Data transmission method and vehicle domain controller chip

Abstract

The invention discloses a data transmission method and a vehicle domain controller chip, a routing engine module is arranged in a vehicle domain controller, and the data transmission method comprises the following steps: responding to a data packet received from a physical bus, and sending the data packet to the routing engine module by using a target peripheral controller corresponding to the physical bus; using a routing engine module to determine whether the data packet needs to be verified according to the first field in the data packet; under the condition that the data packet needs to be verified, verifying the data packet by using a security algorithm engine; and under the condition that the data packet passes the verification and the identification information of the data packet accords with the target filtering rule, sending the data packet according to the target routing table by utilizing the routing engine module. Therefore, the data packet is filtered and routed through the routing engine module, and the data packet is verified through the security algorithm engine, so that the security and efficiency of data packet transmission are improved while the processor load of the vehicle domain controller is reduced.