  PC11    ------> CAN1_TX
  PC12    ------> CAN1_RX 

ʱã
Fsys=152Mhz

CANã
CAN1Mbps
CANʱѡsysclk 1Ƶ
NSJW=1tqNTS1=121tqNTS2=30tqCANʱ1Ƶ

CAN1ͨжϽзͺͽգ
ͱ׼֡ID=0x111=0/0x11/0x22...0xFF16
֡RxData