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various fixes for 030-iob18 #2072

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merged 5 commits into from
Dec 19, 2022
Merged

various fixes for 030-iob18 #2072

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2ce7ea1
riob18: fix IBUF_LOW_PWR_SUPPORTED
hansfbaier Dec 13, 2022
7800bcb
030-iob18: fix Vref conflict warnigns by assigning the correct Vref
hansfbaier Dec 14, 2022
8ce3922
030-iob18: add manually discovered RIOB18.IOB_Y0.SSTL*.IN feature, re…
hansfbaier Dec 16, 2022
9512609
write_io_banks.tcl: use a reliable way to distinguish high performanc…
hansfbaier Dec 16, 2022
3562cb8
030-iob18: add issue link to hack used in Makefile
hansfbaier Dec 16, 2022
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5 changes: 4 additions & 1 deletion fuzzers/030-iob18/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
# https://opensource.org/licenses/ISC
#
# SPDX-License-Identifier: ISC
N := 80
N := 40
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SPECIMENS_DEPS := build/iobanks.txt
include ../fuzzer.mk

Expand All @@ -23,6 +23,9 @@ build/segbits_riob18.db: build/segbits_riob18.rdb process_rdb.py bits.dbf
sed '/IOB18.IOB_Y1.LVDS/d' -i build/segbits_riob18.rdb
python3 process_rdb.py build/segbits_riob18.rdb > build/segbits_riob18_processed.rdb
${XRAY_DBFIXUP} --db-root build --zero-db bits.dbf --groups tag_groups.txt --seg-fn-in build/segbits_riob18_processed.rdb --seg-fn-out $@
# TODO: This is a hack. See https://github.com/f4pga/prjxray/issues/2073
echo 'RIOB18.IOB_Y0.SSTL12_SSTL135_SSTL15.IN !38_126 39_127' >> $@
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sort -o $@ $@
${XRAY_MASKMERGE} build/mask_riob18.db $$(find -name segdata_riob18.txt)

build/segbits_hclk_ioi.rdb: $(SPECIMENS_OK)
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2 changes: 1 addition & 1 deletion fuzzers/030-iob18/generate.py
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Expand Up @@ -39,7 +39,7 @@ def drives_for_iostandard(iostandard):
return drives

STEPDOWN_IOSTANDARDS = LVCMOS + SSTL
IBUF_LOW_PWR_SUPPORTED = LVDS + DIFF_SSTL
IBUF_LOW_PWR_SUPPORTED = LVDS + SSTL
ONLY_DIFF_IOSTANDARDS = LVDS


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17 changes: 10 additions & 7 deletions fuzzers/030-iob18/top.py
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Expand Up @@ -65,6 +65,15 @@ def run():
"SSTL12": DIFF_SSTL12,
}

vref_map = {
"SSTL12": .600,
"SSTL135": .675,
"SSTL15": .75,
"DIFF_SSTL12": .600,
"DIFF_SSTL135": .675,
"DIFF_SSTL15": .75,
}

only_diff_map = {
"LVDS": ["LVDS"],
}
Expand Down Expand Up @@ -99,13 +108,7 @@ def run():
for iobank in iobanks:
iostandard = random.choice(iostandards)
if iostandard in SSTL:
params['INTERNAL_VREF'][iobank] = random.choice(
(
.600,
.675,
.75,
.90,
))
params['INTERNAL_VREF'][iobank] = vref_map[iostandard]

iostandard_map[iobank] = iostandard

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5 changes: 4 additions & 1 deletion fuzzers/030-iob18/write_io_banks.tcl
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Expand Up @@ -11,7 +11,10 @@ open_io_design -name io_1
set fp [open "iobanks.txt" "w"]
foreach iobank [get_iobanks] {
foreach site [get_sites -of $iobank] {
puts $fp "$site,$iobank"
# we only care about the high performance banks here
if {[string match "BT_HIGH_PERFORMANCE" [get_property BANK_TYPE $iobank]]} {
puts $fp "$site,$iobank"
}
}
}
close $fp
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2 changes: 1 addition & 1 deletion utils/bit2fasm.py
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Expand Up @@ -91,7 +91,7 @@ def main():
'--part', help="Name of part being targetted.", **part_kwargs)
parser.add_argument(
'--bitread',
help="Name of part being targetted.",
help="bitread tool to to use",
default=default_bitread)
parser.add_argument(
'--frame_range', help="Frame range to use with bitread.")
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