说明：  这是一个用单片机控制CAN总线芯片SJA1000传输的C51程序,89C51单片机,sja1000.h是内部寄存器的定义,main.c是传输主程序
(MCU control chip SJA1000 CAN transmission C51 procedures, 89C51 microcontroller, sja1000.h internal register is the definition of transmission main program main.c)