{"id":930,"date":"2025-08-12T10:23:09","date_gmt":"2025-08-12T02:23:09","guid":{"rendered":"https:\/\/aimc.skyate.com\/?p=930"},"modified":"2025-08-12T10:29:15","modified_gmt":"2025-08-12T02:29:15","slug":"%e3%80%90aimc%e5%ba%93%e3%80%91%e3%80%90esp32%e3%80%91-driver_ringbuffer-%e5%ba%93%e6%8a%80%e6%9c%af%e6%96%87%e6%a1%a3","status":"publish","type":"post","link":"https:\/\/aimc.skyate.com\/index.php\/2025\/08\/12\/%e3%80%90aimc%e5%ba%93%e3%80%91%e3%80%90esp32%e3%80%91-driver_ringbuffer-%e5%ba%93%e6%8a%80%e6%9c%af%e6%96%87%e6%a1%a3\/","title":{"rendered":"\u3010AIMC\u5e93\u3011\u3010ESP32\u3011 driver_RingBuffer \u5e93\u6280\u672f\u6587\u6863"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1. \u5e93\u603b\u4f53\u529f\u80fd\u4e0e\u76ee\u7684<\/h2>\n\n\n\n<p>RingBuffer \u5e93\u662f\u4e00\u4e2a\u57fa\u4e8e FreeRTOS \u7684\u73af\u5f62\u7f13\u51b2\u533a\u5b9e\u73b0\uff0c\u4e3b\u8981\u7528\u4e8e\u9ad8\u6548\u5904\u7406\u6570\u636e\u6d41\u7684\u5b58\u50a8\u4e0e\u8bfb\u53d6\u3002\u5176\u6838\u5fc3\u76ee\u7684\u662f\u89e3\u51b3\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\u7684\u6570\u636e\u7f13\u51b2\u95ee\u9898\uff0c\u7279\u522b\u9002\u7528\u4e8e BMD101 \u7b49\u9ad8\u9891\u6570\u636e\u91c7\u96c6\u573a\u666f\uff08\u6bcf\u79d2 512\u00d78+12 \u5b57\u8282\u6570\u636e\u6d41\uff09\u3002<\/p>\n\n\n\n<p>\u73af\u5f62\u7f13\u51b2\u533a\uff08Ring Buffer\uff09\u901a\u8fc7\u5faa\u73af\u5229\u7528\u56fa\u5b9a\u5927\u5c0f\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u5b9e\u73b0\u4e86\u6570\u636e\u7684\u9ad8\u6548\u8bfb\u5199\u64cd\u4f5c\uff0c\u907f\u514d\u4e86\u7ebf\u6027\u7f13\u51b2\u533a\u9891\u7e41\u79fb\u52a8\u6570\u636e\u7684\u6027\u80fd\u5f00\u9500\u3002\u8be5\u5e93\u5177\u5907\u4ee5\u4e0b\u7279\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7ebf\u7a0b\u5b89\u5168\uff1a\u901a\u8fc7 FreeRTOS \u4e92\u65a5\u9501\u5b9e\u73b0\u591a\u7ebf\u7a0b\u8bbf\u95ee\u4fdd\u62a4<\/li>\n\n\n\n<li>\u9ad8\u6548\u64cd\u4f5c\uff1a\u4f7f\u7528 memcpy \u5b9e\u73b0\u6279\u91cf\u6570\u636e\u590d\u5236\uff0c\u4f18\u5316\u5199\u5165\u6027\u80fd<\/li>\n\n\n\n<li>\u8fb9\u754c\u5904\u7406\uff1a\u81ea\u52a8\u5904\u7406\u8de8\u7f13\u51b2\u533a\u8fb9\u754c\u7684\u6570\u636e\u8bfb\u5199<\/li>\n\n\n\n<li>\u5185\u5b58\u4f18\u5316\uff1a\u4f7f\u7528 SPIRAM \u5b58\u50a8\uff08\u9002\u7528\u4e8e ESP32 \u7b49\u5e73\u53f0\uff09<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u5e93\u63a5\u53e3\u51fd\u6570\u529f\u80fd<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 \u521d\u59cb\u5316\u51fd\u6570<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">int RingBuf_Init(ringbuf_HandleTypeDef* rb);\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u529f\u80fd\uff1a\u521d\u59cb\u5316\u73af\u5f62\u7f13\u51b2\u533a\u53ca\u76f8\u5173\u8d44\u6e90<\/li>\n\n\n\n<li>\u53c2\u6570\uff1a<code>rb<\/code>&nbsp;&#8211; \u7f13\u51b2\u533a\u53e5\u67c4\u6307\u9488<\/li>\n\n\n\n<li>\u8fd4\u56de\u503c\uff1a0 \u8868\u793a\u6210\u529f\uff0c-1 \u8868\u793a\u5931\u8d25<\/li>\n\n\n\n<li>\u8bf4\u660e\uff1a\u5185\u90e8\u4f1a\u521d\u59cb\u5316\u8bfb\u5199\u6307\u9488\u3001\u521b\u5efa\u4e92\u65a5\u9501\u5e76\u5206\u914d\u7f13\u51b2\u533a\u5185\u5b58\uff08\u5927\u5c0f\u4e3a RINGBUF_MAX_SIZE\uff09<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 \u53ef\u7528\u7a7a\u95f4\u67e5\u8be2\u51fd\u6570<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">size_t RingBuf_GetAvailable(ringbuf_HandleTypeDef* rb);\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u529f\u80fd\uff1a\u8ba1\u7b97\u7f13\u51b2\u533a\u5f53\u524d\u53ef\u5199\u5165\u7684\u5b57\u8282\u6570<\/li>\n\n\n\n<li>\u53c2\u6570\uff1a<code>rb<\/code>&nbsp;&#8211; \u7f13\u51b2\u533a\u53e5\u67c4\u6307\u9488<\/li>\n\n\n\n<li>\u8fd4\u56de\u503c\uff1a\u53ef\u7528\u7a7a\u95f4\u5927\u5c0f\uff08\u5b57\u8282\u6570\uff09<\/li>\n\n\n\n<li>\u8bf4\u660e\uff1a\u4e3a\u907f\u514d\u8bfb\u5199\u6307\u9488\u91cd\u53e0\u5bfc\u81f4\u7684\u7a7a\u6ee1\u72b6\u6001\u8bef\u5224\uff0c\u4f1a\u9884\u7559 1 \u5b57\u8282\u7a7a\u95f4<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2.3 \u6570\u636e\u5199\u5165\u51fd\u6570<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">size_t RingBuf_Write(ringbuf_HandleTypeDef* rb, const uint8_t* data, size_t len);\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u529f\u80fd\uff1a\u5c06\u6570\u636e\u5199\u5165\u73af\u5f62\u7f13\u51b2\u533a<\/li>\n\n\n\n<li>\u53c2\u6570\uff1a\n<ul class=\"wp-block-list\">\n<li><code>rb<\/code>&nbsp;&#8211; \u7f13\u51b2\u533a\u53e5\u67c4\u6307\u9488<\/li>\n\n\n\n<li><code>data<\/code>&nbsp;&#8211; \u5f85\u5199\u5165\u6570\u636e\u7684\u6307\u9488<\/li>\n\n\n\n<li><code>len<\/code>&nbsp;&#8211; \u5f85\u5199\u5165\u6570\u636e\u7684\u957f\u5ea6<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u8fd4\u56de\u503c\uff1a\u5b9e\u9645\u5199\u5165\u7684\u5b57\u8282\u6570<\/li>\n\n\n\n<li>\u8bf4\u660e\uff1a\n<ul class=\"wp-block-list\">\n<li>\u652f\u6301\u8de8\u7f13\u51b2\u533a\u8fb9\u754c\u7684\u6570\u636e\u5199\u5165<\/li>\n\n\n\n<li>\u4f1a\u81ea\u52a8\u5904\u7406\u5199\u5165\u957f\u5ea6\u4e0e\u53ef\u7528\u7a7a\u95f4\u7684\u5339\u914d\uff08\u4e0d\u4f1a\u5199\u5165\u8d85\u8fc7\u53ef\u7528\u7a7a\u95f4\u7684\u6570\u636e\uff09<\/li>\n\n\n\n<li>\u5185\u90e8\u4f7f\u7528 memcpy \u5b9e\u73b0\u9ad8\u6548\u6570\u636e\u590d\u5236<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2.4 \u5355\u5b57\u8282\u8bfb\u53d6\u51fd\u6570<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">int RingBuf_ReadByte(ringbuf_HandleTypeDef* rb, uint8_t* data);\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u529f\u80fd\uff1a\u4ece\u73af\u5f62\u7f13\u51b2\u533a\u8bfb\u53d6\u4e00\u4e2a\u5b57\u8282<\/li>\n\n\n\n<li>\u53c2\u6570\uff1a\n<ul