Hi, everyone,
I use the function "tcgetattr" to access /dev/ttyS1, the messages is above:
*SetupSerial 1: Input/output error*
**
When I change to access /dev/ttyS0, there is no error that will be
displayed.
Could anyone tell me some tips about that? Thank you~
PS:
My platform is Davinci DM6446. and my linux kernel version is Linux version
2.6.10_mvl401-davinci_evm.
My programme is mainly above :
* *
* int fd;
int nread;
int i;
char buff[512];
char *dev = "/dev/ttyS1";
fd = OpenDev(dev);
if (fd>0)
set_speed(fd,115200);
else
{
printf("Can't Open Serial Port!\n");
return 0;
} *
**
*{*
*...*
* struct termios options;
if ( tcgetattr( fd,&options) != 0) {
perror("SetupSerial 1");
return(FALSE);
}*
***...*
*}*
--
Best Regards! zhangshaofeng
@Xi'an JiaoTong University
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