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-rw-r--r--ecp5/arch.cc5
-rw-r--r--ecp5/arch.h1
-rw-r--r--ecp5/main.cc7
3 files changed, 12 insertions, 1 deletions
diff --git a/ecp5/arch.cc b/ecp5/arch.cc
index 55fe5704..b518323e 100644
--- a/ecp5/arch.cc
+++ b/ecp5/arch.cc
@@ -413,6 +413,11 @@ delay_t Arch::estimateDelay(WireId src, WireId dst) const
return 200 * (abs(src.location.x - dst.location.x) + abs(src.location.y - dst.location.y));
}
+delay_t Arch::getBudgetOverride(const PortRef& pr, delay_t v) const
+{
+ return v;
+}
+
// -----------------------------------------------------------------------
bool Arch::place() { return placer1(getCtx()); }
diff --git a/ecp5/arch.h b/ecp5/arch.h
index b5f3d817..22016fae 100644
--- a/ecp5/arch.h
+++ b/ecp5/arch.h
@@ -776,6 +776,7 @@ struct Arch : BaseCtx
delay_t getRipupDelayPenalty() const { return 200; }
float getDelayNS(delay_t v) const { return v * 0.001; }
uint32_t getDelayChecksum(delay_t v) const { return v; }
+ delay_t getBudgetOverride(const PortRef& pr, delay_t v) const;
// -------------------------------------------------
diff --git a/ecp5/main.cc b/ecp5/main.cc
index 90096855..6087728c 100644
--- a/ecp5/main.cc
+++ b/ecp5/main.cc
@@ -169,8 +169,13 @@ int main(int argc, char *argv[])
if (!ctx->pack() && !ctx->force)
log_error("Packing design failed.\n");
- if (vm.count("freq"))
+ if (vm.count("freq")) {
ctx->target_freq = vm["freq"].as<double>() * 1e6;
+ ctx->user_freq = true;
+ }
+ else {
+ log_warning("Target frequency not specified. Will optimise for max frequency.\n");
+ }
assign_budget(ctx.get());
ctx->check();
print_utilisation(ctx.get());