_config_t *config, zh_tm1637_handle_t *handle) // -V2008
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{
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ZH_LOGI("Led drive initialization started.");
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#if defined CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C2
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ZH_LOGE("Led drive initialization failed. Unsupported device.", ESP_ERR_NOT_ALLOWED);
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return ESP_ERR_NOT_ALLOWED;
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#endif
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ZH_ERROR_CHECK(config != NULL && handle != NULL, ESP_ERR_INVALID_ARG, NULL, "Led drive initialization failed. Invalid argument.");
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ZH_ERROR_CHECK(handle->is_initialized == false, ESP_ERR_INVALID_STATE, NULL, "Led drive initialization failed. Led drive is already initialized.");
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ZH_ERROR_CHECK(_zh_tm1637_validate_config(config, handle) == ESP_OK, ESP_FAIL, NULL, "Led drive initialization failed. Initial configuration check failed.");
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ZH_ERROR_CHECK(_zh_tm1637_rmt_init(config, handle) == ESP_OK, ESP_FAIL, , "Led drive initialization failed. RMT initialization failed.");
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handle->brightness = 7;
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handle->is_initialized = true;
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ZH_LOGI("Led drive initialization completed successfully.");
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return ESP_OK;
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}
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esp_err_t zh_tm1637_deinit(zh_tm1637_handle_t *handle) // -V2008
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{
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ZH_LOGI("Led drive deinitialization started.");
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ZH_ERROR_CHECK(handle != NULL, ESP_ERR_INVALID_ARG, NULL, "Led drive deinitialization failed. Invalid argument.");
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ZH_ERROR_CHECK(handle->is_initialized == true, ESP_FAIL, NULL, "Led drive deinitialization failed. Led drive not initialized.");
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ZH_ERROR_CHECK(rmt_disable(handle->tx_channel[0]) == ESP_OK, ESP_FAIL, NULL, "Led drive deinitialization failed. TX channel disable failed.");
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ZH_ERROR_CHECK(rmt_disable(handle->tx_channel[1]) == ESP_OK, ESP_FAIL, NULL, "Led drive deinitialization failed. RX channel disable failed.");
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ZH_ERROR_CHECK(rmt_del_encoder(handle->copy_encoder) == ESP_OK, ESP_FAIL, NULL, "Led drive deinitialization failed. Delete encoder failed.");
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ZH_ERROR_CHECK(rmt_del_channel(handle->tx_channel[0]) == ESP_OK, ESP_FAIL, NULL, "Led drive deinitialization failed. Delete TX channel failed.");
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ZH_ERROR_CHECK(rmt_del_channel(handle->tx_channel[1]) == ESP_OK, ESP_FAIL, NULL, "Led drive deinitialization failed. Delete TX channel failed.");
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ZH_LOGI("Led drive deinitialization completed successfully.");
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return ESP_OK;
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}
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esp_err_t zh_tm1637_print(zh_tm1637_handle_t *handle, uint8_t position, uint8_t *symbols, uint8_t size) // -V2008
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{
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ZH_LOGI("Led drive printing started.");
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ZH_ERROR_CHECK(handle != NULL && symbols != NULL && position <= 5 && size > 0, ESP_ERR_INVALID_ARG, NULL, "Led drive printing failed. Invalid argument.");
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ZH_ERROR_CHECK(handle->is_initialized == true, ESP_FAIL, NULL, "Led drive printing failed. Led drive not initialized.");
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uint8_t set_data_command = 0x40;
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ZH_ERROR_CHECK(_zh_tm1637_send_data(handle, &set_data_command, 1) == ESP_OK, ESP_FAIL, NULL, "Led drive printing failed. RMT driver error.");
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uint8_t print_symbols_command[size + 1];
