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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
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hi smcnutt,

It works fine now using the unix style open, read and write functions from "unistd.h".

for opening the device: comm_uartfd = open( uart_name, O_RDWR | O_NONBLOCK | O_NOCTTY );

for writing: write( comm_uartfd, src, size )

for reading: res = read( comm_uartfd, &curr_rxd, 1 );

Thanks