mirror of https://github.com/efabless/caravel.git
38 lines
1.5 KiB
ReStructuredText
38 lines
1.5 KiB
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.. raw:: html
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<!---
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# SPDX-FileCopyrightText: 2020 Efabless Corporation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# SPDX-License-Identifier: Apache-2.0
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-->
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====================
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CARAVEL TOPLEVEL ECO
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====================
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ECOs were done on top level caravel for several reasons
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1. `porb_h_in` shorted with `por_l_in` because it was a floating wire
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2. `mgmt_gpio_oeb` was not shorted with `mprj_io_one` in some instances of `gpio_control_block`, this is due to an issue with the router
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3. To get caravel device level LVS clean, mask layer in the IO cells in the library needed modifications, can be found in `gds/caravel+io.gds`
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The non-eco'd views coming out of OpenLane is postfixed by `-openlane`, for example: `gds/caravel-openlane.gds.gz`
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After applying `scripts/create_top_pins.sh` on `caravel.mag`, the views have a postfix `-with-labels`
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The eco'd views have postfix `-eco`
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After running tapeout scripts on `caravel.mag`, the views have a postfix `-signoff`
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