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Altera_Forum's avatar
Altera_Forum
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13 years ago

UART port trouble

Hi, Thanks in advance if anyone can shine light to the UART problem I am having. I can open one ttyAL port but can't open all other serial port or communicate to it, and I have name all my p...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Hi,

Thank you very much for your help. I was successful to create the /dev/ttyAL1, /dev/ttyA2, /dev/ttyA3

Here is my syntax:

mknod /dev/ttyAL1 c 4 66

mknod /dev/ttyAL2 c 4 66

mknod /dev/ttyAL3 c 4 66

However, when I try to communicate to it using echo test > /dev/ttyAL2, I get "No such device or address"

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