class=\"wp-block-list\">\n<li><code>rb<\/code>&nbsp;&#8211; \u7f13\u51b2\u533a\u53e5\u67c4\u6307\u9488<\/li>\n\n\n\n<li><code>data<\/code>&nbsp;&#8211; \u5b58\u50a8\u8bfb\u53d6\u6570\u636e\u7684\u6307\u9488<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u8fd4\u56de\u503c\uff1a0 \u8868\u793a\u6210\u529f\uff0c-1 \u8868\u793a\u7f13\u51b2\u533a\u4e3a\u7a7a<\/li>\n\n\n\n<li>\u8bf4\u660e\uff1a\u6bcf\u6b21\u8bfb\u53d6\u540e\u4f1a\u81ea\u52a8\u79fb\u52a8\u8bfb\u6307\u9488\uff0c\u9002\u7528\u4e8e\u5b57\u8282\u6d41\u89e3\u6790\u573a\u666f<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2.5 \u7f13\u51b2\u533a\u6e05\u7a7a\u51fd\u6570<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">void RingBuf_Clear(ringbuf_HandleTypeDef* rb);\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u529f\u80fd\uff1a\u6e05\u7a7a\u73af\u5f62\u7f13\u51b2\u533a<\/li>\n\n\n\n<li>\u53c2\u6570\uff1a<code>rb<\/code>&nbsp;&#8211; \u7f13\u51b2\u533a\u53e5\u67c4\u6307\u9488<\/li>\n\n\n\n<li>\u8bf4\u660e\uff1a\u901a\u8fc7\u91cd\u7f6e\u8bfb\u5199\u6307\u9488\u5b9e\u73b0\u7f13\u51b2\u533a\u6e05\u7a7a\uff0c\u4e0d\u4f1a\u5b9e\u9645\u6e05\u9664\u5185\u5b58\u6570\u636e<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u4ee3\u7801\u8bb2\u89e3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">3.1 \u6570\u636e\u7ed3\u6784\u8bbe\u8ba1<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">typedef struct {\n    uint8_t *buffer;         \/\/ \u7f13\u51b2\u533a\u5b58\u50a8\u533a\n    size_t write_idx;        \/\/ \u5199\u5165\u6307\u9488\n    size_t read_idx;         \/\/ \u8bfb\u53d6\u6307\u9488\n    SemaphoreHandle_t mutex; \/\/ \u4e92\u65a5\u9501\uff08\u4fdd\u62a4\u591a\u7ebf\u7a0b\u8bfb\u5199\uff09\n} ringbuf_HandleTypeDef;\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>buffer<\/code>\uff1a\u6307\u5411\u5b9e\u9645\u5b58\u50a8\u6570\u636e\u7684\u5185\u5b58\u533a\u57df<\/li>\n\n\n\n<li><code>write_idx<\/code>\uff1a\u4e0b\u4e00\u4e2a\u5f85\u5199\u5165\u4f4d\u7f6e\u7684\u7d22\u5f15<\/li>\n\n\n\n<li><code>read_idx<\/code>\uff1a\u4e0b\u4e00\u4e2a\u5f85\u8bfb\u53d6\u4f4d\u7f6e\u7684\u7d22\u5f15<\/li>\n\n\n\n<li><code>mutex<\/code>\uff1aFreeRTOS \u4e92\u65a5\u9501\uff0c\u786e\u4fdd\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\u7684\u64cd\u4f5c\u5b89\u5168\u6027<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 \u7f13\u51b2\u533a\u5927\u5c0f\u5b9a\u4e49<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#define RINGBUF_MAX_SIZE 4096  \/\/ \u9002\u914dBMD101\u9ad8\u9891\u6570\u636e\u6d41\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u7f13\u51b2\u533a\u7684\u6700\u5927\u5bb9\u91cf\u4e3a 4096 \u5b57\u8282\uff0c\u53ef\u6839\u636e\u5b9e\u9645\u9700\u6c42\u8c03\u6574<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.3 \u521d\u59cb\u5316\u5b9e\u73b0\u7ec6\u8282<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">int RingBuf_Init(ringbuf_HandleTypeDef* rb) {\n    if (rb == NULL) return -1;\n    \n    rb->write_idx = 0;\n    rb->read_idx = 0;\n    rb->mutex = xSemaphoreCreateMutex();  \/\/ \u521b\u5efa\u4e92\u65a5\u9501\n    if (rb->mutex == NULL) return -1;\n    \/\/ \u5206\u914dSPIRAM\u5185\u5b58\uff08\u9002\u7528\u4e8eESP32\u5e73\u53f0\uff09\n    rb->buffer = (uint8_t *)heap_caps_malloc(RINGBUF_MAX_SIZE, MALLOC_CAP_SPIRAM);\n    \n    memset(rb->buffer, 0, RINGBUF_MAX_SIZE);\n    return 0;\n}\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u521d\u59cb\u5316\u65f6\u4f1a\u91cd\u7f6e\u8bfb\u5199\u6307\u9488\u3001\u521b\u5efa\u4e92\u65a5\u9501\u5e76\u5206\u914d\u5185\u5b58<\/li>\n\n\n\n<li>\u4f7f\u7528&nbsp;<code>heap_caps_malloc<\/code>&nbsp;\u5206\u914d SPIRAM \u5185\u5b58\uff0c\u9002\u5408\u8d44\u6e90\u53d7\u9650\u7684\u5d4c\u5165\u5f0f\u5e73\u53f0<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.4 \u53ef\u7528\u7a7a\u95f4\u8ba1\u7b97\u903b\u8f91<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">size_t RingBuf_GetAvailable(ringbuf_HandleTypeDef* rb) {\n    if (rb == NULL) return 0;\n    \n    if (rb->write_idx >= rb->read_idx) {\n        return RINGBUF_MAX_SIZE - (rb->write_idx - rb->read_idx) - 1;\n    } else {\n        return rb->read_idx - rb->write_idx - 1;\n    }\n}\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f53\u5199\u6307\u9488\u5728 read \u6307\u9488\u4e4b\u540e\u65f6\uff1a\u53ef\u7528\u7a7a\u95f4 = \u7f13\u51b2\u533a\u603b\u5927\u5c0f &#8211; \u5df2\u7528\u7a7a\u95f4 &#8211; 1\uff08\u9884\u7559\uff09<\/li>\n\n\n\n<li>\u5f53\u5199\u6307\u9488\u5728 read \u6307\u9488\u4e4b\u524d\u65f6\uff1a\u53ef\u7528\u7a7a\u95f4 = \u8bfb\u6307\u9488\u4f4d\u7f6e &#8211; \u5199\u6307\u9488\u4f4d\u7f6e &#8211; 1\uff08\u9884\u7559\uff09<\/li>\n\n\n\n<li>\u9884\u7559 1 \u5b57\u8282\u662f\u4e3a\u4e86\u533a\u5206 &#8220;\u7f13\u51b2\u533a\u6ee1&#8221; \u548c &#8220;\u7f13\u51b2\u533a\u7a7a&#8221; \u4e24\u79cd\u72b6\u6001<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.5 \u6570\u636e\u5199\u5165\u5b9e\u73b0<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">size_t RingBuf_Write(ringbuf_HandleTypeDef* rb, const uint8_t* data, size_t len) {\n    \/\/ \u53c2\u6570\u68c0\u67e5\u4e0e\u4e92\u65a5\u9501\u83b7\u53d6\n    if (rb == NULL || data == NULL || len == 0) return 0;\n    if (xSemaphoreTake(rb->mutex, portMAX_DELAY) != pdTRUE) return 0;\n    \n    \/\/ \u8ba1\u7b97\u5b9e\u9645\u53ef\u5199\u5165\u957f\u5ea6\n    size_t available = RingBuf_GetAvailable(rb);\n    size_t write_len = (len > available) ? available : len;\n    if (write_len == 0) {\n        xSemaphoreGive(rb->mutex);\n        return 0;\n    }\n    \n    \/\/ \u5904\u7406\u8de8\u8fb9\u754c\u5199\u5165\n    size_t first_segment_len = RINGBUF_MAX_SIZE - rb->write_idx;\n    if (first_segment_len >= write_len) {\n        \/\/ \u65e0\u9700\u8de8\u8fb9\u754c\n        memcpy(rb->buffer + rb->write_idx, data, write_len);\n        rb->write_idx += write_len;\n    } else {\n        \/\/ \u8de8\u8fb9\u754c\u5199\u5165\uff1a\u5148\u5199\u5230\u7f13\u51b2\u533a\u672b\u5c3e\uff0c\u518d\u5199\u5230\u5f00\u5934\n        