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by Andrey_Filippov
3746 days ago
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Scott, you are right, and I try to do it that way (there are many registers in the design with "_ram" suffix. But I did have some problems when Vivado incorrectly inferred small non-registered RAM as Block RAM. I was able to modify the design (moving registers from inputs to outputs - https://github.com/Elphel/x393/blob/master/x393_sata/host/el... ) to force Vivado to infer correctly, but still have suspicion that it may not always be the case. So I used wrapper modules for Block RAMS with direct instances, they can be replaced as you suggested. |
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