{"id":3182,"date":"2024-12-12T19:28:10","date_gmt":"2024-12-12T11:28:10","guid":{"rendered":"https:\/\/saludpcb.com\/zh\/?p=3182"},"modified":"2025-09-26T06:15:59","modified_gmt":"2025-09-25T22:15:59","slug":"esp32-uart-events-smarter-serial-communication","status":"publish","type":"post","link":"https:\/\/saludpcb.com\/zh\/esp32-uart-events-smarter-serial-communication\/","title":{"rendered":"\u63ed\u958b ESP32 UART Events \u7684\u96b1\u85cf\u6280\u80fd | \u8b93\u4f60\u7684\u901a\u4fe1\u667a\u6167\u5347\u7d1a"},"content":{"rendered":"\n<hr class=\"wp-block-separator alignwide has-text-color has-palette-color-1-color has-alpha-channel-opacity has-palette-color-1-background-color has-background is-style-wide\"\/>\n\n\n\n<p>\u5728\u5d4c\u5165\u5f0f\u958b\u767c\u4e2d\uff0c<strong>ESP32 UART Events<\/strong>\uff08\u901a\u7528\u7570\u6b65\u6536\u767c\u50b3\u8f38\u5668\u4e8b\u4ef6\uff09\u662f\u7121\u8655\u4e0d\u5728\u7684\u901a\u4fe1\u5de5\u5177\uff0c\u80fd\u8b93\u4f60\u7684 ESP32 \u8207\u5916\u90e8\u6a21\u7d44\u8f15\u9b06\u4e92\u52d5\u3002\u7136\u800c\uff0c\u4f60\u771f\u7684\u767c\u6398\u904e&nbsp;<strong>ESP32 UART Events<\/strong>&nbsp;\u7684\u5168\u90e8\u6f5b\u529b\u55ce\uff1f\u5728 ESP-IDF \u4e2d\uff0cUART \u7684\u4e8b\u4ef6\u9a45\u52d5\u6a5f\u5236\u860a\u85cf\u8457\u8a31\u591a\u5f37\u5927\u4e14\u300c\u96b1\u85cf\u300d\u7684\u6280\u80fd\uff0c\u4eca\u5929\u5c31\u5e36\u4f60\u4e00\u63a2\u7a76\u7adf\uff0c\u89e3\u9396\u9019\u4e9b\u79d8\u5bc6\uff0c\u4e26\u8b93\u4f60\u7684\u901a\u4fe1\u7cfb\u7d71\u66f4\u52a0\u667a\u80fd\uff01<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/saludpcb.com\/zh\/wp-content\/uploads\/2024\/12\/Revealing-the-Hidden-Skills-of-ESP32-UART-Events-Smarter-Serial-Communication-Made-Easy.jpg\" alt=\"ESP32 UART Events\" class=\"wp-image-3188\" title=\"\" srcset=\"https:\/\/saludpcb.com\/zh\/wp-content\/uploads\/2024\/12\/Revealing-the-Hidden-Skills-of-ESP32-UART-Events-Smarter-Serial-Communication-Made-Easy.jpg 1024w, https:\/\/saludpcb.com\/zh\/wp-content\/uploads\/2024\/12\/Revealing-the-Hidden-Skills-of-ESP32-UART-Events-Smarter-Serial-Communication-Made-Easy-768x768.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>\u5167\u5bb9<\/h2><nav><ul><li class=\"\"><a href=\"#introduction\">\u7c21\u4ecb<\/a><\/li><li class=\"\"><a href=\"#\u4ec0\u9ebc\u662f-touch-sensor\uff1f\">\u4ec0\u9ebc\u662f ESP32 UART Events\uff1f<\/a><\/li><li class=\"\"><a href=\"#\u70ba\u4ec0\u9ebc\u9700\u8981\u4e8b\u4ef6\u9a45\u52d5\u7684-uart\uff1f\">\u70ba\u4ec0\u9ebc\u9700\u8981\u4e8b\u4ef6\u9a45\u52d5\u7684 UART\uff1f<\/a><\/li><li class=\"\"><a href=\"#why-use-dma-and-i-2-s-with-adc-on-esp-32\">\u958b\u767c\u74b0\u5883<\/a><\/li><li class=\"\"><a href=\"#1-\u521d\u59cb\u5316-uart-\u914d\u7f6e\">\u521d\u59cb\u5316 UART \u914d\u7f6e<\/a><\/li><li class=\"\"><a