2022-10-28 09:45:12 -05:00
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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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2022-11-11 11:34:12 -06:00
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The flow to generate caravel top level:
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=======================================
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==================================================== ============================== ============================= ==========
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Flow Input Filename Output Filename Tool
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==================================================== ============================== ============================= ==========
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def to mag caravel.def caravel-openlane.mag OpenLane
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create_top_pins.sh caravel-openlane.mag caravel-with-label.mag magic
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ECO to gpio_control_block to fix LVS issue caravel-with-label.mag caravel-eco-gpio_control.mag magic GUI
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mag to GDS (build script) caravel-eco-gpio_control.mag caravel-eco-gpio_control.gds magic
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ECO to gpio_control_block to fix LVS issue caravel-eco-gpio_control.gds caravel-eco-gpio_antenna.gds klayout
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GDS to mag caravel-eco-gpio_antenna.gds caravel-eco-antenna.mag magic
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gen_gpio_defaults.py caravel-eco-antenna.mag caravel-signoff.mag python
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mag to GDS (build script) caravel-signoff.mag caravel-signoff.gds magic
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==================================================== ============================== ============================= ==========
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**NOTE: caravel-eco-antenna.mag is the same as caravel.mag (this is for tracebility issues)**
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