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print_symbols_command[0] = position | 0xC0;
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memcpy(&print_symbols_command[1], symbols, size);
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ZH_ERROR_CHECK(_zh_tm1637_send_data(handle, print_symbols_command, size + 1) == ESP_OK, ESP_FAIL, NULL, "Led drive printing failed. RMT driver error.");
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uint8_t control_display_command = (handle->brightness == -1) ? 0x80 : handle->brightness | 0x88;
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ZH_ERROR_CHECK(_zh_tm1637_send_data(handle, &control_display_command, 1) == ESP_OK, ESP_FAIL, NULL, "Led drive printing failed. RMT driver error.");
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ZH_LOGI("Led drive printing completed successfully.");
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return ESP_OK;
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}
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esp_err_t zh_tm1637_set_brightness(zh_tm1637_handle_t *handle, int8_t brightness)
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{
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ZH_LOGI("Led drive setup brightness started.");
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ZH_ERROR_CHECK(handle != NULL && brightness <= 7 && brightness >= -1, ESP_ERR_INVALID_ARG, NULL, "Led drive setup brightness failed. Invalid argument.");
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ZH_ERROR_CHECK(handle->is_initialized == true, ESP_FAIL, NULL, "Led drive setup brightness failed. Led drive not initialized.");
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handle->brightness = brightness;
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ZH_LOGI("Led drive setup brightness completed successfully.");
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return ESP_OK;
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}
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const zh_tm1637_stats_t *zh_tm1637_get_stats(void)
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{
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return &_stats;
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}
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void zh_tm1637_reset_stats(void)
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{
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ZH_LOGI("Error statistic reset started.");
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_stats.rmt_driver_error = 0;
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ZH_LOGI("Error statistic reset successfully.");
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}
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static esp_err_t _zh_tm1637_validate_config(const zh_tm1637_init_config_t *config, zh_tm1637_handle_t *handle)
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{
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ZH_ERROR_CHECK(config->clk_gpio < GPIO_NUM_MAX && config->dio_gpio < GPIO_NUM_MAX, ESP_ERR_INVALID_ARG, NULL, "Invalid GPIO number.")
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ZH_ERROR_CHECK(config->clk_gpio != config->dio_gpio, ESP_ERR_INVALID_ARG, NULL, "CLK GPIO and DIO GPIO is same.")
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return ESP_OK;
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}
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static esp_err_t _zh_tm1637_rmt_init(const zh_tm1637_init_config_t *config, zh_tm1637_handle_t *handle) // -V2008
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{
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rmt_tx_channel_config_t tx_chan_config = {
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.clk_src = RMT_CLK_SRC_DEFAULT,
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.mem_block_symbols = 48,
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.resolution_hz = 1000000,
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.trans_queue_depth = 4,
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.flags.init_level = 1,
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};
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tx_chan_config.gpio_num = config->clk_gpio;
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ZH_ERROR_CHECK(rmt_new_tx_channel(&tx_chan_config, &handle->tx_channel[0]) == ESP_OK, ESP_FAIL, NULL, "TX channel creation failed.");
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tx_chan_config.gpio_num = config->dio_gpio;
