RCM6700, read serial Port C, serCgetc always gets 0x000

Rabbit
1

Hi all and Thanks in advance

I’m using RCM6700 with dev board
I try to read 6 bytes from serial Port C with a ext. circuit MAX485.
I connected the RO of MAX485 to PE3 of RCM6700, and it is checked that the RO have the serial data.

It always returns 0x0000 from serCgetc.
I have tried to connect PE3 to GND or 3.3V. It still returns 0x0000.

Is there any idea which goes wrong??

Many Many Thanks

My sample problem as

#define CINBUFSIZE 63
#define COUTBUFSIZE 15

void main(void)
{
char cmd[10];
int i,j,ch,ChRy;

serCopen(9600L);
serCrdFlush();
i = 0;
while (1)
{

  ChRy = serCpeek();
  if (ChRy != -1)
  {
     ch = serCgetc();
     cmd[i] = ch;
  	++i;
  }
  if (i == 10)
  {
  	for (j=0;j < 10; j++)
     {
        printf(" %04x:",cmd[j]);
     }
     i = 0;
     printf("

");
}
}
}

2

Solved I missed these settings

#define SERF_TXPORT PEDR
#define SERF_RXPORT PEDR