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Altera_Forum's avatar
Altera_Forum
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20 years ago

UART polling

Hello to everybody, I'm developing an application made by several task. I'd like to receive data from uart in asynchronous way. So I has a main loop that continuously execute some task and...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

try to open uart twice, so you get

one filedescriptor for non blocking input (O_NONBLOCK)

and one for blocking output.

better than blocking your system on output is to

increase the buffer size or to have a software or

harware (RTS/CTS) protocoll that handles it.