memcpy(rb->buffer + rb->write_idx, data, first_segment_len);\n        memcpy(rb->buffer, data + first_segment_len, write_len - first_segment_len);\n        rb->write_idx = write_len - first_segment_len;\n    }\n    \n    xSemaphoreGive(rb->mutex);\n    return write_len;\n}\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5199\u5165\u524d\u4f1a\u5148\u83b7\u53d6\u4e92\u65a5\u9501\uff0c\u786e\u4fdd\u7ebf\u7a0b\u5b89\u5168<\/li>\n\n\n\n<li>\u81ea\u52a8\u8c03\u6574\u5b9e\u9645\u5199\u5165\u957f\u5ea6\uff0c\u4e0d\u4f1a\u8d85\u8fc7\u53ef\u7528\u7a7a\u95f4<\/li>\n\n\n\n<li>\u5904\u7406\u4e24\u79cd\u5199\u5165\u573a\u666f\uff1a\u65e0\u9700\u8de8\u8fb9\u754c\u548c\u9700\u8981\u8de8\u8fb9\u754c\uff0c\u4fdd\u8bc1\u6570\u636e\u8fde\u7eed\u6027<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.6 \u7ebf\u7a0b\u5b89\u5168\u673a\u5236<\/h3>\n\n\n\n<p>\u6240\u6709\u6d89\u53ca\u8bfb\u5199\u6307\u9488\u4fee\u6539\u7684\u64cd\u4f5c\u90fd\u901a\u8fc7\u4e92\u65a5\u9501\uff08<code>mutex<\/code>\uff09\u8fdb\u884c\u4fdd\u62a4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528&nbsp;<code>xSemaphoreTake<\/code>&nbsp;\u83b7\u53d6\u9501<\/li>\n\n\n\n<li>\u4f7f\u7528&nbsp;<code>xSemaphoreGive<\/code>&nbsp;\u91ca\u653e\u9501<\/li>\n\n\n\n<li>\u91c7\u7528&nbsp;<code>portMAX_DELAY<\/code>&nbsp;\u7b49\u5f85\u65f6\u95f4\uff0c\u786e\u4fdd\u6700\u7ec8\u80fd\u83b7\u53d6\u5230\u9501\uff08\u907f\u514d\u6c38\u4e45\u963b\u585e\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u79cd\u673a\u5236\u4fdd\u8bc1\u4e86\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\uff0c\u5bf9\u7f13\u51b2\u533a\u7684\u8bfb\u5199\u64cd\u4f5c\u4e0d\u4f1a\u76f8\u4e92\u5e72\u6270\uff0c\u907f\u514d\u4e86\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. \u5e93\u603b\u4f53\u529f\u80fd\u4e0e\u76ee\u7684 RingBuffer \u5e93\u662f\u4e00\u4e2a\u57fa\u4e8e FreeRTOS \u7684\u73af\u5f62\u7f13\u51b2\u533a\u5b9e\u73b0\uff0c\u4e3b\u8981\u7528\u4e8e\u9ad8\u6548\u5904 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37,5],"tags":[92,46],"class_list":["post-930","post","type-post","status-publish","format-standard","hentry","category-esp32_arduino","category-ai_hardware","tag-aimc","tag-esp32"],"_links":{"self":[{"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/posts\/930","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/comments?post=930"}],"version-history":[{"count":2,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/posts\/930\/revisions"}],"predecessor-version":[{"id":932,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/posts\/930\/revisions\/932"}],"wp:attachment":[{"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/media?parent=930"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/categories?post=930"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/tags?post=930"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}