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Altera_Forum's avatar
Altera_Forum
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12 years ago

Is it save to use the PIO in QSYS

Hello, I have several PIOs in my QSYS design to communicate with some of my own designed IPs. My IPs mostly use other clock signals than the PCIe-Clock and are therefore not synchronized to t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Actually I use a Output PIO to set a value via Software. This Output is routed to my IP which inverts the Value when the clock is high, and doesn't invert the value when the clock is low. Then the inverted/not inverted Output is wired to a PIO as Input.

Therefore the Compiler can't know which value I want to invert/not invert because it is not hard coded.