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ecp5: EBR clocking fix

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2018-11-04 15:11:01 +00:00
parent dab70466cd
commit 11579a1046
1 changed files with 8 additions and 5 deletions
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13
ecp5/arch.cc
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@ -683,15 +683,18 @@ TimingClockingInfo Arch::getPortClockingInfo(const CellInfo *cell, IdString port
info.clockToQ.delay = 395;
}
} else if (cell->type == id_DP16KD) {
for (auto c : boost::adaptors::reverse(port.str(this))) {
std::string port_name = port.str(this);
for (auto c : boost::adaptors::reverse(port_name)) {
if (std::isdigit(c))
continue;
if (c == 'A')
if (c == 'A') {
info.clock_port = id_CLKA;
else if (c == 'B')
break;
} else if (c == 'B') {
info.clock_port = id_CLKB;
else
NPNR_ASSERT_FALSE_STR("bad ram port");
break;
} else
NPNR_ASSERT_FALSE_STR("bad ram port " + port.str(this));
}
info.edge = (str_or_default(cell->params, info.clock_port == id_CLKB ? id("CLKBMUX") : id("CLKAMUX"), "CLK") ==
"INV")