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GOWIN. Disable read-before-write mode.

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According to the latest documentation from GOWIN -
"UG285-1.4E Gowin BSRAM & SSRAM User Guide"

The dual port BSRAM of all 55nm devices (including GW1N, GW2A and GW1A
series) does not support the read-before-write mode (WRITE_MODE = 2)

Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
This commit is contained in:
YRabbit 2026-03-05 09:17:37 +10:00
parent 0d7a875675
commit 26dc01102e
1 changed files with 0 additions and 5 deletions
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5
techlibs/gowin/brams.txt
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@ -51,11 +51,6 @@ ram block $__GOWIN_DP_ {
portoption "WRITE_MODE" 1 {
rdwr new;
}
ifndef gw5a {
portoption "WRITE_MODE" 2 {
rdwr old;
}
}
wrbe_separate;
}
}