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Altera_Forum
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17 years ago

DMA reading multiple PIOs

Hi, My system contains a total of twenty two (22) 16-bit I/O ports (Altera PIOs) that are used to read external (10 bit) ADCs. My system is running at 85MHz and my maximum sample rate should b...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

I have given up on the DMA reading for it looks like it will indeed have too much overhead. I also believe that reading the PIO ports using the

IORD_ALTERA_AVALON_PIO_DATA command is too slow. Is there another way to rtead the PIO data? Thanks and have a great weekend!!

Fred