LTE debug: print milliseconds spent

Author: peter-pycom

esp32/mods/modlte.c

@@ -195,16 +195,17 @@ static void lte_callback_handler(void* arg)
 static bool lte_push_at_command_ext(char *cmd_str, uint32_t timeout, const char *expected_rsp, size_t len) {
     lte_task_cmd_data_t cmd = { .timeout = timeout, .dataLen = len};
     memcpy(cmd.data, cmd_str, len);
+    uint32_t start = mp_hal_ticks_ms();
     if (lte_debug)
-        printf("[AT] %s\n", cmd_str);
+        printf("[AT] %u %s\n", start, cmd_str);
     lteppp_send_at_command(&cmd, &modlte_rsp);
     if ((expected_rsp == NULL) || (strstr(modlte_rsp.data, expected_rsp) != NULL)) {
         if (lte_debug)
-            printf("[AT-OK] %s\n", modlte_rsp.data);
+            printf("[AT-OK] +%u %s\n", mp_hal_ticks_ms()-start, modlte_rsp.data);
         return true;
     }
     if (lte_debug)
-        printf("[AT-FAIL] %s\n", modlte_rsp.data);
+        printf("[AT-FAIL] +%u %s\n", mp_hal_ticks_ms()-start, modlte_rsp.data);
     return false;
 }