href=\"#2-\u4e8b\u4ef6\u8655\u7406\u4efb\u52d9\">\u4e8b\u4ef6\u8655\u7406\u4efb\u52d9<\/a><\/li><li class=\"\"><a href=\"#3-\u4e3b\u7a0b\u5e8f\">\u4e3b\u7a0b\u5e8f<\/a><\/li><li class=\"\"><a href=\"#\u7c21\u55ae\u89e3\u91cb\uff1a\">\u7a0b\u5f0f\u78bc\u89e3\u8aaa<\/a><\/li><li class=\"\"><a href=\"#conclusion\">\u7d50\u8ad6<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"introduction\">\u7c21\u4ecb<\/h2>\n\n\n\n<p>\u5728\u5d4c\u5165\u5f0f\u958b\u767c\u4e2d\uff0c<strong>ESP32 UART Events<\/strong>&nbsp;\u63d0\u4f9b\u4e86\u4e00\u500b\u5f37\u5927\u7684\u4e8b\u4ef6\u9a45\u52d5\u6a5f\u5236\uff0c\u8b93\u4f60\u80fd\u5920\u9ad8\u6548\u8655\u7406\u4e32\u53e3\u901a\u4fe1\u4e2d\u7684\u5404\u7a2e\u60c5\u6cc1\u3002ESP32 \u4f5c\u70ba\u4e00\u6b3e\u9ad8\u6548\u80fd\u7684 SoC\uff0c\u5176\u5167\u5efa\u7684 UART \u529f\u80fd\u4e0d\u50c5\u80fd\u5920\u9032\u884c\u57fa\u672c\u7684\u6578\u64da\u50b3\u8f38\uff0c\u9084\u80fd\u5075\u6e2c\u5230\u591a\u7a2e\u4e8b\u4ef6\uff0c\u5982\u6578\u64da\u63a5\u6536\u3001\u7de9\u885d\u5340\u6eff\u3001\u6a21\u5f0f\u5339\u914d\u7b49\u3002\u9019\u4e9b\u4e8b\u4ef6\u7684\u8655\u7406\u53ef\u4ee5\u6975\u5927\u5730\u63d0\u5347\u901a\u4fe1\u7684\u7a69\u5b9a\u6027\u8207\u6548\u7387\u3002<\/p>\n\n\n\n<p>\u900f\u904e\u4e8b\u4ef6\u9a45\u52d5\u6a21\u5f0f\uff0c\u958b\u767c\u8005\u4e0d\u50c5\u53ef\u4ee5\u5373\u6642\u97ff\u61c9\u932f\u8aa4\u548c\u7570\u5e38\uff0c\u9084\u80fd\u6839\u64da\u6578\u64da\u6d41\u52d5\u9032\u884c\u66f4\u667a\u80fd\u7684\u64cd\u4f5c\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u6df1\u5165\u5256\u6790\u5982\u4f55\u5728 ESP32 \u4e2d\u5229\u7528 UART \u4e8b\u4ef6\uff0c\u63ed\u958b\u5176\u96b1\u85cf\u7684\u6280\u80fd\uff0c\u4e26\u63d0\u5347\u4f60\u7684\u901a\u4fe1\u7cfb\u7d71\u7684\u667a\u6167\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u4ec0\u9ebc\u662f-touch-sensor\uff1f\">\u4ec0\u9ebc\u662f ESP32 UART Events\uff1f<\/h2>\n\n\n\n<p>ESP32 \u7684 UART \u9a45\u52d5\u5167\u7f6e\u4e86\u591a\u7a2e\u4e8b\u4ef6\u985e\u578b\uff0c\u53ef\u4ee5\u5be6\u6642\u97ff\u61c9\u6578\u64da\u63a5\u6536\u3001\u7de9\u885d\u5340\u72c0\u614b\u8b8a\u5316\u751a\u81f3\u901a\u4fe1\u932f\u8aa4\u7b49\u60c5\u6cc1\u3002\u9019\u4e9b\u4e8b\u4ef6\u7531&nbsp;<code>uart_event_type_t<\/code>&nbsp;\u5b9a\u7fa9\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u65bc\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>UART_DATA<\/strong>: \u63a5\u6536\u5230\u6578\u64da\u3002<\/li>\n\n\n\n<li><strong>UART_BUFFER_FULL<\/strong>: RX \u7de9\u885d\u5340\u6eff\u3002<\/li>\n\n\n\n<li><strong>UART_FIFO_OVF<\/strong>: FIFO \u6ea2\u51fa\u3002<\/li>\n\n\n\n<li><strong>UART_BREAK<\/strong>: \u5075\u6e2c\u5230 Break \u4fe1\u865f\u3002<\/li>\n\n\n\n<li><strong>UART_PATTERN_DET<\/strong>: \u5075\u6e2c\u5230\u7279\u5b9a\u6a21\u5f0f\u3002<\/li>\n\n\n\n<li><strong>UART_FRAME_ERR<\/strong>&nbsp;\u548c&nbsp;<strong>UART_PARITY_ERR<\/strong>: \u8655\u7406\u901a\u4fe1\u932f\u8aa4\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u9019\u4e9b\u4e8b\u4ef6\u7684\u5f37\u5927\u4e4b\u8655\u5728\u65bc\uff1a\u5b83\u8b93 UART \u9a45\u52d5\u5177\u6709\u300c\u611f\u77e5\u80fd\u529b\u300d\uff0c\u80fd\u6839\u64da\u7576\u524d\u7684\u901a\u4fe1\u72c0\u614b\u505a\u51fa\u5feb\u901f\u53cd\u61c9\uff0c\u5f9e\u800c\u63d0\u9ad8\u53ef\u9760\u6027\u548c\u6548\u7387\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u70ba\u4ec0\u9ebc\u9700\u8981\u4e8b\u4ef6\u9a45\u52d5\u7684-uart\uff1f\">\u70ba\u4ec0\u9ebc\u9700\u8981\u4e8b\u4ef6\u9a45\u52d5\u7684 UART\uff1f<\/h2>\n\n\n\n<p>\u50b3\u7d71\u7684 UART \u901a\u4fe1\u662f\u963b\u585e\u5f0f\u7684\uff0c\u9700\u8981\u958b\u767c\u8005\u624b\u52d5\u8655\u7406\u6578\u64da\u7684\u6bcf\u4e00\u6b65\u3002\u4f46\u4e8b\u4ef6\u9a45\u52d5\u6a21\u5f0f\u80fd\u505a\u5230\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u975e\u963b\u585e\u64cd\u4f5c<\/strong>\uff1a\u907f\u514d CPU \u7b49\u5f85\u6578\u64da\u3002<\/li>\n\n\n\n<li><strong>\u5be6\u6642\u932f\u8aa4\u8655\u7406<\/strong>\uff1a\u5feb\u901f\u97ff\u61c9\u6ea2\u51fa\u3001\u932f\u8aa4\u7b49\u60c5\u6cc1\u3002<\/li>\n\n\n\n<li><strong>\u9ad8\u6548\u6a21\u5f0f\u6aa2\u6e2c<\/strong>\uff1a\u8f15\u9b06\u8655\u7406\u81ea\u5b9a\u7fa9\u901a\u4fe1\u5354\u8b70\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u5d4c\u5165\u5f0f\u958b\u767c\u4e2d\uff0c\u9019\u610f\u5473\u8457\u4f60\u7684\u7cfb\u7d71\u80fd\u300c\u611f\u77e5\u300d\u4e26\u300c\u9069\u61c9\u300d\u52d5\u614b\u8b8a\u5316\u7684\u901a\u4fe1\u9700\u6c42\uff0c\u5f9e\u800c\u66f4\u52a0\u7a69\u5b9a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"why-use-dma-and-i-2-s-with-adc-on-esp-32\">\u958b\u767c\u74b0\u5883<\/h2>\n\n\n\n<p>\u5728\u958b\u59cb\u7de8\u7a0b\u4e4b\u524d\uff0c\u8acb\u78ba\u4fdd\u5df2\u5b8c\u6210\u4ee5\u4e0b\u6e96\u5099\u5de5\u4f5c\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/saludpcb.com\/zh\/esp32-tutorial-how-to-create-an-esp32-project-with-vscode\/\">\u5b89\u88dd ESP-IDF \u958b\u767c\u74b0\u5883<\/a> (\u81f3\u5c11\u7248\u672c v4.4 \u6216\u66f4\u9ad8)\u3002<\/li>\n\n\n\n<li><a href=\"https:\/\/saludpcb.com\/zh\/esp32-devkit-module-pinout\/\">ESP32 \u958b\u767c\u677f<\/a>\u3002<\/li>\n\n\n\n<li><a href=\"https:\/\/saludpcb.com\/zh\/uart-with-esp32-uart-guide-send-and-receive\/\">\u53c3\u8003\u6587\u7ae0<\/a>\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-\u521d\u59cb\u5316-uart-\u914d\u7f6e\"><strong>\u521d\u59cb\u5316 UART \u914d\u7f6e<\/strong><\/h2>\n\n\n\n<p>\u9019\u88e1\u662f\u5b8c\u6574\u7684 ESP32 UART \u4e8b\u4ef6\u8655\u7406\u7684\u7bc4\u4f8b\u4ee3\u78bc\uff0c\u6db5\u84cb\u4e86\u521d\u59cb\u5316 UART\u3001\u8a2d\u7f6e\u4e8b\u4ef6\u968a\u5217\u3001\u5275\u5efa\u4e8b\u4ef6\u8655\u7406\u4efb\u52d9\u7b49\u6b65\u9a5f\uff0c\u5e6b\u52a9\u4f60\u5728 ESP32 \u4e0a\u5be6\u73fe UART \u4e8b\u4ef6\u9a45\u52d5\u8655\u7406\uff1a<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u914d\u7f6e UART \u4e26\u8a2d\u7f6e\u76f8\u95dc\u7684\u5f15\u8173\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">#include &lt;stdio.h&gt;\n#include &lt;string.h&gt;\n#include \"freertos\/FreeRTOS.h\"\n#include \"freertos\/task.h\"\n#include \"driver\/uart.h\"\n#include \"esp_log.h\"\n\nstatic const char *TAG = \"uart_events\";  \/\/ Define a tag for logging\n\n\/\/ Define UART port and buffer sizes\n#define EX_UART_NUM UART_NUM_0\n#define BUF_SIZE (1024)\n#define PATTERN_CHR_NUM (3)  \/\/ Define the number of consecutive characters to be detected for a pattern\nstatic QueueHandle_t uart0_queue;  \/\/ Queue to handle UART events\n\n\/\/ UART initialization function\nvoid uart_init()\n{\n    \/\/ Configure UART parameters\n    uart_config_t uart_config = {\n        .baud_rate = 115200,               \/\/ Set baud rate\n        .data_bits = UART_DATA_8_BITS,     \/\/ Set data bits to 8\n        .parity = UART_PARITY_DISABLE,     \/\/ Disable parity check\n        .stop_bits = UART_STOP_BITS_1,     \/\/ Set stop bits to 1\n        .flow_ctrl = UART_HW_FLOWCTRL_DISABLE,  \/\/ Disable hardware flow control\n        .source_clk = UART_SCLK_APB,       \/\/ Use APB clock\n    };\n\n    \/\/ Install UART driver and configure UART parameters\n    uart_driver_install(EX_UART_NUM, BUF_SIZE * 2, BUF_SIZE * 2, 20, &amp;uart0_queue, 0);\n    uart_param_config(EX_UART_NUM, &amp;uart_config);  \/\/ Apply UART configuration\n\n    \/\/ Set UART pins (use default UART0 pins)\n    uart_set_pin(EX_UART_NUM, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);\n\n    \/\/ Enable UART pattern detection: detect 3 consecutive '+' characters as a pattern\n    uart_enable_pattern_det_baud_intr(EX_UART_NUM, '+', PATTERN_CHR_NUM, 9, 0, 0);\n    \/\/ Reset the pattern queue to record up to 20 pattern positions\n    uart_pattern_queue_reset(EX_UART_NUM, 20);\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-\u4e8b\u4ef6\u8655\u7406\u4efb\u52d9\"><strong>\u4e8b\u4ef6\u8655\u7406\u4efb\u52d9<\/strong><\/h2>\n\n\n\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u5275\u5efa\u4e00\u500b\u5c08\u9580\u7684\u4efb\u52d9\u4f86\u8655\u7406\u5f9e\u968a\u5217\u63a5\u6536\u5230\u7684 UART \u4e8b\u4ef6\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">\/\/ UART event handling task\nstatic void uart_event_task(void *pvParameters)\n{\n    uart_event_t event;  \/\/ Variable to hold UART event\n    uint8_t* dtmp = (uint8_t*) malloc(BUF_SIZE);  \/\/ Allocate memory for receiving data\n\n    for(;;) {\n        \/\/ Wait for UART events\n        if(xQueueReceive(uart0_queue, (void * )&amp;event, portMAX_DELAY)) {\n            bzero(dtmp, BUF_SIZE);  \/\/ Clear the buffer\n\n            ESP_LOGI(TAG, \"uart[%d] event:\", EX_UART_NUM);  \/\/ Log the event\n\n            