Forum Discussion

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

Help in CRC custom instructions please.

Hello, I am a new bie in the custom instruction development for Altera and was looking into the way the CRC method is implemented as per the link altera.com/support/examples/nios2/exm-custom-...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Hello Daixiwen,

Really appreciate the help. I did the connections in the SOPC builder as you asked me and I am attaching the screenshot here.

I am getting an error (which I think I can understand) which states the dma master source port does not has a startpacket signal

of 1 bits where as the sink port has.

I have checked the read_mashttps://www.alteraforum.com/forum/attachment.php?attachmentid=7000 ter.v and the hw_*.tcl file which has the interface for the signal. I dont understand why an error like this pops up.

Please help me in fixing this error.

Thank You,

Akhil