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Altera_Forum
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12 years ago

uclinux PIO device driver interrupt handler not execute

Hi, Thanks in advance for any help I can get. I have a NIOS2 w/MMU running uClinux v3.7. It's a DE2-115 development kit with Cyclone IV FPGA. I use the PIO megafunction to monitor input rising ...
Altera_Forum's avatar
Altera_Forum
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12 years ago

Hi,

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You are right about the irq signal isn't asserted. I took a screen shot of the signaltap II (attached) and find out the chip select and input clock isn't either.

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Did you set the 'interruptmask register' of your PIO core ? And how many frequencies did you use for capturing of Signal Tap II ?

Kazu