摘要
USB总线与CAN总线的接口设计,由于CY7C68013A单片机支持USB2.0协议,采用其固件程序处理上位机驱动程序的请求,完成与上位机的USB通讯,并控制SJA1000,完成CAN报文帧的收发。SJA1000的地址、数据总线与CY7C68013A的I/O口相连,利用软件通过I/O口模拟SJA1000的通讯时序。
The interface design of USB and CAN is based on CY7C68013A MCU supporting USB2.0 protocol. Its firmware deals with the request of PC, and completes the USB communication with PC. The firmware controls the SJA1000 and complete the sending and receiving of CAN frame. The AD bus of SJA1000 connected with the I/O of CY7C68013A. And the timing of SJA1000 is simulated from I/O by soft ware.
出处
《兵工自动化》
2007年第8期83-84,共2页
Ordnance Industry Automation
