diff --git a/bspMCU/bsp_uart.c b/bspMCU/bsp_uart.c
index 28cf8b8..4a809e7 100644
--- a/bspMCU/bsp_uart.c
+++ b/bspMCU/bsp_uart.c
@@ -5,25 +5,29 @@ extern DMA_HandleTypeDef hdma_usart2_rx;
 
 #ifdef CONFIG_UART_IT_IDLEDMA
 static TUartTab g_ptUartTab[] = {
-    {&huart2, &hdma_usart2_rx},
+    {&hlpuart1, &hdma_usart2_rx},
     {&huart1, &hdma_usart1_rx},
     {&huart2, &hdma_usart2_rx},
+#ifdef IOC_100PIN
 	{&huart3, &hdma_usart3_rx},
 	{&huart4, &hdma_usart4_rx},
 	{&huart5, &hdma_usart5_rx},
 	{&huart6, &hdma_usart6_rx},
 	{&huart7, &hdma_usart7_rx}
+#endif
 };
 #else
 static TUartTab g_ptUartTab[] = {
-    {&huart2, NULL},
+    {&hlpuart1, NULL},
     {&huart1, NULL},
     {&huart2, NULL},
+#ifdef IOC_100PIN
 	{&huart3, NULL},
 	{&huart4, NULL},
 	{&huart5, NULL},
 	{&huart6, NULL},
 	{&huart7, NULL}
+#endif
 };
 #endif