diff --git a/test/linux/tj30_test/tj30_test.c b/test/linux/tj30_test/tj30_test.c
index 06f53ef..f76f84a 100644
--- a/test/linux/tj30_test/tj30_test.c
+++ b/test/linux/tj30_test/tj30_test.c
@@ -250,9 +250,10 @@ static void show_check(void)
     char ch;
     bool is_first = true;
     ec_error.is_showed = true;
+    printf(CSI_START "?25l"); // 隐藏光标
     for (;;)
     {
-        // 按任意键退出
+        // 按空格，q, x 键退出
         int result = read(STDIN_FILENO, &ch, 1);
         if (result == 1 && (ch == ' ' || ch == 'q' || ch == 'x'))
         {
@@ -282,7 +283,7 @@ static void show_check(void)
                "---+----+\n");
         for (int i = 1; i <= ec_slavecount; i++)
         {
-            char  buff[512];
+            char  buff[64 * 1024];
             char *p = buff;
             // show output / input
             p += sprintf(p, "%2d | Out/In|", i);
@@ -422,6 +423,7 @@ static void show_check(void)
         fflush(stdout);
         osal_usleep(50000);
     }
+    printf(CSI_START "?25h"); // 显示光标
 }
 
 void tj30_test(char *ifname)
@@ -466,7 +468,7 @@ void tj30_test(char *ifname)
         int32_t sn = ecEepromGetSN(cnt);
         logn(F_B_BLUE,
              "Slave:%d Name:%s ID: " CSI_START B_B_WHITE "%u/0x%08x" CSI_END CSI_START F_B_BLUE
-             " SN:" CSI_START B_B_WHITE "%d" CSI_END CSI_START F_B_BLUE
+             " SN:" CSI_START B_B_WHITE "%d" CSI_END                         CSI_START F_B_BLUE
              " Output size:%3dbits Input size:%3dbits\n",
              cnt, ec_slave[cnt].name, ec_slave[cnt].eep_id, ec_slave[cnt].eep_id, sn,
              ec_slave[cnt].Obits, ec_slave[cnt].Ibits);