CAN总线编程时为什么在执行发送报文命令后需要一段时间的延时？如下所示：
if((n&0x40) == 0x40) /*设置判断远程桢*/
{
ah = n&0x0f;
REG_TxBufinf = 0x80 + ah;
REG_TxBuffer1 = 0x00;
REG_TxBuffer2 = 0x00;
REG_TxBuffer3 = 0x11;
REG_TxBuffer4 = 0x08;
REG_TxBuffer5 = counter;
counter++;
REG_TxBuffer6 = 0x02;
REG_TxBuffer7 = 0x03;
REG_TxBuffer8 = 0x04;
REG_TxBuffer9 = 0x05;
REG_TxBuffer10 = 0x06;
REG_TxBuffer11 = 0x07;
REG_TxBuffer12 = 0x08;
REG_COMMAND = 0x01;//报文发送命令
delay1(290);//延时时间
为什么一定要有延时时间? |
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