用2块同样的 demo board(型号是9s08dz60) 分别作master,slave，用LIN2.0，使用freescale提供的LINKit作通信。做的事最简单的功能。master 发送 Msg_17给slave。 但是 发送/接受都不成功。请各位LIn的大虾帮着看下阿，最简单的Lin的通信了。这是master的程序： void main( void )
{
int n,m;
int i,nodeId;
unsigned char statusDisplay;
LINStatusType ret;
unsigned char idList[16] = {0x10, 0x11, 0x12, 0x13, 0x18, 0x19, 0x1A, 0x1B, 0x20, 0x21, 0x22, 0x23, 0x28, 0x29, 0x2A, 0x2B};
char activeList[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
char messageList = 16;
Time = 0; /* disable COP */
SOPT1 = 0x20; /* disable COP, enable stop mode */ /* Configure MCG to produce a 16MHz bus clock from a 8MHz external crystal via PLL */
/* Select High Range, High Gain, Bus divided by 1, Oscillator, ERCLK enabled */
MCGC2 = 0x36;
while (!MCGSC_OSCINIT);
/* Select External Clock as bus clock source, Reference divided by 128, Reference = external */
MCGC1 = 0xB8;
/* wait for Reference Status bit to update */
while (!MCGSC_IREFST); /* Wait for clock status bits to update */
while (MCGSC_CLKST != 0b10);
/* NOW IN FBE MODE */ MCGC2 = 0x3E;
/* NOW IN BLPE MODE */ /* Change RDIV for PLL reference */
MCGC1 = 0x98;
/* Select the VCO divider and PLL */
MCGC3 = 0x48; /* Wait for PLL status to update */
while (!MCGSC_PLLST);
/* Clear LP bit */
MCGC2 = 0x36;
/* NOW IN PBE MODE */
/* Wait for LOCK bit to set */
while (!MCGSC_LOCK);
/* Enter PEE mode */
MCGC1 = 0x18;
/* Wait for Clock status to indicate PLL output */
while (MCGSC_CLKST != 0b11);
/* Initialize driver */
LIN_Init();
PTADD_PTADD7 = 1; //enable LIN transceiver TJA1020
PTAD_PTAD7 = 1;
PTCDD_PTCDD5 = 1;
PTBDD_PTBDD3 = 1;
/* Initialise RTC */
InitDelay(); /* Enable interrupt */
asm cli;
/* Check/Enable LIN interface */
LINActive(); // disable LINActive()
PeriphInit();
//initial led1,led2,sw1,sw2
while(1)
{
/* Update message */
ret = LIN_PutMsg( 0x17,MsgSent) ;
ret = LIN_RequestMsg(0x17) ;
LED1=~LED1;
do {
ret = LIN_DriverStatus();
}
while(ret!=LIN_STATUS_RUN);
ret = LIN_MsgStatus(0x17);
if(ret==LIN_OK) {
for(n=0;n<5;n++)
{
LED2=~LED2;
Delay(500);
}
}
}
}
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