修改nmea_sample.c编码为utf-8，在RT-Thread Studio可以正常显示中文注释

examples/nmea_sample.c

@@ -21,7 +21,7 @@
 
 #include "nmea/nmea.h"
 
-/* 串口接收消息结构*/
+/* 涓插彛鎺ユ敹娑堟伅缁撴瀯*/
 struct rx_msg
 {
     rt_device_t dev;
@@ -31,7 +31,7 @@ struct rx_msg
 static rt_device_t serial;
 static struct rt_messagequeue rx_mq;
 
-/* 接收数据回调函数 */
+/* 鎺ユ敹鏁版嵁鍥炶皟鍑芥暟 */
 static rt_err_t uart_input(rt_device_t dev, rt_size_t size)
 {
     struct rx_msg msg;
@@ -42,17 +42,17 @@ static rt_err_t uart_input(rt_device_t dev, rt_size_t size)
     result = rt_mq_send(&rx_mq, &msg, sizeof(msg));
     if (result == -RT_EFULL)
     {
-        /* 消息队列满 */
-        rt_kprintf("message queue full！\n");
+        /* 娑堟伅闃熷垪婊� */
+        rt_kprintf("message queue full锛乗n");
     }
     return result;
 }
 
 //#define __GPS_DEBUG
 /**
- * @brief  trace 在解码时输出捕获的GPS语句
- * @param  str: 要输出的字符串，str_size:数据长度
- * @retval 无
+ * @brief  trace 鍦ㄨВ鐮佹椂杈撳嚭鎹曡幏鐨凣PS璇�彞
+ * @param  str: 瑕佽緭鍑虹殑瀛楃�涓诧紝str_size:鏁版嵁闀垮害
+ * @retval 鏃�
  */
 static void trace(const char *str, int str_size)
 {
@@ -63,9 +63,9 @@ static void trace(const char *str, int str_size)
 }
 
 /**
- * @brief  error 在解码出错时输出提示消息
- * @param  str: 要输出的字符串，str_size:数据长度
- * @retval 无
+ * @brief  error 鍦ㄨВ鐮佸嚭閿欐椂杈撳嚭鎻愮ず娑堟伅
+ * @param  str: 瑕佽緭鍑虹殑瀛楃�涓诧紝str_size:鏁版嵁闀垮害
+ * @retval 鏃�
  */
 static void error(const char *str, int str_size)
 {
@@ -82,13 +82,13 @@ static void nmea_thread_entry(void *parameter)
     rt_uint32_t rx_length;
     static char rx_buffer[RT_SERIAL_RB_BUFSZ + 1];
 
-    char ss[128];   //打印字符串buffer
+    char ss[128];   //鎵撳嵃瀛楃�涓瞓uffer
 
-    double deg_lat; //转换成[degree].[degree]格式的纬度
-    double deg_lon; //转换成[degree].[degree]格式的经度
+    double deg_lat; //杞�崲鎴怺degree].[degree]鏍煎紡鐨勭含搴�
+    double deg_lon; //杞�崲鎴怺degree].[degree]鏍煎紡鐨勭粡搴�
 
-    nmeaINFO info;          //GPS解码后得到的信息
-    nmeaPARSER parser;      //解码时使用的数据结构
+    nmeaINFO info;          //GPS瑙ｇ爜鍚庡緱鍒扮殑淇℃伅
+    nmeaPARSER parser;      //瑙ｇ爜鏃朵娇鐢ㄧ殑鏁版嵁缁撴瀯
 
     nmea_property()->trace_func = &trace;
     nmea_property()->error_func = &error;
@@ -99,23 +99,23 @@ static void nmea_thread_entry(void *parameter)
     while (1)
     {
         rt_memset(&msg, 0, sizeof(msg));
-        /* 从消息队列中读取消息*/
+        /* 浠庢秷鎭�槦鍒椾腑璇诲彇娑堟伅*/
         result = rt_mq_recv(&rx_mq, &msg, sizeof(msg), RT_WAITING_FOREVER);
         if (result == RT_EOK)
         {
-            /* 从串口读取数据*/
+            /* 浠庝覆鍙ｈ�鍙栨暟鎹�*/
             rx_length = rt_device_read(msg.dev, 0, rx_buffer, msg.size);
             rx_buffer[rx_length] = '\0';
 
             nmea_parse(&parser, (const char *) &rx_buffer[0], rx_length, &info);
 
-            //info.lat lon中的格式为[degree][min].[sec/60]，使用以下函数转换成[degree].[degree]格式
+            //info.lat lon涓�殑鏍煎紡涓篬degree][min].[sec/60]锛屼娇鐢ㄤ互涓嬪嚱鏁拌浆鎹㈡垚[degree].[degree]鏍煎紡
             deg_lat = nmea_ndeg2degree(info.lat);
             deg_lon = nmea_ndeg2degree(info.lon);
 
             LOG_D("utc_time:%d-%02d-%02d,%d:%d:%d ", info.utc.year + 1900, info.utc.mon + 1, info.utc.day,
                     info.utc.hour, info.utc.min, info.utc.sec);
-            //因为LOG_D不支持浮点数，所以此处使用snprintf进行打印，再用LOG_D输出
+            //鍥犱负LOG_D涓嶆敮鎸佹诞鐐规暟锛屾墍浠ユ�澶勪娇鐢╯nprintf杩涜�鎵撳嵃锛屽啀鐢↙OG_D杈撳嚭
             snprintf(ss, 128, "wd:%f,jd:%f", deg_lat, deg_lon);
             LOG_D(ss);
             snprintf(ss, 128, "high:%f m", info.elv);
@@ -139,20 +139,20 @@ static int nmea_thread_init(int argc, char *argv[])
     static char msg_pool[256];
     static char up_msg_pool[256];
     struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
-    /* 查找串口设备 */
+    /* 鏌ユ壘涓插彛璁惧� */
     serial = rt_device_find(NMEALIB_UART_PORT);
-    /* 初始化消息队列 */
+    /* 鍒濆�鍖栨秷鎭�槦鍒� */
     rt_mq_init(&rx_mq, "rx_mq", msg_pool, sizeof(struct rx_msg), sizeof(msg_pool), RT_IPC_FLAG_FIFO);
-    //修改波特率为9600
+    //淇�敼娉㈢壒鐜囦负9600
     config.baud_rate = NMEALIB_UART_BAUDRATE;
     rt_device_control(serial, RT_DEVICE_CTRL_CONFIG, &config);
 
-    rt_device_open(serial, RT_DEVICE_FLAG_DMA_RX); /* 以 DMA 接收及轮询发送方式打开串口设备 */
-    rt_device_set_rx_indicate(serial, uart_input); /* 设置接收回调函数 */
+    rt_device_open(serial, RT_DEVICE_FLAG_DMA_RX); /* 浠� DMA 鎺ユ敹鍙婅疆璇㈠彂閫佹柟寮忔墦寮€涓插彛璁惧� */
+    rt_device_set_rx_indicate(serial, uart_input); /* 璁剧疆鎺ユ敹鍥炶皟鍑芥暟 */
 
-    rt_thread_t thread = rt_thread_create("nmea", nmea_thread_entry, RT_NULL, 4096, 25, 10); /* 创建 serial 线程 */
+    rt_thread_t thread = rt_thread_create("nmea", nmea_thread_entry, RT_NULL, 4096, 25, 10); /* 鍒涘缓 serial 绾跨▼ */
 
-    /* 创建成功则启动线程 */
+    /* 鍒涘缓鎴愬姛鍒欏惎鍔ㄧ嚎绋� */
     if (thread != RT_NULL)
     {
         rt_thread_startup(thread);
@@ -164,6 +164,6 @@ static int nmea_thread_init(int argc, char *argv[])
 
     return ret;
 }
-/* 导出到 msh 命令列表中 */
+/* 瀵煎嚭鍒� msh 鍛戒护鍒楄〃涓� */
 MSH_CMD_EXPORT(nmea_thread_init, nmea thread init);
 INIT_APP_EXPORT(nmea_thread_init);