How to use S32K148 IIC Read an external EEPROM

[Kevin-Roman]

Hi everyone. 

     I have a question,When I'm debugging S32K148 IIC read an external EEPROM.The following problems occur:

      It's going to get stuck at this point,Please see the engineer help me I want to know why

Thanks

WangXiao

[PetrS · Accepted solution]

Hi,

so does it mean the RXEMPTY bit is never cleared?
Do you see any bytes (clocks/data) on the bus for this read sequence?
Also I guess you should change condition for while loop, this way shifting temp you can lost data value.
You can have e.g.

for(i=0;i<len;i++)
{
   do
   {
       temp = LPI2C0->MRDR;
       wdtIntFeed();
   } while(0U != (temp&0x4000U));
   data[i] = temp;
}

BR, Petr

[Kevin-Roman]

Very grateful to youThe problem has been solved.