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ecp5: Fix tristate IO insertion

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Fixes #191

Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-12-22 10:11:18 +00:00
parent 8f5d5003e9
commit e76479f379
1 changed files with 1 additions and 1 deletions
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2
ecp5/cells.cc
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@ -416,7 +416,7 @@ void nxio_to_tr(Context *ctx, CellInfo *nxio, CellInfo *trio, std::vector<std::u
ctx, donet, [](const Context *ctx, const CellInfo *cell) { return cell->type == ctx->id("$_TBUF_"); },
ctx->id("Y"));
if (tbuf) {
replace_port(tbuf, ctx->id("I"), trio, ctx->id("I"));
replace_port(tbuf, ctx->id("A"), trio, ctx->id("I"));
// Need to invert E to form T
std::unique_ptr<CellInfo> inv_lut = create_ecp5_cell(ctx, ctx->id("LUT4"), trio->name.str(ctx) + "$invert_T");
replace_port(tbuf, ctx->id("E"), inv_lut.get(), ctx->id("A"));