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so-offish | Got confirmation - there's no DRP on the PLLs of the ECP5. | 16:59 |
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gatecat | it's particularly weird when basically any other Lattice FPGA lets you do that too.... | 17:01 |
so-offish | Right? Found out how to do it with their other parts; IDK what happened with the ECP5. | 17:20 |
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so-offish | OK! I have a Yosys question | 22:51 |
so-offish | localparam _STYLE = (STYLE == "") ? "block_ram" : STYLE; | 22:52 |
so-offish | /* syn_ramstyle = _STYLE */ reg [WIDTH-1:0] ram [0:SIZE-1]; | 22:52 |
so-offish | Does this "style" of using a localparam to then fill in a comment work in Yosys, and how would I check? I dumped the design in Yosys, but where would I check that the localparam was "in effect" (because I don't see it) - does it show up in an attribute for that block? | 22:54 |
so-offish | Shoot it might have just been that it should be this: /* synthesis syn_ramstyle = _STYLE */ reg [WIDTH-1:0] ram [0:SIZE-1]; \ | 23:03 |
so-offish | Ahem. I was too early - after synth_ecp5, it shows up just fine. I guess it's processed in that stage, not earlier. Sorry about that; was confused | 23:07 |
so-offish | Yup that appears to work. | 23:29 |
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