关键词: ECAN, 总线协议, 总线通信, 自检程序

Abstract: By referring to ECAN 2.0 protocol and the message transmission process relating to the transmit state machine and filter state machine, the core logic of ECAN module is designed. By embedding ECAN in DSP2F0X though the APB bus, ECAN ASIC is designed and corresponding communication system is developed. The paper describes the hardware structure, the connection structure and the self-test program of the system. The system is described by the verilog language and developed using tcbn55lpwc technology. The system is integrated in the Synopsys/syn14.12 environment, the transmission rate reaching 1 Mb/s. The communication system improves communication efficiency and reliability with more functions.

Key words: ECAN, Bus protocol, Bus communication, Self-test