diff --git a/src/system/uart_trans/inc/.gitkeep b/src/system/uart_trans/inc/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/src/system/uart_trans/src/trans.cpp b/src/system/uart_trans/src/trans.cpp
deleted file mode 100644
index 91ba24b..0000000
--- a/src/system/uart_trans/src/trans.cpp
+++ /dev/null
@@ -1,180 +0,0 @@
-#include "myBase.h"
-#include "myLog.h"
-#include "myComm.h"
-#include "unistd.h"
-
-enum{
-    FTU,
-    RK,
-    END
-};
-
-LOCAL stru_uart_para g_uart_para[END] = 
-{
-    [FTU] = {
-        .device = "/dev/ttyUSB0",
-        .baudrate = 115200,
-        .data_bits = 8,
-        .stop_bits = 1,
-        .parity = 'N',
-    },
-    [RK] = {
-        .device = "/dev/ttyUSB1",
-        .baudrate = 115200,
-        .data_bits = 8,
-        .stop_bits = 1,
-        .parity = 'N',
-    },
-};
-
-LOCAL struct 
-{
-    CommType type;
-    CommDebugShow debug_show;
-    void *para;
-    int id;
-    int socket_fd;
-    pthread_t thread_id;
-    void* (*start_cb)(void *arg);
-}g_channel_para[END] = 
-{
-    [FTU] = {
-        .type = CommType::uart,
-        .debug_show = CommDebugShow::off,
-        .para = &g_uart_para[FTU],
-        .id = -1,
-        .socket_fd = -1,
-    },
-    [RK] = {
-        .type = CommType::uart,
-        .debug_show = CommDebugShow::off,
-        .para = &g_uart_para[RK],
-        .id = -1,
-        .socket_fd = -1,
-    },
-};
-
-LOCAL void recv_callback(int id, int socket_fd, const uint8_t *p_rx, uint16_t rx_len)
-{
-    int send_id = -1;
-    int send_socket_fd = -1;
-
-    if(id == g_channel_para[FTU].id)
-    {
-        send_id = g_channel_para[RK].id;
-        send_socket_fd = g_channel_para[RK].socket_fd;
-    }
-    else if(id == g_channel_para[RK].id)
-    {
-        send_id = g_channel_para[FTU].id;
-        send_socket_fd = g_channel_para[FTU].socket_fd;
-    }
-    else
-    {
-        MY_LOG_E("recv_callback: unknown id %d", id);
-        return;
-    }
-
-
-    comm_send(send_id, send_socket_fd, p_rx, rx_len);
-}
-
-LOCAL void state_callback(int id, int socket_fd, CommState state)
-{
-    // printf("state_callback: id %d, socket_fd %d, state %d", id, socket_fd, state);
-
-    for(int i = 0; i < END; i++)
-    {
-        if(g_channel_para[i].id == id)
-        {
-            if(state == CommState::connected)
-            {
-                g_channel_para[i].socket_fd = socket_fd;
-            }
-            else
-            {
-                g_channel_para[i].socket_fd = -1;
-            }
-        }
-    }
-}
-
-
-LOCAL int com_channel_create()
-{
-    for(int i = 0; i < END; i++)
-    {
-        if((g_channel_para[i].id = comm_create(g_channel_para[i].type, g_channel_para[i].debug_show, g_channel_para[i].para)) < 0)
-        {
-            MY_LOG_E("create channel %d failed", i);
-            return -1;
-        }
-    
-        if(0 != comm_recv_register(g_channel_para[i].id, recv_callback))
-        {
-            MY_LOG_E("register recv callback for channel %d failed", i);
-            return -1;
-        }
-
-        if(0 != comm_state_register(g_channel_para[i].id, state_callback))
-        {
-            MY_LOG_E("register state callback for channel %d failed", i);
-            return -1;
-        }
-    }
-
-    return 0;
-}
-
-LOCAL void *com_start(void *arg)
-{
-    if(NULL == arg)
-    {
-        MY_LOG_E("arg is NULL");
-        return NULL;
-    }
-
-    int id = *(int *)arg;
-
-    if(0 != comm_connect(id))
-    {
-        MY_LOG_E("comm_connect failed, channel id %d", id);
-        return NULL;
-    }
-
-    return NULL;
-}
-
-LOCAL void com_channel_start()
-{
-    for(int i = 0; i < END; i++)
-    {
-        if(g_channel_para[i].id >= 0)
-        {
-            if(0 != pthread_create(&g_channel_para[i].thread_id, NULL, com_start, &g_channel_para[i].id))
-            {
-                MY_LOG_E("pthread_create failed, channel id %d", i);
-                return;
-            }
-        }
-    }
-}
-
-
-int main()
-{
-    if(0 != com_channel_create())
-    {
-        MY_LOG_E("create channel failed");
-        return -1;
-    }
-    
-    com_channel_start();
-
-    while(1)
-    {
-        usleep(1000000);
-    }
-
-    return 0;
-}
\ No newline at end of file