加入C板样例的bsp_can和CAN_receive函数库

Core/Src/bsp_can.c

@@ -0,0 +1,24 @@
+#include "bsp_can.h"
+#include "main.h"
+
+
+extern CAN_HandleTypeDef hcan1;
+
+void can_filter_init(void)
+{
+
+    CAN_FilterTypeDef can_filter_st;
+    can_filter_st.FilterActivation = ENABLE;
+    can_filter_st.FilterMode = CAN_FILTERMODE_IDMASK;
+    can_filter_st.FilterScale = CAN_FILTERSCALE_32BIT;
+    can_filter_st.FilterIdHigh = 0x0000;
+    can_filter_st.FilterIdLow = 0x0000;
+    can_filter_st.FilterMaskIdHigh = 0x0000;
+    can_filter_st.FilterMaskIdLow = 0x0000;
+    can_filter_st.FilterBank = 0;
+    can_filter_st.FilterFIFOAssignment = CAN_RX_FIFO0;
+    HAL_CAN_ConfigFilter(&hcan1, &can_filter_st);
+    HAL_CAN_Start(&hcan1);
+    HAL_CAN_ActivateNotification(&hcan1, CAN_IT_RX_FIFO0_MSG_PENDING);
+
+}