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Altera_Forum's avatar
Altera_Forum
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22 years ago

uart nonblocking

How can I do nonblocking io with uart I have a singlethread enviroment and need nonblocking io for uart I tried the following code, but it does not work correctly int fd; fd = ...
Altera_Forum's avatar
Altera_Forum
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22 years ago

The filedescriptor is used in the "read" function and the read function returns

immediatly with res=0, if no characters are available. I don't want to use

the reduced drivers. I found no example and no register description in the

altera documentation. I' have read the "linux serial programming howto",

but there must be some differences in programming with NIOSII ???.