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Altera_Forum
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17 years ago

How to write the blank room?

I use two separate pathway to translate data to two separate FIFO, then with TDMA style, the data of the two separate pathway is written to a bus. My problem is every frame of the two pathway-da...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Thanks very much. Rysc.

The rate of two pathway data changes from 2~8M. Of course , the formats of the frame change, too. As the pictures I attached.

- Increase bandwidth of data or use it for something else. Many systems will use as much bandwidth as they can get.

Here the bandwidth of data is alterant,.When the rate of them two is 2M , the down_frame will leave some blank room, otherwise, such as 8M, there will be no blank bit-room left.

- Power - Having it drive a constant is best.

I can't have it drive a constant ,because I must avoid the bits in the frame is same with the constant .A bit harder to control.

I use LPM_bustri to write the two separate pathway to bus. When blank room exists, data on the bus is "zzzz". Now the problem changes into the "zzzz" state.Does it work proper?:confused: