diff --git a/Src/CanSerialPortFrame.c b/Src/CanSerialPortFrame.c
index 9763707..3622017 100644
--- a/Src/CanSerialPortFrame.c
+++ b/Src/CanSerialPortFrame.c
@@ -383,14 +383,14 @@ vCanSerialPortFrameReceive(tCanSerialPortFrameFlagchip *env, uint8_t idFilter, u
     return vSerialPortFrameReceiveQueue(env, data, size, timeout, env->rxDataQueue[idFilter]);
 }
 
-static uint16_t
-vCanSerialPortFrameReceiveSniffer(tCanSerialPortFrameFlagchip *env, uint8_t idFilter, uint8_t *data, uint16_t size,
-                                  uint32_t timeout) {
+//static uint16_t
+//vCanSerialPortFrameReceiveSniffer(tCanSerialPortFrameFlagchip *env, uint8_t idFilter, uint8_t *data, uint16_t size,
+//                                  uint32_t timeout) {
 
-    return env->rxDataSnifferQueue
-           ? vSerialPortFrameReceiveQueue(env, data, size, timeout, env->rxDataSnifferQueue[idFilter])
-           : 0;
-}
+//    return env->rxDataSnifferQueue
+//           ? vSerialPortFrameReceiveQueue(env, data, size, timeout, env->rxDataSnifferQueue[idFilter])
+//           : 0;
+//}
 
 uint16_t vCanSerialPortFrameTransmit(tCanSerialPortFrameFlagchip *env, uint8_t *data, uint16_t size, uint32_t timeout) {