基于51单片机的SJA1000收发程序

#include "reg51.h" #include "uart.h" #include "string.h" #include "sja1000.h" sbit KEY=P2^5; void main(void) { unsigned char init,state,num,i=0; UART_Init(); if(SJA_Interface_Test()) { UART_Send_String("\r\nSJA TO CPU Right!\r\n"); } else { UART_Send_String("\r\nSJA TO CPU Error!\r\n"); } init=SJA_Init(); if(init==0) { UART_Send_String("\r\nSJA Init OK!\r\n"); } else { UART_Send_String("\r\nSJA Init Error!\r\n"); UART_Send_Byte(init); } while(1) { if(KEY==0) { DelayMs(10); if(KEY==0) { CAN_Send_Str("ILoveY\r\n"); Display(num); if(num++==14) num=0; } DelayMs(200); } SJA_BCANAdr = REG_STATUS; state=*SJA_BCANAdr; if((state&0x40)==0x40) { UART_Send_String("\r\nSJA Error count overflow!!\r\n"); SJA_Init(); } if((state&0x20)==0x20) UART_Send_String("SJA1000 CAN BUS is transmiting!\r\n"); } }