cd drive pins to DE2 pins interface

[Altera_Forum]

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 the pin requirements of cd drive to that of the DE2. IF someone knows how to go about it , plz tel me.   Thnx in advance.

[Altera_Forum]

What is the interface on the CD drive? IDE/EIDE (PATA),SATA,SCSI? What you are probably really asking is how to I create an IDE master on the NIOS. 

 Jake

[Altera_Forum]

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.

[Altera_Forum]

hi, 

 thnx.. i plan to use either the PIO mode or the scsi .