我用的是LPC2131+SJA1000+TJA1050,ARM c语言与Ｃ语言有所不同，我本以为是寄存器设置的问题，所以只发了初始化，我发送接收数据用的查询．
void init_can()
{ uint8 dat;
IO0CLR = CS; // 0x40800000;INT|CS;
write_can(0,0x01);//控制寄存器，进入复位模式,并且禁能所有中断源
write_can(31,0x48); //时钟分频器
write_can(4,0xaa); //验收代码ID 550
write_can(5,0x00); //验收屏蔽寄存器
write_can(6,0x01); //btr0
write_can(7,0x1c); //btr1
write_can(8,0xaa); //输出控制寄存器
delay(2);
write_can(0,0x06); //退出复位模式,并且使能发送中断和接收中断
dat= read_can(0);
while((dat&0x01)==1) ／／判断是否复位
{
write_can(0,0x06);
}
}
void Tx1(void) ／／发送子程序
{ uint8 i;
uint8 addr=10;
uint8 snd1[10]={0xaa,0x28,0x19,0x83,0x02,0x12,0x44,0x53,0x48,0x12};
write_can(0,0x06); //使能发送中断和接收中断，控制寄存器
for(i=0;i<10;i++)
{
write_can(addr,snd1);
addr++;
delay(100);
}
write_can(1,0x05);// 启动发送，置位发送请求位
delay(100);
}
uint8 receive() ／／接收数据，并发到串口上
{
uint8 i;
receive_data[0]=read_can(0x14);
receive_data[1]=read_can(0x15);
receive_data[2]=read_can(0x16);//data1
receive_data[3]=read_can(0x17);//data2
receive_data[4]=read_can(0x18);//data3
receive_data[5]=read_can(0x19);//data4
receive_data[6]=read_can(0x1a);//data5
receive_data[7]=read_can(0x1b);//data6
receive_data[8]=read_can(0x1c);//data7
receive_data[9]=read_can(0x1d);//data8
for(i=0;i<10;i++)
{
UART0_SendByte(receive_data); // 向串口发送字符串
delay(10);
}
write_can(1,0x04);//释放,接收缓冲器中载有信息内容被释放
return 1;
}
int main (void)
{ init_can();
delay(10);
while(1)
{
Tx1();
delay(1000000);
receive();
}
return 0;
}
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