diff --git a/vd960Loop/utilities/at32f421_freertos_demo/src/TaskLoop.c b/vd960Loop/utilities/at32f421_freertos_demo/src/TaskLoop.c
index e589c11..0addd46 100644
--- a/vd960Loop/utilities/at32f421_freertos_demo/src/TaskLoop.c
+++ b/vd960Loop/utilities/at32f421_freertos_demo/src/TaskLoop.c
@@ -24,12 +24,6 @@ uint32_t g_sys_freq   = 0;
 uint8_t  g_input_div   = 1;
 uint32_t g_safe_max_cnt = LC_HOLD_TIME;
 
-/*===========================================================================
- * 调试
- *===========================================================================*/
-uint8_t g_flag_output  = 0;
-uint8_t g_flag_output2 = 0;
-
 /*===========================================================================
  * 一阶 IIR 低通滤波器（对齐 DLD154V4B）
  * CAPVD_new = α·new_value + (1-α)·CAPVD_old, α = Flt_Reg/256
@@ -665,43 +659,4 @@ void led_indicator_task_function(void *pvParameters)
     }
 }
 
-/*===========================================================================
- * USART1 接收缓冲区 & 任务
- *===========================================================================*/
-char usart1_rx_buffer[USART1_RX_BUFFER_SIZE];
-volatile uint16_t usart1_rx_head = 0;
-volatile uint16_t usart1_rx_tail = 0;
-TaskHandle_t usart_task_handler = NULL;
 
-void usart_task_function(void *pvParameters)
-{
-    while (1) {
-        if (g_pkg_uart_1.flag) {
-            manage_dbn_ble_default(g_pkg_uart_1.pkg, g_pkg_uart_1.offset);
-            InitPkgUart(&g_pkg_uart_1);
-        }
-        uart_report_packet_loop_acs(0);
-
-#ifdef DEBUG
-        if (g_flag_output) {
-            g_flag_output = 0;
-            PRINT("xnC:%d,%d,%d,%d LPCNT:%d,%d,%d,%d CAPVD:%d,%d,%d,%d Origin:%d,%d,%d,%d VD:%d,%d,%d,%d\n",
-                  g_loop_states.loop_unit[0].xn_counter, g_loop_states.loop_unit[1].xn_counter,
-                  g_loop_states.loop_unit[2].xn_counter, g_loop_states.loop_unit[3].xn_counter,
-                  g_loop_states.loop_unit[0].loop_LPCNT, g_loop_states.loop_unit[1].loop_LPCNT,
-                  g_loop_states.loop_unit[2].loop_LPCNT, g_loop_states.loop_unit[3].loop_LPCNT,
-                  g_loop_states.loop_unit[0].loop_CAPVD, g_loop_states.loop_unit[1].loop_CAPVD,
-                  g_loop_states.loop_unit[2].loop_CAPVD, g_loop_states.loop_unit[3].loop_CAPVD,
-                  g_loop_states.loop_unit[0].loop_Origin, g_loop_states.loop_unit[1].loop_Origin,
-                  g_loop_states.loop_unit[2].loop_Origin, g_loop_states.loop_unit[3].loop_Origin,
-                  g_loop_states.loop_unit[0].loop_VD_FLAG, g_loop_states.loop_unit[1].loop_VD_FLAG,
-                  g_loop_states.loop_unit[2].loop_VD_FLAG, g_loop_states.loop_unit[3].loop_VD_FLAG);
-            g_loop_states.loop_unit[0].xn_counter = 0;
-            g_loop_states.loop_unit[1].xn_counter = 0;
-            g_loop_states.loop_unit[2].xn_counter = 0;
-            g_loop_states.loop_unit[3].xn_counter = 0;
-        }
-#endif
-        vTaskDelay(10);
-    }
-}