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scripts/icestorm: check circuit @ 62MHz 

With arachne-pnr this circuit couldn't hit 60MHz, just barely under it.
OTOH, nextpnr hits about ~68 MHz. So let's set it somewhere inbetween to
make sure this is true over time!

Signed-off-by: Austin Seipp <aseipp@pobox.com>
This commit is contained in:
Austin Seipp 2019-01-11 16:49:33 -06:00
parent af3b1bb75d
commit 1c7f51ed60
1 changed files with 1 additions and 1 deletions
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scripts/icestorm/Makefile
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@ -86,7 +86,7 @@ prog_sram: example.bin
iceprog -S $< iceprog -S $<
timing: example.asc example.pcf timing: example.asc example.pcf
icetime -c 12 -tmd hx8k -P ct256 -p example.pcf -t $< icetime -c 62 -tmd hx8k -P ct256 -p example.pcf -t $<
view: example.vcd view: example.vcd
gtkwave $< example.gtkw gtkwave $< example.gtkw