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ZH_ERROR_CHECK(rmt_new_tx_channel(&tx_chan_config, &handle->tx_channel[1]) == ESP_OK, ESP_FAIL, NULL, "TX channel creation failed.");
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rmt_copy_encoder_config_t copy_encoder_config = {};
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ZH_ERROR_CHECK(rmt_new_copy_encoder(©_encoder_config, &handle->copy_encoder) == ESP_OK, ESP_FAIL,
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ZH_ERROR_CHECK(rmt_del_channel(handle->tx_channel[0]) == ESP_OK, ESP_FAIL, NULL, "Delete channel failed.");
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ZH_ERROR_CHECK(rmt_del_channel(handle->tx_channel[1]) == ESP_OK, ESP_FAIL, NULL, "Delete channel failed."), "Copy encoder creation failed.");
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ZH_ERROR_CHECK(rmt_enable(handle->tx_channel[0]) == ESP_OK, ESP_FAIL,
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ZH_ERROR_CHECK(rmt_del_encoder(handle->copy_encoder) == ESP_OK, ESP_FAIL, NULL, "Delete encoder failed.");
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ZH_ERROR_CHECK(rmt_del_channel(handle->tx_channel[0]) == ESP_OK, ESP_FAIL, NULL, "Delete channel failed.");
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ZH_ERROR_CHECK(rmt_del_channel(handle->tx_channel[1]) == ESP_OK, ESP_FAIL, NULL, "Delete channel failed."), "Enable TX channel failed.");
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ZH_ERROR_CHECK(rmt_enable(handle->tx_channel[1]) == ESP_OK, ESP_FAIL,
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ZH_ERROR_CHECK(rmt_del_encoder(handle->copy_encoder) == ESP_OK, ESP_FAIL, NULL, "Delete encoder failed.");
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ZH_ERROR_CHECK(rmt_del_channel(handle->tx_channel[0]) == ESP_OK, ESP_FAIL, NULL, "Delete channel failed.");
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ZH_ERROR_CHECK(rmt_del_channel(handle->tx_channel[1]) == ESP_OK, ESP_FAIL, NULL, "Delete channel failed."), "Enable TX channel failed.");
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rmt_sync_manager_config_t synchro_config = {
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.tx_channel_array = handle->tx_channel,
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.array_size = sizeof(handle->tx_channel) / sizeof(handle->tx_channel[0]),
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};
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ZH_ERROR_CHECK(rmt_new_sync_manager(&synchro_config, &handle->synchro) == ESP_OK, ESP_FAIL,
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ZH_ERROR_CHECK(rmt_disable(handle->tx_channel[0]) == ESP_OK, ESP_FAIL, NULL, "TX channel disable failed.");
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ZH_ERROR_CHECK(rmt_disable(handle->tx_channel[1]) == ESP_OK, ESP_FAIL, NULL, "TX channel disable failed.");
|
||||
ZH_ERROR_CHECK(rmt_del_encoder(handle->copy_encoder) == ESP_OK, ESP_FAIL, NULL, "Delete encoder failed.");
|
||||
ZH_ERROR_CHECK(rmt_del_channel(handle->tx_channel[0]) == ESP_OK, ESP_FAIL, NULL, "Delete TX channel failed.");
|
||||
ZH_ERROR_CHECK(rmt_del_channel(handle->tx_channel[1]) == ESP_OK, ESP_FAIL, NULL, "Delete TX channel failed."), "Sync manager creation failed.");
|
||||
rmt_transmit_config_t tx_transmit_config = {.loop_count = 0, .flags.eot_level = 1};
|
||||
rmt_symbol_word_t init_symbols = {.duration0 = 10, .level0 = 1, .duration1 = 10, .level1 = 1};
|
||||
rmt_sync_reset(handle->synchro);
|
||||
ZH_ERROR_CHECK(rmt_transmit(handle->tx_channel[0], handle->copy_encoder, &init_symbols, sizeof(init_symbols), &tx_transmit_config) == ESP_OK, ESP_FAIL, ++_stats.rmt_driver_error, "RMT driver error.");
|
||||
ZH_ERROR_CHECK(rmt_transmit(handle->tx_channel[1], handle->copy_encoder, &init_symbols, sizeof(init_symbols), &tx_transmit_config) == ESP_OK, ESP_FAIL, ++_stats.rmt_driver_error, "RMT driver error.");
|
||||
ZH_ERROR_CHECK(rmt_tx_wait_all_done(handle->tx_channel[0], 10) == ESP_OK, ESP_FAIL, ++_stats.rmt_driver_error, "RMT driver error.");
|
||||
ZH_ERROR_CHECK(rmt_tx_wait_all_done(handle->tx_channel[1], 10) == ESP_OK, ESP_FAIL, ++_stats.rmt_driver_error, "RMT driver error.");
|
||||
return ESP_OK;
|
||||
}
|
||||
|
||||
static esp_err_t _zh_tm1637_send_data(zh_tm1637_handle_t *handle, uint8_t *symbols, uint8_t size)
|
||||
{
|
||||
uint8_t clk_symbols_counter = 0;
|
||||
uint8_t dio_symbols_counter = 0;
|
||||
uint8_t temp_symbols[size];
|
||||
memcpy(&temp_symbols, symbols, size);
|
||||
rmt_symbol_word_t clk_symbols[2 + (size * 9)];
|
||||
rmt_symbol_word_t dio_symbols[2 + (size * 9)];
|
||||
clk_symbols[clk_symbols_counter++] = (rmt_symbol_word_t){.duration0 = 2, .level0 = 1, .duration1 = 2, .level1 = 1}; // Start.
