Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

"Resource temporarily unavailable" while reading from "dev/ttyS0"

Hi all, i have ported uClinux on DE2 2c35 board and i want to use RS232 port on the board to communicate with a PC. I understand that I can use "dev/ttyS0" for that purpose. I can open and write ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

hi ARTEM_BOND,

thanks for ur instructions!

I have set the timeout and wait for a long time. But but I still got no data. specially, every time i try to get data sent from the host by using read function or cat application, both rxd and txd leds on de2 board flash concurrently. I really do not understand the reason. I do not send data from the board.:confused: