diff --git a/Inc/CanSerialPortFrame.h b/Inc/CanSerialPortFrame.h
index 329ba94..3b3acc3 100644
--- a/Inc/CanSerialPortFrame.h
+++ b/Inc/CanSerialPortFrame.h
@@ -39,6 +39,7 @@ typedef struct {
 } can_rx_message_type;
 
 
+#define COUNT_TX_HANDLER  3
 #define COUNT_QUEUE 4
 
 typedef struct {
@@ -54,7 +55,7 @@ typedef struct {
 
     uint8_t CAN_INDEX;
 
-    osMessageQueueId_t txDataQueueCan;
+    osMessageQueueId_t txDataQueueCan[COUNT_TX_HANDLER];
 
     uint32_t id;
     uint32_t id1;
@@ -75,7 +76,7 @@ typedef struct {
     osMessageQueueId_t rxDataQueue[COUNT_QUEUE];
     osMessageQueueId_t rxDataSnifferQueue[COUNT_QUEUE];
 
-    osMutexId_t access[2];
+    osMutexId_t access[COUNT_TX_HANDLER];
 
     DMA_InitType dmaInitCfg_RX;
     DMA_ChannelCfgType chnCfg_RX;
diff --git a/Src/CanSerialPortFrame.c b/Src/CanSerialPortFrame.c
index 653e13a..8328501 100644
--- a/Src/CanSerialPortFrame.c
+++ b/Src/CanSerialPortFrame.c
@@ -266,9 +266,10 @@ bool vCanSerialPortFrameDMAInit(
 
             env->reInitOne = true;
 
-            env->txDataQueueCan = osMessageQueueNew(1, 1, NULL);
-            env->access[0] = osMutexNew(NULL);
-            env->access[1] = osMutexNew(NULL);
+            for (uint8_t i = 0; i < COUNT_TX_HANDLER; ++i) {
+                env->access[i] = osMutexNew(NULL);
+                env->txDataQueueCan[i] = osMessageQueueNew(1, 1, NULL);
+            }
 
             vCanSerialPortFrameInitStructure(env, 10, 0);
 
@@ -424,9 +425,11 @@ bool vCanSerialPortFrameMbInit(
         if (!env->reInitOne) {
             env->reInitOne = true;
 
-            env->access[0] = osMutexNew(NULL);
-            env->access[1] = osMutexNew(NULL);
-            env->txDataQueueCan = osMessageQueueNew(1, 1, NULL);
+            for (uint8_t i = 0; i < COUNT_TX_HANDLER; ++i) {
+                env->access[i] = osMutexNew(NULL);
+                env->txDataQueueCan[i] = osMessageQueueNew(1, 1, NULL);
+            }
+
 
             vCanSerialPortFrameInitStructure(env, 10, 0);
 
@@ -721,7 +724,7 @@ FLEXCAN_ErrorType TransmitCan(tCanSerialPortFrameFlagchip *env, FLEXCAN_TxMsgTyp
         if (tTxMsg->bWaitTxCompleted) {
 
             uint8_t u8TxHandler;
-            if (osMessageQueueGet(env->txDataQueueCan, &u8TxHandler, NULL, tTxMsg->bWaitTxCompleted) == osOK) {
+            if (osMessageQueueGet(env->txDataQueueCan[tTxMsg->u8TxHandler], &u8TxHandler, NULL, tTxMsg->bWaitTxCompleted) == osOK) {
                 tRetval = FLEXCAN_ERROR_OK;
             } else {
                 tRetval = FLEXCAN_ERROR_TIMEOUT;