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Altera_Forum
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15 years ago

Implementing interrupt based PIO read for NIOS II

Hello, I'm working on embedded system software design for the first time. So i have difficulties in understanding UCOSII, Niche stack TCP/IP stack capabilities and its usage. Details of the probl...
Altera_Forum's avatar
Altera_Forum
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15 years ago

Hi Cris, Thanks for the reply, In fact even i have very less idea about how the context variable is used in the alt_irq_register. I have just blindly copied the code from NIOS ide design examplecalled count binary.

I tried reading my pio data by just sampling the rdclk and rden signal inside while in the main function itself. But my data is not sampled correctly. I'm getting some random samples or otherwise the same data repeated twice or thrice. Kindly let me know if you get any idea.