switch(event.type) {\n                case UART_DATA:\n                    \/\/ Handle UART data received event\n                    ESP_LOGI(TAG, \"[UART DATA]: %d bytes received\", event.size);\n                    uart_read_bytes(EX_UART_NUM, dtmp, event.size, portMAX_DELAY);  \/\/ Read received data\n                    uart_write_bytes(EX_UART_NUM, (const char*) dtmp, event.size);  \/\/ Echo the received data\n                    ESP_LOGI(TAG, \"[DATA EVT]: Data echoed back: %s\", dtmp);  \/\/ Log the echoed data\n                    break;\n\n                case UART_FIFO_OVF:\n                    \/\/ Handle UART FIFO overflow event\n                    ESP_LOGI(TAG, \"FIFO overflow detected\");\n                    uart_flush_input(EX_UART_NUM);  \/\/ Clear the input buffer\n                    break;\n\n                case UART_BUFFER_FULL:\n                    \/\/ Handle UART buffer full event\n                    ESP_LOGI(TAG, \"Ring buffer is full\");\n                    uart_flush_input(EX_UART_NUM);  \/\/ Clear the input buffer\n                    break;\n\n                case UART_PATTERN_DET:\n                    \/\/ Handle UART pattern detection event\n                    ESP_LOGI(TAG, \"Pattern detected\");\n                    uart_get_buffered_data_len(EX_UART_NUM, &amp;event.size);  \/\/ Get the buffered data length\n                    ESP_LOGI(TAG, \"Buffered data size: %d\", event.size);  \/\/ Log the size of buffered data\n                    break;\n\n                default:\n                    \/\/ Handle other unknown UART events\n                    ESP_LOGI(TAG, \"Unknown uart event type: %d\", event.type);\n                    break;\n            }\n        }\n    }\n\n    free(dtmp);  \/\/ Free the allocated memory\n    dtmp = NULL;  \/\/ Set pointer to NULL\n    vTaskDelete(NULL);  \/\/ Delete the task once done\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-\u4e3b\u7a0b\u5e8f\"><strong>\u4e3b\u7a0b\u5e8f<\/strong><\/h2>\n\n\n\n<p>\u5728\u4e3b\u7a0b\u5e8f\u4e2d\uff0c\u6211\u5011\u8abf\u7528 UART \u521d\u59cb\u5316\u51fd\u6578\u4e26\u555f\u52d5\u4e8b\u4ef6\u8655\u7406\u4efb\u52d9\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"cpp\" class=\"language-cpp\">void app_main(void)\n{\n    \/\/ Initialize UART\n    uart_init();\n\n    \/\/ Create UART event handling task\n    xTaskCreate(uart_event_task, \"uart_event_task\", 2048, NULL, 12, NULL);\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u7c21\u55ae\u89e3\u91cb\uff1a\">\u7a0b\u5f0f\u78bc\u89e3\u8aaa<\/h2>\n\n\n\n<p><strong>UART \u521d\u59cb\u5316 (<code>uart_init<\/code>)<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a2d\u7f6e UART \u9a45\u52d5\u7684\u53c3\u6578\uff0c\u5982\u6ce2\u7279\u7387\u3001\u6578\u64da\u4f4d\u3001\u505c\u6b62\u4f4d\u7b49\u3002<\/li>\n\n\n\n<li>\u555f\u7528\u6a21\u5f0f\u6aa2\u6e2c\u529f\u80fd\uff1a\u6aa2\u6e2c\u5230\u9023\u7e8c 