|
||||
dio_symbols[dio_symbols_counter++] = (rmt_symbol_word_t){.duration0 = 2, .level0 = 0, .duration1 = 3, .level1 = 0}; // Start.
|
||||
for (uint8_t i = 0; i < size; ++i)
|
||||
{
|
||||
for (uint8_t j = 0; j < 8; ++j)
|
||||
{
|
||||
clk_symbols[clk_symbols_counter++] = (rmt_symbol_word_t){.duration0 = 2, .level0 = 0, .duration1 = 2, .level1 = 1}; // Data.
|
||||
dio_symbols[dio_symbols_counter++] = (rmt_symbol_word_t){.duration0 = 2, .level0 = (temp_symbols[i] >> j) & 0x01, .duration1 = 2, .level1 = (temp_symbols[i] >> j) & 0x01}; // Data.
|
||||
}
|
||||
clk_symbols[clk_symbols_counter++] = (rmt_symbol_word_t){.duration0 = 2, .level0 = 0, .duration1 = 2, .level1 = 1}; // Ask.
|
||||
dio_symbols[dio_symbols_counter++] = (rmt_symbol_word_t){.duration0 = 2, .level0 = 0, .duration1 = 2, .level1 = 0}; // Ask.
|
||||
}
|
||||
clk_symbols[clk_symbols_counter] = (rmt_symbol_word_t){.duration0 = 2, .level0 = 0, .duration1 = 2, .level1 = 0}; // Stop.
|
||||
dio_symbols[dio_symbols_counter] = (rmt_symbol_word_t){.duration0 = 2, .level0 = 1, .duration1 = 2, .level1 = 0}; // Stop.
|
||||
rmt_transmit_config_t tx_transmit_config = {.loop_count = 0, .flags.eot_level = 1};
|
||||
rmt_sync_reset(handle->synchro);
|
||||
ZH_ERROR_CHECK(rmt_transmit(handle->tx_channel[0], handle->copy_encoder, &clk_symbols, sizeof(clk_symbols), &tx_transmit_config) == ESP_OK, ESP_FAIL, ++_stats.rmt_driver_error, "RMT driver error.");
|
||||
ZH_ERROR_CHECK(rmt_transmit(handle->tx_channel[1], handle->copy_encoder, &dio_symbols, sizeof(dio_symbols), &tx_transmit_config) == ESP_OK, ESP_FAIL, ++_stats.rmt_driver_error, "RMT driver error.");
|
||||
ZH_ERROR_CHECK(rmt_tx_wait_all_done(handle->tx_channel[0], 10) == ESP_OK, ESP_FAIL, ++_stats.rmt_driver_error, "RMT driver error.");
|
||||
ZH_ERROR_CHECK(rmt_tx_wait_all_done(handle->tx_channel[1], 10) == ESP_OK, ESP_FAIL, ++_stats.rmt_driver_error, "RMT driver error.");
|
||||
return ESP_OK;
|
||||
}
|
||||
Reference in new issue
Block a user