修改枚举类名称，添加发送错误帧给app

app/drivers/sertrf/sertrf.c

@@ -211,7 +211,8 @@ void task_thread(void* arg)
             static size_t end_time = 0;
             if(start_time - end_time > 2000)
             {
-                switch(get_protocol_status())
+                sertrf.fc_protocol_status = get_protocol_status();
+                switch(sertrf.fc_protocol_status)
                 {
                     case PROTOCOL_STATUS_OK:
                         // rgb_color_change(1, sertrf.device.last_color);
@@ -664,4 +665,11 @@ int stmisp_recv(void* data, uint16_t len, int timeout)
 int stmisp_get_length(void)
 {
     return embedded_device_get_rx_length(&sertrf.device);
+}
+
+int app_send_error_code(uint8_t error_code)
+{
+    sertrf.mode_status.sertrf_error_code = error_code;
+
+    return resend_send_data(&sertrf.resend_device, RESEND_CMD_ERROR_CODE, &sertrf.mode_status.sertrf_error_code, sizeof(sertrf_mode_status_t), 1000);
 }