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Altera_Forum
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20 years ago

UART IO

Hi: How could I open/set flags to an Altera UART device for being used in a non-blocking manner, e.g. a call to fgetc() or fread() returns inmediately if no characters are available? Thank...
Altera_Forum's avatar
Altera_Forum
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20 years ago

Hi VLorenzo,

> For opening the device I use fopen().

I rarely, if ever, use streams ... so I've never have the need for fdopen() ... but you might give it a try:
int fd;
FILE *fs;
fd = open("/dev/uart1", O_RDWR | O_NONBLOCK | O_NOCTTY);
if (fd != -1) fs = dopen(fd, "rw");
And please let us know how/if it works.

Regards,

--Scott