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JLee25's avatar
JLee25
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6 years ago

Cyclone IV GX SDI Multi-instances Reference

Hi, I am working on Cyclone IV GX, for multi-instances on Triple Rate SDI. Now I found reference design on loop out, that's fine. But I need multi-instances on my project. Do you have any data ...
CheepinC_altera's avatar
CheepinC_altera
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6 years ago
Hi Johnson, As I understand it, you have some inquiries related to using Triple Rate SDI in CIV GX devices. Sorry as I am not very clear about your specific inquiry. Just wonder if you are referring to how to create multiple instance of TR SDI IP in your design? If yes, as I understand it, each instance of the TR SDI IP only support one channel. You will need duplicate/create multiple instances for every channel that you would required. Please let me know if there is any concern. Thank you. Best regards, Chee Pin
JLee25's avatar
JLee25
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6 years ago

Hi Chee Pin,

Thanks for getting back.

My question is about multi-instance TR SDI, especially reconfiguration.

The project needs 2 instances and each can work independently, 2 sets TR SDI Rx/ Tx, both channels can operate at different rate.

Target device is "EP4CGX30CF23C7",

And I instantiate 2 SDI Rx and 1 SDI Tx all at Triple Rate.

If all the SDIs feed the same clock source, then full compilation is passed.

But once I add another clock as source for Rx, Quartus complaint about not able to fit into the device.

As I realized, this device has 2 MPLL on left block which could be used for transceiver.

Any idea about how I could overcome this problem?

Thank you!

Regards,

Johnson