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Altera_Forum's avatar
Altera_Forum
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11 years ago

PS/2 keyboard not able to detect.

Hi, i am trying to interface my ps/2 keyboard in nios 2 but the device is not getting detected. below is my code. when i am printing ps2->device_type, it appears blank. also see the output be...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Hello,

And to continue, I just found that in the pin assignment editor, the naming convention of the PS2 pins are different depending on the terrasic application builder version.

So if your application does not work, go to pin planner and look for symbols that are not assigned. PS2_KBCLK, PS2_KBDAT is sometimes PS2_CLK and PS2_DAT.

So if you combine .v examples with a project that was generated automatically by the terrasic tools, you could get in trouble.

Best Regards,

Johi.