fix: dma

main.c

@@ -79,14 +79,12 @@ int main() {
 
   netif_add(&g_netif, &ipaddr, &netmask, &gw, NULL, &ethernetif_init,
             &ethernet_input);
-
+  //   netif_set_link_callback(&g_netif, link_status_callback);
   netif_set_default(&g_netif);
   netif_set_up(&g_netif);
 
   dhcp_start(&g_netif);
 
-  ethernetif_init(&g_netif);
-
   uint32_t last_led_toggle = 0;
   uint32_t last_send_time = 0;
   int led_state = 0;