3 \u500b&nbsp;<code>+<\/code>&nbsp;\u5b57\u7b26\u6642\u89f8\u767c&nbsp;<code>UART_PATTERN_DET<\/code>&nbsp;\u4e8b\u4ef6\u3002<\/li>\n\n\n\n<li>\u914d\u7f6e\u6a21\u5f0f\u968a\u5217\uff1a\u6700\u591a\u8a18\u9304 20 \u500b\u6aa2\u6e2c\u5230\u7684\u6a21\u5f0f\u4f4d\u7f6e\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u4e8b\u4ef6\u8655\u7406\u4efb\u52d9 (<code>uart_event_task<\/code>)<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>uart_driver_install<\/code><\/strong>: \u7528\u4f86\u5b89\u88dd UART \u9a45\u52d5\u4e26\u5275\u5efa\u4e8b\u4ef6\u968a\u5217\uff0c\u63a5\u6536\u4f86\u81ea UART \u7684\u4e8b\u4ef6\u3002<\/li>\n\n\n\n<li><strong><code>xQueueReceive<\/code><\/strong>: \u963b\u585e\u5730\u7b49\u5f85\u4e26\u63a5\u6536\u4e8b\u4ef6\uff0c\u9019\u88e1\u662f\u63a5\u6536\u6240\u6709\u4f86\u81ea UART \u7684\u4e8b\u4ef6\u4e26\u8655\u7406\u3002<\/li>\n\n\n\n<li><strong><code>uart_read_bytes<\/code><\/strong>: \u7528\u4f86\u8b80\u53d6\u63a5\u6536\u5230\u7684\u6578\u64da\u4e26\u8655\u7406\u3002<\/li>\n\n\n\n<li><strong><code>UART_DATA<\/code><\/strong>\uff1a\u8b80\u53d6\u6578\u64da\u4e26\u56de\u986f\uff0c\u540c\u6642\u6253\u5370\u63a5\u6536\u5230\u7684\u6578\u64da\u3002<\/li>\n\n\n\n<li><strong><code>UART_FIFO_OVF<\/code>&nbsp;\u548c&nbsp;<code>UART_BUFFER_FULL<\/code><\/strong>\uff1a\u8655\u7406\u7de9\u885d\u5340\u6ea2\u51fa\u7684\u60c5\u6cc1\uff0c\u907f\u514d\u4e1f\u5931\u6578\u64da\u3002<\/li>\n\n\n\n<li><strong><code>UART_PATTERN_DET<\/code><\/strong>\uff1a\u4e8b\u4ef6\u53ef\u4ee5\u7528\u4f86\u5075\u6e2c\u6307\u5b9a\u7684\u5b57\u7bc0\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5982\u679c\u4f60\u9700\u8981\u8655\u7406\u5176\u4ed6\u7684\u4e8b\u4ef6\u985e\u578b\u6216\u9032\u884c\u66f4\u7d30\u7dfb\u7684\u914d\u7f6e\uff0c\u53ef\u4ee5\u6839\u64da\u9700\u8981\u5728 <code>uart_event_task<\/code> \u4efb\u52d9\u5167\u9032\u884c\u8abf\u6574\u3002<\/p>\n\n\n\n<p><strong>\u65e5\u8a8c\u8a18\u9304 (<code>esp_log<\/code>)<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63d0\u4f9b\u5b8c\u6574\u7684 UART \u904b\u884c\u72c0\u614b\u8a18\u9304\uff0c\u5e6b\u52a9\u958b\u767c\u548c\u8abf\u8a66\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u70ba\u4ec0\u9ebc\u8981\u4f7f\u7528 UART \u6a21\u5f0f\u6aa2\u6e2c<\/strong> :<\/p>\n\n\n\n<p>\u6a21\u5f0f\u6aa2\u6e2c\u529f\u80fd\uff08<code>UART_PATTERN_DET<\/code>\uff09\u80fd\u5927\u5e45\u7c21\u5316\u7279\u5b9a\u5b57\u7b26\u5339\u914d\u7684\u5be6\u73fe\uff0c\u7279\u5225\u9069\u7528\u65bc\u4ee5\u4e0b\u5834\u666f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5354\u8b70\u89e3\u6790<\/strong>\uff1a\u6aa2\u6e2c\u5831\u6587\u7684\u8d77\u59cb\u6216\u7d50\u675f\u6a19\u8a8c\u3002<\/li>\n\n\n\n<li><strong>\u6578\u64da\u5206\u6bb5<\/strong>\uff1a\u6839\u64da\u7279\u5b9a\u6a21\u5f0f\u5c07\u6578\u64da\u6d41\u5206\u5272\u70ba\u591a\u500b\u6bb5\u3002<\/li>\n\n\n\n<li><strong>\u8a3a\u65b7\u548c\u8abf\u8a66<\/strong>\uff1a\u5be6\u6642\u76e3\u63a7\u6578\u64da\u6d41\u4e2d\u7684\u7279\u5b9a\u5b57\u7b26\u5e8f\u5217\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\">\u7d50\u8ad6<\/h2>\n\n\n\n<p><a