Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

cd drive pins to DE2 pins interface

Hi, Iam new to this community. I am trying to take the data directly from a cd drive and do some sort of changes to play or read the data out of NIOSII . how to have an interface that matches th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

You can turn th equestion in an answer: PATA is possible, SATA effectively isn't, SCSI would be possible, but is very unlikely used with a 21th century CD drive. Reading blocks in PIO mode is rather easy, but 5 to 3.3V level translators are most likely required, cause most PATA or IDE devices have a 5V interface. The Cyclone II C35 NIOS board had an IDE interface with level translators, the schematic is available at altera.com.