CPU工程更新：

	1.优化了中断处理函数（Abort_C_Handler）中的ULOG异常丢失的问题;

amt630hv160-freertos-beta/lib/ulog/ulog.c

@@ -178,8 +178,19 @@ size_t ulog_ultoa(char *s, unsigned long int n)
 
 static void output_unlock(void)
 {
+	uint32_t cpsr = 0;
+	uint32_t mode;
+
+	asm("mrs %0, CPSR" : : "r"(cpsr));
+	mode = cpsr & 0x1f;
+
+	/* is in abort or undefine mode */
+	if (mode == 0x17 || mode == 0x1b)
+	{
+
+	}
     /* is in thread context */
-    if (interrupt_get_nest() == 0)
+    else if (interrupt_get_nest() == 0)
     {
         xSemaphoreGive(ulog.output_locker);
     }
@@ -193,8 +204,19 @@ static void output_unlock(void)
 
 static void output_lock(void)
 {
+	uint32_t cpsr = 0;
+	uint32_t mode;
+
+	asm("mrs %0, CPSR" : : "r"(cpsr));
+	mode = cpsr & 0x1f;
+
+	/* is in abort or undefine mode */
+	if (mode == 0x17 || mode == 0x1b)
+	{
+
+	}
     /* is in thread context */
-    if (interrupt_get_nest() == 0)
+    else if (interrupt_get_nest() == 0)
     {
         xSemaphoreTake(ulog.output_locker, portMAX_DELAY);
     }
@@ -254,9 +276,20 @@ WEAK size_t ulog_formater(char *log_buf, uint32_t level, const char *tag, int ne
 #ifdef ULOG_TIME_USING_TIMESTAMP
         SystemTime_t tm;
 
+#ifdef RTC_SUPPORT
 		iGetLocalTime(&tm);
         snprintf(log_buf + log_len, ULOG_LINE_BUF_SIZE - log_len, "%02d-%02d %02d:%02d:%02d", tm.tm_mon + 1,
                 tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
+#else
+        tm.tm_year = YearDat;
+        tm.tm_mon = MonthDat;
+        tm.tm_mday = DayDat;
+        tm.tm_hour = HourDat;
+        tm.tm_min = MinuteDat;
+        tm.tm_sec = SecondDat;
+        snprintf(log_buf + log_len, ULOG_LINE_BUF_SIZE - log_len, "%02d-%02d %02d:%02d:%02d", tm.tm_mon,
+                tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
+#endif
 
 #else
         static size_t tick_len = 0;
@@ -410,6 +443,8 @@ static void do_output(uint32_t level, const char *tag, int is_raw, const char *l
 #ifdef ULOG_USING_ASYNC_OUTPUT
     rbb_blk_t log_blk;
     ulog_frame_t log_frame;
+    uint32_t cpsr = 0;
+	uint32_t mode;
 
     /* allocate log frame */
     log_blk = rbb_blk_alloc(ulog.async_rbb, ULOG_ALIGN(sizeof(struct ulog_frame) + log_len, ULOG_ALIGN_SIZE));
@@ -427,8 +462,13 @@ static void do_output(uint32_t level, const char *tag, int is_raw, const char *l
         memcpy(log_blk->buf + sizeof(struct ulog_frame), log_buf, log_len);
         /* put the block */
         rbb_blk_put(log_blk);
+        asm("mrs %0, CPSR" : : "r"(cpsr));
+		mode = cpsr & 0x1f;
+		/* is in abort or undefine mode */
+		if (mode == 0x17 || mode == 0x1b)
+			;
         /* send a notice */
-		if (interrupt_get_nest() == 0)
+		else if (interrupt_get_nest() == 0)
 			xQueueSend(ulog.async_notice, NULL, 0);
 		else
 			xQueueSendFromISR(ulog.async_notice, NULL, 0);