href=\"https:\/\/docs.espressif.com\/projects\/esp-idf\/en\/latest\/esp32\/api-reference\/peripherals\/uart.html\" target=\"_blank\" rel=\"noopener\">ESP32 UART Events<\/a> \u7684\u4e8b\u4ef6\u9a45\u52d5\u6a5f\u5236\u70ba\u4e32\u53e3\u901a\u4fe1\u63d0\u4f9b\u4e86\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u8655\u7406\u65b9\u5f0f\u3002\u901a\u904e\u4e8b\u4ef6\u985e\u578b\u7684\u5206\u985e\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u61c9\u5c0d\u6578\u64da\u63a5\u6536\u3001\u6ea2\u51fa\u3001\u6a21\u5f0f\u6aa2\u6e2c\u7b49\u5834\u666f\u3002\u9019\u7a2e\u6a5f\u5236\u4e0d\u50c5\u6e1b\u8f15\u4e86 CPU \u7684\u8ca0\u64d4\uff0c\u9084\u63d0\u5347\u4e86\u901a\u4fe1\u7684\u53ef\u9760\u6027\u548c\u53ef\u64f4\u5c55\u6027\u3002\u5e0c\u671b\u6587\u7ae0\u80fd\u8b93\u4f60\u5c0d ESP32 UART Events \u6709\u66f4\u6df1\u5165\u7684\u4e86\u89e3\uff0c\u4e26\u5728\u4f60\u7684\u9805\u76ee\u4e2d\u767c\u63ee\u5176\u4f5c\u7528\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator alignwide has-text-color has-palette-color-1-color has-alpha-channel-opacity has-palette-color-1-background-color has-background is-style-wide\"\/>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5d4c\u5165\u5f0f\u958b\u767c\u4e2d\uff0cESP32 UART Events\uff08\u901a\u7528\u7570\u6b65\u6536\u767c\u50b3\u8f38\u5668\u4e8b\u4ef6\uff09\u662f\u7121\u8655\u4e0d\u5728\u7684\u901a\u4fe1\u5de5\u5177\uff0c\u80fd\u8b93\u4f60\u7684 E [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3189,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,53,83],"tags":[61,27,63,20,60,10,64,11,62],"class_list":["post-3182","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-module","category-esp32","category-featured","tag-bluetooth","tag-c","tag-firmware","tag-hardware","tag-iot","tag-mcu","tag-module","tag-tutorial","tag-wifi"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/posts\/3182","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/comments?post=3182"}],"version-history":[{"count":8,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/posts\/3182\/revisions"}],"predecessor-version":[{"id":3194,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/posts\/3182\/revisions\/3194"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/media\/3189"}],"wp:attachment":[{"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/media?parent=3182"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/categories?post=3182"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/saludpcb.com\/zh\/wp-json\/wp\/v2\/tags?post=3182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}