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Altera_Forum's avatar
Altera_Forum
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12 years ago

Bidirection port (PIO) in uClinux

Hi all, does somebody design and program, in which is using pio core in bidirection mode ? I need to communicate between two FPGAs with one control bus (in output pio mode) and bidirection ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Are you sure that your IO_PIO define is the correct address? Sometimes when you regenerate your SOPC/QSYS system, base addresses of some components can change.

Is the PIO device getting its clock?