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Altera_Forum
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15 years ago

IORD_ALTERA_AVALON_PIO_DATA to slow?

Hi, I'm trying to capture samples from an A/D Converter and streaming them onto a PC via an ethernet connection. I've extended the triple speed ethernet design example from the Nios II v9.1 instal...
Altera_Forum's avatar
Altera_Forum
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15 years ago

The pio data register access is always 32 bits. If your PIO is 5 bits wide, then the 27 most significant bits will be 0 when you read and ignored when you write. Just use the low 5 bits.